From: Duy Nguyen <pclouds@gmail.com>
To: Eric Wong <e@80x24.org>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
Junio C Hamano <gitster@pobox.com>,
Git Mailing List <git@vger.kernel.org>
Subject: Re: Drastic jump in the time required for the test suite
Date: Fri, 28 Oct 2016 13:38:32 +0700 [thread overview]
Message-ID: <CACsJy8ABaHxhrWke3Vu9Z9FSc5GC1LmupHRu4yS6=SFcp6eVHg@mail.gmail.com> (raw)
In-Reply-To: <20161027204129.GA21619@starla>
On Fri, Oct 28, 2016 at 3:41 AM, Eric Wong <e@80x24.org> wrote:
> Johannes Schindelin <Johannes.Schindelin@gmx.de> wrote:
>> I know you are a fan of testing things thoroughly in the test suite, but I
>> have to say that it is getting out of hand, in particular due to our
>> over-use of shell script idioms (which really only run fast on Linux, not
>> a good idea for a portable software).
>
> How much effort would it take to optimize a /bin/sh?
>
> Would replacing uses of fork+execve posix_spawn be fast and
> portable enough?
>
> Even on Linux, performance sucks for me. I've been hoping dash
> can use posix_spawn (or using vfork directly) to see if that can
> help things.
Busybox hush uses vfork.on no-mmu builds. You could try it out. I
don't know how complete it is though.
--
Duy
prev parent reply other threads:[~2016-10-28 6:39 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-19 9:18 Drastic jump in the time required for the test suite Johannes Schindelin
2016-10-19 17:32 ` Junio C Hamano
2016-10-19 20:56 ` Jeff King
2016-10-20 10:50 ` Johannes Schindelin
2016-10-20 11:39 ` Jeff King
2016-10-20 19:54 ` Stefan Beller
2016-10-20 21:38 ` Jeff King
2016-10-20 21:53 ` Stefan Beller
2016-10-20 21:57 ` Jeff King
2016-10-20 21:56 ` Jeff King
2016-10-21 5:27 ` Johannes Sixt
2016-10-21 8:24 ` Jeff King
2016-10-20 10:17 ` Johannes Schindelin
2016-10-20 12:31 ` Jeff King
2016-10-20 16:30 ` Stefan Beller
2016-10-20 21:00 ` Jeff King
2016-10-20 23:20 ` Jeff King
2016-10-20 20:38 ` Johannes Sixt
2016-10-20 21:03 ` Jeff King
2016-10-20 20:40 ` Dennis Kaarsemaker
2016-10-21 11:03 ` Duy Nguyen
2016-10-20 16:16 ` Junio C Hamano
2016-10-20 17:13 ` Matthieu Moy
2016-10-20 11:02 ` Duy Nguyen
2016-10-20 16:40 ` René Scharfe
2016-10-21 10:59 ` Duy Nguyen
2016-10-21 20:28 ` René Scharfe
2016-10-21 13:10 ` Matthieu Moy
2016-10-21 19:57 ` René Scharfe
2016-10-27 20:41 ` Eric Wong
2016-10-28 6:38 ` Duy Nguyen [this message]
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