Date: Fri, 22 Jul 2005 00:12:03 -0700 From: Lei Sun <lei.sun@gmail.com> To: freebsd-questions@freebsd.org Subject: only see cpu0 working after rebuilding kernel with SMP support Message-ID: <d396fddf05072200121b068cd9@mail.gmail.com>
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Hi,
I wanted to enable the second logical CPU on my P4 HT. and...
Something seems to be strange to me as:
All of the processes are running with CPU0 and none is working with CPU1
---------------------------------------------------------------------------=
------------------------------
last pid: 479; load averages: 0.00, 0.02, 0.03 =20
up
0+00:10:34 00:05:10
21 processes: 1 running, 20 sleeping
CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% id=
le
Mem: 6072K Active, 4748K Inact, 18M Wired, 8000K Buf, 1975M Free
Swap: 4071M Total, 4071M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
437 ls 96 0 6116K 2944K select 0 0:00 0.00% 0.00% sshd
440 root 8 0 3128K 1996K wait 0 0:00 0.00% 0.00% bash
426 root 5 -4 1616K 1212K ttyin 0 0:00 0.00% 0.00% login
434 root 4 0 6136K 2884K sbwait 0 0:00 0.00% 0.00% sshd
438 ls 8 0 3088K 1852K wait 0 0:00 0.00% 0.00% bash
439 ls 8 0 1608K 1284K wait 0 0:00 0.00% 0.00% su
259 root 96 0 1324K 892K select 0 0:00 0.00% 0.00% syslogd
376 root 96 0 3476K 2668K select 0 0:00 0.00% 0.00% sendmai=
l
479 root 96 0 2304K 1572K CPU0 0 0:00 0.00% 0.00% top
392 root 8 0 1364K 1052K nanslp 0 0:00 0.00% 0.00% cron
433 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
432 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
430 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
428 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
431 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
429 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
427 root 5 0 1288K 952K ttyin 0 0:00 0.00% 0.00% getty
370 root 96 0 3384K 2476K select 0 0:00 0.00% 0.00% sshd
380 smmsp 20 0 3356K 2696K pause 0 0:00 0.00% 0.00% sendmai=
l
181 root 20 0 1192K 648K pause 0 0:00 0.00% 0.00% adjkern=
tz
241 root 114 0 516K 356K select 0 0:00 0.00% 0.00% devd
---------------------------------------------------------------------------=
------------------------------
Here is the steps and places I read and followed
1. I followed the custom kernel documents from
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-buil=
ding.html
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-conf=
ig.html
http://www.freebsddiary.org/smp.php
and compiled the custom kernel
and my kernel config:
-------------------------------------------------
...
options SMP
device apic # I/O APIC
...
-------------------------------------------------
2. Then I compiled the custom kernel, and installed it
3. I check the startup output, and found
SMP: AP CPU #1 Launched!
So my question is, how come in top, only cpu0 is working, and no entry for =
cpu1?
Thanks in advance:)
Lei
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