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do not use the NCQ priority by default; seems it negatively affects 

performance at least with some drives, so this needs better understood first
This commit is contained in:
jdolecek 2017-10-14 13:20:32 +00:00
parent fd181cba14
commit 59fc8a81da
1 changed files with 3 additions and 3 deletions
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6
sys/dev/ata/wd.c
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@ -1,4 +1,4 @@
/* $NetBSD: wd.c,v 1.431 2017/10/14 13:15:14 jdolecek Exp $ */
/* $NetBSD: wd.c,v 1.432 2017/10/14 13:20:32 jdolecek Exp $ */
/*
* Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved.
@ -54,7 +54,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.431 2017/10/14 13:15:14 jdolecek Exp $");
__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.432 2017/10/14 13:20:32 jdolecek Exp $");
#include "opt_ata.h"
#include "opt_wd.h"
@ -2362,7 +2362,7 @@ wd_sysctl_attach(struct wd_softc *wd)
return;
}
wd->drv_ncq_prio = true;
wd->drv_ncq_prio = false;
if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL,
CTLFLAG_READWRITE, CTLTYPE_BOOL, "use_ncq_prio",
SYSCTL_DESCR("use NCQ PRIORITY if supported"),