diff options
| author | dyson <dyson@FreeBSD.org> | 1997-08-09 10:13:32 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1997-08-09 10:13:32 +0000 |
| commit | c38957d22b79e58dcfc2f1111afcbbc0019cfe89 (patch) | |
| tree | 032e068c65840f25e7fb938a4469b88eb574d5fd /sys/kern/kern_physio.c | |
| parent | 4843904b0d4173aaa56c2fb2ffd890565f7a2198 (diff) | |
| download | FreeBSD-src-c38957d22b79e58dcfc2f1111afcbbc0019cfe89.zip FreeBSD-src-c38957d22b79e58dcfc2f1111afcbbc0019cfe89.tar.gz | |
Modify the scheduling policy to take into account disk I/O waits
as chargeable CPU usage. This should mitigate the problem of processes
doing disk I/O hogging the CPU. Various users have reported the
problem, and test code shows that the problem should now be gone.
Diffstat (limited to 'sys/kern/kern_physio.c')
| -rw-r--r-- | sys/kern/kern_physio.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/kern/kern_physio.c b/sys/kern/kern_physio.c index 42d1d21..bfa7c01 100644 --- a/sys/kern/kern_physio.c +++ b/sys/kern/kern_physio.c @@ -16,7 +16,7 @@ * 4. Modifications may be freely made to this file if the above conditions * are met. * - * $Id$ + * $Id: kern_physio.c,v 1.19 1997/02/22 09:39:08 peter Exp $ */ #include <sys/param.h> @@ -112,7 +112,11 @@ physio(strategy, bp, dev, rw, minp, uio) spl = splbio(); while ((bp->b_flags & B_DONE) == 0) +#if defined(NO_SCHEDULE_MODS) tsleep((caddr_t)bp, PRIBIO, "physstr", 0); +#else + tsleep((caddr_t)bp, curproc->p_usrpri, "physstr", 0); +#endif splx(spl); /* release mapping into kernel space */ |
