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From: Ben Peart <peartben@gmail.com>
To: git@vger.kernel.org
Subject: Re: [PATCH v13 11/20] index-helper: use watchman to avoid refreshing index with lstat()
Date: Thu, 30 Jun 2016 17:55:20 +0000 (UTC)	[thread overview]
Message-ID: <loom.20160630T192750-125@post.gmane.org> (raw)
In-Reply-To: 1466914464-10358-11-git-send-email-novalis@novalis.org

David Turner <novalis <at> novalis.org> writes:

> 
> Hiding watchman behind index-helper means you need both daemons. You
> can't run watchman alone. Not so good. But on the other hand, 'git'
> binary is not linked to watchman/json libraries, which is good for
> packaging. Core git package will run fine without watchman-related
> packages. If they need watchman, they can install git-index-helper and
> dependencies.
> 

Have you considered splitting index-helper and watchman apart?  Using 
Watchman to not lstat unchanged entries is a huge perf win with very 
large repos.

It would also be interesting to make the Watchman backend replaceable by
using an extensible API.  This has the benefit of not having to link the
'git' binary to the watchman/json libraries.  Is there any pattern 
already in git for accomplishing this?


  reply	other threads:[~2016-06-30 18:01 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-26  4:14 [PATCH v13 01/20] read-cache.c: fix constness of verify_hdr() David Turner
2016-06-26  4:14 ` [PATCH v13 02/20] read-cache: allow to keep mmap'd memory after reading David Turner
2016-06-26  4:14 ` [PATCH v13 03/20] pkt-line: add gentle version of packet_write David Turner
2016-06-26  4:14 ` [PATCH v13 04/20] index-helper: new daemon for caching index and related stuff David Turner
     [not found]   ` <CAFUO74nENapwVsM3CUst9AHqy5LcKTFBCnJxGXPk8E952t+X5Q@mail.gmail.com>
2016-06-27 16:53     ` David Turner
2016-06-30 13:06   ` Johannes Schindelin
2016-06-30 15:04     ` Duy Nguyen
2016-07-02 11:20       ` Johannes Schindelin
2016-07-02 12:43         ` Duy Nguyen
2016-06-26  4:14 ` [PATCH v13 05/20] index-helper: add --strict David Turner
2016-06-26  4:14 ` [PATCH v13 06/20] daemonize(): set a flag before exiting the main process David Turner
2016-06-26  4:14 ` [PATCH v13 07/20] index-helper: add --detach David Turner
2016-06-26  4:14 ` [PATCH v13 08/20] index-helper: log warnings David Turner
2016-06-26  4:14 ` [PATCH v13 09/20] read-cache: add watchman 'WAMA' extension David Turner
2016-06-26  4:14 ` [PATCH v13 10/20] watchman: support watchman to reduce index refresh cost David Turner
2016-06-26  4:14 ` [PATCH v13 11/20] index-helper: use watchman to avoid refreshing index with lstat() David Turner
2016-06-30 17:55   ` Ben Peart [this message]
2016-06-30 19:14     ` Duy Nguyen
2016-06-30 23:54       ` Ben Peart
2016-07-03 12:28         ` Duy Nguyen
2016-07-06 16:54           ` Ben Peart
2016-07-08 16:32             ` Duy Nguyen
2016-07-08 16:39             ` Duy Nguyen
2016-06-26  4:14 ` [PATCH v13 12/20] update-index: enable/disable watchman support David Turner
2016-06-26  4:14 ` [PATCH v13 13/20] unpack-trees: preserve index extensions David Turner
2016-06-26  4:14 ` [PATCH v13 14/20] watchman: add a config option to enable the extension David Turner
2016-06-26  4:14 ` [PATCH v13 15/20] index-helper: kill mode David Turner
2016-06-26  4:14 ` [PATCH v13 16/20] index-helper: don't run if already running David Turner
2016-06-26  4:14 ` [PATCH v13 17/20] index-helper: autorun mode David Turner
2016-06-26  4:14 ` [PATCH v13 18/20] index-helper: optionally automatically run David Turner
2016-06-26  4:14 ` [PATCH v13 19/20] trace: measure where the time is spent in the index-heavy operations David Turner
2016-06-26 12:09   ` [PATCH v13 21/20] unix-socket.c: add stub implementation when unix sockets are not supported Nguyễn Thái Ngọc Duy
2016-06-27 12:14     ` Johannes Schindelin
2016-06-27 16:16       ` Duy Nguyen
2016-06-28 10:06         ` Johannes Schindelin

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