From: Alexander Monakov <amonakov@ispras.ru>
To: musl@lists.openwall.com
Subject: Re: [musl] direct coding of asctime_r
Date: Sun, 23 Aug 2020 12:33:30 +0300 (MSK) [thread overview]
Message-ID: <alpine.LNX.2.20.13.2008231227350.12553@monopod.intra.ispras.ru> (raw)
In-Reply-To: <20200823102439.2bbaffb5@inria.fr>
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On Sun, 23 Aug 2020, Jens Gustedt wrote:
> Looking into musl I found that the current implementation is basically
> doing verbatim what the C standard says, namely uses `snprintf` under
> the hood to do the formatting. This has obviously the disadvantage
> that this drags the whole infrastructure that is needed for `snprintf`
> into the executable.
>
> Making some tests, I found that coding `asctime_r` straight forward
> with byte-copying has it shave off about 10k from the final
> executable.
Do I understand correctly that this 10k figure is for an "application"
that does not use stdio at all otherwise? If so, I believe that is a
quite unrealistic test — why would an application use asctime_r but then
avoid use of stdio to do something useful with the result?
Alexander
next prev parent reply other threads:[~2020-08-23 9:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-23 8:24 Jens Gustedt
2020-08-23 9:33 ` Alexander Monakov [this message]
2020-08-23 9:56 ` Jens Gustedt
2020-08-23 11:08 ` Alexander Monakov
2020-08-24 16:14 ` Rich Felker
2020-08-27 9:27 ` Jens Gustedt
2020-08-27 14:03 ` Rich Felker
2020-08-27 14:24 ` Jens Gustedt
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