From: Jeff King <peff@peff.net>
To: "René Scharfe" <l.s.r@web.de>
Cc: "Git List" <git@vger.kernel.org>,
"Martin Ågren" <martin.agren@gmail.com>,
"Christian Couder" <christian.couder@gmail.com>,
"Junio C Hamano" <gitster@pobox.com>
Subject: Re: [PATCH v2 1/9] commit: avoid allocation in clear_commit_marks_many()
Date: Wed, 10 Jan 2018 02:54:00 -0500 [thread overview]
Message-ID: <20180110075359.GC16315@sigill.intra.peff.net> (raw)
In-Reply-To: <d37d0e0d-c703-a70c-cf0b-969e54473557@web.de>
On Mon, Dec 25, 2017 at 06:43:37PM +0100, René Scharfe wrote:
> Pass the entries of the commit array directly to clear_commit_marks_1()
> instead of adding them to a commit_list first. The function clears the
> commit and any first parent without allocation; only higher numbered
> parents are added to a list for later treatment. This change extends
> that optimization to clear_commit_marks_many().
It took a bit of head-scratching to see that is indeed what
clear_commit_marks_1 does. I suspect this doesn't make all that big a
difference in practice (after all, we're doing an allocation for each
merge anyway, so allocating for the tips is likely to be a subset), but
it doesn't hurt to do so.
-Peff
next prev parent reply other threads:[~2018-01-10 7:54 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-16 12:12 [PATCH] revision: introduce prepare_revision_walk_extended() René Scharfe
2017-12-17 10:20 ` Martin Ågren
2017-12-18 15:10 ` Jeff King
2017-12-18 19:18 ` René Scharfe
2017-12-19 11:49 ` Jeff King
2017-12-19 18:33 ` Junio C Hamano
2017-12-20 13:08 ` Jeff King
2017-12-21 18:41 ` René Scharfe
2017-12-24 14:22 ` Jeff King
2017-12-25 17:36 ` René Scharfe
2017-12-25 17:41 ` [PATCH v2 0/9] revision: get rid of the flag leak_pending René Scharfe
2017-12-25 17:43 ` [PATCH v2 1/9] commit: avoid allocation in clear_commit_marks_many() René Scharfe
2018-01-10 7:54 ` Jeff King [this message]
2017-12-25 17:44 ` [PATCH v2 2/9] commit: use clear_commit_marks_many() in remove_redundant() René Scharfe
2017-12-25 17:44 ` [PATCH v2 3/9] ref-filter: use clear_commit_marks_many() in do_merge_filter() René Scharfe
2017-12-25 17:44 ` [PATCH v2 4/9] object: add clear_commit_marks_all() René Scharfe
2018-01-10 7:58 ` Jeff King
2018-01-11 18:57 ` René Scharfe
2018-01-12 15:20 ` Jeff King
2017-12-25 17:45 ` [PATCH v2 5/9] bisect: avoid using the rev_info flag leak_pending René Scharfe
2018-01-10 8:07 ` Jeff King
2018-01-11 18:57 ` René Scharfe
2018-01-12 15:23 ` Jeff King
2017-12-25 17:46 ` [PATCH v2 6/9] bundle: " René Scharfe
2017-12-28 21:13 ` Junio C Hamano
2018-01-10 8:18 ` Jeff King
2017-12-25 17:47 ` [PATCH v2 7/9] checkout: " René Scharfe
2017-12-28 21:24 ` Junio C Hamano
2017-12-25 17:47 ` [PATCH v2 8/9] revision: remove the unused " René Scharfe
2017-12-25 17:48 ` [PATCH v2 9/9] commit: remove unused function clear_commit_marks_for_object_array() René Scharfe
2017-12-28 20:32 ` [PATCH v2 0/9] revision: get rid of the flag leak_pending Junio C Hamano
2018-01-10 8:20 ` Jeff King
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