Summary:
2.4.14-pre3 The greased weasel is back
2.4.13-ac3 Inconsistent results on mtest01
2.4.13-ac3-freeswap patch for 2.4.12-ac3 makes results consistent in mtest01
Test: Run mtest01 and mmap001 from Linux Test Project.
Listen to long running (50+ minutes) mp3 sampled at 128k.
Default kernel parameters.
Light interactive use: lynx, 2 bitchx (console IRC client) sessions,
vmstat 8, iostat -d 10. (52k link to net - mostly idle).
2.4.13-pre3 had much better interactive response than 2.4.13-ac3
during these tests. No X.
Hardware:
AMD 1333 Athlon
512 MB RAM
1024 MB swap
mtest01
=======
2.4.14-pre3
mp3blaster did not skip. Best time I ever recorded for this test
without mp3 skipping. Previous "best" with no mp3 skips was:
2.4.13-pre3aa1-page-cluster=2
Elapsed (wall clock) time: 47.878
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
2.4.13-ac3
Played about 90 seconds of mp3 during 200 second run.
747634688 - 1181745152 bytes allocated per iteration.
Averages for 10 mtest01 runs
bytes allocated: 894120755
User time (seconds): 1.499
System time (seconds): 2.744
Elapsed (wall clock) time: 20.646
Percent of CPU this job got: 20.40
Major (requiring I/O) page faults: 101.9
Minor (reclaiming a frame) faults: 218898.0
2.4.13-ac3-freeswap
Played about 120 seconds of mp3 during 350 second run.
Averages for 10 mtest01 runs
bytes allocated: 1244449996
User time (seconds): 2.033
System time (seconds): 3.761
Elapsed (wall clock) time: 35.219
Percent of CPU this job got: 16.00
Major (requiring I/O) page faults: 114.1
Minor (reclaiming a frame) faults: 304611.1
mmap001 test
============
2.4.14-pre3
mp3 did not skip.
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
About 2-3 seconds of mp3 skip for entire run.
2.4.13-ac3
Average for 5 mmap001 runs
bytes allocated: 2048000000
User time (seconds): 19.412
System time (seconds): 16.974
Elapsed (wall clock seconds) time: 151.49
Percent of CPU this job got: 23.40
Major (requiring I/O) page faults: 500180.2
Minor (reclaiming a frame) faults: 20.0
About 2-3 seconds of mp3 skip for entire run.
2.4.13-ac3-freeswap
Average for 5 mmap001 runs
bytes allocated: 2048000000
User time (seconds): 19.260
System time (seconds): 17.456
Elapsed (wall clock seconds) time: 151.44
Percent of CPU this job got: 23.80
Major (requiring I/O) page faults: 500174.0
Minor (reclaiming a frame) faults: 20.0
runalltests.sh
==============
When executing runalltests.sh from LTP, 2.4.14-pre3 returns
FAIL on the personality01 tests (11 FAIL) whereas 2.4.13-ac3
returns PASS on the same tests.
--
Randy Hron