From: "H. Peter Anvin" <hpa@zytor.com>
To: Jakub Narebski <jnareb@gmail.com>
Cc: Christian Couder <christian.couder@gmail.com>,
Christian Couder <chriscool@tuxfamily.org>,
Junio C Hamano <gitster@pobox.com>,
git@vger.kernel.org, Sam Vilain <sam@vilain.net>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH v3 0/3] automatically skip away from broken commits
Date: Sat, 13 Jun 2009 12:57:38 -0700 [thread overview]
Message-ID: <4A3404B2.5080700@zytor.com> (raw)
In-Reply-To: <m3r5xo2ajc.fsf@localhost.localdomain>
Jakub Narebski wrote:
>
> Why not borrow one of algorithms, e.g. taus[1] from GSL (GNU
> Scientific Library)?
>
> If I understand "Random Number Generator Performance" chapter in GSL
> Manual it is of comparable performance of the above BSD `rand`
> generator, and is of simulation quality.
>
> [1] maximally equidistributed combined Tausworthe generator by L'Ecuyer
>
Interesting paper (the algorithm is on page 8):
http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=F2BD39FF5C24221B424E12D9ED4E68B7?doi=10.1.1.43.4155&rep=rep1&type=pdf
The reason I suggested SHA-1 is because we already have SHA-1 code
involved (in fact, we even have a bunch of precalculated SHA-1s
available to us) and performance matters not one iota in this application.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2009-06-13 19:58 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-06 4:41 [PATCH v3 0/3] automatically skip away from broken commits Christian Couder
2009-06-06 4:41 ` [PATCH v3 1/3] bisect: add parameters to "filter_skipped" Christian Couder
2009-06-06 4:41 ` [PATCH v3 2/3] bisect: when skipping, choose a commit away from a skipped commit Christian Couder
2009-06-06 4:41 ` [PATCH v3 3/3] t6030: test skipping away from an already " Christian Couder
2009-06-06 19:51 ` [PATCH v3 0/3] automatically skip away from broken commits Junio C Hamano
2009-06-07 7:32 ` Christian Couder
2009-06-08 6:06 ` H. Peter Anvin
2009-06-08 7:25 ` Junio C Hamano
2009-06-08 15:51 ` H. Peter Anvin
2009-06-08 21:02 ` Junio C Hamano
2009-06-08 21:10 ` H. Peter Anvin
2009-06-09 4:24 ` Christian Couder
2009-06-09 10:02 ` Jakub Narebski
2009-06-09 15:11 ` H. Peter Anvin
2009-06-09 21:55 ` Jakub Narebski
2009-06-09 22:54 ` H. Peter Anvin
2009-06-09 12:26 ` Christian Couder
2009-06-09 15:25 ` H. Peter Anvin
2009-06-09 18:35 ` Junio C Hamano
2009-06-09 18:42 ` H. Peter Anvin
2009-06-09 19:28 ` Christian Couder
2009-06-09 19:32 ` H. Peter Anvin
2009-06-10 8:14 ` Christian Couder
2009-06-09 20:37 ` Junio C Hamano
2009-06-10 19:37 ` Christian Couder
2009-06-10 21:17 ` Junio C Hamano
2009-06-10 22:43 ` H. Peter Anvin
2009-06-11 4:02 ` Christian Couder
2009-06-11 4:43 ` H. Peter Anvin
2009-06-11 5:05 ` H. Peter Anvin
2009-06-12 11:56 ` Christian Couder
2009-06-13 19:03 ` H. Peter Anvin
2009-06-13 19:35 ` Jakub Narebski
2009-06-13 19:57 ` H. Peter Anvin [this message]
2009-06-15 7:59 ` Christian Couder
2009-06-15 13:16 ` H. Peter Anvin
2009-06-13 7:50 ` Christian Couder
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