svn commit: r191135 - head/sys/kern
Konstantin Belousov
kib at FreeBSD.org
Thu Apr 16 09:33:53 UTC 2009
Author: kib
Date: Thu Apr 16 09:33:52 2009
New Revision: 191135
URL: http://svn.freebsd.org/changeset/base/191135
Log:
Export the number of times bufdaemon got help from the normal threads.
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Thu Apr 16 05:52:47 2009 (r191134)
+++ head/sys/kern/vfs_bio.c Thu Apr 16 09:33:52 2009 (r191135)
@@ -202,6 +202,9 @@ SYSCTL_INT(_vfs, OID_AUTO, getnewbufrest
static int flushbufqtarget = 100;
SYSCTL_INT(_vfs, OID_AUTO, flushbufqtarget, CTLFLAG_RW, &flushbufqtarget, 0,
"Amount of work to do in flushbufqueues when helping bufdaemon");
+static long notbufdflashes;
+SYSCTL_LONG(_vfs, OID_AUTO, notbufdflashes, CTLFLAG_RD, ¬bufdflashes, 0,
+ "Number of dirty buffer flushes done by the bufdaemon helpers");
/*
* Wakeup point for bufdaemon, as well as indicator of whether it is already
@@ -2281,6 +2284,7 @@ flushbufqueues(struct vnode *lvp, int qu
else {
bremfree(bp);
bwrite(bp);
+ notbufdflashes++;
}
vn_finished_write(mp);
VOP_UNLOCK(vp, 0);
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