Dan Nelson wrote:
In the last episode (Aug 15), Mike Jakubik said:
35 processes:  7 running, 28 sleeping
CPU states: 58.1% user,  0.0% nice, 38.4% system,  1.1% interrupt,  2.4%  idle
Mem: 642M Active, 416M Inact, 125M Wired, 112M Buf, 825M Free
Swap: 4071M Total, 4071M Free

 PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
 465 mysql      18  20    0   905M   641M kserel 0  39:18 160.64% mysqld
 631 root        1  96    0  2424K  1668K CPU1   0   0:02  0.00% top

How can mysql use 160%? Is this a reporting bug in top because mysql is threaded?

You have multiple CPUs, so a threaded process can theoretically reach
100*ncpus cpu usage.

I use FreeBSD 6.1-STABLE/AMD on an pure 64Bit box/environment, single CPU Athlon 3500+, and sometimes I can see a 100%+ usage of WCPU in 'xine' or 'transmission'. So this is definitely not related to multiple CPUs.
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