m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-12-27 05:23:43 +01:00
Code Issues Releases Activity

Measure with caching disabled, global caching, and thread-local

Browse source 
caching.

(Logical change 1.114)
This commit is contained in:
mostang.com!davidm 2003-11-20 01:10:03 +00:00
parent 716484f000
commit 7a346fbf8c
1 changed files with 13 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
tests/Gperf-simple.c
View file

@ -48,7 +48,7 @@ measure_unwind (int maxlevel)
panic ("Unwound only %d levels, expected at least %d levels",
level, maxlevel);
printf ("initialization time = %gnsec, time per unwind-step = %gnsec\n",
printf (" unw_{getcontext+init_local}: %9.3f nsec, unw_step: %9.3f nsec\n",
1e9*(mid - start), 1e9*(stop - mid)/level);
return 0;
}
@ -71,6 +71,18 @@ main (int argc, char **argv)
if (argc > 1)
maxlevel = atol (argv[1]);
printf ("Caching: none\n");
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_NONE);
for (i = 0; i < 20; ++i)
f1 (0, maxlevel);
printf ("Caching: global\n");
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_GLOBAL);
for (i = 0; i < 20; ++i)
f1 (0, maxlevel);
printf ("Caching: per-thread\n");
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_PER_THREAD);
for (i = 0; i < 20; ++i)
f1 (0, maxlevel);
return 0;