Summary: 2.4.14-pre3aa1 takes more wall time for
tests. Audio sounds closer to the "edge",
I.E more likely to skitter or skip.
Test: Run "mtest01 -w 80" and mmap001 from LTP.
Listen to long mp3 sampled at 128k.
Light console irc client and lynx use.
2.4.14-pre3aa1
About 2-3 seconds of sound skitter when typing
a URL in lynx or something in irc client.
Averages for 10 mtest01 runs
bytes allocated: 1246232576
User time (seconds): 2.105
System time (seconds): 2.773
Elapsed (wall clock) time: 59.503
Percent of CPU this job got: 7.80
Major (requiring I/O) page faults: 132.8
Minor (reclaiming a frame) faults: 305043.1
About 2-3 seconds of sound drop on mmap001 for
2.4.14-pre3aa1.
Average for 5 mmap001 runs
bytes allocated: 2048000000
User time (seconds): 19.660
System time (seconds): 16.272
Elapsed (wall clock seconds) time: 287.13
Percent of CPU this job got: 12.00
Major (requiring I/O) page faults: 500168.0
Minor (reclaiming a frame) faults: 38.8
2.4.14-pre3
Same two tests on 2.4.14-pre3 for comparison:
Averages for 10 mtest01 runs
bytes allocated: 1233859379
User time (seconds): 2.034
System time (seconds): 3.036
Elapsed (wall clock) time: 30.517
Percent of CPU this job got: 16.10
Major (requiring I/O) page faults: 107.0
Minor (reclaiming a frame) faults: 302029.3
Average for 5 mmap001 runs
bytes allocated: 2048000000
User time (seconds): 19.578
System time (seconds): 17.388
Elapsed (wall clock seconds) time: 171.45
Percent of CPU this job got: 21.20
Major (requiring I/O) page faults: 500158.8
Minor (reclaiming a frame) faults: 41.4
--
Randy Hron