Date: Fri, 6 Dec 2002 22:44:31 +0100 From: Morten Rodal <morten@rodal.no> To: Craig Boston <craig@meoqu.gank.org> Subject: Re: SMP users: Please test (possible bug in select()) Message-ID: <20021206214431.GA1383@slurp.rodal.no> In-Reply-To: <1039207405.306.15.camel@owen1492.it.oot> References: <1039207405.306.15.camel@owen1492.it.oot>
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On Fri, Dec 06, 2002 at 02:43:26PM -0600, Craig Boston wrote:
> If anyone has an SMP system that they don't mind an ungraceful shutdown
> for a good cause, please compile the following program:
>
[snip]
>
> Start off by running one copy of this program PER CPU (i.e. run it twice
> on a dual CPU box), and let it run for 5 minutes or so. If your system
> is still up and running, run two more copies and wait another 5
> minutes. Bonus points for running from within X.
>
Program has been running for about 5 minutes, then I added two more :)
And I can safely collect the bonus points .. woohoo.
From top:
last pid: 1495; load averages: 4.51, 3.99, 2.75 up 0+02:51:00 22:43:08
69 processes: 6 running, 63 sleeping
CPU states: 26.3% user, 0.0% nice, 73.2% system, 0.6% interrupt, 0.0% idle
Mem: 113M Active, 268M Inact, 33M Wired, 21M Cache, 54M Buf, 1076K Free
Swap: 881M Total, 881M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
1422 morten 64 0 884K 332K RUN 1 5:33 41.75% 41.75% smp
1360 morten 64 0 884K 316K RUN 0 10:21 38.87% 38.87% smp
1421 morten 64 0 884K 332K CPU1 1 5:40 38.72% 38.72% smp
1359 morten 64 0 884K 316K RUN 0 10:23 38.09% 38.09% smp
1300 morten 64 0 48020K 41540K RUN 1 1:42 23.34% 23.34% mozilla-bin
1275 morten 2 0 15232K 8188K poll 1 1:37 5.76% 5.76% mplayer
209 root 2 0 307M 75288K select 1 5:43 3.12% 3.12% XFree86
From dmesg:
FreeBSD 4.7-STABLE #3: Tue Dec 3 16:55:36 CET 2002
root@slurp.rodal.no:/usr/obj/usr/src/sys/slurp
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (300.68-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x634 Stepping = 4
Features=0x80fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,MMX>
real memory = 469749760 (458740K bytes)
avail memory = 452100096 (441504K bytes)
Programming 24 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
--
Morten Rodal
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