Type profiler by intercepting 'new' and 'delete' expressions.

tools/deep_memory_profiler/policy.l0.txt

Index: tools/deep_memory_profiler/policy.l0.txt
diff --git a/tools/deep_memory_profiler/policy.l0.txt b/tools/deep_memory_profiler/policy.l0.txt
index 9cc2a373730542617c6f77366b368d6b4e89f188..b430c6c8694530f3c9ea2a12eebcd4e9123a0ebe 100644
--- a/tools/deep_memory_profiler/policy.l0.txt
+++ b/tools/deep_memory_profiler/policy.l0.txt
@@ -2,6 +2,7 @@ heap profile policy: POLICY_DEEP_2
 # Read policy.README for description of this file.
 second                          optional        optional
 mmap-profiler                   mmap    .*(ProfilerMalloc|MemoryRegionMap::).*
+mmap-type-profiler              mmap    .*(TypeProfilerMalloc).*

[Ryan Sleevi, 2012/09/13 09:13:25]

It's unclear why these changes are necessary, as I do not see you dumping any
data yet (unlike src/third_party/tcmalloc/chromium/src/heap-profiler.cc, which
does/can dump)

Unfortunately, I was unable to find the policy.README these files refer to
either.

[Dai Mikurube (NOT FULLTIME), 2012/09/13 10:45:05]

It is required to omit type_profiler memory from profiling results for "actually
used by Chrome".  Even unless type information is dumped, existing profiler
should ignore type_profiler memory.

And, sorry, I mis-described the filename.  I fixed it to "README.policy".

 mmap-tcmalloc                   mmap    .*(DoAllocWithArena|SbrkSysAllocator::Alloc|MmapSysAllocator::Alloc|LowLevelAlloc::Alloc|LowLevelAlloc::AllocWithArena).*
 FROM_HERE_FOR_TOTAL             optional        optional
 mustbezero                      optional        optional