From: Charles Forsyth <forsyth@terzarima.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] truncation via wstat on ken's fs
Date: Mon, 18 Oct 2004 09:36:05 +0100 [thread overview]
Message-ID: <2d26e403df2c03ed8e41e93d4bc64b2d@terzarima.net> (raw)
In-Reply-To: <33b92a9c2d6b8da64f55409b1d7c1e76@collyer.net>
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a bit further down in the same code is the real need for BSLOP:
some pesky `--' in the wrong place, but i digress.
even with the worm, it might depend how often files are created
and destroyed between dumps (eg, big mailboxes rewritten),
and meta-data writes are often forced through to the device i think.
it really depends how accurate the comment is, and whether it does
indeed make any detectable difference now!
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From: geoff@collyer.net
To: 9fans@cse.psu.edu
Subject: Re: [9fans] truncation via wstat on ken's fs
Date: Mon, 18 Oct 2004 01:24:04 -0700
Message-ID: <33b92a9c2d6b8da64f55409b1d7c1e76@collyer.net>
I was just looking at that very comment.
It shouldn't matter for WORMs, since blocks are never reused. I
wonder how much it matters for other file systems, given that one
would expect to be serving from RAM cache most of the time. I note
that fossil seems to just free the blocks in forward order.
next prev parent reply other threads:[~2004-10-18 8:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-17 11:05 geoff
2004-10-17 11:18 ` Brantley Coile
2004-10-17 17:01 ` Russ Cox
2004-10-18 0:43 ` geoff
2004-10-18 8:03 ` Charles Forsyth
2004-10-18 8:24 ` geoff
2004-10-18 8:36 ` Charles Forsyth [this message]
2004-10-18 8:38 ` geoff
2004-10-17 17:35 ` boyd, rounin
2004-10-17 13:19 Aharon Robbins
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