| commit | a0b4ee7b38e600f28e547585e754b7737b388d90 | [log] [tgz] |
|---|---|---|
| author | Masatake YAMATO <yamato@redhat.com> | Wed Apr 16 15:33:10 2014 +0900 |
| committer | Dmitry V. Levin <ldv@altlinux.org> | Fri May 30 22:57:39 2014 +0000 |
| tree | a1930dc1b72b43678b06171d48b152b08e8435fe | |
| parent | b45b7faa1fc0373831fb00a3892de45b4df87232 [diff] |
unwind: enable dwarf cache of libunwind
Here is the benchmark of the dwarf cache.
Target program:
#include <sched.h>
int main(void)
{
unsigned int max = 0x6fff, i;
for (i = 0; i < max; i++)
sched_yield();
return 0;
}
Command line:
./strace -o /dev/null -k a.out
With the dwarf cache:
real 0m12.081s
user 0m3.858s
sys 0m8.194s
Without the dwarf cache:
real 0m22.326s
user 0m5.218s
sys 0m16.952s
Signed-off-by: Masatake YAMATO <yamato@redhat.com>