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From: Junio C Hamano <gitster@pobox.com>
To: Jerry Zhang <jerry@skydio.com>
Cc: Elijah Newren <newren@gmail.com>,
	Git Mailing List <git@vger.kernel.org>,
	Ross Yeager <ross@skydio.com>, Abraham Bachrach <abe@skydio.com>,
	Jerry Zhang <jerryxzha@googlemail.com>,
	Brian Kubisiak <brian.kubisiak@skydio.com>
Subject: Re: [PATCH 1/1] git-apply: Allow simultaneous --cached and --3way options
Date: Mon, 05 Apr 2021 17:10:17 -0700	[thread overview]
Message-ID: <xmqqblas46ja.fsf@gitster.g> (raw)
In-Reply-To: <CAMKO5CuYE1VA2h2zDo-b77WQDgj1LriwifruziPA30Yb7uS=6A@mail.gmail.com> (Jerry Zhang's message of "Mon, 5 Apr 2021 16:29:15 -0700")

Jerry Zhang <jerry@skydio.com> writes:

> Unrelatedly would you have context on why --3way falls back on 3way
> rather than trying 3way first then falling back on apply_fragments if
> blobs don't exist?

Historical accident, following the order in which these features
were invented, plus applying a single patch straight has been faster
than doing a 3-way.

I tend to agree with what you are hinting at, though, as I do not
offhand think of a situation in which a successful 3way merge would
be less correct than a straight patch application, and if the user
explicitly has told us to do "--3way", that is a sign that it is
acceptable to try 3way first even if it costs more cycles.

Those who has been giving "--3way" from inertia would notice if the
performance difference is large enough and may complain, though.

  reply	other threads:[~2021-04-06  0:10 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-03  1:34 [PATCH 0/1] git-apply: Allow simultaneous --cached and --3way options Jerry Zhang
2021-04-03  1:34 ` [PATCH 1/1] " Jerry Zhang
2021-04-03  3:46   ` Elijah Newren
2021-04-03  4:26     ` Junio C Hamano
2021-04-04  1:02       ` Junio C Hamano
2021-04-05 22:12         ` Jerry Zhang
2021-04-05 22:23           ` Junio C Hamano
2021-04-05 23:29             ` Jerry Zhang
2021-04-06  0:10               ` Junio C Hamano [this message]
2021-04-05 22:08     ` Jerry Zhang
2021-04-05 22:19   ` [PATCH V2] " Jerry Zhang
2021-04-05 22:46     ` Junio C Hamano
2021-04-06  2:52       ` Jerry Zhang
2021-04-06  5:52         ` Junio C Hamano
2021-04-06 21:56           ` Jerry Zhang
2021-04-07  2:25             ` Jerry Zhang
2021-04-06  2:49     ` [PATCH v3] git-apply: allow " Jerry Zhang
2021-04-07 18:03       ` [PATCH v4] " Jerry Zhang
2021-04-07 19:00         ` Junio C Hamano
2021-04-08  2:13         ` [PATCH v5] " Jerry Zhang
2021-04-08 13:33           ` Junio C Hamano
2021-04-12 15:45             ` Elijah Newren
2021-04-12 18:26               ` Junio C Hamano
2021-04-12 15:40           ` Elijah Newren
2021-04-12 18:27             ` Junio C Hamano
2021-04-03  3:04 ` [PATCH 0/1] git-apply: Allow " Elijah Newren
2021-04-05 22:05   ` Jerry Zhang
2021-04-03  5:24 ` Bagas Sanjaya
     [not found]   ` <CAMKO5CtiW84E4XjnPRf-yOPp+ua_u07LsAu=BB0YhmP3+3kYiw@mail.gmail.com>
2021-04-03  8:05     ` Bagas Sanjaya

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