27 lines
1007 B
Diff
27 lines
1007 B
Diff
|
2010-12-02 Jakub Jelinek <jakub@redhat.com>
|
||
|
|
|
||
|
|
PR libgomp/43706
|
||
|
|
* env.c (initialize_env): Default to spin count 300000
|
||
|
|
instead of 20000000 if neither OMP_WAIT_POLICY nor GOMP_SPINCOUNT
|
||
|
|
is specified.
|
||
|
|
|
||
|
|
--- libgomp/env.c (revision 167370)
|
||
|
|
+++ libgomp/env.c (revision 167371)
|
||
|
|
@@ -502,14 +502,14 @@ initialize_env (void)
|
||
|
|
{
|
||
|
|
/* Using a rough estimation of 100000 spins per msec,
|
||
|
|
use 5 min blocking for OMP_WAIT_POLICY=active,
|
||
|
|
- 200 msec blocking when OMP_WAIT_POLICY is not specificed
|
||
|
|
+ 3 msec blocking when OMP_WAIT_POLICY is not specificed
|
||
|
|
and 0 when OMP_WAIT_POLICY=passive.
|
||
|
|
Depending on the CPU speed, this can be e.g. 5 times longer
|
||
|
|
or 5 times shorter. */
|
||
|
|
if (wait_policy > 0)
|
||
|
|
gomp_spin_count_var = 30000000000LL;
|
||
|
|
else if (wait_policy < 0)
|
||
|
|
- gomp_spin_count_var = 20000000LL;
|
||
|
|
+ gomp_spin_count_var = 300000LL;
|
||
|
|
}
|
||
|
|
/* gomp_throttled_spin_count_var is used when there are more libgomp
|
||
|
|
managed threads than available CPUs. Use very short spinning. */
|
