Author: mav
Date: Sun Sep 19 19:51:14 2010
New Revision: 212875
URL: http://svn.freebsd.org/changeset/base/212875
Log:
MFC r196904:
Remove msleep() timeout from g_io_schedule_up/down(). It works fine
without it, saving few percents of CPU on high request rates without
need to rearm callout twice per request.
Modified:
stable/7/sys/geom/geom_io.c
Directory Properties:
stable/7/sys/ (props changed)
stable/7/sys/cddl/contrib/opensolaris/ (props changed)
stable/7/sys/contrib/dev/acpica/ (props changed)
stable/7/sys/contrib/pf/ (props changed)
Modified: stable/7/sys/geom/geom_io.c
==============================================================================
--- stable/7/sys/geom/geom_io.c Sun Sep 19 19:43:05 2010 (r212874)
+++ stable/7/sys/geom/geom_io.c Sun Sep 19 19:51:14 2010 (r212875)
@@ -485,7 +485,7 @@ g_io_schedule_down(struct thread *tp __u
if (bp == NULL) {
CTR0(KTR_GEOM, "g_down going to sleep");
msleep(&g_wait_down, &g_bio_run_down.bio_queue_lock,
- PRIBIO | PDROP, "-", hz/10);
+ PRIBIO | PDROP, "-", 0);
continue;
}
CTR0(KTR_GEOM, "g_down has work to do");
@@ -590,7 +590,7 @@ g_io_schedule_up(struct thread *tp __unu
}
CTR0(KTR_GEOM, "g_up going to sleep");
msleep(&g_wait_up, &g_bio_run_up.bio_queue_lock,
- PRIBIO | PDROP, "-", hz/10);
+ PRIBIO | PDROP, "-", 0);
}
}
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