Merge "Create a reusable thread_state table"
diff --git a/protos/perfetto/metrics/android/lmk_reason_metric.proto b/protos/perfetto/metrics/android/lmk_reason_metric.proto
index 6b84b0d..4e046b0 100644
--- a/protos/perfetto/metrics/android/lmk_reason_metric.proto
+++ b/protos/perfetto/metrics/android/lmk_reason_metric.proto
@@ -24,6 +24,9 @@
   message Lmk {
     // OOM score adj of the LMK'ed process.
     optional int32 oom_score_adj = 1;
+
+    // Total size of the system ION heap in bytes.
+    optional int64 system_ion_heap_size = 2;
   }
 
   repeated Lmk lmks = 1;
diff --git a/protos/perfetto/metrics/android/process_metadata.proto b/protos/perfetto/metrics/android/process_metadata.proto
index e45e257..65fa82b 100644
--- a/protos/perfetto/metrics/android/process_metadata.proto
+++ b/protos/perfetto/metrics/android/process_metadata.proto
@@ -19,10 +19,31 @@
 package perfetto.protos;
 
 message AndroidProcessMetadata {
+  // Process name. Usually, cmdline or <package_name>(:<custom_name>)?.
   optional string name = 1;
+
+  // User id under which this process runs.
   optional int64 uid = 2;
-  optional string package_name = 3;
-  optional int64 apk_version_code = 4;
-  optional bool debuggable = 5;
-  optional bool shared_uid = 6;
+
+  optional string package_name = 3 [deprecated = true];
+  optional int64 apk_version_code = 4 [deprecated = true];
+  optional bool debuggable = 5 [deprecated = true];
+  optional bool shared_uid = 6 [deprecated = true];
+
+  // Package metadata from Android package list.
+  message Package {
+    optional string package_name = 1;
+    optional int64 apk_version_code = 2;
+    optional bool debuggable = 3;
+  }
+
+  // Best match package that if this process belongs to an APK.
+  // The match is determined based on the uid and name.
+  optional Package package = 7;
+
+  // All packages using this uid.
+  //
+  // Shared uid documentation:
+  // https://developer.android.com/guide/topics/manifest/manifest-element#uid
+  repeated Package packages_for_uid = 8;
 }
diff --git a/src/perfetto_cmd/perfetto_cmd.cc b/src/perfetto_cmd/perfetto_cmd.cc
index da3850b..80dc7ee 100644
--- a/src/perfetto_cmd/perfetto_cmd.cc
+++ b/src/perfetto_cmd/perfetto_cmd.cc
@@ -131,7 +131,9 @@
                              background
   --config         -c      : /path/to/trace/config/file or - for stdin
   --out            -o      : /path/to/out/trace/file or - for stdout
-  --dropbox           TAG  : Upload trace into DropBox using tag TAG
+  --upload                 : Upload field trace (Android only)
+  --dropbox        TAG     : DEPRECATED: Use --upload instead
+                             TAG should always be set to 'perfetto'
   --no-guardrails          : Ignore guardrails triggered when using --dropbox
                              (for testing).
   --txt                    : Parse config as pbtxt. Not for production use.
@@ -180,6 +182,7 @@
     OPT_RESET_GUARDRAILS,
     OPT_PBTXT_CONFIG,
     OPT_DROPBOX,
+    OPT_UPLOAD,
     OPT_ATRACE_APP,
     OPT_IGNORE_GUARDRAILS,
     OPT_DETACH,
@@ -199,6 +202,7 @@
       {"size", required_argument, nullptr, 's'},
       {"no-guardrails", no_argument, nullptr, OPT_IGNORE_GUARDRAILS},
       {"txt", no_argument, nullptr, OPT_PBTXT_CONFIG},
+      {"upload", no_argument, nullptr, OPT_UPLOAD},
       {"dropbox", required_argument, nullptr, OPT_DROPBOX},
       {"alert-id", required_argument, nullptr, OPT_ALERT_ID},
       {"config-id", required_argument, nullptr, OPT_CONFIG_ID},
@@ -287,13 +291,23 @@
       continue;
     }
 
+    if (option == OPT_UPLOAD) {
+#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
+      dropbox_tag_ = "perfetto";
+      continue;
+#else
+      PERFETTO_ELOG("--upload is only supported on Android");
+      return 1;
+#endif
+    }
+
     if (option == OPT_DROPBOX) {
 #if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
       PERFETTO_CHECK(optarg);
       dropbox_tag_ = optarg;
       continue;
 #else
-      PERFETTO_ELOG("--dropbox is supported only on Android");
+      PERFETTO_ELOG("--dropbox is only supported on Android");
       return 1;
 #endif
     }
diff --git a/src/trace_processor/importers/proto/proto_trace_parser.cc b/src/trace_processor/importers/proto/proto_trace_parser.cc
index f438543..26a5161 100644
--- a/src/trace_processor/importers/proto/proto_trace_parser.cc
+++ b/src/trace_processor/importers/proto/proto_trace_parser.cc
@@ -526,7 +526,7 @@
       } else if (metadata.has_json_value()) {
         value = Variadic::Json(storage->InternString(metadata.json_value()));
       } else {
-        PERFETTO_FATAL("Empty ChromeMetadata message");
+        context_->storage->IncrementStats(stats::empty_chrome_metadata);
       }
       args.AddArg(row_id, name_id, name_id, value);
     }
diff --git a/src/trace_processor/metrics/android/android_ion.sql b/src/trace_processor/metrics/android/android_ion.sql
index 714cd71..9b30a3c 100644
--- a/src/trace_processor/metrics/android/android_ion.sql
+++ b/src/trace_processor/metrics/android/android_ion.sql
@@ -14,7 +14,7 @@
 -- limitations under the License.
 --
 
-CREATE VIEW ion_timeline AS
+CREATE VIEW IF NOT EXISTS ion_timeline AS
 SELECT
   ts,
   LEAD(ts, 1, (SELECT end_ts FROM trace_bounds))
@@ -25,7 +25,7 @@
   ON counter.track_id = counter_track.id
 WHERE name LIKE 'mem.ion.%';
 
-CREATE VIEW ion_buffers AS
+CREATE VIEW IF NOT EXISTS ion_buffers AS
 SELECT
   heap_name,
   SUM(value * dur) / SUM(dur) AS avg_size,
@@ -34,7 +34,7 @@
 FROM ion_timeline
 GROUP BY 1;
 
-CREATE VIEW android_ion_output AS
+CREATE VIEW IF NOT EXISTS android_ion_output AS
 SELECT AndroidIonMetric(
   'buffer', RepeatedField(
     AndroidIonMetric_Buffer(
diff --git a/src/trace_processor/metrics/android/android_lmk_reason.sql b/src/trace_processor/metrics/android/android_lmk_reason.sql
index 8a91000..7d96fdc 100644
--- a/src/trace_processor/metrics/android/android_lmk_reason.sql
+++ b/src/trace_processor/metrics/android/android_lmk_reason.sql
@@ -14,6 +14,7 @@
 -- limitations under the License.
 --
 
+SELECT RUN_METRIC('android/android_ion.sql');
 SELECT RUN_METRIC('android/android_lmk.sql');
 
 CREATE VIEW IF NOT EXISTS android_lmk_reason_output AS
@@ -23,17 +24,31 @@
   lmk_events.ts,
   oom_score_val
   FROM lmk_events
-  LEFT JOIN oom_score_span USING (upid)
-  WHERE oom_score_span.ts <= lmk_events.ts
-  AND (oom_score_span.ts + oom_score_span.dur) > lmk_events.ts
+  JOIN oom_score_span USING (upid)
+  WHERE lmk_events.ts
+    BETWEEN oom_score_span.ts
+    AND oom_score_span.ts + MAX(oom_score_span.dur - 1, 0)
+),
+lmk_ion_sizes AS (
+  SELECT
+  lmk_events.ts,
+  CAST(ion_timeline.value as int) system_ion_heap_size
+  FROM lmk_events
+  JOIN ion_timeline
+  WHERE ion_timeline.heap_name = 'system'
+  AND lmk_events.ts
+    BETWEEN ion_timeline.ts
+    AND ion_timeline.ts + MAX(ion_timeline.dur - 1, 0)
 )
 SELECT AndroidLmkReasonMetric(
   'lmks', (
     SELECT RepeatedField(AndroidLmkReasonMetric_Lmk(
-      'oom_score_adj', oom_score_val
+      'oom_score_adj', oom_score_val,
+      'system_ion_heap_size', system_ion_heap_size
     ))
     FROM lmk_events
-    JOIN lmk_ooms USING (ts)
+    LEFT JOIN lmk_ooms USING (ts)
+    LEFT JOIN lmk_ion_sizes USING (ts)
     ORDER BY ts
   )
 );
diff --git a/src/trace_processor/metrics/android/process_metadata.sql b/src/trace_processor/metrics/android/process_metadata.sql
index 3ab7fea..c3cff49 100644
--- a/src/trace_processor/metrics/android/process_metadata.sql
+++ b/src/trace_processor/metrics/android/process_metadata.sql
@@ -50,6 +50,18 @@
 DROP VIEW IF EXISTS process_metadata;
 
 CREATE VIEW process_metadata AS
+WITH upid_packages AS (
+  SELECT
+  upid,
+  RepeatedField(AndroidProcessMetadata_Package(
+    'package_name', package_list.package_name,
+    'apk_version_code', package_list.version_code,
+    'debuggable', package_list.debuggable
+  )) packages_for_uid
+  FROM process
+  LEFT JOIN package_list USING (uid)
+  GROUP BY upid
+)
 SELECT
   upid,
   AndroidProcessMetadata(
@@ -58,6 +70,13 @@
     'shared_uid', shared_uid,
     'package_name', package_name,
     'apk_version_code', version_code,
-    'debuggable', debuggable
+    'debuggable', debuggable,
+    'package', AndroidProcessMetadata_Package(
+      'package_name', package_name,
+      'apk_version_code', version_code,
+      'debuggable', debuggable
+    ),
+    'packages_for_uid', packages_for_uid
   ) AS metadata
-FROM process_metadata_table;
+FROM process_metadata_table
+LEFT JOIN upid_packages USING (upid);
diff --git a/src/trace_processor/metrics/metrics.descriptor.h b/src/trace_processor/metrics/metrics.descriptor.h
index 3022438..7aad96f 100644
--- a/src/trace_processor/metrics/metrics.descriptor.h
+++ b/src/trace_processor/metrics/metrics.descriptor.h
@@ -19,7 +19,7 @@
 
 namespace perfetto {
 
-constexpr std::array<uint8_t, 10631> kMetricsDescriptor{
+constexpr std::array<uint8_t, 10982> kMetricsDescriptor{
     {0x0a, 0x98, 0x03, 0x0a, 0x31, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2f,
      0x70, 0x65, 0x72, 0x66, 0x65, 0x74, 0x74, 0x6f, 0x2f, 0x6d, 0x65, 0x74,
      0x72, 0x69, 0x63, 0x73, 0x2f, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64,
@@ -311,601 +311,631 @@
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+     0x6f, 0x75, 0x6e, 0x74, 0x42, 0x02, 0x48, 0x03, 0x0a, 0x86, 0x02, 0x0a,
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+     0x73, 0x74, 0x52, 0x12, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x50,
+     0x61, 0x63, 0x6b, 0x61, 0x67, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x42,
+     0x0a, 0x0b, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x5f, 0x69, 0x6f,
+     0x6e, 0x18, 0x09, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x21, 0x2e, 0x70, 0x65,
+     0x72, 0x66, 0x65, 0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+     0x73, 0x2e, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x49, 0x6f, 0x6e,
+     0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x52, 0x0a, 0x61, 0x6e, 0x64, 0x72,
+     0x6f, 0x69, 0x64, 0x49, 0x6f, 0x6e, 0x12, 0x42, 0x0a, 0x0b, 0x61, 0x6e,
+     0x64, 0x72, 0x6f, 0x69, 0x64, 0x5f, 0x6c, 0x6d, 0x6b, 0x18, 0x08, 0x20,
+     0x01, 0x28, 0x0b, 0x32, 0x21, 0x2e, 0x70, 0x65, 0x72, 0x66, 0x65, 0x74,
+     0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x41, 0x6e,
+     0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c, 0x6d, 0x6b, 0x4d, 0x65, 0x74, 0x72,
+     0x69, 0x63, 0x52, 0x0a, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c,
+     0x6d, 0x6b, 0x12, 0x4d, 0x0a, 0x10, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69,
+     0x64, 0x5f, 0x70, 0x6f, 0x77, 0x72, 0x61, 0x69, 0x6c, 0x73, 0x18, 0x07,
+     0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x70, 0x65, 0x72, 0x66, 0x65,
      0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x41,
-     0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c, 0x6d, 0x6b, 0x52, 0x65, 0x61,
-     0x73, 0x6f, 0x6e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x52, 0x10, 0x61,
-     0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c, 0x6d, 0x6b, 0x52, 0x65, 0x61,
-     0x73, 0x6f, 0x6e, 0x2a, 0x06, 0x08, 0xc2, 0x03, 0x10, 0xf4, 0x03, 0x2a,
-     0x06, 0x08, 0xf4, 0x03, 0x10, 0xe9, 0x07, 0x4a, 0x04, 0x08, 0x04, 0x10,
-     0x05, 0x4a, 0x04, 0x08, 0x0a, 0x10, 0x0b, 0x4a, 0x04, 0x08, 0x0d, 0x10,
-     0x0e, 0x4a, 0x04, 0x08, 0x0e, 0x10, 0x0f, 0x42, 0x02, 0x48, 0x03}};
+     0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x50, 0x6f, 0x77, 0x65, 0x72, 0x52,
+     0x61, 0x69, 0x6c, 0x73, 0x52, 0x0f, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69,
+     0x64, 0x50, 0x6f, 0x77, 0x72, 0x61, 0x69, 0x6c, 0x73, 0x12, 0x4e, 0x0a,
+     0x0f, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x5f, 0x73, 0x74, 0x61,
+     0x72, 0x74, 0x75, 0x70, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x25,
+     0x2e, 0x70, 0x65, 0x72, 0x66, 0x65, 0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72,
+     0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64,
+     0x53, 0x74, 0x61, 0x72, 0x74, 0x75, 0x70, 0x4d, 0x65, 0x74, 0x72, 0x69,
+     0x63, 0x52, 0x0e, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x53, 0x74,
+     0x61, 0x72, 0x74, 0x75, 0x70, 0x12, 0x5b, 0x0a, 0x16, 0x68, 0x65, 0x61,
+     0x70, 0x5f, 0x70, 0x72, 0x6f, 0x66, 0x69, 0x6c, 0x65, 0x5f, 0x63, 0x61,
+     0x6c, 0x6c, 0x73, 0x69, 0x74, 0x65, 0x73, 0x18, 0x10, 0x20, 0x01, 0x28,
+     0x0b, 0x32, 0x25, 0x2e, 0x70, 0x65, 0x72, 0x66, 0x65, 0x74, 0x74, 0x6f,
+     0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x48, 0x65, 0x61, 0x70,
+     0x50, 0x72, 0x6f, 0x66, 0x69, 0x6c, 0x65, 0x43, 0x61, 0x6c, 0x6c, 0x73,
+     0x69, 0x74, 0x65, 0x73, 0x52, 0x14, 0x68, 0x65, 0x61, 0x70, 0x50, 0x72,
+     0x6f, 0x66, 0x69, 0x6c, 0x65, 0x43, 0x61, 0x6c, 0x6c, 0x73, 0x69, 0x74,
+     0x65, 0x73, 0x12, 0x45, 0x0a, 0x0e, 0x74, 0x72, 0x61, 0x63, 0x65, 0x5f,
+     0x6d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x18, 0x03, 0x20, 0x01,
+     0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x70, 0x65, 0x72, 0x66, 0x65, 0x74, 0x74,
+     0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x54, 0x72, 0x61,
+     0x63, 0x65, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x0d,
+     0x74, 0x72, 0x61, 0x63, 0x65, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74,
+     0x61, 0x12, 0x54, 0x0a, 0x13, 0x75, 0x6e, 0x73, 0x79, 0x6d, 0x62, 0x6f,
+     0x6c, 0x69, 0x7a, 0x65, 0x64, 0x5f, 0x66, 0x72, 0x61, 0x6d, 0x65, 0x73,
+     0x18, 0x0f, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x23, 0x2e, 0x70, 0x65, 0x72,
+     0x66, 0x65, 0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73,
+     0x2e, 0x55, 0x6e, 0x73, 0x79, 0x6d, 0x62, 0x6f, 0x6c, 0x69, 0x7a, 0x65,
+     0x64, 0x46, 0x72, 0x61, 0x6d, 0x65, 0x73, 0x52, 0x12, 0x75, 0x6e, 0x73,
+     0x79, 0x6d, 0x62, 0x6f, 0x6c, 0x69, 0x7a, 0x65, 0x64, 0x46, 0x72, 0x61,
+     0x6d, 0x65, 0x73, 0x12, 0x46, 0x0a, 0x0f, 0x6a, 0x61, 0x76, 0x61, 0x5f,
+     0x68, 0x65, 0x61, 0x70, 0x5f, 0x73, 0x74, 0x61, 0x74, 0x73, 0x18, 0x11,
+     0x20, 0x01, 0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x70, 0x65, 0x72, 0x66, 0x65,
+     0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2e, 0x4a,
+     0x61, 0x76, 0x61, 0x48, 0x65, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x73,
+     0x52, 0x0d, 0x6a, 0x61, 0x76, 0x61, 0x48, 0x65, 0x61, 0x70, 0x53, 0x74,
+     0x61, 0x74, 0x73, 0x12, 0x55, 0x0a, 0x12, 0x61, 0x6e, 0x64, 0x72, 0x6f,
+     0x69, 0x64, 0x5f, 0x6c, 0x6d, 0x6b, 0x5f, 0x72, 0x65, 0x61, 0x73, 0x6f,
+     0x6e, 0x18, 0x12, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x27, 0x2e, 0x70, 0x65,
+     0x72, 0x66, 0x65, 0x74, 0x74, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+     0x73, 0x2e, 0x41, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c, 0x6d, 0x6b,
+     0x52, 0x65, 0x61, 0x73, 0x6f, 0x6e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63,
+     0x52, 0x10, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x4c, 0x6d, 0x6b,
+     0x52, 0x65, 0x61, 0x73, 0x6f, 0x6e, 0x2a, 0x06, 0x08, 0xc2, 0x03, 0x10,
+     0xf4, 0x03, 0x2a, 0x06, 0x08, 0xf4, 0x03, 0x10, 0xe9, 0x07, 0x4a, 0x04,
+     0x08, 0x04, 0x10, 0x05, 0x4a, 0x04, 0x08, 0x0a, 0x10, 0x0b, 0x4a, 0x04,
+     0x08, 0x0d, 0x10, 0x0e, 0x4a, 0x04, 0x08, 0x0e, 0x10, 0x0f, 0x42, 0x02,
+     0x48, 0x03}};
 
 }  // namespace perfetto
 
diff --git a/src/trace_processor/span_join_operator_table.cc b/src/trace_processor/span_join_operator_table.cc
index a786ba7..4e05bfb 100644
--- a/src/trace_processor/span_join_operator_table.cc
+++ b/src/trace_processor/span_join_operator_table.cc
@@ -425,8 +425,15 @@
       auto t2_partition =
           t2_.IsPartitioned() ? t2_.CursorPartition() : t2_.partition();
 
+      // If either cusor has finished, be sure to not forward that one as it
+      // will have a pending full partition shadow slice which needs to be
+      // retained.
       Query* stepped;
-      if (t1_partition == t2_partition) {
+      if (t1_.CursorEof()) {
+        stepped = &t2_;
+      } else if (t2_.CursorEof()) {
+        stepped = &t1_;
+      } else if (t1_partition == t2_partition) {
         stepped = t1_.ts_end() <= t2_.ts_end() ? &t1_ : &t2_;
       } else {
         stepped = t1_partition <= t2_partition ? &t1_ : &t2_;
diff --git a/src/trace_processor/span_join_operator_table.h b/src/trace_processor/span_join_operator_table.h
index 1a1e9a1..ab8f0f1 100644
--- a/src/trace_processor/span_join_operator_table.h
+++ b/src/trace_processor/span_join_operator_table.h
@@ -187,6 +187,8 @@
       return sqlite3_column_int64(stmt_.get(), partition_idx);
     }
 
+    bool CursorEof() const { return cursor_eof_; }
+
    private:
     enum Mode {
       kRealSlice,
diff --git a/src/trace_processor/stats.h b/src/trace_processor/stats.h
index 583dfa2..97d968b 100644
--- a/src/trace_processor/stats.h
+++ b/src/trace_processor/stats.h
@@ -124,7 +124,8 @@
   F(misplaced_end_event,                      kSingle,  kDataLoss, kAnalysis), \
   F(sched_waking_out_of_order,                kSingle,  kError,    kAnalysis), \
   F(compact_sched_switch_skipped,             kSingle,  kInfo,     kAnalysis), \
-  F(compact_sched_waking_skipped,             kSingle,  kInfo,     kAnalysis)
+  F(compact_sched_waking_skipped,             kSingle,  kInfo,     kAnalysis), \
+  F(empty_chrome_metadata,                    kSingle,  kError,    kTrace)
 // clang-format on
 
 enum Type {
diff --git a/src/trace_processor/trace_sorter.h b/src/trace_processor/trace_sorter.h
index 82f5acd..dcf65b4 100644
--- a/src/trace_processor/trace_sorter.h
+++ b/src/trace_processor/trace_sorter.h
@@ -145,6 +145,7 @@
   // Extract all events ignoring the window.
   void ExtractEventsForced() {
     SortAndExtractEventsBeyondWindow(/*window_size_ns=*/0);
+    queues_.resize(0);
   }
 
   // Sets the window size to be the size specified (which should be lower than
diff --git a/test/metrics/android_lmk_reason.out b/test/metrics/android_lmk_reason.out
index 6bcb83d..df05cff 100644
--- a/test/metrics/android_lmk_reason.out
+++ b/test/metrics/android_lmk_reason.out
@@ -2,4 +2,8 @@
   lmks: {
     oom_score_adj: 0
   }
+  lmks: {
+    oom_score_adj: 100
+    system_ion_heap_size: 1000
+  }
 }
diff --git a/test/metrics/android_lmk_reason.py b/test/metrics/android_lmk_reason.py
index efede95..199768e 100644
--- a/test/metrics/android_lmk_reason.py
+++ b/test/metrics/android_lmk_reason.py
@@ -23,10 +23,24 @@
 trace.add_process_tree_packet()
 trace.add_process(1, 0, 'init')
 trace.add_process(2, 1, 'system_server')
-trace.add_process(3, 1, 'lmk_victim_1')
+trace.add_process(3, 1, 'lmk_victim:no_data:ignored')
+trace.add_process(4, 1, 'lmk_victim:no_ion')
+trace.add_process(5, 1, 'lmk_victim:with_ion')
 
 trace.add_ftrace_packet(cpu=0)
-trace.add_oom_score_update(ts=1, oom_score_adj=0, pid=3)
-trace.add_kernel_lmk(ts=100, tid=3)
+trace.add_kernel_lmk(ts=101, tid=3)
+
+trace.add_ftrace_packet(cpu=0)
+trace.add_oom_score_update(ts=201, oom_score_adj=0, pid=4)
+trace.add_kernel_lmk(ts=202, tid=4)
+
+trace.add_ftrace_packet(cpu=0)
+trace.add_ion_event(ts=301, tid=5, heap_name='system', size=1000)
+trace.add_oom_score_update(ts=302, oom_score_adj=100, pid=5)
+trace.add_kernel_lmk(ts=303, tid=5)
+
+# Dummy trace event to ensure the trace does not end on an LMK.
+trace.add_ftrace_packet(cpu=0)
+trace.add_oom_score_update(ts=1001, oom_score_adj=-800, pid=2)
 
 print(trace.trace.SerializeToString())
diff --git a/test/producer_socket_fuzzer.cc b/test/producer_socket_fuzzer.cc
index ac7227f..46904df 100644
--- a/test/producer_socket_fuzzer.cc
+++ b/test/producer_socket_fuzzer.cc
@@ -37,8 +37,8 @@
 
   void OnConnect(base::UnixSocket* self, bool connected) override {
     PERFETTO_CHECK(connected && self->is_connected());
-    PERFETTO_CHECK(self->Send(data_, size_, self->fd(),
-                              base::UnixSocket::BlockingMode::kBlocking));
+    self->Send(data_, size_, self->fd(),
+               base::UnixSocket::BlockingMode::kBlocking);
     data_sent_();
   }
 
diff --git a/test/trace_processor/index b/test/trace_processor/index
index 85857c1..9c78fec 100644
--- a/test/trace_processor/index
+++ b/test/trace_processor/index
@@ -89,6 +89,7 @@
 ../data/android_sched_and_ps.pb span_outer_join.sql span_outer_join.out
 ../data/android_sched_and_ps.pb span_left_join_empty_right.sql span_left_join_empty_right.out
 ../data/android_sched_and_ps.pb span_join_zero_negative_dur.sql span_join_zero_negative_dur.out
+../data/android_sched_and_ps.pb span_outer_join_empty.sql span_outer_join_empty_android_sched_and_ps.out
 
 # Window table
 ../data/android_sched_and_ps.pb smoke_window.sql android_sched_and_ps_smoke_window.out
diff --git a/test/trace_processor/span_outer_join_empty.sql b/test/trace_processor/span_outer_join_empty.sql
new file mode 100644
index 0000000..7a07268
--- /dev/null
+++ b/test/trace_processor/span_outer_join_empty.sql
@@ -0,0 +1,24 @@
+create table t1(
+  ts BIG INT,
+  dur BIG INT,
+  part BIG INT,
+  PRIMARY KEY (part, ts)
+) without rowid;
+
+create table t2(
+  ts BIG INT,
+  dur BIG INT,
+  part BIG INT,
+  PRIMARY KEY (part, ts)
+) without rowid;
+
+-- Insert a single row into t1.
+INSERT INTO t1(ts, dur, part)
+VALUES (500, 100, 10);
+
+-- t2 is empty.
+
+create virtual table sp using span_outer_join(t1 PARTITIONED part, 
+                                             t2 PARTITIONED part);
+
+select * from sp;
diff --git a/test/trace_processor/span_outer_join_empty_android_sched_and_ps.out b/test/trace_processor/span_outer_join_empty_android_sched_and_ps.out
new file mode 100644
index 0000000..d2bd151
--- /dev/null
+++ b/test/trace_processor/span_outer_join_empty_android_sched_and_ps.out
@@ -0,0 +1,7 @@
+
+
+
+
+
+"ts","dur","part"
+500,100,10
diff --git a/ui/src/controller/heap_profile_controller.ts b/ui/src/controller/heap_profile_controller.ts
index 4a5d262..a556b92 100644
--- a/ui/src/controller/heap_profile_controller.ts
+++ b/ui/src/controller/heap_profile_controller.ts
@@ -24,6 +24,8 @@
   SPACE_MEMORY_ALLOCATED_NOT_FREED_KEY
 } from '../common/flamegraph_util';
 import {CallsiteInfo, HeapProfileFlamegraph} from '../common/state';
+import {fromNs} from '../common/time';
+import {HeapProfileDetails} from '../frontend/globals';
 
 import {Controller} from './controller';
 import {globals} from './globals';
@@ -36,6 +38,9 @@
 export class HeapProfileController extends Controller<'main'> {
   private flamegraphDatasets: Map<string, CallsiteInfo[]> = new Map();
   private lastSelectedHeapProfile?: HeapProfileFlamegraph;
+  private requestingData = false;
+  private queuedRequest = false;
+  private heapProfileDetails: HeapProfileDetails = {};
 
   constructor(private args: HeapProfileControllerArgs) {
     super('main');
@@ -46,72 +51,102 @@
 
     if (!selection) return;
 
-    if (selection.kind === 'HEAP_PROFILE_FLAMEGRAPH') {
-      if (this.lastSelectedHeapProfile === undefined ||
-          (this.lastSelectedHeapProfile !== undefined &&
-           (this.lastSelectedHeapProfile.id !== selection.id ||
-            this.lastSelectedHeapProfile.ts !== selection.ts ||
-            this.lastSelectedHeapProfile.upid !== selection.upid ||
-            this.lastSelectedHeapProfile.viewingOption !==
-                selection.viewingOption ||
-            this.lastSelectedHeapProfile.expandedCallsite !==
-                selection.expandedCallsite))) {
-        const selectedId = selection.id;
-        const selectedUpid = selection.upid;
-        const selectedKind = selection.kind;
-        const selectedTs = selection.ts;
-        const selectedExpandedCallsite = selection.expandedCallsite;
-        const lastSelectedViewingOption = selection.viewingOption ?
-            selection.viewingOption :
-            DEFAULT_VIEWING_OPTION;
+    if (this.shouldRequestData(selection)) {
+      if (this.requestingData) {
+        this.queuedRequest = true;
+      } else {
+        this.requestingData = true;
+        const selectedHeapProfile: HeapProfileFlamegraph =
+            this.copyHeapProfile(selection);
 
-        this.lastSelectedHeapProfile = {
-          kind: selectedKind,
-          id: selectedId,
-          upid: selectedUpid,
-          ts: selectedTs,
-          expandedCallsite: selectedExpandedCallsite,
-          viewingOption: lastSelectedViewingOption
-        };
-
-        const expandedId =
-            selectedExpandedCallsite ? selectedExpandedCallsite.id : -1;
-        const rootSize = selectedExpandedCallsite === undefined ?
-            undefined :
-            selectedExpandedCallsite.totalSize;
-
-        const key = `${selectedUpid};${selectedTs}`;
-
-        // TODO(tneda): Prevent lots of flamegraph queries being queued if a
-        // user clicks lots of the markers quickly.
-        this.getFlamegraphData(
-                key, lastSelectedViewingOption, selection.ts, selectedUpid)
-            .then(flamegraphData => {
-              if (flamegraphData !== undefined && selection &&
-                  selection.kind === selectedKind &&
-                  selection.id === selectedId && selection.ts === selectedTs) {
-                const expandedFlamegraphData =
-                    expandCallsites(flamegraphData, expandedId);
-                this.prepareAndMergeCallsites(
-                    expandedFlamegraphData,
-                    this.lastSelectedHeapProfile!.viewingOption,
-                    rootSize,
-                    this.lastSelectedHeapProfile!.expandedCallsite);
+        this.getHeapProfileMetadata(
+                selectedHeapProfile.ts, selectedHeapProfile.upid)
+            .then(result => {
+              if (result !== undefined) {
+                Object.assign(this.heapProfileDetails, result);
               }
+
+              this.lastSelectedHeapProfile = this.copyHeapProfile(selection);
+
+              const expandedId = selectedHeapProfile.expandedCallsite ?
+                  selectedHeapProfile.expandedCallsite.id :
+                  -1;
+              const rootSize =
+                  selectedHeapProfile.expandedCallsite === undefined ?
+                  undefined :
+                  selectedHeapProfile.expandedCallsite.totalSize;
+
+              const key =
+                  `${selectedHeapProfile.upid};${selectedHeapProfile.ts}`;
+
+              this.getFlamegraphData(
+                      key,
+                      selectedHeapProfile.viewingOption ?
+                          selectedHeapProfile.viewingOption :
+                          DEFAULT_VIEWING_OPTION,
+                      selection.ts,
+                      selectedHeapProfile.upid)
+                  .then(flamegraphData => {
+                    if (flamegraphData !== undefined && selection &&
+                        selection.kind === selectedHeapProfile.kind &&
+                        selection.id === selectedHeapProfile.id &&
+                        selection.ts === selectedHeapProfile.ts) {
+                      const expandedFlamegraphData =
+                          expandCallsites(flamegraphData, expandedId);
+                      this.prepareAndMergeCallsites(
+                          expandedFlamegraphData,
+                          this.lastSelectedHeapProfile!.viewingOption,
+                          rootSize,
+                          this.lastSelectedHeapProfile!.expandedCallsite);
+                    }
+                  })
+                  .finally(() => {
+                    this.requestingData = false;
+                    if (this.queuedRequest) {
+                      this.queuedRequest = false;
+                      this.run();
+                    }
+                  });
             });
       }
     }
   }
 
+  private copyHeapProfile(heapProfile: HeapProfileFlamegraph):
+      HeapProfileFlamegraph {
+    return {
+      kind: heapProfile.kind,
+      id: heapProfile.id,
+      upid: heapProfile.upid,
+      ts: heapProfile.ts,
+      expandedCallsite: heapProfile.expandedCallsite,
+      viewingOption: heapProfile.viewingOption
+    };
+  }
+
+  private shouldRequestData(selection: HeapProfileFlamegraph) {
+    return selection.kind === 'HEAP_PROFILE_FLAMEGRAPH' &&
+        (this.lastSelectedHeapProfile === undefined ||
+         (this.lastSelectedHeapProfile !== undefined &&
+          (this.lastSelectedHeapProfile.id !== selection.id ||
+           this.lastSelectedHeapProfile.ts !== selection.ts ||
+           this.lastSelectedHeapProfile.upid !== selection.upid ||
+           this.lastSelectedHeapProfile.viewingOption !==
+               selection.viewingOption ||
+           this.lastSelectedHeapProfile.expandedCallsite !==
+               selection.expandedCallsite)));
+  }
+
   private prepareAndMergeCallsites(
       flamegraphData: CallsiteInfo[],
       viewingOption: string|undefined = DEFAULT_VIEWING_OPTION,
       rootSize?: number, expandedCallsite?: CallsiteInfo) {
     const mergedFlamegraphData = mergeCallsites(
         flamegraphData, this.getMinSizeDisplayed(flamegraphData, rootSize));
-    globals.publish(
-        'HeapProfileFlamegraph',
-        {flamegraph: mergedFlamegraphData, expandedCallsite, viewingOption});
+    this.heapProfileDetails.flamegraph = mergedFlamegraphData;
+    this.heapProfileDetails.expandedCallsite = expandedCallsite;
+    this.heapProfileDetails.viewingOption = viewingOption;
+    globals.publish('HeapProfileDetails', this.heapProfileDetails);
   }
 
 
@@ -123,7 +158,7 @@
     if (this.flamegraphDatasets.has(key)) {
       currentData = this.flamegraphDatasets.get(key)!;
     } else {
-      // TODO(tneda): Show loading state.
+      // TODO(taylori): Show loading state.
 
       // Collecting data for drawing flamegraph for selected heap profile.
       // Data needs to be in following format:
@@ -203,7 +238,7 @@
         this.tableName(`grouped_callsites_for_flamegraph`);
     // Joining the callsite table with frame table then with alloc table to get
     // the size and name for each callsite.
-    // TODO(tneda): Make frame name nullable in the trace processor for
+    // TODO(taylori): Make frame name nullable in the trace processor for
     // consistency with the other columns.
     await this.args.engine.query(
         `create view if not exists ${tableNameCallsiteNameSize} as
@@ -310,4 +345,29 @@
     }
     return MIN_PIXEL_DISPLAYED * rootSize / width;
   }
+
+  async getHeapProfileMetadata(ts: number, upid: number) {
+    // Don't do anything if selection of the marker stayed the same.
+    if ((this.lastSelectedHeapProfile !== undefined &&
+         ((this.lastSelectedHeapProfile.ts === ts &&
+           this.lastSelectedHeapProfile.upid === upid)))) {
+      return undefined;
+    }
+
+    // Collecting data for more information about heap profile, such as:
+    // total memory allocated, memory that is allocated and not freed.
+    const pidValue = await this.args.engine.query(
+        `select pid from process where upid = ${upid}`);
+    const pid = pidValue.columns[0].longValues![0];
+    const allocatedMemory = await this.args.engine.query(
+        `select sum(size) from heap_profile_allocation where ts <= ${
+            ts} and size > 0 and upid = ${upid}`);
+    const allocated = allocatedMemory.columns[0].longValues![0];
+    const allocatedNotFreedMemory = await this.args.engine.query(
+        `select sum(size) from heap_profile_allocation where ts <= ${
+            ts} and upid = ${upid}`);
+    const allocatedNotFreed = allocatedNotFreedMemory.columns[0].longValues![0];
+    const startTime = fromNs(ts) - globals.state.traceTime.startSec;
+    return {ts: startTime, allocated, allocatedNotFreed, tsNs: ts, pid, upid};
+  }
 }
diff --git a/ui/src/controller/record_controller.ts b/ui/src/controller/record_controller.ts
index acfe936..0b1063f 100644
--- a/ui/src/controller/record_controller.ts
+++ b/ui/src/controller/record_controller.ts
@@ -226,7 +226,7 @@
 
   let heapprofd: HeapprofdConfig|undefined = undefined;
   if (uiCfg.heapProfiling) {
-    // TODO(tneda): Check or inform user if buffer size are too small.
+    // TODO(taylori): Check or inform user if buffer size are too small.
     if (heapprofd === undefined) heapprofd = new HeapprofdConfig();
     heapprofd.samplingIntervalBytes = uiCfg.hpSamplingIntervalBytes;
     if (uiCfg.hpSharedMemoryBuffer >= 8192 &&
diff --git a/ui/src/controller/selection_controller.ts b/ui/src/controller/selection_controller.ts
index 3b257d3..540ce00 100644
--- a/ui/src/controller/selection_controller.ts
+++ b/ui/src/controller/selection_controller.ts
@@ -14,12 +14,7 @@
 
 import {Engine} from '../common/engine';
 import {fromNs, toNs} from '../common/time';
-import {
-  CounterDetails,
-  HeapProfileDetails,
-  SliceDetails
-} from '../frontend/globals';
-
+import {CounterDetails, SliceDetails} from '../frontend/globals';
 import {Controller} from './controller';
 import {globals} from './globals';
 
@@ -65,18 +60,7 @@
 
     if (selectedId === undefined) return;
 
-    if (selection.kind === 'HEAP_PROFILE') {
-      const selected: HeapProfileDetails = {};
-      const ts = selection.ts;
-      const upid = selection.upid;
-      this.heapDumpDetails(ts, upid).then(results => {
-        if (results !== undefined && selection &&
-            selection.kind === selectedKind && selection.id === selectedId) {
-          Object.assign(selected, results);
-          globals.publish('HeapProfileDetails', selected);
-        }
-      });
-    } else if (selection.kind === 'COUNTER') {
+    if (selection.kind === 'COUNTER') {
       const selected: CounterDetails = {};
       this.counterDetails(selection.leftTs, selection.rightTs, selection.id)
           .then(results => {
@@ -139,24 +123,6 @@
     });
   }
 
-  async heapDumpDetails(ts: number, upid: number) {
-    // Collecting data for more information about heap profile, such as:
-    // total memory allocated, memory that is allocated and not freed.
-    const pidValue = await this.args.engine.query(
-        `select pid from process where upid = ${upid}`);
-    const pid = pidValue.columns[0].longValues![0];
-    const allocatedMemory = await this.args.engine.query(
-        `select sum(size) from heap_profile_allocation where ts <= ${
-            ts} and size > 0 and upid = ${upid}`);
-    const allocated = allocatedMemory.columns[0].longValues![0];
-    const allocatedNotFreedMemory = await this.args.engine.query(
-        `select sum(size) from heap_profile_allocation where ts <= ${
-            ts} and upid = ${upid}`);
-    const allocatedNotFreed = allocatedNotFreedMemory.columns[0].longValues![0];
-    const startTime = fromNs(ts) - globals.state.traceTime.startSec;
-    return {ts: startTime, allocated, allocatedNotFreed, tsNs: ts, pid, upid};
-  }
-
   async counterDetails(ts: number, rightTs: number, id: number) {
     const counter = await this.args.engine.query(
         `SELECT value FROM counter_values WHERE ts = ${ts} AND counter_id = ${
diff --git a/ui/src/frontend/details_panel.ts b/ui/src/frontend/details_panel.ts
index 628af84..8ff4a96 100644
--- a/ui/src/frontend/details_panel.ts
+++ b/ui/src/frontend/details_panel.ts
@@ -32,6 +32,23 @@
 const DOWN_ICON = 'keyboard_arrow_down';
 const DRAG_HANDLE_HEIGHT_PX = 28;
 const DEFAULT_DETAILS_HEIGHT_PX = 230 + DRAG_HANDLE_HEIGHT_PX;
+let HEAP_PROFILE_DETAILS_HEIGHT_PX = DEFAULT_DETAILS_HEIGHT_PX;
+
+function generateHeapProfileHeight() {
+  const panelContainer =
+      document.querySelector('.scrolling-panel-container') as HTMLElement;
+  if (HEAP_PROFILE_DETAILS_HEIGHT_PX === DEFAULT_DETAILS_HEIGHT_PX &&
+      panelContainer !== null) {
+    HEAP_PROFILE_DETAILS_HEIGHT_PX = panelContainer.clientHeight;
+  }
+}
+
+function getHeightForDetailsPanel(): number {
+  return globals.state.currentSelection &&
+          globals.state.currentSelection.kind === 'HEAP_PROFILE' ?
+      HEAP_PROFILE_DETAILS_HEIGHT_PX :
+      DEFAULT_DETAILS_HEIGHT_PX;
+}
 
 function hasLogs(): boolean {
   const data = globals.trackDataStore.get(LogExistsKey) as LogExists;
@@ -49,6 +66,7 @@
 class DragHandle implements m.ClassComponent<DragHandleAttrs> {
   private dragStartHeight = 0;
   private height = 0;
+  private previousHeight = this.height;
   private resize: (height: number) => void = () => {};
   private isClosed = this.height <= DRAG_HANDLE_HEIGHT_PX;
   private tabNames = new Map<Tab, string>([
@@ -116,9 +134,10 @@
             onclick: () => {
               if (this.height === DRAG_HANDLE_HEIGHT_PX) {
                 this.isClosed = false;
-                this.resize(DEFAULT_DETAILS_HEIGHT_PX);
+                this.resize(this.previousHeight);
               } else {
                 this.isClosed = true;
+                this.previousHeight = this.height;
                 this.resize(DRAG_HANDLE_HEIGHT_PX);
               }
               globals.rafScheduler.scheduleFullRedraw();
@@ -133,6 +152,7 @@
   private detailsHeight = DRAG_HANDLE_HEIGHT_PX;
   // Used to set details panel to default height on selection.
   private showDetailsPanel = true;
+  private lastSelectedKind?: string;
 
   view() {
     const detailsPanels: Map<Tab, AnyAttrsVnode> = new Map();
@@ -159,6 +179,7 @@
           detailsPanels.set(
               'current_selection',
               m(HeapProfileDetailsPanel, {key: 'heap_profile'}));
+          generateHeapProfileHeight();
           break;
         case 'CHROME_SLICE':
           detailsPanels.set('current_selection', m(ChromeSliceDetailsPanel));
@@ -187,11 +208,13 @@
     }
 
     const wasShowing = this.showDetailsPanel;
+    const changedSelection =
+        curSelection && this.lastSelectedKind !== curSelection.kind;
     this.showDetailsPanel = detailsPanels.size > 0;
+    this.lastSelectedKind = curSelection ? curSelection.kind : undefined;
     // Pop up details panel on first selection.
-    if (!wasShowing && this.showDetailsPanel &&
-        this.detailsHeight === DRAG_HANDLE_HEIGHT_PX) {
-      this.detailsHeight = DEFAULT_DETAILS_HEIGHT_PX;
+    if (!wasShowing && changedSelection && this.showDetailsPanel) {
+      this.detailsHeight = getHeightForDetailsPanel();
     }
 
     const panel = globals.frontendLocalState.currentTab ?
diff --git a/ui/src/frontend/flamegraph.ts b/ui/src/frontend/flamegraph.ts
index 472440a..4d4dfd1 100644
--- a/ui/src/frontend/flamegraph.ts
+++ b/ui/src/frontend/flamegraph.ts
@@ -113,7 +113,7 @@
   draw(
       ctx: CanvasRenderingContext2D, width: number, height: number, x = 0,
       y = 0, unit = 'B') {
-    // TODO(tneda): Instead of pesimistic approach improve displaying text.
+    // TODO(taylori): Instead of pesimistic approach improve displaying text.
     const name = '____MMMMMMQQwwZZZZZZzzzzzznnnnnnwwwwwwWWWWWqq$$mmmmmm__';
     const charWidth = ctx.measureText(name).width / name.length;
     const nodeHeight = this.getNodeHeight();
diff --git a/ui/src/frontend/heap_profile_panel.ts b/ui/src/frontend/heap_profile_panel.ts
index c862582..a210a9e 100644
--- a/ui/src/frontend/heap_profile_panel.ts
+++ b/ui/src/frontend/heap_profile_panel.ts
@@ -152,7 +152,6 @@
     const engine = Object.values(globals.state.engines)[0];
     if (!engine) return;
     const src = engine.source;
-    // TODO(tneda): add second timestamp
     globals.dispatch(
         Actions.convertTraceToPprof({pid: this.pid, ts1: this.ts, src}));
   }
diff --git a/ui/src/frontend/index.ts b/ui/src/frontend/index.ts
index 72d21b2..5f32d4f 100644
--- a/ui/src/frontend/index.ts
+++ b/ui/src/frontend/index.ts
@@ -28,7 +28,6 @@
   LogExistsKey
 } from '../common/logs';
 import {CurrentSearchResults, SearchSummary} from '../common/search_data';
-import {CallsiteInfo} from '../common/state';
 
 import {maybeShowErrorDialog} from './error_dialog';
 import {
@@ -130,17 +129,6 @@
     this.redraw();
   }
 
-  publishHeapProfileFlamegraph(args: {
-    flamegraph: CallsiteInfo[],
-    expandedCallsite?: CallsiteInfo,
-    viewingOption?: string
-  }) {
-    globals.heapProfileDetails.flamegraph = args.flamegraph;
-    globals.heapProfileDetails.expandedCallsite = args.expandedCallsite;
-    globals.heapProfileDetails.viewingOption = args.viewingOption;
-    this.redraw();
-  }
-
   publishFileDownload(args: {file: File, name?: string}) {
     const url = URL.createObjectURL(args.file);
     const a = document.createElement('a');
diff --git a/ui/src/frontend/record_page.ts b/ui/src/frontend/record_page.ts
index 21df365..5a85756 100644
--- a/ui/src/frontend/record_page.ts
+++ b/ui/src/frontend/record_page.ts
@@ -362,7 +362,7 @@
         set: (cfg, val) => cfg.hpSharedMemoryBuffer = val,
         get: (cfg) => cfg.hpSharedMemoryBuffer
       } as SliderAttrs)
-      // TODO(tneda): Add advanced options.
+      // TODO(taylori): Add advanced options.
   );
 }