docs/74862: [patch] update tuning(7) man page
Joel Dahl
joel at automatvapen.se
Thu Dec 9 15:50:31 UTC 2004
The following reply was made to PR docs/74862; it has been noted by GNATS.
From: Joel Dahl <joel at automatvapen.se>
To: Giorgos Keramidas <keramida at freebsd.org>
Cc: bug-followup at freebsd.org
Subject: Re: docs/74862: [patch] update tuning(7) man page
Date: Thu, 09 Dec 2004 16:36:34 +0100
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On Thu, 2004-12-09 at 03:54 +0200, Giorgos Keramidas wrote:
> On 2004-12-08 19:39, Joel Dahl <joel at automatvapen.se> wrote:
> > (1) Remove reference to IDE_DELAY. I'm not sure that my memory is
> > correct, but I think that it was removed a long time ago, so I
> > don't see any point in keeping it here.
>
> IDE_DELAY is still used by the wd(4) driver of PC98. Conditional
> inclusion of text in manpages is not possible AFAIK, so we could
> probably reword that part a bit to make it more obvious that it only
> applies to PC98.
New patch attached. Any better?
(I had to check src/sys/pc98/pc98/wd.c for a reference to IDE_DELAY. If
this is an option available for the kernel configuration, why doesn't
NOTES for PC98 mention it?)
>
> > (2) Reword things a bit since SCSI_DELAY defaults to 5000 milliseconds
> > in CURRENT, not 15000.
>
> This part looks good.
>
Thanks. :-)
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Index: tuning.7
===================================================================
RCS file: /home/ncvs/src/share/man/man7/tuning.7,v
retrieving revision 1.69
diff -u -r1.69 tuning.7
--- tuning.7 16 Nov 2004 21:22:09 -0000 1.69
+++ tuning.7 9 Dec 2004 15:17:45 -0000
@@ -814,17 +814,15 @@
by a megabyte or more, leaving more memory available for applications.
.Pp
.Dv SCSI_DELAY
-and
-.Dv IDE_DELAY
may be used to reduce system boot times.
The defaults are fairly high and
-can be responsible for 15+ seconds of delay in the boot process.
+can be responsible for 5+ seconds of delay in the boot process.
Reducing
.Dv SCSI_DELAY
-to 5 seconds usually works (especially with modern drives).
+to something below 5 seconds could work (especially with modern drives).
Reducing
.Dv IDE_DELAY
-also works but you have to be a little more careful.
+(only available for PC98) also works but you have to be a little more careful.
.Pp
There are a number of
.Dv *_CPU
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