From: "Russ Cox" <rsc@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti/fmtarenas approximate duration?
Date: Mon, 23 Jun 2003 23:00:34 -0400 [thread overview]
Message-ID: <d30ede3597380fd188cf6ed641286322@plan9.bell-labs.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0306231903350.17223-100000@fbsd.cpsc.ucalgary.ca>
> from other sources i understand that venti/fmtarenas has been observed to
> take the better part of a night to complete :) how are you solving this
> for the future plan9 install disk, which will have the option to choose
> between kfs and fossil?
I turned DMA on by default. That won't help if you've got
an unknown controller, but otherwise it will help quite a bit.
The fact is that zeroing the disk takes time either way
(though it takes a lot longer without DMA), so if you want
to do that you have to be ready for it.
Maybe we should change Venti to zero the disk as it goes
along, keeping a ``have-zeroed-this-far'' field in the
various super blocks.
Russ
next prev parent reply other threads:[~2003-06-24 3:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-23 23:04 andrey mirtchovski
2003-06-23 23:14 ` Russ Cox
2003-06-24 1:10 ` andrey mirtchovski
2003-06-24 1:31 ` jmk
2003-06-24 1:42 ` andrey mirtchovski
2003-06-24 1:54 ` jmk
2003-06-24 2:25 ` andrey mirtchovski
2003-06-24 3:00 ` Russ Cox [this message]
2003-06-25 7:55 ` Fco.J.Ballesteros, nemo
2003-06-25 7:53 ` Lucio De Re
2003-06-25 8:07 ` Fco.J.Ballesteros, nemo
2003-06-25 8:04 ` Lucio De Re
2003-06-25 9:38 ` Fco.J.Ballesteros, nemo
2003-06-25 10:16 ` Lucio De Re
2003-06-24 14:36 ` Sape Mullender
2003-06-24 14:43 ` andrey mirtchovski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=d30ede3597380fd188cf6ed641286322@plan9.bell-labs.com \
--to=rsc@plan9.bell-labs.com \
--cc=9fans@cse.psu.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).