tequilaOS/platform_bionic
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
platform_bionic/benchmarks/linker_relocation
History
Aditya Choudhary d9d37c09d8 Migrate Test Targets to New Android Ownership Model 
This CL is created as a best effort to migrate test targets to the new Android ownership model.
It is based on historical data from repository history and insights from git blame.
Given the nature of this effort, there may be instances of incorrect attribution. If you find incorrect or unnecessary
attribution in this CL, please create a new CL to fix that.

For detailed guidelines and further information on the migration please refer to the link below,
go/new-android-ownership-model

Bug: 304529413
Test: N/A
Change-Id: Ie36b2a3245d9901323affcc5e51dafbb87af9248
2024-02-02 13:57:12 +00:00
..
gen Silence the linker_relocation benchmark weak symbol warnings. 2024-01-20 00:30:51 +00:00
include Add riscv64 support to the linker relocation benchmark. 2022-11-14 21:43:30 +00:00
regen Silence the linker_relocation benchmark weak symbol warnings. 2024-01-20 00:30:51 +00:00
.gitignore Add a linker relocation benchmark 2020-01-14 13:12:56 -08:00
Android.bp Migrate Test Targets to New Android Ownership Model 2024-02-02 13:57:12 +00:00
gen_bench.sh Add a linker relocation benchmark 2020-01-14 13:12:56 -08:00
linker_reloc_bench.cpp Add a linker relocation benchmark 2020-01-14 13:12:56 -08:00
README.md Add a linker relocation benchmark 2020-01-14 13:12:56 -08:00
run_bench_with_ninja.sh Add a linker relocation benchmark 2020-01-14 13:12:56 -08:00

README.md

Dynamic Linker Relocation Benchmark

This benchmark measures the time spent in the dynamic linker to load a large set of shared objects with many symbols and relocations. It mimics the work involved in loading a fixed version of libandroid_servers.so.

Running the benchmark

To run the benchmark, build the linker-reloc-bench target, sync data, and run the benchmark from /data/benchmarktest[64]/linker-reloc-bench.

There is also a run_bench_with_ninja.sh script that uses the gen_bench.py --ninja mode to generate a benchmark. It's useful for experimentation. The --cc and --linker flags allow swapping out different static and dynamic linkers.

Regenerating the synthetic benchmark

regen/dump_relocs.py scans an ELF file and its dependencies, outputting a JSON dump, then regen/gen_bench.py processes the JSON file into benchmark code. gen_bench.py has two modes:

  • (default) generate Android.bp and source files
  • with --ninja: generate a build.ninja instead, and build a set of ELF file outputs