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[NTOSKRNL] Bug fix: lazy write more often.

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CcDirtyPageThreshold is not here to compute when you have to write,
but to know where you have to deny writes.
More commits to come in that direction!

CORE-14235
This commit is contained in:
Pierre Schweitzer 2018-01-23 21:36:19 +01:00
parent 5ec441a867
commit 6ba67b8152
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GPG key ID: 7545556C3D585B0B
1 changed files with 10 additions and 15 deletions
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25
ntoskrnl/cc/view.c
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@ -326,23 +326,18 @@ CciLazyWriter(PVOID Unused)
/* We're not sleeping anymore */
KeClearEvent(&iLazyWriterNotify);
/* Only start operations if above threshold */
DPRINT("TS: %lu, Count: %lu\n", CcDirtyPageThreshold, CcTotalDirtyPages);
if (CcTotalDirtyPages > CcDirtyPageThreshold)
/* Our target is one-eighth of the dirty pages */
Target = CcTotalDirtyPages / 8;
if (Target != 0)
{
/* Our target is one-eighth of the dirty pages */
Target = CcTotalDirtyPages / 8;
if (Target != 0)
{
/* Flush! */
DPRINT("Lazy writer starting (%d)\n", Target);
CcRosFlushDirtyPages(Target, &Count, FALSE, TRUE);
/* Flush! */
DPRINT("Lazy writer starting (%d)\n", Target);
CcRosFlushDirtyPages(Target, &Count, FALSE, TRUE);
/* And update stats */
CcLazyWritePages += Count;
++CcLazyWriteIos;
DPRINT("Lazy writer done (%d)\n", Count);
}
/* And update stats */
CcLazyWritePages += Count;
++CcLazyWriteIos;
DPRINT("Lazy writer done (%d)\n", Count);
}
/* Inform people waiting on us that we're done */