Commit graph

8 commits

Author SHA1 Message Date
Chih-Hung Hsieh
1a5fd9c155 Fix misc-macro-parentheses warnings in bionic.
Add parentheses around macro arguments used beside operators,
or use constexpr for simple constants.
Bug: 28705665

Change-Id: I378c8aad92d3ec8e8c4b0440b5c2c99dfe01ce79
2016-06-10 15:25:49 -07:00
Elliott Hughes
281e06ba69 Switch bionic over to google-benchmark.
Also removes the old benchmarking library.

Change-Id: I4791ae69fa5dea03644d3d411c60b7c6d1fceae3
2016-03-07 13:50:50 -08:00
Elliott Hughes
c217373bd6 Fix unused result errors in bionic.
This lets us use _FORTIFY_SOURCE=2 on the host.

Change-Id: I69f5ff9834bfd595aae6584104bee10c4d8a5eeb
2015-05-13 13:18:04 -07:00
Christopher Ferris
df4942c04a Refactor the benchmark code.
Changes:
- Modify the benchmarks to derive from a single Benchmark object.
- Rewrite the main iteration code. This includes changing the iteration
  code to use the actual total time calculated by the benchmark as a basis
  for determining whether there are enough iterations instead of using
  the time it takes to run the benchmark.
- Allow benchmarks to take no argument, int, or double.
- Fix the PrettyInt printer for negative integers.
- Modify the max column width name to include the whole name including
  the arg part.
- Reformat property_benchmark.cpp in line with the rest of the code.
- Modify a few of the math benchmarks to take an argument instead of
  separate benchmarks for the same function with different args.
- Create a vector of regex_t structs to represent the args all at
  once instead of when running each benchmark.

This change is in preparation for adding new math based benchmarks.

Tested by running on a nexus flo running at max using the new code
and the old code and comparing. All of the numbers are similar, but
some of the iterations are different due to the slightly different
algorithm used.

Change-Id: I57ad1f3ff083282b9ffeb72e687cab369ce3523a
2015-02-19 14:58:24 -08:00
Elliott Hughes
8c4994bbc1 Implement __fsetlocking.
The old __isthreaded hack was never very useful on Android because all user
code runs in a VM where there are lots of threads running. But __fsetlocking
lets a caller say "I'll worry about the locking for this FILE*", which is
useful for the normal case where you don't share a FILE* between threads
so you don't need any locking.

Bug: 17154740
Bug: 18593728
Change-Id: I2a8dddc29d3edff39a3d7d793387f2253608a68d
2015-01-21 10:33:30 -08:00
Elliott Hughes
1cf32f83d3 Add a benchmark for using stdio to read a file in /proc.
Change-Id: I12517aae19e36b7c022a11e8807aece61bb0cb9c
2015-01-16 17:08:31 -08:00
Elliott Hughes
47dc7c974e Benchmark fread/fwrite both buffered and unbuffered.
Bug: 18556607
Change-Id: I53905aedcea75fe550d9c423fb701c2c9bf8e831
2014-12-01 13:12:18 -08:00
Elliott Hughes
b28e490b73 Add various benchmarks.
These are based on ones from system/extras/tests/bionic/.

Change-Id: I7b1ae15a2ca5d1031a6a511d97b88125c1770047
2014-03-11 11:20:52 -07:00