실시간 스케줄링

Question

커맨드 라인을 통해 호출하는 프로세스의 실행 시간을 측정하려고합니다 (즉, 프로세스가 완료되는 데 걸리는 시간을 확인하고자합니다). 그것을 계산하는 알고리즘이 있습니까?

Answer 1

사용하여 내장 된 시간 명령을 더 구체적이고 자세한 내용은

#time tail /var/log/messages 

Messages... 
Messages... 

real 0m0.016s 
user 0m0.000s 
sys  0m0.004s 

, 사용 :

#/usr/bin/time -v sleep 1 
     Command being timed: "sleep 1" 
     User time (seconds): 0.00 
     System time (seconds): 0.00 
     Percent of CPU this job got: 1% 
     Elapsed (wall clock) time (h:mm:ss or m:ss): 0:01.05 
     Average shared text size (kbytes): 0 
     Average unshared data size (kbytes): 0 
     Average stack size (kbytes): 0 
     Average total size (kbytes): 0 
     Maximum resident set size (kbytes): 0 
     Average resident set size (kbytes): 0 
     Major (requiring I/O) page faults: 0 
     Minor (reclaiming a frame) page faults: 210 
     Voluntary context switches: 2 
     Involuntary context switches: 1 
     Swaps: 0 
     File system inputs: 0 
     File system outputs: 0 
     Socket messages sent: 0 
     Socket messages received: 0 
     Signals delivered: 0 
     Page size (bytes): 4096 
     Exit status: 0 

예를 들어