Date: Fri, 4 Jan 2008 06:21:04 +1100 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Jeff Roberson <jroberson@chesapeake.net> Cc: freebsd-current@freebsd.org Subject: Re: idle priority scheduling broken in 7.0-BETA4 Message-ID: <20080103192104.GS947@server.vk2pj.dyndns.org> In-Reply-To: <20080102033011.P957@desktop> References: <20071223092332.GJ25002@server.vk2pj.dyndns.org> <476F81AF.7000505@gmail.com> <20080101190607.B957@desktop> <20080102105049.GA903@server.vk2pj.dyndns.org> <20080102033011.P957@desktop>
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On Wed, Jan 02, 2008 at 03:31:34AM -1000, Jeff Roberson wrote:
>ah, I'm sorry. the new line with PRI_FIFO should read PRI_FIFO_BIT. I=20
>tested the patch but not with any idle prio tasks that run forever.
That seems to work and I don't see any problems with it. There were
seven watchdog restarts over about 3/4 hr whilst the system was doing
a buildworld but this is probably not completely unreasonable.
One oddity I noticed is that setiathome (unlike einstein@home) has one
thread that seems to have lost the idle bit (though that thread appears
to just idle). This is equivalent to a process increasing its priority
so I wouldn't have expected it.
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU COMMAND
51503 boinc 171 i31 39944K 33052K RUN 3:43 100.00% setiathome-5.=
27.i
51503 boinc 8 19 39944K 33052K nanslp 3:43 0.00% setiathome-5.2=
7.i3
10 root 171 ki31 0K 8K RUN 2:51 0.00% idle
4 root -8 - 0K 8K - 0:54 0.00% g_down
Let me know if you really want to get boinc working for yourself.
--=20
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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