linux-kernel - Re: [PATCH v2] setlocalversion: work around "git describe" performance

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Message-ID: <20241113203831.lyhmd7ssimejrxn5@jpoimboe>
Date: Wed, 13 Nov 2024 12:38:31 -0800
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: Masahiro Yamada <masahiroy@...nel.org>, linux-kernel@...r.kernel.org,
	Jeff King <peff@...f.net>
Subject: Re: [PATCH v2] setlocalversion: work around "git describe"
 performance

On Tue, Nov 12, 2024 at 10:05:00PM +0100, Rasmus Villemoes wrote:
> Contrary to expectations, passing a single candidate tag to "git
> describe" is slower than not passing any --match options.
> 
>   $ time git describe --debug
>   ...
>   traversed 10619 commits
>   ...
>   v6.12-rc5-63-g0fc810ae3ae1
> 
>   real    0m0.169s
> 
>   $ time git describe --match=v6.12-rc5 --debug
>   ...
>   traversed 1310024 commits
>   v6.12-rc5-63-g0fc810ae3ae1
> 
>   real    0m1.281s

Works for me, thanks!

Tested-by: Josh Poimboeuf <jpoimboe@...nel.org>

-- 
Josh