http://kinshachi.ddo.jp/blog/comp/archives/000657.html
http://mw.air-nifty.com/mine_log/2008/11/tar-4e5f.html
cd /mnt/fsdisk && /usr/bin/time -v tar -c -l -p -S -f - backup | (cd /mnt/usbtemp && tar -x -v -p -f -)
Command being timed: "tar -c -l -p -S -f - backup"
User time (seconds): 60.56
System time (seconds): 1788.43
Percent of CPU this job got: 13%
Elapsed (wall clock) time (h:mm:ss or m:ss): 3:53:35
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): 9280
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 32
Minor (reclaiming a frame) page faults: 652048
Voluntary context switches: 16962347
Involuntary context switches: 358770
Swaps: 0
File system inputs: 1748657048
File system outputs: 165360
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
/usr/bin/time -v cp -av backup /mnt/usbtemp/backup2
Command being timed: "cp -av backup /mnt/usbtemp/backup2"
User time (seconds): 23.29
System time (seconds): 2308.18
Percent of CPU this job got: 15%
Elapsed (wall clock) time (h:mm:ss or m:ss): 4:11:54
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): 39088
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3044
Voluntary context switches: 7293842
Involuntary context switches: 363306
Swaps: 0
File system inputs: 1747310624
File system outputs: 1746352280
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0めも、若干だな
