Date: Thu, 17 Jun 2021 11:31:11 +0200 From: Gary Jennejohn <gljennjohn@gmail.com> To: Alexey Dokuchaev <danfe@freebsd.org> Cc: Warner Losh <imp@freebsd.org>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: 0a99422970d7 - main - Move mips and arm to 1000Hz by default. Message-ID: <20210617093111.5a537750@ernst.home> In-Reply-To: <YMsT7mfByZa5765c@FreeBSD.org> References: <202106170201.15H215Z6078742@gitrepo.freebsd.org> <YMsT7mfByZa5765c@FreeBSD.org>
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On Thu, 17 Jun 2021 09:20:46 +0000 Alexey Dokuchaev <danfe@freebsd.org> wrote: > On Thu, Jun 17, 2021 at 02:01:05AM +0000, Warner Losh wrote: > > commit 0a99422970d7fbdb1e17724339a8dc37082f3431 > > > > Move mips and arm to 1000Hz by default. > > > > armv6 and armv7 systems already were 1000Hz. The other armv5 were a > > mix of 100 and 1000. This changes them to 1000. Should there be > > issues, we can add options HZ=100 to the systems that have bad > > performance at the drop of a hat. > > Do we have this 1000Hz vs. 100Hz thing documented somewhere for those > who are thinking about tuning it? There are various "optimization" > howto's floating on the Internet here and there which recommend this > change, so it would be nice to have some definitive documentation on > the subject, e.g. in our Handbook or Wiki. > It's discussed in /sys/conf/NOTES, but most users probably wouldn't think about looking there. An entry in the Handbook or Wiki could be useful. -- Gary Jennejohn
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