The bionic benchmarks set the decay time in various ways, but
don't necessarily restore it properly. Add a new method for
getting the current decay time and then a way to restore it.
Right now the assumption is that the decay time defaults to zero,
but in the near future that assumption might be incorrect. Therefore
using this method will future proof the code.
Bug: 302212507
Test: Unit tests pass for both static and dynamic executables.
Test: Ran bionic benchmarks that were modified.
Change-Id: Ia77ff9ffee3081c5c1c02cb4309880f33b284e82
This is used to monitor the impact of different lock granularity in a
memory allocator. It creates different memory alloc/dealloc patterns
across different threads but keep the same amount of bytes to be
processed.
Bug: 288126442
Test: run benchmark with --benchmark_filter=BM_malloc_threads_throughput*
Change-Id: I24eea617a6346480524dcb8c0bdbe9bd8e90dd72
This is a new mallopt option that will force purge absolutely
everything no matter how long it takes to purge.
Wrote a unit test for the new mallopt, and added a test to help
verify that new mallopt parameters do not conflict with each other.
Modified some benchmarks to use this new parameter so that we can
get better RSS data.
Added a new M_PURGE_ALL benchmark.
Bug: 243851006
Test: All unit tests pass.
Test: Ran changed benchmarks.
Change-Id: I1b46a5e6253538108e052d11ee46fd513568adec
Update the native allocator documentation to include running of this
benchmark.
Move the malloc_benchmark.cpp to malloc_sql_benchmark.cpp and use
malloc_benchmark.cpp for benchmarking functions from malloc.h.
Bug: 137795072
Test: Ran new benchmark.
Change-Id: I76856de833032da324ad0bc0b6bd85a4ea8c253d
Adding some benchmarks that keep a certain number of allocation
around. This benchmark should not be used as an absolute for determining
what is a good/bad native allocator. However, it should be used to make
sure that numbers are not completely changed between allocator versions.
Also update the malloc sql benchmark to match the same style as these
new benchmarks.
Bug: 129743239
Test: Ran these benchmarks.
Change-Id: I1995d98fd269b61d9c96efed6eff3ed278e24c97
This runs through the trace of the allocations in a sql benchmark app
executed in the benchmark thread.
Add one benchmark with decay time set to 0 and another with decay time
set to 1.
Include a script that can generate a header file that can be used to
regenerate the data.
Bug: 112317428
Test: Builds, ran unit tests, ran benchmarks.
Change-Id: I62e287cc06b74b74bcc5a4bbee71b0fac0a196fd
