lbdata.log

Linux磁盘测试的源代码,测试磁盘的读写性能

Command Line:

    % dt of=/dev/rmt0h bs=64k limit=10m aios=16 files=2 enable=lbdata log=lbdata.log 

	--> Date: January 13, 1999, Version: 11.2, Author: Robin T. Miller <--

Write Statistics:
     Total records processed: 320 @ 65536 bytes/record (64.000 Kbytes)
     Total bytes transferred: 20971520 (20480.000 Kbytes, 20.000 Mbytes)
      Average transfer rates: 1442994 bytes/sec, 1409.174 Kbytes/sec
     Number I/O's per second: 22.018
      Total passes completed: 0/1
       Total files processed: 2/2
       Total errors detected: 0/1
          Total elapsed time: 00m14.53s
           Total system time: 00m00.03s
             Total user time: 00m00.65s

Read Statistics:
     Total records processed: 320 @ 65536 bytes/record (64.000 Kbytes)
     Total bytes transferred: 20971520 (20480.000 Kbytes, 20.000 Mbytes)
      Average transfer rates: 1273574 bytes/sec, 1243.725 Kbytes/sec
     Number I/O's per second: 19.433
      Total passes completed: 1/1
       Total files processed: 2/2
       Total errors detected: 0/1
          Total elapsed time: 00m16.46s
           Total system time: 00m00.03s
             Total user time: 00m02.40s

Total Statistics:
     Output device/file name: /dev/rmt0h (Device: TLZ7, type=tape)
   Data pattern read/written: 0x39c39c39
     Total records processed: 640 @ 65536 bytes/record (64.000 Kbytes)
     Total bytes transferred: 41943040 (40960.000 Kbytes, 40.000 Mbytes)
      Average transfer rates: 799677 bytes/sec, 780.934 Kbytes/sec
     Asynchronous I/O's used: 16
     Number I/O's per second: 12.202
      Total passes completed: 1/1
       Total files processed: 4/4
       Total errors detected: 0/1
          Total elapsed time: 00m52.45s
           Total system time: 00m00.06s
             Total user time: 00m03.05s
               Starting time: Wed Jan 13 19:36:47 1999
                 Ending time: Wed Jan 13 19:37:50 1999