Hello,

After cvsup to 5.4-P7 and compiling the Kernel with SMP, PAE, acpi options,
I noticed when getting back in that only CPU2 is being used.

I checked dmesg:

impala# dmesg |grep CPU
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.01-MHz 686-class CPU)
Hyperthreading: 2 logical CPUs
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!

However, I can feel the server is running sluggish and doing TOP confirms
that only one CPU is being used:

last pid: 90384; load averages: 1.39, 1.35, 1.19
up 0+05:58:52 13:19:40
143 processes: 1 running, 141 sleeping, 1 zombie
CPU states: 0.9% user, 2.6% nice, 2.1% system, 0.2% interrupt, 94.2%
idle
Mem: 486M Active, 3092M Inact, 223M Wired, 129M Cache, 112M Buf, 46M Free
Swap: 8762M Total, 1388K Used, 8760M Free

PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
90045 root -8 20 1840K 1376K biord 0 0:35 12.65% 12.65% bsdtar
62646 root 96 0 29868K 27888K select 0 0:21 0.29% 0.29% perl
90367 mailnull 4 0 7120K 4168K sbwait 2 0:00 0.94% 0.24%
exim-4.53-0
1957 mysql 20 0 87640K 50412K kserel 2 9:40 0.00% 0.00% mysqld
899 clamav 20 0 25176K 24176K kserel 2 1:18 0.00% 0.00% clamd
698 root 8 20 9712K 8836K nanslp 0 0:53 0.00% 0.00%
perl5.8.6
776 root 104 0 9212K 5676K select 2 0:52 0.00% 0.00% cppop
2755 root 8 0 2744K 2052K nanslp 2 0:42 0.00% 0.00%
perl5.8.6
434 bind 20 0 11092K 9472K kserel 2 0:40 0.00% 0.00% named
871 root 96 0 10920K 6676K select 2 0:09 0.00% 0.00% cpsrvd
772 mailman 8 0 9116K 7260K nanslp 2 0:07 0.00% 0.00% python
770 mailman 8 0 9060K 7244K nanslp 0 0:06 0.00% 0.00% python
768 mailman 8 0 8716K 7032K nanslp 2 0:06 0.00% 0.00% python
81489 nobody 4 0 47324K 39128K sbwait 2 0:06 0.00% 0.00% httpd
773 mailman 8 0 9016K 7116K nanslp 0 0:06 0.00% 0.00% python
2729 mailnull 102 0 6112K 2464K select 0 0:06 0.00% 0.00%
exim-4.53-0
771 mailman 8 0 7976K 6096K nanslp 2 0:06 0.00% 0.00% python

Any pointers if there is a patch or something I need to do for this ?

The server has 2 physical CPUs with HT enabled (Xeon 2.8GHz EM64T 800MHz
1MB)

This is running on FreeBSD 5.4-i386


Thank you,

Tamouh Hakmi


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