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Subject2.4.10-pre11: alsaplayer skiping during kernel build (-pre10 did not)
Hello Andrea,

I gave your new vm a try and I have to report a problem. System is an
Athlon 1200 with 256MB memory. Workload:

1. top refreshing every second reniced to -10
2. alsaplayer -n -q -r *.wav
3. make -j4 bzImage modules

The problem is that with 2.4.10-pre11 alsaplayer is skiping very much.
Almost every ten seconds and then the break seems to be relatevily long
(like >1s). With 2.4.10-pre10 I noticed alsaplayer skiping once or twice
during the whole build (which takes about 6min) for a very short time
(like a cd player skipping over a scratch). Here is the diff output of
time -v of the make -j4 command:

planetzork:/usr/src/linux# diff -u time.out-2.4.10-pre1*
--- time.out-2.4.10-pre10-1000823801 Tue Sep 18 16:42:30 2001
+++ time.out-2.4.10-pre11-1000824952 Tue Sep 18 17:01:39 2001
@@ -1,16 +1,16 @@
- Command being timed: "sh -c make dep clean>logfile-2.4.10-pre10 2>&1 && make -j4 bzImage modules>>logfile-2.4.10-pre10 2>&1"
- User time (seconds): 241.28
- System time (seconds): 17.82
+ Command being timed: "sh -c make dep clean>logfile-2.4.10-pre11 2>&1 && make -j4 bzImage modules>>logfile-2.4.10-pre11 2>&1"
+ User time (seconds): 242.11
+ System time (seconds): 17.10
Percent of CPU this job got: 74%
- Elapsed (wall clock) time (h:mm:ss or m:ss): 5:49.57
+ Elapsed (wall clock) time (h:mm:ss or m:ss): 5:47.60
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: 901054
- Minor (reclaiming a frame) page faults: 934971
+ Major (requiring I/O) page faults: 906843
+ Minor (reclaiming a frame) page faults: 936570
Voluntary context switches: 0
Involuntary context switches: 0
Swaps: 0

Best regards,

Jochen

--

Well, yeah ... I suppose there's no point in getting greedy, is there?

<< Calvin & Hobbes >>
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