Date: Mon, 8 Mar 2021 02:03:13 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Kyle Evans <kevans@freebsd.org> Cc: Yasuhiro Kimura <yasu@utahime.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Waiting for bufdaemon Message-ID: <YEVpwXGS5UBA8P44@kib.kiev.ua> In-Reply-To: <CACNAnaEPJftb_1Jg94zpR4AoU5TKEjbXuYcAA0ByUmL0=hPQCg@mail.gmail.com> References: <20210305.160311.867123118349124334.yasu@utahime.org> <YEKYDlPuvn6TL4xs@kib.kiev.ua> <20210306.083323.1112779300812727243.yasu@utahime.org> <20210306005643.45feb56d@bsd64.grem.de> <DDC414A9-108B-43F1-A8FC-1DE22393A386@yahoo.com> <8a549830a3087998c1e2f80a5fb58199@bsdforge.com> <20210306.185955.1096959917131550098.yasu@utahime.org> <CACNAnaEPJftb_1Jg94zpR4AoU5TKEjbXuYcAA0ByUmL0=hPQCg@mail.gmail.com>
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On Sun, Mar 07, 2021 at 02:25:45PM -0600, Kyle Evans wrote: > I'm going to be pedantic here, but note that this isn't a tunable. You > cannot, AFAIK, influence the timecounter chosen with kenv; it has to > be set post-boot via sysctl, and if you're really unlucky it could be > that bufdaemon wedges before you manage to change it (though it seems > unlikely). > > I've had some success with setting it to ACPI-fast in sysctl.conf here. Right, I forgot that timecounter.hardware is not tunable, I thought that it was fixed. https://reviews.freebsd.org/D29122
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