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From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] new arenas from the same disk
Date: Mon, 19 Dec 2005 10:41:21 -0500	[thread overview]
Message-ID: <ee9e417a0512190741m321d6517jf7079080bf28b8c7@mail.gmail.com> (raw)
In-Reply-To: <51EFFEA4-410B-4ED8-99CF-5ED71211E0AF@lanl.gov>

> ah, i have no extra partition to use as tmp for buildindex. i've done
> a 'fmtindex -a' for now.
>
> the index is now 3.3% of the arenas space. it's at the lower end, but
> it should be fine, right?

that's fine.  venti will print errors when the index fills.

> something that's puzzling me -- can arena sizes be increased to fit a
> modern dvd? would venti benefit from this?

there's nothing wrong with writing multiple arenas to a dvd,
so if your arena size is 500M, you can just write nine of them.

venti mostly doesn't care about the size of the arena.
the total number of arenas determines some of the
memory footprint (two disk blocks per arena) but
even that is usually pretty small (one megabyte per
64 arenas assuming 8k blocks).

russ


  reply	other threads:[~2005-12-19 15:41 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-17 21:03 andrey mirtchovski
2005-12-17 21:08 ` Russ Cox
2005-12-19 15:28   ` andrey mirtchovski
2005-12-19 15:41     ` Russ Cox [this message]
2005-12-19 15:41       ` Russ Cox

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