Date: Tue, 6 Aug 2013 15:23:55 -0400 From: J David <j.david.lists@gmail.com> To: Eric van Gyzen <eric@vangyzen.net> Cc: freebsd-stable@freebsd.org, dave@mischler.com Subject: Re: unexpected idprio 31 behavior on 9.2-BETA2 and 9.2-RC1 Message-ID: <CABXB=RRuEEVeNmyOXP4KabF=9Q31jzxoXMopi1LEqBTE6%2B540A@mail.gmail.com> In-Reply-To: <52013992.4050101@vangyzen.net> References: <1375737316.96778.10.camel@firkin.mischler.com> <520116DE.8030305@vangyzen.net> <52013992.4050101@vangyzen.net>
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On Tue, Aug 6, 2013 at 1:59 PM, Eric van Gyzen <eric@vangyzen.net> wrote: >> on an otherwise idle amd64 system with 4 CPUs. The first command in the >> build.log file: >> >> rm -rf /usr/obj/home/freebsd/tmp >> >> took over three minutes. It should have taken about three /seconds/. >> >> "uptime" reported a load average of around 1.00. >> "top" showed no threads (user or kernel) using CPU. >> "iostat" showed an average of less than 20 tps on ada0. >> "rm" was usually in the RUN state. We are looking at something similar. Would you be able to try to reproduce it using a kernel with: nooptions SCHED_ULE options SCHED_4BSD to see if it makes a difference? It seems to, but the problem is inconsistent enough that I can't be sure. Thanks!
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