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From: Eric Sunshine <>
To: Andreas Schwab <>
Cc: Andreas Hasenack <>,
Subject: Re: /proc/cpuinfo regexp fails on s390x
Date: Tue, 22 Nov 2022 18:50:26 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <87v8n6o9du.fsf@igel.home>

On Tue, Nov 22, 2022 at 6:37 PM Andreas Schwab <> wrote:
> On Nov 22 2022, Andreas Hasenack wrote:
> > /^processor[\s\d]*:/
> > or something else.
> Something else.

Yes, that works too and was (I'm pretty sure) considered during
development. The reason /proc/cpu was chosen over `getconf` was that
opening & reading /proc/cpu should be faster since it doesn't involve
spawning a process. If we did use `getconf`, we'd have to be careful
to degrade gracefully if `getconf` isn't available or if the
configuration parameter (i.e. "_NPROCESSORS_ONLN") isn't known on the

That said, the submitted patch[1] is probably good enough for now,
especially since there's talk about possibly removing this code


  reply	other threads:[~2022-11-22 23:51 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-22 17:37 /proc/cpuinfo regexp fails on s390x Andreas Hasenack
2022-11-22 17:57 ` Eric Sunshine
2022-11-22 18:04   ` Andreas Hasenack
2022-11-22 18:13     ` Eric Sunshine
2022-11-22 18:42       ` Andreas Hasenack
2022-11-22 19:39         ` Eric Sunshine
2022-11-22 23:30 ` Andreas Schwab
2022-11-22 23:50   ` Eric Sunshine [this message]
2022-11-23  9:27     ` Andreas Schwab
2022-11-23 19:10       ` Eric Sunshine

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