From: Nicolas Pitre <nico@cam.org>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: Jon Smirl <jonsmirl@gmail.com>,
Martin Koegler <mkoegler@auto.tuwien.ac.at>,
Git Mailing List <git@vger.kernel.org>
Subject: Re: performance on repack
Date: Tue, 14 Aug 2007 10:52:35 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.0.999.0708141037020.5415@xanadu.home> (raw)
In-Reply-To: <20070814031236.GC27913@spearce.org>
On Mon, 13 Aug 2007, Shawn O. Pearce wrote:
> Jon Smirl <jonsmirl@gmail.com> wrote:
> > This solution was my first thought too. Use the main thread to get
> > everything needed for the object into RAM, then multi-thread the
> > compute bound, in-memory delta search operation. Shared CPU caches
> > might make this very fast.
>
> I have been thinking about doing this, especially now that the
> default window size is much larger. I think the default is up as
> high as 50, which means we'd keep that shiny new UltraSPARC T2 busy.
> Not that I have one... so anyone from Sun is welcome to send me
> one if they want. ;-)
Note that the default of 50 applies to the maximum delta depth, not the
delta search window. And the delta depth limit is costless on the
packing side. I, too, wouldn't mind the UltraSPARC T2 though.
Nicolas
next prev parent reply other threads:[~2007-08-14 14:52 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-11 21:12 performance on repack Jon Smirl
2007-08-11 22:09 ` David Kastrup
2007-08-11 22:34 ` Linus Torvalds
2007-08-11 23:21 ` Jon Smirl
2007-08-12 10:33 ` Martin Koegler
2007-08-12 13:49 ` Jon Smirl
2007-08-14 3:12 ` Shawn O. Pearce
2007-08-14 4:10 ` Jon Smirl
2007-08-14 5:13 ` Shawn O. Pearce
2007-08-14 5:57 ` Jon Smirl
2007-08-14 14:52 ` Nicolas Pitre [this message]
2007-08-14 21:41 ` Nicolas Pitre
2007-08-15 1:20 ` Jon Smirl
2007-08-15 1:59 ` Nicolas Pitre
2007-08-15 5:32 ` Shawn O. Pearce
2007-08-15 15:08 ` Jon Smirl
2007-08-15 17:11 ` Martin Koegler
2007-08-15 18:38 ` Jon Smirl
2007-08-15 19:00 ` Nicolas Pitre
2007-08-15 19:42 ` Jon Smirl
2007-08-16 8:10 ` David Kastrup
2007-08-16 15:34 ` Nicolas Pitre
2007-08-16 16:13 ` Jon Smirl
2007-08-16 16:21 ` Nicolas Pitre
2007-08-15 21:05 ` Nicolas Pitre
2007-08-15 20:49 ` Nicolas Pitre
2007-08-30 4:27 ` Nicolas Pitre
2007-08-30 4:36 ` Nicolas Pitre
2007-08-30 16:17 ` Jon Smirl
2007-09-01 21:54 ` Jon Smirl
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
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.LFD.0.999.0708141037020.5415@xanadu.home \
--to=nico@cam.org \
--cc=git@vger.kernel.org \
--cc=jonsmirl@gmail.com \
--cc=mkoegler@auto.tuwien.ac.at \
--cc=spearce@spearce.org \
/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.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
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 read-only IMAP folder(s) and NNTP newsgroup(s).