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MFC r196904:

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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.
This commit is contained in:
Alexander Motin 2009-11-17 21:43:42 +00:00
parent 8c184a2d26
commit 9c4a609c2d
1 changed files with 2 additions and 2 deletions
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4
sys/geom/geom_io.c
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@ -567,7 +567,7 @@ g_io_schedule_down(struct thread *tp __unused)
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");
@ -672,7 +672,7 @@ g_io_schedule_up(struct thread *tp __unused)
}
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);
}
}