cleanup tools/run_tests directory
diff --git a/tools/buildgen/generate_projects.py b/tools/buildgen/generate_projects.py
index 5e78ad5..f8ddaf4 100755
--- a/tools/buildgen/generate_projects.py
+++ b/tools/buildgen/generate_projects.py
@@ -36,7 +36,7 @@
 import sys
 import tempfile
 import multiprocessing
-sys.path.append(os.path.join(os.path.dirname(sys.argv[0]), '..', 'run_tests'))
+sys.path.append(os.path.join(os.path.dirname(sys.argv[0]), '..', 'run_tests', 'python_utils'))
 
 assert sys.argv[1:], 'run generate_projects.sh instead of this directly'
 
diff --git a/tools/run_tests/run_ruby.sh b/tools/run_tests/artifacts/__init__.py
old mode 100755
new mode 100644
similarity index 92%
copy from tools/run_tests/run_ruby.sh
copy to tools/run_tests/artifacts/__init__.py
index 73a84ac..100a624
--- a/tools/run_tests/run_ruby.sh
+++ b/tools/run_tests/artifacts/__init__.py
@@ -1,5 +1,4 @@
-#!/bin/bash
-# Copyright 2015, Google Inc.
+# Copyright 2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,10 +26,3 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-set -ex
-
-# change to grpc repo root
-cd $(dirname $0)/../..
-
-rake
diff --git a/tools/run_tests/artifact_targets.py b/tools/run_tests/artifacts/artifact_targets.py
similarity index 89%
rename from tools/run_tests/artifact_targets.py
rename to tools/run_tests/artifacts/artifact_targets.py
index 65d34e1..005d997 100644
--- a/tools/run_tests/artifact_targets.py
+++ b/tools/run_tests/artifacts/artifact_targets.py
@@ -35,7 +35,8 @@
 import string
 import sys
 
-import jobset
+sys.path.insert(0, os.path.abspath('..'))
+import python_utils.jobset as jobset
 
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
@@ -113,7 +114,7 @@
       environ['GRPC_BUILD_MANYLINUX_WHEEL'] = 'TRUE'
       return create_docker_jobspec(self.name,
           'tools/dockerfile/grpc_artifact_python_manylinux_%s' % self.arch,
-          'tools/run_tests/build_artifact_python.sh',
+          'tools/run_tests/artifacts/build_artifact_python.sh',
           environ=environ,
           timeout_seconds=60*60)
     elif self.platform == 'windows':
@@ -125,7 +126,7 @@
       # seed.  We create a random temp-dir here
       dir = ''.join(random.choice(string.ascii_uppercase) for _ in range(10))
       return create_jobspec(self.name,
-                            ['tools\\run_tests\\build_artifact_python.bat',
+                            ['tools\\run_tests\\artifacts\\build_artifact_python.bat',
                              self.py_version,
                              '32' if self.arch == 'x86' else '64',
                              dir
@@ -136,7 +137,7 @@
       environ['PYTHON'] = self.py_version
       environ['SKIP_PIP_INSTALL'] = 'TRUE'
       return create_jobspec(self.name,
-                            ['tools/run_tests/build_artifact_python.sh'],
+                            ['tools/run_tests/artifacts/build_artifact_python.sh'],
                             environ=environ)
 
   def __str__(self):
@@ -165,11 +166,11 @@
           environ['SETARCH_CMD'] = 'linux32'
         return create_docker_jobspec(self.name,
             'tools/dockerfile/grpc_artifact_linux_%s' % self.arch,
-            'tools/run_tests/build_artifact_ruby.sh',
+            'tools/run_tests/artifacts/build_artifact_ruby.sh',
             environ=environ)
       else:
         return create_jobspec(self.name,
-                              ['tools/run_tests/build_artifact_ruby.sh'])
+                              ['tools/run_tests/artifacts/build_artifact_ruby.sh'])
 
 
 class CSharpExtArtifact:
@@ -184,7 +185,7 @@
   def pre_build_jobspecs(self):
     if self.platform == 'windows':
       return [create_jobspec('prebuild_%s' % self.name,
-                             ['tools\\run_tests\\pre_build_c.bat'],
+                             ['tools\\run_tests\\helper_scripts\\pre_build_c.bat'],
                              shell=True,
                              flake_retries=5,
                              timeout_retries=2)]
@@ -195,7 +196,7 @@
     if self.platform == 'windows':
       msbuild_platform = 'Win32' if self.arch == 'x86' else self.arch
       return create_jobspec(self.name,
-                            ['tools\\run_tests\\build_artifact_csharp.bat',
+                            ['tools\\run_tests\\artifacts\\build_artifact_csharp.bat',
                              'vsprojects\\grpc_csharp_ext.sln',
                              '/p:Configuration=Release',
                              '/p:PlatformToolset=v120',
@@ -210,14 +211,14 @@
       if self.platform == 'linux':
         return create_docker_jobspec(self.name,
             'tools/dockerfile/grpc_artifact_linux_%s' % self.arch,
-            'tools/run_tests/build_artifact_csharp.sh',
+            'tools/run_tests/artifacts/build_artifact_csharp.sh',
             environ=environ)
       else:
         archflag = _ARCH_FLAG_MAP[self.arch]
         environ['CFLAGS'] += ' %s %s' % (archflag, _MACOS_COMPAT_FLAG)
         environ['LDFLAGS'] += ' %s' % archflag
         return create_jobspec(self.name,
-                              ['tools/run_tests/build_artifact_csharp.sh'],
+                              ['tools/run_tests/artifacts/build_artifact_csharp.sh'],
                               environ=environ)
 
   def __str__(self):
@@ -245,7 +246,7 @@
   def build_jobspec(self):
     if self.platform == 'windows':
       return create_jobspec(self.name,
-                            ['tools\\run_tests\\build_artifact_node.bat',
+                            ['tools\\run_tests\\artifacts\\build_artifact_node.bat',
                              self.gyp_arch],
                             shell=True)
     else:
@@ -253,10 +254,10 @@
         return create_docker_jobspec(
             self.name,
             'tools/dockerfile/grpc_artifact_linux_{}'.format(self.arch),
-            'tools/run_tests/build_artifact_node.sh {}'.format(self.gyp_arch))
+            'tools/run_tests/artifacts/build_artifact_node.sh {}'.format(self.gyp_arch))
       else:
         return create_jobspec(self.name,
-                              ['tools/run_tests/build_artifact_node.sh',
+                              ['tools/run_tests/artifacts/build_artifact_node.sh',
                                self.gyp_arch])
 
 class PHPArtifact:
@@ -276,10 +277,10 @@
       return create_docker_jobspec(
           self.name,
           'tools/dockerfile/grpc_artifact_linux_{}'.format(self.arch),
-          'tools/run_tests/build_artifact_php.sh')
+          'tools/run_tests/artifacts/build_artifact_php.sh')
     else:
       return create_jobspec(self.name,
-                            ['tools/run_tests/build_artifact_php.sh'])
+                            ['tools/run_tests/artifacts/build_artifact_php.sh'])
 
 class ProtocArtifact:
   """Builds protoc and protoc-plugin artifacts"""
@@ -306,18 +307,18 @@
       if self.platform == 'linux':
         return create_docker_jobspec(self.name,
             'tools/dockerfile/grpc_artifact_protoc',
-            'tools/run_tests/build_artifact_protoc.sh',
+            'tools/run_tests/artifacts/build_artifact_protoc.sh',
             environ=environ)
       else:
         environ['CXXFLAGS'] += ' -std=c++11 -stdlib=libc++ %s' % _MACOS_COMPAT_FLAG
         return create_jobspec(self.name,
-            ['tools/run_tests/build_artifact_protoc.sh'],
+            ['tools/run_tests/artifacts/build_artifact_protoc.sh'],
             environ=environ)
     else:
       generator = 'Visual Studio 12 Win64' if self.arch == 'x64' else 'Visual Studio 12' 
       vcplatform = 'x64' if self.arch == 'x64' else 'Win32'
       return create_jobspec(self.name,
-                            ['tools\\run_tests\\build_artifact_protoc.bat'],
+                            ['tools\\run_tests\\artifacts\\build_artifact_protoc.bat'],
                             environ={'generator': generator,
                                      'Platform': vcplatform})
 
diff --git a/tools/run_tests/build_artifact_csharp.bat b/tools/run_tests/artifacts/build_artifact_csharp.bat
similarity index 100%
rename from tools/run_tests/build_artifact_csharp.bat
rename to tools/run_tests/artifacts/build_artifact_csharp.bat
diff --git a/tools/run_tests/build_artifact_csharp.sh b/tools/run_tests/artifacts/build_artifact_csharp.sh
similarity index 98%
rename from tools/run_tests/build_artifact_csharp.sh
rename to tools/run_tests/artifacts/build_artifact_csharp.sh
index 7438713..aed04b2 100755
--- a/tools/run_tests/build_artifact_csharp.sh
+++ b/tools/run_tests/artifacts/build_artifact_csharp.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 make grpc_csharp_ext
 
diff --git a/tools/run_tests/build_artifact_node.bat b/tools/run_tests/artifacts/build_artifact_node.bat
similarity index 100%
rename from tools/run_tests/build_artifact_node.bat
rename to tools/run_tests/artifacts/build_artifact_node.bat
diff --git a/tools/run_tests/build_artifact_node.sh b/tools/run_tests/artifacts/build_artifact_node.sh
similarity index 98%
rename from tools/run_tests/build_artifact_node.sh
rename to tools/run_tests/artifacts/build_artifact_node.sh
index 778a5c9..1066ebd 100755
--- a/tools/run_tests/build_artifact_node.sh
+++ b/tools/run_tests/artifacts/build_artifact_node.sh
@@ -34,7 +34,7 @@
 nvm use 4
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 rm -rf build || true
 
diff --git a/tools/run_tests/build_artifact_php.sh b/tools/run_tests/artifacts/build_artifact_php.sh
similarity index 98%
rename from tools/run_tests/build_artifact_php.sh
rename to tools/run_tests/artifacts/build_artifact_php.sh
index 669447f..c8d5586 100755
--- a/tools/run_tests/build_artifact_php.sh
+++ b/tools/run_tests/artifacts/build_artifact_php.sh
@@ -31,7 +31,7 @@
 PHP_TARGET_ARCH=$1
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 mkdir -p artifacts
 
diff --git a/tools/run_tests/build_artifact_protoc.bat b/tools/run_tests/artifacts/build_artifact_protoc.bat
similarity index 96%
rename from tools/run_tests/build_artifact_protoc.bat
rename to tools/run_tests/artifacts/build_artifact_protoc.bat
index b2bf86d..fd93318 100644
--- a/tools/run_tests/build_artifact_protoc.bat
+++ b/tools/run_tests/artifacts/build_artifact_protoc.bat
@@ -34,7 +34,7 @@
 
 mkdir build & cd build
 mkdir solution & cd solution
-cmake -G "%generator%" -Dprotobuf_BUILD_TESTS=OFF ../.. || goto :error
+cmake -G "%generator%" -Dprotobuf_BUILD_TESTS=OFF ../../.. || goto :error
 endlocal
 
 call vsprojects/build_plugins.bat || goto :error
diff --git a/tools/run_tests/build_artifact_protoc.sh b/tools/run_tests/artifacts/build_artifact_protoc.sh
similarity index 98%
rename from tools/run_tests/build_artifact_protoc.sh
rename to tools/run_tests/artifacts/build_artifact_protoc.sh
index 161d3a8..26c2280 100755
--- a/tools/run_tests/build_artifact_protoc.sh
+++ b/tools/run_tests/artifacts/build_artifact_protoc.sh
@@ -33,7 +33,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 make plugins
 
diff --git a/tools/run_tests/build_artifact_python.bat b/tools/run_tests/artifacts/build_artifact_python.bat
similarity index 100%
rename from tools/run_tests/build_artifact_python.bat
rename to tools/run_tests/artifacts/build_artifact_python.bat
diff --git a/tools/run_tests/build_artifact_python.sh b/tools/run_tests/artifacts/build_artifact_python.sh
similarity index 99%
rename from tools/run_tests/build_artifact_python.sh
rename to tools/run_tests/artifacts/build_artifact_python.sh
index 2a1d41f..5a55060 100755
--- a/tools/run_tests/build_artifact_python.sh
+++ b/tools/run_tests/artifacts/build_artifact_python.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 export GRPC_PYTHON_USE_CUSTOM_BDIST=0
 export GRPC_PYTHON_BUILD_WITH_CYTHON=1
diff --git a/tools/run_tests/build_artifact_ruby.sh b/tools/run_tests/artifacts/build_artifact_ruby.sh
similarity index 98%
rename from tools/run_tests/build_artifact_ruby.sh
rename to tools/run_tests/artifacts/build_artifact_ruby.sh
index 2d97b40..019efb0 100755
--- a/tools/run_tests/build_artifact_ruby.sh
+++ b/tools/run_tests/artifacts/build_artifact_ruby.sh
@@ -31,7 +31,7 @@
 
 SYSTEM=`uname | cut -f 1 -d_`
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 set +ex
 [[ -s /etc/profile.d/rvm.sh ]] && . /etc/profile.d/rvm.sh
 [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
diff --git a/tools/run_tests/build_package_node.sh b/tools/run_tests/artifacts/build_package_node.sh
similarity index 98%
rename from tools/run_tests/build_package_node.sh
rename to tools/run_tests/artifacts/build_package_node.sh
index a5636cf..8b5e8c0 100755
--- a/tools/run_tests/build_package_node.sh
+++ b/tools/run_tests/artifacts/build_package_node.sh
@@ -33,7 +33,7 @@
 nvm use 4
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 base=$(pwd)
 
diff --git a/tools/run_tests/build_package_php.sh b/tools/run_tests/artifacts/build_package_php.sh
similarity index 98%
rename from tools/run_tests/build_package_php.sh
rename to tools/run_tests/artifacts/build_package_php.sh
index 56e3319..42a8d9f 100755
--- a/tools/run_tests/build_package_php.sh
+++ b/tools/run_tests/artifacts/build_package_php.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 mkdir -p artifacts/
 cp -r $EXTERNAL_GIT_ROOT/architecture={x86,x64},language=php,platform={windows,linux,macos}/artifacts/* artifacts/ || true
diff --git a/tools/run_tests/build_package_python.sh b/tools/run_tests/artifacts/build_package_python.sh
similarity index 98%
rename from tools/run_tests/build_package_python.sh
rename to tools/run_tests/artifacts/build_package_python.sh
index 2511a6a..4a1c15c 100755
--- a/tools/run_tests/build_package_python.sh
+++ b/tools/run_tests/artifacts/build_package_python.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 mkdir -p artifacts/
 
diff --git a/tools/run_tests/build_package_ruby.sh b/tools/run_tests/artifacts/build_package_ruby.sh
similarity index 98%
rename from tools/run_tests/build_package_ruby.sh
rename to tools/run_tests/artifacts/build_package_ruby.sh
index 0a755bd..b4d20d8 100755
--- a/tools/run_tests/build_package_ruby.sh
+++ b/tools/run_tests/artifacts/build_package_ruby.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 base=$(pwd)
 
diff --git a/tools/run_tests/distribtest_targets.py b/tools/run_tests/artifacts/distribtest_targets.py
similarity index 98%
rename from tools/run_tests/distribtest_targets.py
rename to tools/run_tests/artifacts/distribtest_targets.py
index a16daac..a7535b3 100644
--- a/tools/run_tests/distribtest_targets.py
+++ b/tools/run_tests/artifacts/distribtest_targets.py
@@ -30,7 +30,11 @@
 
 """Definition of targets run distribution package tests."""
 
-import jobset
+import os.path
+import sys
+
+sys.path.insert(0, os.path.abspath('..'))
+import python_utils.jobset as jobset
 
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
diff --git a/tools/run_tests/package_targets.py b/tools/run_tests/artifacts/package_targets.py
similarity index 93%
rename from tools/run_tests/package_targets.py
rename to tools/run_tests/artifacts/package_targets.py
index 673affe..d490f57 100644
--- a/tools/run_tests/package_targets.py
+++ b/tools/run_tests/artifacts/package_targets.py
@@ -30,7 +30,12 @@
 
 """Definition of targets to build distribution packages."""
 
-import jobset
+import os.path
+import sys
+
+sys.path.insert(0, os.path.abspath('..'))
+import python_utils.jobset as jobset
+
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
                    flake_retries=0, timeout_retries=0):
@@ -114,7 +119,7 @@
     return create_docker_jobspec(
         self.name,
         'tools/dockerfile/grpc_artifact_linux_x64',
-        'tools/run_tests/build_package_node.sh')
+        'tools/run_tests/artifacts/build_package_node.sh')
 
 
 class RubyPackage:
@@ -131,7 +136,7 @@
     return create_docker_jobspec(
         self.name,
         'tools/dockerfile/grpc_artifact_linux_x64',
-        'tools/run_tests/build_package_ruby.sh')
+        'tools/run_tests/artifacts/build_package_ruby.sh')
 
 
 class PythonPackage:
@@ -148,7 +153,7 @@
     return create_docker_jobspec(
         self.name,
         'tools/dockerfile/grpc_artifact_linux_x64',
-        'tools/run_tests/build_package_python.sh')
+        'tools/run_tests/artifacts/build_package_python.sh')
 
 
 class PHPPackage:
@@ -165,7 +170,7 @@
     return create_docker_jobspec(
         self.name,
         'tools/dockerfile/grpc_artifact_linux_x64',
-        'tools/run_tests/build_package_php.sh')
+        'tools/run_tests/artifacts/build_package_php.sh')
 
 
 def targets():
diff --git a/tools/run_tests/build_stats_schema.json b/tools/run_tests/build_stats/build_stats_schema.json
similarity index 100%
rename from tools/run_tests/build_stats_schema.json
rename to tools/run_tests/build_stats/build_stats_schema.json
diff --git a/tools/run_tests/build_stats_schema_no_matrix.json b/tools/run_tests/build_stats/build_stats_schema_no_matrix.json
similarity index 100%
rename from tools/run_tests/build_stats_schema_no_matrix.json
rename to tools/run_tests/build_stats/build_stats_schema_no_matrix.json
diff --git a/tools/run_tests/configs.json b/tools/run_tests/generated/configs.json
similarity index 100%
rename from tools/run_tests/configs.json
rename to tools/run_tests/generated/configs.json
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
similarity index 100%
rename from tools/run_tests/sources_and_headers.json
rename to tools/run_tests/generated/sources_and_headers.json
diff --git a/tools/run_tests/tests.json b/tools/run_tests/generated/tests.json
similarity index 100%
rename from tools/run_tests/tests.json
rename to tools/run_tests/generated/tests.json
diff --git a/tools/run_tests/build_csharp.sh b/tools/run_tests/helper_scripts/build_csharp.sh
similarity index 97%
rename from tools/run_tests/build_csharp.sh
rename to tools/run_tests/helper_scripts/build_csharp.sh
index 48ce11a..84c5b1c 100755
--- a/tools/run_tests/build_csharp.sh
+++ b/tools/run_tests/helper_scripts/build_csharp.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../../src/csharp
+cd $(dirname $0)/../../../src/csharp
 
 # overriding NativeDependenciesConfigurationUnix is needed to make gcov code coverage work.
 xbuild /p:Configuration=$MSBUILD_CONFIG /p:NativeDependenciesConfigurationUnix=$CONFIG Grpc.sln
diff --git a/tools/run_tests/build_csharp_coreclr.bat b/tools/run_tests/helper_scripts/build_csharp_coreclr.bat
similarity index 97%
rename from tools/run_tests/build_csharp_coreclr.bat
rename to tools/run_tests/helper_scripts/build_csharp_coreclr.bat
index b6e3ccb..78e5f59 100644
--- a/tools/run_tests/build_csharp_coreclr.bat
+++ b/tools/run_tests/helper_scripts/build_csharp_coreclr.bat
@@ -29,7 +29,7 @@
 
 setlocal
 
-cd /d %~dp0\..\..\src\csharp
+cd /d %~dp0\..\..\..\src\csharp
 
 dotnet restore . || goto :error
 
diff --git a/tools/run_tests/build_csharp_coreclr.sh b/tools/run_tests/helper_scripts/build_csharp_coreclr.sh
similarity index 97%
rename from tools/run_tests/build_csharp_coreclr.sh
rename to tools/run_tests/helper_scripts/build_csharp_coreclr.sh
index 02cf0d3..dd5fd31 100755
--- a/tools/run_tests/build_csharp_coreclr.sh
+++ b/tools/run_tests/helper_scripts/build_csharp_coreclr.sh
@@ -30,7 +30,7 @@
 
 set -ex
 
-cd $(dirname $0)/../../src/csharp
+cd $(dirname $0)/../../../src/csharp
 
 # TODO(jtattermusch): introduce caching
 dotnet restore .
diff --git a/tools/run_tests/build_node.bat b/tools/run_tests/helper_scripts/build_node.bat
similarity index 100%
rename from tools/run_tests/build_node.bat
rename to tools/run_tests/helper_scripts/build_node.bat
diff --git a/tools/run_tests/build_node.sh b/tools/run_tests/helper_scripts/build_node.sh
similarity index 98%
rename from tools/run_tests/build_node.sh
rename to tools/run_tests/helper_scripts/build_node.sh
index d9292fd..8a928bb 100755
--- a/tools/run_tests/build_node.sh
+++ b/tools/run_tests/helper_scripts/build_node.sh
@@ -38,6 +38,6 @@
 CONFIG=${CONFIG:-opt}
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 npm install --unsafe-perm --build-from-source
diff --git a/tools/run_tests/build_php.sh b/tools/run_tests/helper_scripts/build_php.sh
similarity index 98%
rename from tools/run_tests/build_php.sh
rename to tools/run_tests/helper_scripts/build_php.sh
index 77a8abc..acaaa23 100755
--- a/tools/run_tests/build_php.sh
+++ b/tools/run_tests/helper_scripts/build_php.sh
@@ -33,7 +33,7 @@
 CONFIG=${CONFIG:-opt}
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 root=`pwd`
 export GRPC_LIB_SUBDIR=libs/$CONFIG
diff --git a/tools/run_tests/build_python.sh b/tools/run_tests/helper_scripts/build_python.sh
similarity index 99%
rename from tools/run_tests/build_python.sh
rename to tools/run_tests/helper_scripts/build_python.sh
index 7cac394..0e88e96 100755
--- a/tools/run_tests/build_python.sh
+++ b/tools/run_tests/helper_scripts/build_python.sh
@@ -31,7 +31,7 @@
 set -ex
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 ##########################
 # Portability operations #
diff --git a/tools/run_tests/build_python_msys2.sh b/tools/run_tests/helper_scripts/build_python_msys2.sh
similarity index 100%
rename from tools/run_tests/build_python_msys2.sh
rename to tools/run_tests/helper_scripts/build_python_msys2.sh
diff --git a/tools/run_tests/build_ruby.sh b/tools/run_tests/helper_scripts/build_ruby.sh
similarity index 98%
rename from tools/run_tests/build_ruby.sh
rename to tools/run_tests/helper_scripts/build_ruby.sh
index 10343fc..32638de 100755
--- a/tools/run_tests/build_ruby.sh
+++ b/tools/run_tests/helper_scripts/build_ruby.sh
@@ -34,7 +34,7 @@
 export GRPC_CONFIG=${CONFIG:-opt}
 
 # change to grpc's ruby directory
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 rm -rf ./tmp
 rake compile
diff --git a/tools/run_tests/post_tests_c.sh b/tools/run_tests/helper_scripts/post_tests_c.sh
similarity index 97%
rename from tools/run_tests/post_tests_c.sh
rename to tools/run_tests/helper_scripts/post_tests_c.sh
index 4409526..a83a59e 100755
--- a/tools/run_tests/post_tests_c.sh
+++ b/tools/run_tests/helper_scripts/post_tests_c.sh
@@ -32,7 +32,7 @@
 
 if [ "$CONFIG" != "gcov" ] ; then exit ; fi
 
-root=$(readlink -f $(dirname $0)/../..)
+root=$(readlink -f $(dirname $0)/../../..)
 out=$root/reports/c_cxx_coverage
 tmp1=$(mktemp)
 tmp2=$(mktemp)
diff --git a/tools/run_tests/post_tests_csharp.bat b/tools/run_tests/helper_scripts/post_tests_csharp.bat
similarity index 98%
rename from tools/run_tests/post_tests_csharp.bat
rename to tools/run_tests/helper_scripts/post_tests_csharp.bat
index 0d49a00..2359f14 100644
--- a/tools/run_tests/post_tests_csharp.bat
+++ b/tools/run_tests/helper_scripts/post_tests_csharp.bat
@@ -36,7 +36,7 @@
 )
 
 @rem enter src/csharp directory
-cd /d %~dp0\..\..\src\csharp
+cd /d %~dp0\..\..\..\src\csharp
 
 @rem Generate code coverage report
 @rem TODO(jtattermusch): currently the report list is hardcoded
diff --git a/tools/run_tests/post_tests_csharp.sh b/tools/run_tests/helper_scripts/post_tests_csharp.sh
similarity index 98%
rename from tools/run_tests/post_tests_csharp.sh
rename to tools/run_tests/helper_scripts/post_tests_csharp.sh
index bb6f5c6..762c1f8 100755
--- a/tools/run_tests/post_tests_csharp.sh
+++ b/tools/run_tests/helper_scripts/post_tests_csharp.sh
@@ -33,7 +33,7 @@
 if [ "$CONFIG" != "gcov" ] ; then exit ; fi
 
 # change to gRPC repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 # Generate the csharp extension coverage report
 gcov objs/gcov/src/csharp/ext/*.o
diff --git a/tools/run_tests/post_tests_php.sh b/tools/run_tests/helper_scripts/post_tests_php.sh
similarity index 97%
rename from tools/run_tests/post_tests_php.sh
rename to tools/run_tests/helper_scripts/post_tests_php.sh
index b409806..23dc202 100755
--- a/tools/run_tests/post_tests_php.sh
+++ b/tools/run_tests/helper_scripts/post_tests_php.sh
@@ -32,7 +32,7 @@
 
 if [ "$CONFIG" != "gcov" ] ; then exit ; fi
 
-root=$(readlink -f $(dirname $0)/../..)
+root=$(readlink -f $(dirname $0)/../../..)
 out=$root/reports/php_ext_coverage
 tmp1=$(mktemp)
 tmp2=$(mktemp)
diff --git a/tools/run_tests/post_tests_ruby.sh b/tools/run_tests/helper_scripts/post_tests_ruby.sh
similarity index 97%
rename from tools/run_tests/post_tests_ruby.sh
rename to tools/run_tests/helper_scripts/post_tests_ruby.sh
index 0877e44..300edfe 100755
--- a/tools/run_tests/post_tests_ruby.sh
+++ b/tools/run_tests/helper_scripts/post_tests_ruby.sh
@@ -32,7 +32,7 @@
 
 if [ "$CONFIG" != "gcov" ] ; then exit ; fi
 
-root=$(readlink -f $(dirname $0)/../..)
+root=$(readlink -f $(dirname $0)/../../..)
 out=$root/reports/ruby_ext_coverage
 tmp1=$(mktemp)
 tmp2=$(mktemp)
diff --git a/tools/run_tests/pre_build_c.bat b/tools/run_tests/helper_scripts/pre_build_c.bat
similarity index 98%
rename from tools/run_tests/pre_build_c.bat
rename to tools/run_tests/helper_scripts/pre_build_c.bat
index e4ab693..75b90f8 100644
--- a/tools/run_tests/pre_build_c.bat
+++ b/tools/run_tests/helper_scripts/pre_build_c.bat
@@ -32,7 +32,7 @@
 setlocal
 
 @rem enter repo root
-cd /d %~dp0\..\..
+cd /d %~dp0\..\..\..
 
 @rem Location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
diff --git a/tools/run_tests/pre_build_csharp.bat b/tools/run_tests/helper_scripts/pre_build_csharp.bat
similarity index 99%
rename from tools/run_tests/pre_build_csharp.bat
rename to tools/run_tests/helper_scripts/pre_build_csharp.bat
index f15979a..139955d 100644
--- a/tools/run_tests/pre_build_csharp.bat
+++ b/tools/run_tests/helper_scripts/pre_build_csharp.bat
@@ -32,7 +32,7 @@
 setlocal
 
 @rem enter repo root
-cd /d %~dp0\..\..
+cd /d %~dp0\..\..\..
 
 @rem Location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
diff --git a/tools/run_tests/pre_build_csharp.sh b/tools/run_tests/helper_scripts/pre_build_csharp.sh
similarity index 98%
rename from tools/run_tests/pre_build_csharp.sh
rename to tools/run_tests/helper_scripts/pre_build_csharp.sh
index ee678dd..1f80855 100755
--- a/tools/run_tests/pre_build_csharp.sh
+++ b/tools/run_tests/helper_scripts/pre_build_csharp.sh
@@ -31,7 +31,7 @@
 set -ex
 
 # cd to gRPC csharp directory
-cd $(dirname $0)/../../src/csharp
+cd $(dirname $0)/../../../src/csharp
 
 root=`pwd`
 
diff --git a/tools/run_tests/pre_build_node.bat b/tools/run_tests/helper_scripts/pre_build_node.bat
similarity index 100%
rename from tools/run_tests/pre_build_node.bat
rename to tools/run_tests/helper_scripts/pre_build_node.bat
diff --git a/tools/run_tests/pre_build_node.sh b/tools/run_tests/helper_scripts/pre_build_node.sh
similarity index 100%
rename from tools/run_tests/pre_build_node.sh
rename to tools/run_tests/helper_scripts/pre_build_node.sh
diff --git a/tools/run_tests/pre_build_ruby.sh b/tools/run_tests/helper_scripts/pre_build_ruby.sh
similarity index 98%
rename from tools/run_tests/pre_build_ruby.sh
rename to tools/run_tests/helper_scripts/pre_build_ruby.sh
index e7074c4..56b58df 100755
--- a/tools/run_tests/pre_build_ruby.sh
+++ b/tools/run_tests/helper_scripts/pre_build_ruby.sh
@@ -34,6 +34,6 @@
 export GRPC_CONFIG=${CONFIG:-opt}
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 bundle install
diff --git a/tools/run_tests/run_lcov.sh b/tools/run_tests/helper_scripts/run_lcov.sh
similarity index 97%
rename from tools/run_tests/run_lcov.sh
rename to tools/run_tests/helper_scripts/run_lcov.sh
index 796a0b5..bc7b44c 100755
--- a/tools/run_tests/run_lcov.sh
+++ b/tools/run_tests/helper_scripts/run_lcov.sh
@@ -32,7 +32,7 @@
 
 out=$(readlink -f ${1:-coverage})
 
-root=$(readlink -f $(dirname $0)/../..)
+root=$(readlink -f $(dirname $0)/../../..)
 shift || true
 tmp=$(mktemp)
 cd $root
diff --git a/tools/run_tests/run_node.bat b/tools/run_tests/helper_scripts/run_node.bat
similarity index 100%
rename from tools/run_tests/run_node.bat
rename to tools/run_tests/helper_scripts/run_node.bat
diff --git a/tools/run_tests/run_node.sh b/tools/run_tests/helper_scripts/run_node.sh
similarity index 98%
rename from tools/run_tests/run_node.sh
rename to tools/run_tests/helper_scripts/run_node.sh
index 44f7564..0fafe94 100755
--- a/tools/run_tests/run_node.sh
+++ b/tools/run_tests/helper_scripts/run_node.sh
@@ -37,7 +37,7 @@
 CONFIG=${CONFIG:-opt}
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 root=`pwd`
 
diff --git a/tools/run_tests/run_python.sh b/tools/run_tests/helper_scripts/run_python.sh
similarity index 98%
rename from tools/run_tests/run_python.sh
rename to tools/run_tests/helper_scripts/run_python.sh
index 17e0186..7be4734 100755
--- a/tools/run_tests/run_python.sh
+++ b/tools/run_tests/helper_scripts/run_python.sh
@@ -31,7 +31,7 @@
 set -ex
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 PYTHON=`realpath -s "${1:-py27/bin/python}"`
 
diff --git a/tools/run_tests/run_ruby.sh b/tools/run_tests/helper_scripts/run_ruby.sh
similarity index 98%
rename from tools/run_tests/run_ruby.sh
rename to tools/run_tests/helper_scripts/run_ruby.sh
index 73a84ac..ab153b7 100755
--- a/tools/run_tests/run_ruby.sh
+++ b/tools/run_tests/helper_scripts/run_ruby.sh
@@ -31,6 +31,6 @@
 set -ex
 
 # change to grpc repo root
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 
 rake
diff --git a/tools/run_tests/run_tests_in_workspace.sh b/tools/run_tests/helper_scripts/run_tests_in_workspace.sh
similarity index 98%
rename from tools/run_tests/run_tests_in_workspace.sh
rename to tools/run_tests/helper_scripts/run_tests_in_workspace.sh
index 9c6c5b7..002c8d6 100755
--- a/tools/run_tests/run_tests_in_workspace.sh
+++ b/tools/run_tests/helper_scripts/run_tests_in_workspace.sh
@@ -34,7 +34,7 @@
 # newly created workspace)
 set -ex
 
-cd $(dirname $0)/../..
+cd $(dirname $0)/../../..
 export repo_root=$(pwd)
 
 rm -rf "${WORKSPACE_NAME}"
diff --git a/tools/run_tests/interop_html_report.template b/tools/run_tests/interop/interop_html_report.template
similarity index 100%
rename from tools/run_tests/interop_html_report.template
rename to tools/run_tests/interop/interop_html_report.template
diff --git a/tools/run_tests/prepare_travis.sh b/tools/run_tests/prepare_travis.sh
deleted file mode 100755
index 1054653..0000000
--- a/tools/run_tests/prepare_travis.sh
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/bin/bash
-# Copyright 2015, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-cd `dirname $0`/../..
-grpc_dir=`pwd`
-
-distrib=`md5sum /etc/issue | cut -f1 -d\ `
-echo "Configuring for distribution $distrib"
-git submodule | while read sha path extra ; do
-  cd /tmp
-  name=`basename $path`
-  file=$name-$sha-$CONFIG-prebuilt-$distrib.tar.gz
-  echo -n "Looking for $file ..."
-  url=http://storage.googleapis.com/grpc-prebuilt-packages/$file
-  wget -q $url && (
-    echo " Found."
-    tar xfz $file
-  ) || echo " Not found."
-done
-
-mkdir -p bins/$CONFIG/protobuf
-mkdir -p libs/$CONFIG/protobuf
-mkdir -p libs/$CONFIG/openssl
-
-function cpt {
-  cp /tmp/prebuilt/$1 $2/$CONFIG/$3
-  touch $2/$CONFIG/$3/`basename $1`
-}
-
-if [ -e /tmp/prebuilt/bin/protoc ] ; then
-  touch third_party/protobuf/configure
-  cpt bin/protoc bins protobuf
-  cpt lib/libprotoc.a libs protobuf
-  cpt lib/libprotobuf.a libs protobuf
-fi
-
-if [ -e /tmp/prebuilt/lib/libssl.a ] ; then
-  cpt lib/libcrypto.a libs openssl
-  cpt lib/libssl.a libs openssl
-fi
diff --git a/tools/run_tests/run_ruby.sh b/tools/run_tests/python_utils/__init__.py
old mode 100755
new mode 100644
similarity index 92%
copy from tools/run_tests/run_ruby.sh
copy to tools/run_tests/python_utils/__init__.py
index 73a84ac..100a624
--- a/tools/run_tests/run_ruby.sh
+++ b/tools/run_tests/python_utils/__init__.py
@@ -1,5 +1,4 @@
-#!/bin/bash
-# Copyright 2015, Google Inc.
+# Copyright 2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,10 +26,3 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-set -ex
-
-# change to grpc repo root
-cd $(dirname $0)/../..
-
-rake
diff --git a/tools/run_tests/antagonist.py b/tools/run_tests/python_utils/antagonist.py
similarity index 100%
rename from tools/run_tests/antagonist.py
rename to tools/run_tests/python_utils/antagonist.py
diff --git a/tools/run_tests/dockerjob.py b/tools/run_tests/python_utils/dockerjob.py
similarity index 99%
rename from tools/run_tests/dockerjob.py
rename to tools/run_tests/python_utils/dockerjob.py
index 4a7e61b..0869c5c 100755
--- a/tools/run_tests/dockerjob.py
+++ b/tools/run_tests/python_utils/dockerjob.py
@@ -31,13 +31,14 @@
 
 from __future__ import print_function
 
-import jobset
 import tempfile
 import time
 import uuid
 import os
 import subprocess
 
+import jobset
+
 _DEVNULL = open(os.devnull, 'w')
 
 
diff --git a/tools/run_tests/filter_pull_request_tests.py b/tools/run_tests/python_utils/filter_pull_request_tests.py
similarity index 100%
rename from tools/run_tests/filter_pull_request_tests.py
rename to tools/run_tests/python_utils/filter_pull_request_tests.py
diff --git a/tools/run_tests/jobset.py b/tools/run_tests/python_utils/jobset.py
similarity index 100%
rename from tools/run_tests/jobset.py
rename to tools/run_tests/python_utils/jobset.py
diff --git a/tools/run_tests/port_server.py b/tools/run_tests/python_utils/port_server.py
similarity index 100%
rename from tools/run_tests/port_server.py
rename to tools/run_tests/python_utils/port_server.py
diff --git a/tools/run_tests/report_utils.py b/tools/run_tests/python_utils/report_utils.py
similarity index 100%
rename from tools/run_tests/report_utils.py
rename to tools/run_tests/python_utils/report_utils.py
diff --git a/tools/run_tests/watch_dirs.py b/tools/run_tests/python_utils/watch_dirs.py
similarity index 100%
rename from tools/run_tests/watch_dirs.py
rename to tools/run_tests/python_utils/watch_dirs.py
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 83cfc42..c14f18a 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -34,20 +34,21 @@
 
 import argparse
 import atexit
-import dockerjob
 import itertools
-import jobset
 import json
 import multiprocessing
 import os
 import re
-import report_utils
 import subprocess
 import sys
 import tempfile
 import time
 import uuid
 
+import python_utils.dockerjob as dockerjob
+import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
+
 # Docker doesn't clean up after itself, so we do it on exit.
 atexit.register(lambda: subprocess.call(['stty', 'echo']))
 
diff --git a/tools/run_tests/run_performance_tests.py b/tools/run_tests/run_performance_tests.py
index 69ccff8..b7b742d 100755
--- a/tools/run_tests/run_performance_tests.py
+++ b/tools/run_tests/run_performance_tests.py
@@ -35,21 +35,21 @@
 import argparse
 import collections
 import itertools
-import jobset
 import json
 import multiprocessing
 import os
-import performance.scenario_config as scenario_config
 import pipes
 import re
-import report_utils
 import subprocess
 import sys
 import tempfile
 import time
 import traceback
 import uuid
-import report_utils
+
+import performance.scenario_config as scenario_config
+import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
 
 
 _ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
diff --git a/tools/run_tests/run_stress_tests.py b/tools/run_tests/run_stress_tests.py
index de4a228..a94a615 100755
--- a/tools/run_tests/run_stress_tests.py
+++ b/tools/run_tests/run_stress_tests.py
@@ -33,9 +33,7 @@
 
 import argparse
 import atexit
-import dockerjob
 import itertools
-import jobset
 import json
 import multiprocessing
 import os
@@ -46,6 +44,9 @@
 import time
 import uuid
 
+import python_utils.dockerjob as dockerjob
+import python_utils.jobset as jobset
+
 # Docker doesn't clean up after itself, so we do it on exit.
 atexit.register(lambda: subprocess.call(['stty', 'echo']))
 
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index fe56f4a..1008c6b 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -54,9 +54,9 @@
 from six.moves import urllib
 import uuid
 
-import jobset
-import report_utils
-import watch_dirs
+import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
+import python_utils.watch_dirs as watch_dirs
 
 
 _ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
@@ -116,7 +116,7 @@
 def get_c_tests(travis, test_lang) :
   out = []
   platforms_str = 'ci_platforms' if travis else 'platforms'
-  with open('tools/run_tests/tests.json') as f:
+  with open('tools/run_tests/generated/tests.json') as f:
     js = json.load(f)
     return [tgt
             for tgt in js
@@ -300,7 +300,7 @@
 
   def pre_build_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\pre_build_c.bat']]
+      return [['tools\\run_tests\\helper_scripts\\pre_build_c.bat']]
     else:
       return []
 
@@ -311,7 +311,7 @@
     if self.platform == 'windows':
       return []
     else:
-      return [['tools/run_tests/post_tests_c.sh']]
+      return [['tools/run_tests/helper_scripts/post_tests_c.sh']]
 
   def makefile_name(self):
     return 'Makefile'
@@ -382,16 +382,16 @@
 
   def test_specs(self):
     if self.platform == 'windows':
-      return [self.config.job_spec(['tools\\run_tests\\run_node.bat'])]
+      return [self.config.job_spec(['tools\\run_tests\\helper_scripts\\run_node.bat'])]
     else:
-      return [self.config.job_spec(['tools/run_tests/run_node.sh', self.node_version],
+      return [self.config.job_spec(['tools/run_tests/helper_scripts/run_node.sh', self.node_version],
                                    environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
 
   def pre_build_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\pre_build_node.bat']]
+      return [['tools\\run_tests\\helper_scripts\\pre_build_node.bat']]
     else:
-      return [['tools/run_tests/pre_build_node.sh', self.node_version]]
+      return [['tools/run_tests/helper_scripts/pre_build_node.sh', self.node_version]]
 
   def make_targets(self):
     return []
@@ -401,9 +401,9 @@
 
   def build_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\build_node.bat']]
+      return [['tools\\run_tests\\helper_scripts\\build_node.bat']]
     else:
-      return [['tools/run_tests/build_node.sh', self.node_version]]
+      return [['tools/run_tests/helper_scripts/build_node.sh', self.node_version]]
 
   def post_tests_steps(self):
     return []
@@ -439,10 +439,10 @@
     return []
 
   def build_steps(self):
-    return [['tools/run_tests/build_php.sh']]
+    return [['tools/run_tests/helper_scripts/build_php.sh']]
 
   def post_tests_steps(self):
-    return [['tools/run_tests/post_tests_php.sh']]
+    return [['tools/run_tests/helper_scripts/post_tests_php.sh']]
 
   def makefile_name(self):
     return 'Makefile'
@@ -475,10 +475,10 @@
     return []
 
   def build_steps(self):
-    return [['tools/run_tests/build_php.sh']]
+    return [['tools/run_tests/helper_scripts/build_php.sh']]
 
   def post_tests_steps(self):
-    return [['tools/run_tests/post_tests_php.sh']]
+    return [['tools/run_tests/helper_scripts/post_tests_php.sh']]
 
   def makefile_name(self):
     return 'Makefile'
@@ -547,18 +547,18 @@
 
     if os.name == 'nt':
       shell = ['bash']
-      builder = [os.path.abspath('tools/run_tests/build_python_msys2.sh')]
+      builder = [os.path.abspath('tools/run_tests/helper_scripts/build_python_msys2.sh')]
       builder_prefix_arguments = ['MINGW{}'.format(bits)]
       venv_relative_python = ['Scripts/python.exe']
       toolchain = ['mingw32']
     else:
       shell = []
-      builder = [os.path.abspath('tools/run_tests/build_python.sh')]
+      builder = [os.path.abspath('tools/run_tests/helper_scripts/build_python.sh')]
       builder_prefix_arguments = []
       venv_relative_python = ['bin/python']
       toolchain = ['unix']
 
-    runner = [os.path.abspath('tools/run_tests/run_python.sh')]
+    runner = [os.path.abspath('tools/run_tests/helper_scripts/run_python.sh')]
     config_vars = _PythonConfigVars(shell, builder, builder_prefix_arguments,
                               venv_relative_python, toolchain, runner)
     python27_config = _python_config_generator(name='py27', major='2',
@@ -610,12 +610,12 @@
     _check_compiler(self.args.compiler, ['default'])
 
   def test_specs(self):
-    return [self.config.job_spec(['tools/run_tests/run_ruby.sh'],
+    return [self.config.job_spec(['tools/run_tests/helper_scripts/run_ruby.sh'],
                                  timeout_seconds=10*60,
                                  environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
 
   def pre_build_steps(self):
-    return [['tools/run_tests/pre_build_ruby.sh']]
+    return [['tools/run_tests/helper_scripts/pre_build_ruby.sh']]
 
   def make_targets(self):
     return []
@@ -624,10 +624,10 @@
     return []
 
   def build_steps(self):
-    return [['tools/run_tests/build_ruby.sh']]
+    return [['tools/run_tests/helper_scripts/build_ruby.sh']]
 
   def post_tests_steps(self):
-    return [['tools/run_tests/post_tests_ruby.sh']]
+    return [['tools/run_tests/helper_scripts/post_tests_ruby.sh']]
 
   def makefile_name(self):
     return 'Makefile'
@@ -725,9 +725,9 @@
 
   def pre_build_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\pre_build_csharp.bat']]
+      return [['tools\\run_tests\\helper_scripts\\pre_build_csharp.bat']]
     else:
-      return [['tools/run_tests/pre_build_csharp.sh']]
+      return [['tools/run_tests/helper_scripts/pre_build_csharp.sh']]
 
   def make_targets(self):
     return ['grpc_csharp_ext']
@@ -738,22 +738,22 @@
   def build_steps(self):
     if self.args.compiler == 'coreclr':
       if self.platform == 'windows':
-        return [['tools\\run_tests\\build_csharp_coreclr.bat']]
+        return [['tools\\run_tests\\helper_scripts\\build_csharp_coreclr.bat']]
       else:
-        return [['tools/run_tests/build_csharp_coreclr.sh']]
+        return [['tools/run_tests/helper_scripts/build_csharp_coreclr.sh']]
     else:
       if self.platform == 'windows':
         return [[_windows_build_bat(self.args.compiler),
                  'src/csharp/Grpc.sln',
                  '/p:Configuration=%s' % _MSBUILD_CONFIG[self.config.build_config]]]
       else:
-        return [['tools/run_tests/build_csharp.sh']]
+        return [['tools/run_tests/helper_scripts/build_csharp.sh']]
 
   def post_tests_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\post_tests_csharp.bat']]
+      return [['tools\\run_tests\\helper_scripts\\post_tests_csharp.bat']]
     else:
-      return [['tools/run_tests/post_tests_csharp.sh']]
+      return [['tools/run_tests/helper_scripts/post_tests_csharp.sh']]
 
   def makefile_name(self):
     return 'Makefile'
@@ -872,9 +872,9 @@
 
   def pre_build_steps(self):
     if self.platform == 'windows':
-      return [['tools\\run_tests\\pre_build_node.bat']]
+      return [['tools\\run_tests\\helper_scripts\\pre_build_node.bat']]
     else:
-      return [['tools/run_tests/pre_build_node.sh', self.node_version]]
+      return [['tools/run_tests/helper_scripts/pre_build_node.sh', self.node_version]]
 
   def make_targets(self):
     return []
@@ -898,7 +898,7 @@
     return 'node_express'
 
 # different configurations we can run under
-with open('tools/run_tests/configs.json') as f:
+with open('tools/run_tests/generated/configs.json') as f:
   _CONFIGS = dict((cfg['config'], Config(**cfg)) for cfg in ast.literal_eval(f.read()))
 
 
@@ -1299,7 +1299,7 @@
     running = False
   if running:
     current_version = int(subprocess.check_output(
-        [sys.executable, os.path.abspath('tools/run_tests/port_server.py'),
+        [sys.executable, os.path.abspath('tools/run_tests/python_utils/port_server.py'),
          'dump_version']))
     print('my port server is version %d' % current_version)
     running = (version >= current_version)
@@ -1311,7 +1311,7 @@
     fd, logfile = tempfile.mkstemp()
     os.close(fd)
     print('starting port_server, with log file %s' % logfile)
-    args = [sys.executable, os.path.abspath('tools/run_tests/port_server.py'),
+    args = [sys.executable, os.path.abspath('tools/run_tests/python_utils/port_server.py'),
             '-p', '%d' % port_server_port, '-l', logfile]
     env = dict(os.environ)
     env['BUILD_ID'] = 'pleaseDontKillMeJenkins'
@@ -1417,7 +1417,7 @@
     return []
 
   # start antagonists
-  antagonists = [subprocess.Popen(['tools/run_tests/antagonist.py'])
+  antagonists = [subprocess.Popen(['tools/run_tests/python_utils/antagonist.py'])
                  for _ in range(0, args.antagonists)]
   port_server_port = 32766
   _start_port_server(port_server_port)
diff --git a/tools/run_tests/run_tests_matrix.py b/tools/run_tests/run_tests_matrix.py
index df48099..6e83180 100755
--- a/tools/run_tests/run_tests_matrix.py
+++ b/tools/run_tests/run_tests_matrix.py
@@ -31,12 +31,13 @@
 """Run test matrix."""
 
 import argparse
-import jobset
 import multiprocessing
 import os
-import report_utils
 import sys
-from filter_pull_request_tests import filter_tests
+
+import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
+from python_utils.filter_pull_request_tests import filter_tests
 
 _ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
 os.chdir(_ROOT)
@@ -69,7 +70,7 @@
     workspace_name = 'workspace_%s' % name
   env = {'WORKSPACE_NAME': workspace_name}
   test_job = jobset.JobSpec(
-          cmdline=['tools/run_tests/run_tests_in_workspace.sh',
+          cmdline=['tools/run_tests/helper_scripts/run_tests_in_workspace.sh',
                    '-t',
                    '-j', str(inner_jobs),
                    '-x', '../report_%s.xml' % name,
diff --git a/tools/run_tests/sanity/check_sources_and_headers.py b/tools/run_tests/sanity/check_sources_and_headers.py
index b733ba1..a86db02 100755
--- a/tools/run_tests/sanity/check_sources_and_headers.py
+++ b/tools/run_tests/sanity/check_sources_and_headers.py
@@ -34,7 +34,7 @@
 import sys
 
 root = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..'))
-with open(os.path.join(root, 'tools', 'run_tests', 'sources_and_headers.json')) as f:
+with open(os.path.join(root, 'tools', 'run_tests', 'generated', 'sources_and_headers.json')) as f:
   js = json.loads(f.read())
 
 re_inc1 = re.compile(r'^#\s*include\s*"([^"]*)"')
diff --git a/tools/run_tests/sanity/check_test_filtering.py b/tools/run_tests/sanity/check_test_filtering.py
index b522cde..290a6e2 100755
--- a/tools/run_tests/sanity/check_test_filtering.py
+++ b/tools/run_tests/sanity/check_test_filtering.py
@@ -38,7 +38,7 @@
 # hack import paths to pick up extra code
 sys.path.insert(0, os.path.abspath('tools/run_tests/'))
 from run_tests_matrix import _create_test_jobs, _create_portability_test_jobs
-import filter_pull_request_tests
+import python_utils.filter_pull_request_tests as filter_pull_request_tests
 
 _LIST_OF_LANGUAGE_LABELS = ['c', 'c++', 'csharp', 'node', 'objc', 'php', 'php7', 'python', 'ruby']
 _LIST_OF_PLATFORM_LABELS = ['linux', 'macos', 'windows']
diff --git a/tools/run_tests/task_runner.py b/tools/run_tests/task_runner.py
index 2e3fa44..fdc4668 100755
--- a/tools/run_tests/task_runner.py
+++ b/tools/run_tests/task_runner.py
@@ -33,14 +33,13 @@
 from __future__ import print_function
 
 import argparse
-import atexit
-import jobset
 import multiprocessing
 import sys
 
-import artifact_targets
-import distribtest_targets
-import package_targets
+import artifacts.artifact_targets as artifact_targets
+import artifacts.distribtest_targets as distribtest_targets
+import artifacts.package_targets as package_targets
+import python_utils.jobset as jobset
 
 _TARGETS = []
 _TARGETS += artifact_targets.targets()