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| author | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2018-09-03 16:44:52 -0700 |
|---|---|---|
| committer | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2018-09-03 16:44:52 -0700 |
| commit | 49dbe4362b431629111b85929d91fe9a46c42295 (patch) | |
| tree | 3f42de4c573f6c9f205deef4b1e283b567764709 | |
| parent | 63a12a5ed3c4aca61cc46078b6cdf1d161425a69 (diff) | |
| download | gperftools-49dbe4362b431629111b85929d91fe9a46c42295.tar.gz | |
Add comment about gperftools 2.8 not deduplicating heapz samples.
| -rw-r--r-- | src/gperftools/malloc_extension.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gperftools/malloc_extension.h b/src/gperftools/malloc_extension.h index 689b5f1..1800266 100644 --- a/src/gperftools/malloc_extension.h +++ b/src/gperftools/malloc_extension.h @@ -123,6 +123,10 @@ class PERFTOOLS_DLL_DECL MallocExtension { // therefore be passed to "pprof". This function is equivalent to // ReadStackTraces. The main difference is that this function returns // serialized data appropriately formatted for use by the pprof tool. + // + // Since gperftools 2.8 heap samples are not de-duplicated by the + // library anymore. + // // NOTE: by default, tcmalloc does not do any heap sampling, and this // function will always return an empty sample. To get useful // data from GetHeapSample, you must also set the environment |