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| author | jamescook@chromium.org <jamescook@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-07-24 18:38:29 +0000 |
|---|---|---|
| committer | jamescook@chromium.org <jamescook@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-07-24 18:38:29 +0000 |
| commit | 111494e2d84d16764a5a6b1f70c096932ead454e (patch) | |
| tree | 5a81c9ba1236b2801305e7865094e0749e1f2cd4 /third_party/tcmalloc/README.chromium | |
| parent | b544c1ae28772fc1392a815af620433d59293363 (diff) | |
| download | chromium_src-111494e2d84d16764a5a6b1f70c096932ead454e.zip chromium_src-111494e2d84d16764a5a6b1f70c096932ead454e.tar.gz chromium_src-111494e2d84d16764a5a6b1f70c096932ead454e.tar.bz2 | |
Record Chrome trace events in tcmalloc heap profiles
This allows about:tracing to show tcmalloc heap memory allocation over time.
The implementation:
* Adds a "memory" checkbox to about:tracing
* Uses thread-local-storage to store the "stack" of trace events per thread while about:tracing is running.
* Introduces a StackGeneratorFunction callback into tcmalloc, allowing it to call back into Chrome to get a "stack" of trace events.
* Parses the heap profiler output of tcmalloc and converts it to JSON to be displayed by a visualizer in the about:tracing trace viewer.
BUG=243895
TEST=base_unittests TraceMemoryTest.*
Review URL: https://chromiumcodereview.appspot.com/15418002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@213473 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'third_party/tcmalloc/README.chromium')
| -rw-r--r-- | third_party/tcmalloc/README.chromium | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/third_party/tcmalloc/README.chromium b/third_party/tcmalloc/README.chromium index 9da19ca..0682e8d 100644 --- a/third_party/tcmalloc/README.chromium +++ b/third_party/tcmalloc/README.chromium @@ -89,3 +89,5 @@ Modifications: - Added support for android. - Use NULL instead of static_cast<uintptr_t>(0) in stack_trace_table.cc, for -std=c++11 compatibility. +- Added support for pseudo-stack heap profiling via a callback to retrieve a + simulated stack from the embedding application. |