이 top 페이지 정상인가요?

CPU가 98.2% idle인데, pi의 점유율은 99.9%네요.

이게 정상적으로 표시된 게 맞는지요?

제가 idle의 의미를 잘못 이해하고 있는 건가요?

pi 프로그램을 돌려도 왜 CPU의 98%가 놀고 있는 건지, 전혀 이해할 수가 없네요;;;

Tasks: 94 total, 3 running, 91 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.7% us, 0.4% sy, 0.0% ni, 98.2% id, 0.6% wa, 0.0% hi, 0.0% si
Mem: 1016660k total, 962736k used, 53924k free, 92980k buffers
Swap: 1044144k total, 100k used, 1044044k free, 538560k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
25439 root 25 0 6044 4820 584 R 99.9 0.5 1:35.28 pi
1378 root 16 0 0 0 0 S 1.0 0.0 1:57.59 kjournald
25309 root 15 0 0 0 0 S 0.3 0.0 0:01.78 pdflush
1 root 16 0 7092 668 552 S 0.0 0.1 0:00.52 init
2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1
7 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/0
9 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 events/1