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2024-07-27 - 03:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7s.osadl.org (updated Fri Jul 26, 2024 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310522590211,5866sleep022131-21kworker/0:110:41:150
17756234537,255sleep117797-21ntpq08:16:201
11679232615,248sleep111778-21timerwakeupswit11:21:301
6409227220,236sleep36494-21fschecks_time11:06:133
15736226312,237sleep215743-21df_inode11:36:122
1968822618,237sleep119773-21grep10:06:151
1968822618,237sleep119773-21grep10:06:151
31549225973,163sleep131591-21grep09:00:541
17694224473,27sleep10-21swapper/111:41:241
28330224053,27sleep10-21swapper/108:50:571
23135223942,183sleep123138-21cron12:00:541
3271223269,103sleep13363-21fschecks_time10:56:141
13456223188,25sleep10-21swapper/109:46:121
13456223188,25sleep10-21swapper/109:46:121
499222463,108sleep1540-21grep07:21:251
499222463,108sleep1540-21grep07:21:251
29567222161,81sleep10-21swapper/112:20:571
8418221862,80sleep10-21swapper/109:30:541
4862219716,166sleep04881-21grep11:01:140
1434219254,80sleep11497-21mailstats09:06:231
26318219072,24sleep10-21swapper/112:10:561
1591821836,164sleep115932-21fschecks_count08:11:161
7098218110,155sleep07172-21find07:41:310
1830218113,154sleep21831-21sshd07:26:152
1830218113,154sleep21831-21sshd07:26:152
26966217711,151sleep026998-21ntpq12:11:230
19024217415,138sleep10-21swapper/111:46:171
7995217149,39sleep18070-21fschecks_time11:11:161
23890217011,140sleep123924-21ps12:01:231
5725216910,82sleep10-21swapper/109:21:171
2991821698,16sleep10-21swapper/112:21:261
24130216714,137sleep124346-21latency_hist10:20:571
23179216521,127sleep323203-21/usr/sbin/munin10:16:233
3192214617,18sleep10-21swapper/107:30:581
3192214617,18sleep10-21swapper/107:30:581
13464214417,102sleep213546-21fschecks_time09:46:132
13464214417,102sleep213546-21fschecks_time09:46:132
28884214227,90sleep028905-21munin-run10:35:540
1388214211,74sleep117-21ksoftirqd/110:50:571
1388214211,74sleep117-21ksoftirqd/110:50:571
11916213725,24sleep00-21swapper/009:41:150
11916213725,24sleep00-21swapper/009:41:150
17797213513,106sleep21-21systemd10:00:552
25436213419,99sleep325500-21processes12:06:213
2940721336,101sleep00-21swapper/010:36:060
18732213212,96sleep20-21swapper/208:20:582
29079213114,55sleep129141-21modprobe07:10:551
29911212810,68sleep10-21swapper/110:36:441
26492212843,67sleep126564-21timerandwakeup07:01:261
3689212732,12sleep10-21swapper/109:14:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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