From: Mark Geisert <mark@maxrnd.com>
To: cygwin-developers@cygwin.com
Subject: Re: load average calculation failing
Date: Tue, 10 May 2022 01:21:43 -0700 [thread overview]
Message-ID: <f4685564-75a5-efc4-cf6f-58868abc6339@maxrnd.com> (raw)
In-Reply-To: <fdbc47d6-27e1-73ac-af59-745ca1bb5283@dronecode.org.uk>
Jon Turney wrote:
> On 08/05/2022 08:01, Mark Geisert wrote:
>> Mark Geisert wrote (on the main Cygwin mailing list):
>>> I've recently noticed that the 'xload' I routinely run shows zero load even
>>> with compute-bound processes running. This is on both Cygwin pre-3.4.0 as well
>>> as 3.3.4. A test program, shown below, indicates that getloadavg() is
>>> returning with 0 status, i.e. not an error but no elems
>>> of the passed-in array updated.
>>>
>
> One other thing I forgot to mention: xload doesn't call getloadavg(), it directly
> uses the PDH interface, see:
>
> https://gitlab.freedesktop.org/xorg/app/xload/-/blob/master/get_load.c#L71
Ah, I did notice xload on the list of pdh.dll users at some point, thanks.
And thanks explicitly for the pointer to your github-hosted wmi-loadavg.cc.
That has indeed been very helpful in poking around this issue.
Cheers,
..mark
prev parent reply other threads:[~2022-05-10 8:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.BSF.4.63.2205051618470.42373@m0.truegem.net>
2022-05-08 7:01 ` Mark Geisert
[not found] ` <223aa826-7bf9-281a-aed8-e16349de5b96@dronecode.org.uk>
2022-05-09 8:45 ` Corinna Vinschen
2022-05-09 8:53 ` Corinna Vinschen
2022-05-10 8:34 ` Mark Geisert
2022-05-10 13:37 ` Jon Turney
2022-05-11 23:40 ` load average calculation failing -- fixed by Windows update Mark Geisert
2022-05-12 8:17 ` Corinna Vinschen
2022-05-12 8:24 ` Mark Geisert
2022-05-12 8:43 ` Corinna Vinschen
2022-05-12 9:48 ` Corinna Vinschen
2022-05-13 10:34 ` Jon Turney
2022-05-13 11:04 ` Corinna Vinschen
2022-05-13 11:05 ` Corinna Vinschen
2022-05-16 5:25 ` load average calculation imperfections Mark Geisert
2022-05-16 16:49 ` Jon Turney
2022-05-17 5:39 ` Mark Geisert
2022-05-17 14:48 ` load average calculation failing -- fixed by Windows update Jon Turney
2022-05-17 19:48 ` Mark Geisert
2022-05-09 11:29 ` load average calculation failing Jon Turney
2022-05-10 8:21 ` Mark Geisert [this message]
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