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From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>
Cc: ofv@wanadoo.es, deng@randomsample.de, mattiase@acm.org,
	emacs-devel@gnu.org, gregory@heytings.org, larsi@gnus.org
Subject: Re: Timings for 'make check' with and without symbols with position
Date: Sat, 26 Feb 2022 18:55:06 +0200	[thread overview]
Message-ID: <83bkytpnyt.fsf@gnu.org> (raw)
In-Reply-To: <YhpXqRZcl/qL1HlZ@ACM> (message from Alan Mackenzie on Sat, 26 Feb 2022 16:39:05 +0000)

> Date: Sat, 26 Feb 2022 16:39:05 +0000
> Cc: David Engster <deng@randomsample.de>, Eli Zaretskii <eliz@gnu.org>,
>   larsi@gnus.org, mattiase@acm.org, gregory@heytings.org,
>   Óscar Fuentes <ofv@wanadoo.es>
> From: Alan Mackenzie <acm@muc.de>
> 
> Short summary: The new build is slower than the old by 12.6%.  perf
> counted 419k samples on the new, 372k samples on the old.
> 
> What is taking the extra time is largely the garbage collection:  I
> filtered perf's output successively for the strings "mark" and "sweep",
> and include those functions with at least 0.1% of the run time.

Thanks.  Any idea why there will be more GC in the new version?  Or
are you saying the number of GC calls was the same, but each GC cycle
took a bit longer?  If so, how does symbols-with-pos affect GC?



  reply	other threads:[~2022-02-26 16:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-26 16:39 Timings for 'make check' with and without symbols with position Alan Mackenzie
2022-02-26 16:55 ` Eli Zaretskii [this message]
2022-02-27 12:15   ` Alan Mackenzie
2022-02-27 12:34     ` Eli Zaretskii
2022-03-01 19:59       ` Alan Mackenzie

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