diff options
| author | Attilio Rao <attilio@FreeBSD.org> | 2009-11-03 16:46:52 +0000 |
|---|---|---|
| committer | Attilio Rao <attilio@FreeBSD.org> | 2009-11-03 16:46:52 +0000 |
| commit | 1b9d701feea709d06a3f85e0bf2d058aa5758b52 (patch) | |
| tree | 33345f6b0c0607c9b4b3c28c1eb1f317c974a310 /sys/kern/sched_4bsd.c | |
| parent | 1c89fc757aea8b62246d11b40c144d843dfd837d (diff) | |
| download | src-1b9d701feea709d06a3f85e0bf2d058aa5758b52.tar.gz src-1b9d701feea709d06a3f85e0bf2d058aa5758b52.zip | |
Split P_NOLOAD into a per-thread flag (TDF_NOLOAD).
This improvements aims for avoiding further cache-misses in scheduler
specific functions which need to keep track of average thread running
time and further locking in places setting for this flag.
Reported by: jeff (originally), kris (currently)
Reviewed by: jhb
Tested by: Giuseppe Cocomazzi <sbudella at email dot it>
Notes
Notes:
svn path=/head/; revision=198854
Diffstat (limited to 'sys/kern/sched_4bsd.c')
| -rw-r--r-- | sys/kern/sched_4bsd.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c index 4fe1c1415f2c..e13cffc70d9f 100644 --- a/sys/kern/sched_4bsd.c +++ b/sys/kern/sched_4bsd.c @@ -728,10 +728,10 @@ sched_exit_thread(struct thread *td, struct thread *child) thread_lock(td); td->td_estcpu = ESTCPULIM(td->td_estcpu + child->td_estcpu); thread_unlock(td); - mtx_lock_spin(&sched_lock); - if ((child->td_proc->p_flag & P_NOLOAD) == 0) + thread_lock(child); + if ((child->td_flags & TDF_NOLOAD) == 0) sched_load_rem(); - mtx_unlock_spin(&sched_lock); + thread_unlock(child); } void @@ -937,7 +937,7 @@ sched_switch(struct thread *td, struct thread *newtd, int flags) thread_unlock(td); } - if ((p->p_flag & P_NOLOAD) == 0) + if ((td->td_flags & TDF_NOLOAD) == 0) sched_load_rem(); if (newtd) @@ -980,7 +980,7 @@ sched_switch(struct thread *td, struct thread *newtd, int flags) ("trying to run inhibited thread")); newtd->td_flags |= TDF_DIDRUN; TD_SET_RUNNING(newtd); - if ((newtd->td_proc->p_flag & P_NOLOAD) == 0) + if ((newtd->td_flags & TDF_NOLOAD) == 0) sched_load_add(); } else { newtd = choosethread(); @@ -1289,7 +1289,7 @@ sched_add(struct thread *td, int flags) } } - if ((td->td_proc->p_flag & P_NOLOAD) == 0) + if ((td->td_flags & TDF_NOLOAD) == 0) sched_load_add(); runq_add(ts->ts_runq, td, flags); if (cpu != NOCPU) @@ -1338,7 +1338,7 @@ sched_add(struct thread *td, int flags) if (maybe_preempt(td)) return; } - if ((td->td_proc->p_flag & P_NOLOAD) == 0) + if ((td->td_flags & TDF_NOLOAD) == 0) sched_load_add(); runq_add(ts->ts_runq, td, flags); maybe_resched(td); @@ -1360,7 +1360,7 @@ sched_rem(struct thread *td) "prio:%d", td->td_priority, KTR_ATTR_LINKED, sched_tdname(curthread)); - if ((td->td_proc->p_flag & P_NOLOAD) == 0) + if ((td->td_flags & TDF_NOLOAD) == 0) sched_load_rem(); #ifdef SMP if (ts->ts_runq != &runq) |