Date: Tue, 30 Nov 2021 07:32:57 -0800 (PST) From: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> To: George Mitchell <george+freebsd@m5p.com> Cc: freebsd-hackers@FreeBSD.org Subject: Re: Call for Foundation-supported Project Ideas Message-ID: <202111301532.1AUFWvc6041330@gndrsh.dnsmgr.net> In-Reply-To: <8a3b989f-cdeb-7371-6d75-caf14a1b6050@m5p.com>
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> On 11/30/21 06:53, Stefan Esser wrote: > > Am 23.11.21 um 23:41 schrieb Joseph Mingrone: > >> Hello FreeBSD community, > >> > >> The Foundation is seeking suggestions for new projects to support. What > >> gaps in the Project are not being addressed by the broader community? > > > > The "new" ULE scheduler has a number of well-known issues, which leads > > to the "old" BSD scheduler giving better performance on many systems > > and loads, but is based on concepts that made sense in pre-SMP times. > > > > [... a collection of highly salient points about both schedulers ...] > > I'll second the recommendation to take a hard look at FreeBSD scheduling > and to consider a brand new one. At the same time, it would be most > helpful if the choice of scheduler were a boot-time tunable. -- George I'll third it, I almost always switch to running the "old" BSD scheduler. > > Regards, STefan -- Rod Grimes rgrimes@freebsd.org
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