top - 01:50:56 up 15 days, 30 min, 4 users, load average: 0.89, 1.17, 1.11 Tasks: 170 total, 1 running, 169 sleeping, 0 stopped, 0 zombie
Cpu0 : 56.6%us, 5.7%sy, 0.0%ni, 36.8%id, 0.0%wa, 0.0%hi, 0.9%si, 0.0%st
Cpu1 : 0.9%us, 0.0%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 8.3%us, 0.9%sy, 0.0%ni, 90.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu3 : 1.0%us, 1.0%sy, 0.0%ni, 98.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu4 : 9.3%us, 1.2%sy, 0.0%ni, 88.4%id, 0.0%wa, 0.0%hi, 1.2%si, 0.0%st
Cpu5 : 0.9%us, 0.0%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu6 : 3.7%us, 0.9%sy, 0.9%ni, 94.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 8180768k total, 7169736k used, 1011032k free, 756132k buffers Swap: 2104472k total, 24k used, 2104448k free, 5849080k cached
19033 quinroot 20 0 384m 45m 19m S 5 0.6 0:31.52 httpd
19292 quinroot 20 0 375m 35m 18m R 5 0.4 0:15.10 httpd
19474 quinroot 20 0 368m 26m 16m S 5 0.3 0:04.26 httpd
19344 quinroot 20 0 373m 34m 18m S 5 0.4 0:13.30 httpd
19351 quinroot 20 0 373m 33m 18m S 5 0.4 0:12.82 httpd
19455 quinroot 20 0 369m 28m 17m S 5 0.4 0:06.20 httpd
19476 quinroot 20 0 369m 26m 15m R 5 0.3 0:04.48 httpd
19478 quinroot 20 0 368m 25m 14m S 5 0.3 0:04.40 httpd
19540 quinroot 20 0 367m 24m 15m S 5 0.3 0:01.28 httpd
19542 quinroot 20 0 367m 24m 15m S 5 0.3 0:01.26 httpd
19173 quinroot 20 0 379m 41m 19m S 4 0.5 0:24.40 httpd
19290 quinroot 20 0 375m 34m 18m S 4 0.4 0:15.28 httpd
19349 quinroot 20 0 373m 31m 16m S 4 0.4 0:12.86 httpd
19454 quinroot 20 0 369m 29m 17m S 4 0.4 0:06.14 httpd
19475 quinroot 20 0 368m 26m 15m S 4 0.3 0:04.10 httpd
19544 quinroot 20 0 367m 23m 14m S 4 0.3 0:01.28 httpd
19099 quinroot 20 0 380m 42m 20m S 3 0.5 0:25.90 httpd
19293 quinroot 20 0 374m 34m 17m R 3 0.4 0:15.24 httpd
19537 quinroot 20 0 367m 23m 14m S 3 0.3 0:01.08 httpd
19545 quinroot 20 0 367m 23m 14m S 3 0.3 0:01.16 httpd
19526 root 20 0 16940 1348 948 R 1 0.0 0:00.16 top
1 root 20 0 1064 392 324 S 0 0.0 0:07.62 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
Why Apache always use only one CPU?