Reduce log verbosity of stress_test client by default. Correct a typo
diff --git a/test/cpp/interop/stress_test.cc b/test/cpp/interop/stress_test.cc
index 162f7b3..1b3fbc0 100644
--- a/test/cpp/interop/stress_test.cc
+++ b/test/cpp/interop/stress_test.cc
@@ -98,11 +98,11 @@
" 'large_unary', 10% of the time and 'empty_stream' the remaining"
" 70% of the time");
-DEFINE_int32(log_level, GPR_LOG_SEVERITY_DEBUG,
+DEFINE_int32(log_level, GPR_LOG_SEVERITY_INFO,
"Severity level of messages that should be logged. Any messages "
"greater than or equal to the level set here will be logged. "
"The choices are: 0 (GPR_LOG_SEVERITY_DEBUG), 1 "
- "(GPR_LOG_SEVERITY_INFO) and 2 (GPR_LOG_SEVERITY_ERROR.");
+ "(GPR_LOG_SEVERITY_INFO) and 2 (GPR_LOG_SEVERITY_ERROR)");
using grpc::testing::kTestCaseList;
using grpc::testing::MetricsService;
diff --git a/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md b/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md
index e9755ff..0457027 100644
--- a/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md
+++ b/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md
@@ -6,14 +6,14 @@
--------------
**1.** A stress test client should be able to repeatedly execute one or more of the existing 'interop test cases'. It may just be a wrapper around the existing interop test client. The exact command line arguments the client should support are listed in _Table 1_ below.
-**2.** The stress test client must implement a metrics server defined by _[metrics.proto](https://github.com/grpc/grpc/blob/master/src/proto/grpc/testing/metrics.proto)_ and must expose _qps_ as a long-valued Gauge. The client can track the overall _qps_ in one Gauge or in multiple Gagues (for example: One per Channel or Stub).
+**2.** The stress test client must implement a metrics server defined by _[metrics.proto](https://github.com/grpc/grpc/blob/master/src/proto/grpc/testing/metrics.proto)_ and must expose _qps_ as a long-valued Gauge. The client can track the overall _qps_ in one Gauge or in multiple Gauges (for example: One per Channel or Stub).
The framework periodically queries the _qps_ by calling the `GetAllGauges()` method (the framework assumes that all the returned Gauges are _qps_ Gauges) and uses this to determine if the stress test client is running or crashed or stalled.
> *Note:* In this context, the term _**qps**_ means _interop test cases per second_ (not _messages per second_ or _rpc calls per second_)
**Table 1:** Command line arguments that should be supported by the stress test client.
->_**Note** The current C++ [stress client](https://github.com/grpc/grpc/blob/master/test/cpp/interop/stress_test.cc) supports more flags than those listed here but those flags will soon be deprecated_
+>_**Note** The current C++ [stress client](https://github.com/grpc/grpc/blob/master/test/cpp/interop/stress_test.cc) supports more flags than those listed here but those flags will soon be deprecated._
Parameter | Description
----------------------|---------------------------------