[WBEL-users] Re: Hyperthreading not enabled in WB kernels?

Johnny Hughes mailing-lists@hughesjr.com
Thu, 29 Apr 2004 06:02:42 -0500


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On Wed, 2004-04-28 at 23:49, Vincent.Raffensberger@dtn.com wrote:

> That's interesting.  I looked into my old messages from the initial
> install and found the same thing, so it's probably not the kernel
> version.
> I have a couple of these boxes, so I'll swap the disk into another one
> and see what happens.  It may just be an issue with that particular
> system.
> What does your /proc/cpuinfo say?
> 
> Thanks.


I also have a dual xeon processor box with hyperthreading and it show
all 4 cpus (when using the cat /proc/cpuinfo and dmesg).  Here is the
output of dmesg | grep -i cpu:

# dmesg | grep -i cpu

..... CPU clock speed is 2796.9558 MHz.
cpu: 0, clocks: 998307, slice: 199661
CPU0<T0:998304,T1:798640,D:3,S:199661,C:998307>
cpu: 1, clocks: 998307, slice: 199661
cpu: 2, clocks: 998307, slice: 199661
cpu: 3, clocks: 998307, slice: 199661
CPU1<T0:998304,T1:598976,D:6,S:199661,C:998307>
CPU2<T0:998304,T1:399312,D:9,S:199661,C:998307>
CPU3<T0:998304,T1:199648,D:12,S:199661,C:998307>
cpu_sibling_map[0] = 2
cpu_sibling_map[1] = 3
cpu_sibling_map[2] = 0
cpu_sibling_map[3] = 1
mapping CPU#0's runqueue to CPU#2's runqueue.
mapping CPU#1's runqueue to CPU#3's runqueue.
Starting migration thread for cpu 0
Starting migration thread for cpu 1
Starting migration thread for cpu 2
Starting migration thread for cpu 3

-Johnny Hughes




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On Wed, 2004-04-28 at 23:49, Vincent.Raffensberger@dtn.com wrote:
<BLOCKQUOTE TYPE=CITE>
    <FONT COLOR="#737373" SIZE="2"><I>That's interesting. &nbsp;I looked into my old messages from the initial install and found the same thing, so it's probably not the kernel version.<BR>
    I have a couple of these boxes, so I'll swap the disk into another one and see what happens. &nbsp;It may just be an issue with that particular system.<BR>
    What does your /proc/cpuinfo say?</FONT><BR>
    <FONT COLOR="#737373"></FONT><BR>
    <FONT COLOR="#737373" SIZE="2">Thanks.</I></FONT>
</BLOCKQUOTE>
<BR>
I also have a dual xeon processor box with hyperthreading and it show all 4 cpus (when using the <B>cat /proc/cpuinfo </B>and <B>dmesg</B>).&nbsp; Here is the output of <B>dmesg | grep -i cpu</B>:<BR>
<BR>
<B># dmesg | grep -i cpu<BR>
</B><BR>
..... CPU clock speed is 2796.9558 MHz.<BR>
cpu: 0, clocks: 998307, slice: 199661<BR>
CPU0&lt;T0:998304,T1:798640,D:3,S:199661,C:998307&gt;<BR>
cpu: 1, clocks: 998307, slice: 199661<BR>
cpu: 2, clocks: 998307, slice: 199661<BR>
cpu: 3, clocks: 998307, slice: 199661<BR>
CPU1&lt;T0:998304,T1:598976,D:6,S:199661,C:998307&gt;<BR>
CPU2&lt;T0:998304,T1:399312,D:9,S:199661,C:998307&gt;<BR>
CPU3&lt;T0:998304,T1:199648,D:12,S:199661,C:998307&gt;<BR>
cpu_sibling_map[0] = 2<BR>
cpu_sibling_map[1] = 3<BR>
cpu_sibling_map[2] = 0<BR>
cpu_sibling_map[3] = 1<BR>
mapping CPU#0's runqueue to CPU#2's runqueue.<BR>
mapping CPU#1's runqueue to CPU#3's runqueue.<BR>
Starting migration thread for cpu 0<BR>
Starting migration thread for cpu 1<BR>
Starting migration thread for cpu 2<BR>
Starting migration thread for cpu 3<BR>
<BR>
-Johnny Hughes<BR>
<BR>
<BR>
<BR>
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