diff options
| author | jeff <jeff@FreeBSD.org> | 2009-04-29 03:15:43 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2009-04-29 03:15:43 +0000 |
| commit | 88a1cd92bb65d5fea64da9d6da5694c7446c16ac (patch) | |
| tree | ae684d49b5d16e6549c119db6fcd2aff0dd71814 /sys/sys/smp.h | |
| parent | 1507f5bd4dc89d7b55b8e3f74a4048583619a504 (diff) | |
| download | FreeBSD-src-88a1cd92bb65d5fea64da9d6da5694c7446c16ac.zip FreeBSD-src-88a1cd92bb65d5fea64da9d6da5694c7446c16ac.tar.gz | |
- Remove the bogus idle thread state code. This may have a race in it
and it only optimized out an ipi or mwait in very few cases.
- Skip the adaptive idle code when running on SMT or HTT cores. This
just wastes cpu time that could be used on a busy thread on the same
core.
- Rename CG_FLAG_THREAD to CG_FLAG_SMT to be more descriptive. Re-use
CG_FLAG_THREAD to mean SMT or HTT.
Sponsored by: Nokia
Diffstat (limited to 'sys/sys/smp.h')
| -rw-r--r-- | sys/sys/smp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/sys/smp.h b/sys/sys/smp.h index 500516f..05c8642 100644 --- a/sys/sys/smp.h +++ b/sys/sys/smp.h @@ -54,7 +54,8 @@ struct cpu_group { * Behavior modifiers for load balancing and affinity. */ #define CG_FLAG_HTT 0x01 /* Schedule the alternate core last. */ -#define CG_FLAG_THREAD 0x02 /* New age htt, less crippled. */ +#define CG_FLAG_SMT 0x02 /* New age htt, less crippled. */ +#define CG_FLAG_THREAD (CG_FLAG_HTT | CG_FLAG_SMT) /* Any threading. */ /* * Convenience routines for building topologies. |
