diff options
| author | peter <peter@FreeBSD.org> | 2002-07-19 21:06:01 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2002-07-19 21:06:01 +0000 |
| commit | febe98ab987ed825ad33e6021d93952ba1a00eb5 (patch) | |
| tree | 64c0bb823f585b24137a6d7d841d7864c4f74c27 /sys | |
| parent | 1926ab155f1c8b9139f44c6dee9e11137e730405 (diff) | |
| download | FreeBSD-src-febe98ab987ed825ad33e6021d93952ba1a00eb5.zip FreeBSD-src-febe98ab987ed825ad33e6021d93952ba1a00eb5.tar.gz | |
Set P_NOLOAD on the pagezero kthread so that it doesn't artificially skew
the loadav. This is not real load. If you have a nice process running in
the background, pagezero may sit in the run queue for ages and add one to
the loadav, and thereby affecting other scheduling decisions.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/vm/vm_zeroidle.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/vm/vm_zeroidle.c b/sys/vm/vm_zeroidle.c index 46db4e7..a239cfa 100644 --- a/sys/vm/vm_zeroidle.c +++ b/sys/vm/vm_zeroidle.c @@ -107,17 +107,23 @@ vm_page_zero_idle_wakeup(void) static void vm_pagezero(void) { - struct thread *td = curthread; + struct thread *td; + struct proc *p; struct rtprio rtp; int pages = 0; int pri; + td = curthread; + p = td->td_proc; rtp.prio = RTP_PRIO_MAX; rtp.type = RTP_PRIO_IDLE; mtx_lock_spin(&sched_lock); rtp_to_pri(&rtp, td->td_ksegrp); pri = td->td_priority; mtx_unlock_spin(&sched_lock); + PROC_LOCK(p); + p->p_flag |= P_NOLOAD; + PROC_UNLOCK(p); for (;;) { if (vm_page_zero_check()) { |
