From: Antoine Pelisse <apelisse@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git <git@vger.kernel.org>
Subject: Re: [PATCH v2] log: grep author/committer using mailmap
Date: Fri, 28 Dec 2012 19:00:50 +0100 [thread overview]
Message-ID: <CALWbr2y63L0-ykdUNGqUOb0LhG=vpXGRcb1KkvssEZmKFJEGeQ@mail.gmail.com> (raw)
In-Reply-To: <7vwqw3l49z.fsf@alter.siamese.dyndns.org>
Actually, gprof seems to be unhappy about the number of call to
strbuf_grow() in map_user() (25% of the time spent in map_user() is
spent in strbuf_grow()).
That probably comes from the repeated call to strbuf_addch() when
lowering the email address.
At this point, we are also copying the '\0' for every char we add,
doubling the copy.
This may not be much of a difference, but it seems to be called 15
millions times when running:
$ git log --author='Junio C Hamano' --use-mailmap
Maybe we should come up with another way to lower this email address afterall.
next prev parent reply other threads:[~2012-12-28 18:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-22 16:58 [PATCH 0/2] Mailmap in log improvements Antoine Pelisse
2012-12-22 16:58 ` [PATCH 1/2] log: grep author/committer using mailmap Antoine Pelisse
2012-12-26 19:27 ` Junio C Hamano
2012-12-26 21:12 ` Antoine Pelisse
2012-12-26 21:37 ` Junio C Hamano
2012-12-27 15:31 ` [PATCH v2] " Antoine Pelisse
2012-12-27 18:45 ` Junio C Hamano
2012-12-27 18:48 ` Junio C Hamano
2012-12-28 18:00 ` Antoine Pelisse [this message]
2012-12-28 18:43 ` Junio C Hamano
2012-12-28 20:37 ` Antoine Pelisse
2012-12-22 16:58 ` [PATCH 2/2] log: add log.mailmap configuration option Antoine Pelisse
2012-12-23 4:26 ` Junio C Hamano
2012-12-26 16:14 ` Junio C Hamano
2012-12-26 16:42 ` Antoine Pelisse
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