From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: git@vger.kernel.org, "Taylor Blau" <me@ttaylorr.com>,
"Derrick Stolee" <dstolee@microsoft.com>,
"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Subject: Re: [PATCH] list-objects: don't queue root trees unless revs->tree_objects is set
Date: Fri, 13 Sep 2019 11:05:14 -0700 [thread overview]
Message-ID: <xmqqftl0dqcl.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20190912223400.GA2580@sigill.intra.peff.net> (Jeff King's message of "Thu, 12 Sep 2019 18:34:00 -0400")
Jeff King <peff@peff.net> writes:
>> Thanks for spotting it. I wonder if it was broken like this forever
>> since the beginning X-<.
>
> Not quite since the beginning; it comes from 8d2dfc49b1
> (process_{tree,blob}: show objects without buffering, 2009-04-10). I
> suspect nobody noticed because the cost for the normal case is really
> just shuffling some pointers around. It's only because it actively works
> against the commit-graph optimizations that it's so expensive there.
Yeah, that is what I meant by "since the beginning" (of
commit-graph, that is).
> I was surprised (and pleased) by how much such a simple thing helped.
Yes, it is very pleasing. Thanks.
next prev parent reply other threads:[~2019-09-13 18:05 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-12 0:04 [PATCH] upload-pack: disable commit graph more gently for shallow traversal Jeff King
2019-09-12 0:18 ` Jeff King
2019-09-12 1:11 ` [PATCH] list-objects: don't queue root trees unless revs->tree_objects is set Jeff King
2019-09-12 1:19 ` Jeff King
2019-09-12 12:31 ` Derrick Stolee
2019-09-12 16:52 ` Junio C Hamano
2019-09-12 22:34 ` Jeff King
2019-09-13 18:05 ` Junio C Hamano [this message]
2019-09-12 2:08 ` [PATCH] upload-pack: disable commit graph more gently for shallow traversal Taylor Blau
2019-09-12 14:03 ` Jeff King
2019-09-12 2:07 ` Taylor Blau
2019-09-12 11:06 ` SZEDER Gábor
2019-09-12 14:01 ` Jeff King
2019-09-12 12:46 ` Derrick Stolee
2019-09-12 13:59 ` Jeff King
2019-09-12 12:23 ` Derrick Stolee
2019-09-12 14:23 ` Jeff King
2019-09-12 19:27 ` Derrick Stolee
2019-09-12 14:41 ` [PATCH v2] upload-pack commit graph segfault fix Jeff King
2019-09-12 14:43 ` Jeff King
2019-09-12 14:44 ` [PATCH v2 1/2] commit-graph: bump DIE_ON_LOAD check to actual load-time Jeff King
2019-09-12 19:30 ` Derrick Stolee
2019-09-12 14:44 ` [PATCH v2 2/2] upload-pack: disable commit graph more gently for shallow traversal Jeff King
2019-09-13 13:26 ` Derrick Stolee
2019-09-12 16:56 ` [PATCH v2] upload-pack commit graph segfault fix Taylor Blau
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