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Add dealloccnt to list of things to be considered in the stetson-harrison 

decision making algorithm for flushing a wapbl transation.
This commit is contained in:
pooka 2009-10-01 12:28:34 +00:00
parent 65817d0cbb
commit bea18fb702
1 changed files with 9 additions and 5 deletions
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14
sys/kern/vfs_wapbl.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_wapbl.c,v 1.27 2009/10/01 07:42:45 pooka Exp $ */
/* $NetBSD: vfs_wapbl.c,v 1.28 2009/10/01 12:28:34 pooka Exp $ */
/*-
* Copyright (c) 2003, 2008, 2009 The NetBSD Foundation, Inc.
@ -36,7 +36,7 @@
#define WAPBL_INTERNAL
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_wapbl.c,v 1.27 2009/10/01 07:42:45 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_wapbl.c,v 1.28 2009/10/01 12:28:34 pooka Exp $");
#include <sys/param.h>
@ -784,16 +784,20 @@ wapbl_begin(struct wapbl *wl, const char *file, int line)
wl->wl_bufbytes_max / 2) ||
((wl->wl_bufcount + (lockcount * 10)) >
wl->wl_bufcount_max / 2) ||
(wapbl_transaction_len(wl) > wl->wl_circ_size / 2);
(wapbl_transaction_len(wl) > wl->wl_circ_size / 2) ||
(wl->wl_dealloccnt >=
(wl->wl_dealloclim - (wl->wl_dealloclim >> 8)));
mutex_exit(&wl->wl_mtx);
if (doflush) {
WAPBL_PRINTF(WAPBL_PRINT_FLUSH,
("force flush lockcnt=%d bufbytes=%zu "
"(max=%zu) bufcount=%zu (max=%zu)\n",
"(max=%zu) bufcount=%zu (max=%zu) "
"dealloccnt %d (lim=%d)\n",
lockcount, wl->wl_bufbytes,
wl->wl_bufbytes_max, wl->wl_bufcount,
wl->wl_bufcount_max));
wl->wl_bufcount_max,
wl->wl_dealloccnt, wl->wl_dealloclim));
}
if (doflush) {