From: Jeff King <peff@peff.net>
To: Stefan Beller <sbeller@google.com>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
Junio C Hamano <gitster@pobox.com>,
"git@vger.kernel.org" <git@vger.kernel.org>
Subject: Re: Drastic jump in the time required for the test suite
Date: Thu, 20 Oct 2016 17:57:42 -0400 [thread overview]
Message-ID: <20161020215742.b5gzqvd2g6afjgmh@sigill.intra.peff.net> (raw)
In-Reply-To: <CAGZ79kZkSwbiYD=G_nSZW8_qeb2q+AOsqYipmEigTN1aNYPiEw@mail.gmail.com>
On Thu, Oct 20, 2016 at 02:53:36PM -0700, Stefan Beller wrote:
> >> That said I really like the idea of having a helper that would eliminate the cat
> >> for you, e.g. :
> >>
> >> git_test_helper_equal_stdin_or_diff_and_die -C super_repo status
> >> --porcelain=v2 --branch --untracked-files=all <<-EOF
> >> 1 A. N... 000000 100644 100644 $_z40 $HMOD .gitmodules
> >> 1 AM S.M. 000000 160000 160000 $_z40 $HSUP sub1
> >> EOF
> >
> > I think that helper still ends up using "cat" and "diff" under the hood,
>
> I assumed that helper being a C program, that only needs to fork once
> for the actual git call and then it sits idle to compare the exact output
> from stdout to its stdin.
Ah, I see. I thought you meant a shell helper. A C helper does drop 2
forks down to 1, but it would be nice if we could drop it to 0.
-Peff
next prev parent reply other threads:[~2016-10-20 21:57 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 [this message]
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
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