| commit | bbc99c3c12379ca69121d79527412f0e2daf09e0 | [log] [tgz] |
|---|---|---|
| author | Florian Mayer <fmayer@google.com> | Thu Dec 06 11:53:22 2018 +0000 |
| committer | Florian Mayer <fmayer@google.com> | Thu Dec 06 11:53:22 2018 +0000 |
| tree | 5cbacce590bbcc268116d93409860fa50b1e723d | |
| parent | 20f90fc20369d8cb50cc04f8f91fdf31d8231fd3 [diff] |
profiling: Improve bookeeping.
Now keep a callstack -> (allocated, freed, alloc cnt, free cnt) mapping
in the HeapTracker.
Keep track of allocated and freed bytes. This allows to infer short
lived allocations.
This is needed for incremental dumps supporting multiple concurrent
profiling sessions for the same process.
Test: m
Test: flash walleye
Test: profile system_server
samples: { # (perfetto.protos.ProfilePacket.HeapSample) size=17B
callstack_id: 0x0000007be6974ce0
cumulative_allocated: 0x0000000000000180 # 384
cumulative_freed : 0x0000000000000120 # 288
alloc_count : 0x0000000000000004
free_count : 0x0000000000000003
}
Change-Id: I4f1a4caba6a0b2937bc096cd5b1fee549eefcf7cPerfetto is an open-source project for performance instrumentation and tracing of Linux/Android/Chrome platforms and user-space apps.
See www.perfetto.dev for docs.