Re: Git and GCC

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To: <peff@...>

Cc: <nico@...>, <jonsmirl@...>, <dberlin@...>, <harvey.harrison@...>, <ismail@...>, <gcc@...>, <git@...>

Date: Thursday, December 6, 2007 - 11:31 pm

From: Jeff King <peff@peff.net>
Date: Thu, 6 Dec 2007 12:39:47 -0500

quoted text> I tried the threaded repack with pack.threads = 3 on a dual-processor
> machine, and got:
> 
>   time git repack -a -d -f --window=250 --depth=250
> 
>   real    309m59.849s
>   user    377m43.948s
>   sys     8m23.319s
> 
>   -r--r--r-- 1 peff peff  28570088 2007-12-06 10:11 pack-1fa336f33126d762988ed6fc3f44ecbe0209da3c.idx
>   -r--r--r-- 1 peff peff 339922573 2007-12-06 10:11 pack-1fa336f33126d762988ed6fc3f44ecbe0209da3c.pack
> 
> So it is about 5% bigger. What is really disappointing is that we saved
> only about 20% of the time. I didn't sit around watching the stages, but
> my guess is that we spent a long time in the single threaded "writing
> objects" stage with a thrashing delta cache.

If someone can give me a good way to run this test case I can
have my 64-cpu Niagara-2 box crunch on this and see how fast
it goes and how much larger the resulting pack file is.
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Messages in current thread:

Re: Git and GCC, David Miller, (Wed Dec 5, 10:52 pm)

Re: Git and GCC, Johannes Schindelin, (Thu Dec 6, 7:57 am)

Re: Git and GCC, Ismail , (Thu Dec 6, 8:04 am)

Re: Git and GCC, Daniel Berlin, (Wed Dec 5, 11:47 pm)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 12:25 am)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 12:54 am)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 1:04 am)

Re: Git and GCC, David Miller, (Thu Dec 6, 12:20 am)

Re: Git and GCC, Daniel Berlin, (Thu Dec 6, 12:32 am)

Re: Git and GCC, David Miller, (Thu Dec 6, 12:48 am)

Re: Git and GCC, Daniel Berlin, (Thu Dec 6, 1:11 am)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 2:09 am)

Re: Git and GCC, Jon Loeliger, (Thu Dec 6, 3:12 pm)

Re: Git and GCC, Junio C Hamano, (Thu Dec 6, 4:04 pm)

Re: Git and GCC, Junio C Hamano, (Thu Dec 6, 5:02 pm)

Re: Git and GCC, David Kastrup, (Thu Dec 6, 6:26 pm)

[OT] Re: Git and GCC, Randy Dunlap, (Thu Dec 6, 6:38 pm)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 3:39 pm)

Re: Git and GCC, Jakub Narebski, (Thu Dec 6, 8:29 pm)

Re: Git and GCC, NightStrike, (Thu Dec 6, 2:24 pm)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 2:45 pm)

Re: Git and GCC, NightStrike, (Fri Dec 7, 1:36 am)

Re: Git and GCC, Daniel Berlin, (Thu Dec 6, 2:04 pm)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 10:42 pm)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 11:01 pm)

Re: Git and GCC, Jon Smirl, (Fri Dec 7, 12:06 am)

Re: Git and GCC, Linus Torvalds, (Fri Dec 7, 1:21 am)

Re: Git and GCC, Jon Smirl, (Fri Dec 7, 3:08 am)

Re: Git and GCC, Nicolas Pitre, (Fri Dec 7, 3:36 pm)

Re: Git and GCC, Nicolas Pitre, (Fri Dec 7, 12:21 am)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 2:29 pm)

[PATCH] gc --aggressive: make it really aggressive, Johannes Schindelin, (Thu Dec 6, 8:03 am)

Re: [PATCH] gc --aggressive: make it really aggressive, Harvey Harrison, (Thu Dec 6, 11:30 am)

Re: [PATCH] gc --aggressive: make it really aggressive, Linus Torvalds, (Thu Dec 6, 12:19 pm)

Re: [PATCH] gc --aggressive: make it really aggressive, Johannes Schindelin, (Thu Dec 6, 11:56 am)

Re: [PATCH] gc --aggressive: make it really aggressive, Pierre Habouzit, (Thu Dec 6, 10:22 am)

Re: [PATCH] gc --aggressive: make it really aggressive, Johannes Schindelin, (Thu Dec 6, 11:55 am)

Re: [PATCH] gc --aggressive: make it really aggressive, David Kastrup, (Thu Dec 6, 1:05 pm)

Re: [PATCH] gc --aggressive: make it really aggressive, Theodore Tso, (Thu Dec 6, 9:42 am)

Re: [PATCH] gc --aggressive: make it really aggressive, Nicolas Pitre, (Thu Dec 6, 10:15 am)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 3:49 am)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 10:01 am)

Re: Git and GCC, David Brown, (Thu Dec 6, 4:11 am)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 1:15 am)

Re: Git and GCC, Daniel Berlin, (Thu Dec 6, 1:17 am)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 2:47 am)

Re: Git and GCC, Jeff King, (Thu Dec 6, 3:15 am)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 10:18 am)

Re: Git and GCC, Jeff King, (Thu Dec 6, 1:39 pm)

Re: Git and GCC, David Miller, (Thu Dec 6, 11:31 pm)

Re: Git and GCC, Jeff King, (Fri Dec 7, 2:38 am)

Re: Git and GCC, Jon Smirl, (Fri Dec 7, 3:10 am)

Re: Git and GCC, David Miller, (Fri Dec 7, 8:53 am)

Re: Git and GCC, David Miller, (Mon Dec 10, 5:57 am)

Re: Git and GCC, Linus Torvalds, (Fri Dec 7, 1:23 pm)

Re: Git and GCC, David Miller, (Fri Dec 7, 9:55 pm)

Re: Git and GCC, Giovanni Bajo, (Fri Dec 7, 4:26 pm)

Re: Git and GCC, Jakub Narebski, (Fri Dec 7, 6:14 pm)

Re: Git and GCC, Giovanni Bajo, (Fri Dec 7, 7:14 pm)

Re: Git and GCC, Daniel Berlin, (Fri Dec 7, 7:33 pm)

Re: Git and GCC, Johannes Schindelin, (Sat Dec 8, 8:00 am)

Re: Git and GCC, Luke Lu, (Fri Dec 7, 7:04 pm)

Re: Git and GCC, Linus Torvalds, (Thu Dec 6, 2:35 pm)

Re: Git and GCC, Harvey Harrison, (Fri Dec 7, 8:47 pm)

Re: Git and GCC, Gabriel Paubert, (Mon Dec 10, 5:54 am)

Re: Git and GCC, Nicolas Pitre, (Mon Dec 10, 11:35 am)

Re: Git and GCC, Jeff King, (Fri Dec 7, 3:31 am)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 2:55 pm)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 3:08 pm)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 5:39 pm)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 6:08 pm)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 6:22 pm)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 6:30 pm)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 6:44 pm)

Re: Git and GCC, Jon Smirl, (Thu Dec 6, 6:11 pm)

Re: Git and GCC, Nicolas Pitre, (Thu Dec 6, 2:02 pm)

Re: Git and GCC, Jeff King, (Fri Dec 7, 2:50 am)

Re: Git and GCC, Jeff King, (Fri Dec 7, 3:27 am)

Re: Git and GCC, Harvey Harrison, (Thu Dec 6, 12:28 am)


linux-kernel:
Glauber de Oliveira Costa	[PATCH 5/25] [PATCH] native versions for system.h functions
Paul Menage	Re: [RFC][PATCH 6/7] Account for the number of tasks within container
Tejun Heo	[PATCHSET] CUSE: implement CUSE
Al Boldi	Re: CFS review
git:
Ken Pratt	pack operation is thrashing my server
Linus Torvalds	Re: git and time
Michael Witten	Re: Proposed git mv behavioral change
Johannes Schindelin	Re: I'm a total push-over..
openbsd-misc:
GVG GVG	ssh_exchange_identification: Connection closed by remote host
Bertram Scharpf	First install: Grub doesn't find partitions
Chris Bullock	OpenBSD isakmpd and pf vs Cisco PIX or ASA
Axton	Re: rouge IPs / user
linux-fsdevel:
hooanon05	[PATCH 62/67] aufs magic sysrq handler
David Howells	[PATCH 06/17] BLOCK: Move bdev_cache_init() declaration to headerfile [try #2]
Miklos Szeredi	[PATCH] update ctime and mtime for mmaped write
Linus Torvalds	Re: silent semantic changes with reiser4


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Re: Git and GCC

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