More than 100% !!?!?

[jls]

Just a quick one.

I am running two concurrent instances of 'bzip2', both compressing large (>10gb) files.
When I run top, I see that both of them are using approximately 92% cpu.
How is that possible to have about 180% cpu usage?

THanks

[RobinVossen]

You are sure you did setup everything right?
Since it sounds that you look at the total CPU use instead of the CPU use for each Process.

[jls]

I don't think so as they are not both reporting the same useage. Here on is reporting 97% and the second 92%

top - 11:46:14 up 74 days, 21:49, 12 users, load average: 2.25, 2.52, 2.54
Tasks: 240 total, 3 running, 229 sleeping, 4 stopped, 4 zombie
Cpu(s): 93.7%us, 1.5%sy, 0.0%ni, 0.2%id, 4.1%wa, 0.0%hi, 0.5%si, 0.0%st
Mem: 2075416k total, 2021896k used, 53520k free, 1528k buffers
Swap: 4200888k total, 517584k used, 3683304k free, 1355732k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
804 root 25 0 8968 7832 384 R 97 0.4 34:05.78 bzip2
776 root 25 0 8964 7832 384 R 92 0.4 41:54.27 bzip2

[vsemaska]

Sounds like your system has more than one processor. Check with the command:

# cat /proc/cpuinfo

Vic

[jls]

Doh!!

Thanks vic.