Date: Thu, 5 Apr 2018 12:55:14 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Peter <pmc@citylink.dinoex.sub.org>, freebsd-stable@FreeBSD.ORG Subject: Re: kern.sched.quantum: Creepy, sadistic scheduler Message-ID: <5AC5BA42.1010006@grosbein.net> In-Reply-To: <pa2mnq$6kj$1@oper.dinoex.de> References: <pa17m7$82t$1@oper.dinoex.de> <9FDC510B-49D0-4722-B695-6CD38CA20D4A@gmail.com> <8cfdb8a3-86a0-17ba-1e41-ff1912a30ee9@m5p.com> <pa2mnq$6kj$1@oper.dinoex.de>
next in thread | previous in thread | raw e-mail | index | archive | help
04.04.2018 21:16, Peter wrote: > // With nCPU compute-bound processes running, with SCHED_ULE, any other > // process that is interactive (which to me means frequently waiting for > // I/O) gets ABYSMAL performance -- over an order of magnitude worse > // than it gets with SCHED_4BSD under the same conditions. -- > https://lists.freebsd.org/pipermail/freebsd-stable/2011-December/064984.html > > And this describes quite exactly what I perceive. > Now, I would like to ask: what has been done about this issue? I see no reasons to use SHED_ULE for such single core systems and use SCHED_BSD.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5AC5BA42.1010006>