Date: Tue, 12 Feb 2002 10:49:19 -0700 (MST) From: "M. Warner Losh" <imp@village.org> To: luigi@FreeBSD.org Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/etc rc.diskless1 rc.diskless2 Message-ID: <20020212.104919.44519708.imp@village.org> In-Reply-To: <20020212094655.A38901@iguana.icir.org> References: <200202121725.g1CHPBM63468@freefall.freebsd.org> <20020212.103847.130623407.imp@village.org> <20020212094655.A38901@iguana.icir.org>
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In message: <20020212094655.A38901@iguana.icir.org>
Luigi Rizzo <luigi@FreeBSD.org> writes:
: On Tue, Feb 12, 2002 at 10:38:47AM -0700, M. Warner Losh wrote:
: > In message: <200202121725.g1CHPBM63468@freefall.freebsd.org>
: > Luigi Rizzo <luigi@FreeBSD.org> writes:
: > : rc.diskless1:
: > : Use -b 4096 -f 1024 as mount parameters, and increase the
: > : Use -b 4096 -f 1024 as mount parameters, move "mount -a"
: >
: > This is a really *******BAD******* idea. 4:1 ratio leads to
: > mysterious hangs on boot in our systems (as often as 1 in 3 on some
:
: Strange, i did not experience problems with that in our labs.
We've found that on some products we see this all the time, while on
others we rarely if ever see the problem. We have literally gone back
and forth from 4:1 to 8:1 and seen a huge increase in reliability.
: Anyways, I just meant to restore the original default pre 4.5, was it
: 8k/1k or 4k/512 ? I'd use whatever you are most confident with...
: but not the recent 16k/2k, which is really wasting a lot of space
: on partitions such as /etc with plenty of very small files.
We use 8k/1k for our stuff so that's what I have the most experience
with, but my experiments with 4k/512 have shown than it too seems to
work better than 4k/1k. I agree that 16k/2k is way too wasteful.
Warner
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