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2025-04-03 - 23:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, 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 on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rackcslot7s.osadl.org (updated Thu Apr 03, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1623991410,16rtkit-daemon0-21swapper/221:05:522
3545621190,6sleep00-21swapper/023:25:040
257182980,7sleep30-21swapper/322:55:013
162399880,71rtkit-daemon0-21swapper/219:05:362
414420328061,13sleep30-21swapper/319:05:523
162399770,6rtkit-daemon2197014-21PK-Backend21:37:102
414439027640,9sleep00-21swapper/019:08:180
162399760,7rtkit-daemon2197014-21PK-Backend23:18:482
162399750,7rtkit-daemon2197014-21PK-Backend21:40:472
41618422740,4chrt4161202-21/usr/sbin/munin19:55:202
162399740,9rtkit-daemon1622-21rtkit-daemon19:50:523
162399730,6rtkit-daemon2197014-21PK-Backend20:02:472
162399690,5rtkit-daemon0-21swapper/222:52:532
414431426840,22sleep10-21swapper/119:07:201
162399680,9rtkit-daemon3242254-21gmain21:48:000
162399680,5rtkit-daemon0-21swapper/222:22:252
499692640,7chrt2197014-21PK-Backend00:15:190
162399630,18rtkit-daemon0-21swapper/300:17:083
41819492620,32sleep342-21ksoftirqd/320:50:273
41654402570,9chrt1753-21gnome-shell20:05:272
162399560,8rtkit-daemon1622-21rtkit-daemon21:48:211
41933922550,7chrt2197014-21PK-Backend21:21:183
162399550,8rtkit-daemon1622-21rtkit-daemon19:29:422
414465299541,17cyclictest908-21gdbus20:49:340
162399540,8rtkit-daemon1622-21rtkit-daemon19:11:053
162399540,8rtkit-daemon1622-21rtkit-daemon19:11:053
41906352530,9sleep30-21swapper/321:15:193
41868432530,4sleep00-21swapper/021:05:140
414465799532,16cyclictest1753-21gnome-shell20:15:071
414465799532,16cyclictest1753-21gnome-shell20:15:061
414466299521,16cyclictest4185651-40lsb_release21:00:243
4144662995211,36cyclictest1753-21gnome-shell23:55:123
414465799522,26cyclictest4180589-21seq20:45:581
162399520,7rtkit-daemon1622-21rtkit-daemon19:48:043
414465799511,23cyclictest7320-21memory21:50:181
4144652995136,11cyclictest13-21ksoftirqd/021:00:010
162399510,38rtkit-daemon42-21ksoftirqd/321:56:303
92502500,8chrt1753-21gnome-shell21:55:261
414466299502,44cyclictest1753-21gnome-shell21:09:193
414466299502,43cyclictest1753-21gnome-shell21:27:483
414466299502,43cyclictest1753-21gnome-shell20:36:173
414466299502,42cyclictest35675-40lsb_release23:27:253
414466299502,15cyclictest1753-21gnome-shell20:45:133
4144662995015,30cyclictest860997-21snmpd22:56:273
414466299501,43cyclictest54324-40lsb_release00:30:203
4144662995012,34cyclictest4178912-21pool-org.gnome.20:45:013
414466299501,14cyclictest4167391-21grep20:10:333
414465799507,20cyclictest1069-21runrttasks21:41:361
414465799506,21cyclictest4154597-21missed_timers19:35:231
414465799503,21cyclictest15034-21ntpq22:15:271
414465799502,22cyclictest4172015-21hddtemp_smartct20:25:191
4144652995029,14cyclictest13-21ksoftirqd/020:05:540
414466299499,35cyclictest1753-21gnome-shell19:31:463
414466299498,37cyclictest1753-21gnome-shell22:10:343
414466299492,42cyclictest1753-21gnome-shell23:51:353
414466299492,42cyclictest1753-21gnome-shell21:40:143
414466299492,42cyclictest1753-21gnome-shell21:36:303
414466299492,42cyclictest1753-21gnome-shell20:23:253
414466299492,42cyclictest1753-21gnome-shell00:35:253
4144662994918,26cyclictest4154453-21if_enp2s019:35:223
4144662994915,30cyclictest859-21NetworkManager00:00:033
4144662994910,34cyclictest1753-21gnome-shell23:15:073
414465799493,22cyclictest869-21irqbalance20:10:551
4144652994939,6cyclictest13-21ksoftirqd/022:41:540
41510152480,8sleep126-21ksoftirqd/119:25:221
414466299489,34cyclictest438-20systemd-journal23:34:343
4144662994828,16cyclictest1827-21JS14:31:443
414466299482,42cyclictest1753-21gnome-shell21:46:073
414466299482,41cyclictest1753-21gnome-shell23:44:233
414466299482,41cyclictest1753-21gnome-shell23:44:223
414466299482,41cyclictest1753-21gnome-shell22:01:473
414466299482,41cyclictest1753-21gnome-shell22:01:463
414466299482,41cyclictest1753-21gnome-shell20:57:253
414466299482,41cyclictest1753-21gnome-shell00:12:203
4144662994823,21cyclictest1753-21gnome-shell20:02:343
414466299481,43cyclictest1753-21gnome-shell21:53:153
4144652994823,20cyclictest4190464-21expr21:15:140
162399480,9rtkit-daemon35660-40lsb_release23:27:232
414466299473,8cyclictest1753-21gnome-shell22:15:183
414466299472,41cyclictest1753-21gnome-shell20:26:483
414466299472,41cyclictest1753-21gnome-shell00:24:113
4144662994720,23cyclictest1753-21gnome-shell20:34:453
4144662994720,22cyclictest27783-21cpuspeed_turbos23:00:163
4144662994717,26cyclictest1753-21gnome-shell23:37:043
4144659994726,16cyclictest34-21ksoftirqd/200:30:152
414465799476,25cyclictest1753-21gnome-shell19:20:441
414465799474,27cyclictest1069-21runrttasks21:06:081
414466299469,33cyclictest1753-21gnome-shell23:10:013
414466299467,34cyclictest0-21swapper/323:10:183
414466299462,8cyclictest1753-21gnome-shell22:35:313
4144662994622,19cyclictest22721-21python322:40:303
414466299462,10cyclictest1753-21gnome-shell20:06:173
414466299461,41cyclictest1753-21gnome-shell21:15:013
414466299461,40cyclictest1753-21gnome-shell19:55:253
414465799468,16cyclictest4176823-21taskset20:36:221
414465799467,11cyclictest43270-21taskset23:52:481
414465799462,19cyclictest1753-21gnome-shell21:20:151
4144652994629,13cyclictest13-21ksoftirqd/022:56:150
414465299461,5cyclictest141rcu_preempt22:50:010
4144662994524,18cyclictest0-21swapper/322:20:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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