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2025-04-23 - 16:21

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 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.

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 Wed Apr 23, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1623991080,9rtkit-daemon1622-21rtkit-daemon08:50:200
277092921050,5sleep00-21swapper/009:05:180
1623991020,23rtkit-daemon2797060-21runrttasks10:31:031
27730722980,4chrt2773073-21awk09:10:461
162399980,19rtkit-daemon0-21swapper/209:28:301
273051429268,16sleep30-21swapper/307:08:543
162399880,6rtkit-daemon2197014-21PK-Backend07:19:082
162399810,10rtkit-daemon1753-21gnome-shell08:43:452
162399800,6rtkit-daemon0-21swapper/212:13:192
162399790,9rtkit-daemon1753-21gnome-shell11:17:392
162399790,6rtkit-daemon2197014-21PK-Backend08:39:192
273034127839,9sleep10-21swapper/107:06:391
162399770,6rtkit-daemon2197014-21PK-Backend12:24:422
162399770,6rtkit-daemon0-21swapper/211:54:122
162399760,6rtkit-daemon2197014-21PK-Backend09:23:182
162399750,6rtkit-daemon2197014-21PK-Backend11:13:262
162399750,6rtkit-daemon2197014-21PK-Backend07:21:072
273050627451,17sleep00-21swapper/007:08:470
162399740,6rtkit-daemon2197014-21PK-Backend11:32:092
162399740,6rtkit-daemon2197014-21PK-Backend11:04:182
162399740,6rtkit-daemon2197014-21PK-Backend09:10:472
162399740,6rtkit-daemon2197014-21PK-Backend08:09:522
162399740,6rtkit-daemon2197014-21PK-Backend07:36:082
162399740,5rtkit-daemon0-21swapper/208:56:202
273057527354,13sleep20-21swapper/207:09:412
162399730,6rtkit-daemon2197014-21PK-Backend11:29:082
162399730,6rtkit-daemon2197014-21PK-Backend09:16:212
162399730,5rtkit-daemon0-21swapper/212:28:502
162399720,5rtkit-daemon0-21swapper/211:48:562
162399720,5rtkit-daemon0-21swapper/208:21:572
162399720,5rtkit-daemon0-21swapper/010:35:390
273074599700,66cyclictest1622-21rtkit-daemon11:01:151
162399700,6rtkit-daemon0-21swapper/208:27:272
162399700,5rtkit-daemon0-21swapper/212:19:012
27659322640,7chrt2197014-21PK-Backend08:50:313
27403352580,7chrt26-21ksoftirqd/107:38:011
2730755995543,8cyclictest42-21ksoftirqd/312:15:033
162399540,8rtkit-daemon2784829-21sensors_temp09:50:231
162399540,8rtkit-daemon2784829-21sensors_temp09:50:231
162399540,8rtkit-daemon1622-21rtkit-daemon10:18:203
162399540,11rtkit-daemon1753-21gnome-shell08:42:083
27929082530,7sleep22197014-21PK-Backend10:15:312
2730750995329,20cyclictest1753-21gnome-shell12:00:312
2730742995023,8cyclictest2797428-21kworker/0:011:10:010
273075599494,29cyclictest141rcu_preempt08:05:013
273075599494,29cyclictest141rcu_preempt08:05:013
2730755994824,20cyclictest2828264-40lsb_release12:15:263
28291002470,4sleep00-21swapper/012:20:020
2730755994737,6cyclictest42-21ksoftirqd/310:10:093
2730750994723,20cyclictest1753-21gnome-shell07:30:002
162399470,34rtkit-daemon1753-21gnome-shell07:32:122
2730755994635,8cyclictest42-21ksoftirqd/312:01:503
273075099466,18cyclictest34-21ksoftirqd/209:55:512
28347412450,21sleep32197014-21PK-Backend12:35:313
27798852450,6sleep02197014-21PK-Backend09:35:120
2730750994530,11cyclictest2796295-21sshd10:30:142
2730745994533,9cyclictest26-21ksoftirqd/111:12:301
2730745994527,13cyclictest438-20systemd-journal09:50:001
2730745994526,14cyclictest3242253-21nautilus07:25:021
2730755994431,10cyclictest42-21ksoftirqd/311:15:013
2730750994411,6cyclictest141rcu_preempt10:45:002
273074299449,5cyclictest141rcu_preempt10:10:020
273074299449,5cyclictest141rcu_preempt10:10:020
27421592430,6sleep3411rcuc/307:43:383
273075599438,16cyclictest1753-21gnome-shell11:32:383
2730755994318,12cyclictest438-20systemd-journal12:25:003
2730745994324,6cyclictest26-21ksoftirqd/111:00:011
2730745994324,15cyclictest2811850-21sh11:20:201
2730745994324,15cyclictest26-21ksoftirqd/112:30:171
2730745994323,6cyclictest26-21ksoftirqd/111:15:241
162399430,5rtkit-daemon0-21swapper/207:45:122
2730755994224,14cyclictest1-21systemd09:35:013
273075599421,10cyclictest2197014-21PK-Backend08:25:593
2730750994210,6cyclictest141rcu_preempt10:35:242
2730745994232,6cyclictest26-21ksoftirqd/112:15:221
2730745994229,9cyclictest26-21ksoftirqd/112:01:491
2730745994223,6cyclictest26-21ksoftirqd/112:30:021
2730745994223,6cyclictest26-21ksoftirqd/107:50:251
2730745994220,16cyclictest26-21ksoftirqd/109:05:021
2730745994214,12cyclictest2731317-21sh07:10:181
273074299426,6cyclictest141rcu_preempt09:50:000
2730742994225,13cyclictest2835126-21sh12:40:010
162399420,30rtkit-daemon1753-21gnome-shell07:56:313
273075599419,15cyclictest42-21ksoftirqd/311:50:013
2730755994130,6cyclictest42-21ksoftirqd/308:40:013
2730755994125,12cyclictest2794790-21sshd10:22:143
2730755994117,10cyclictest42-21ksoftirqd/307:53:103
2730750994125,12cyclictest854-21avahi-daemon11:23:152
2730750994118,18cyclictest1753-21gnome-shell09:40:212
2730750994115,6cyclictest141rcu_preempt10:11:562
2730750994115,6cyclictest141rcu_preempt10:10:002
2730750994115,6cyclictest141rcu_preempt10:10:002
2730750994115,6cyclictest141rcu_preempt10:02:042
2730750994114,11cyclictest141rcu_preempt07:15:002
2730750994113,6cyclictest141rcu_preempt11:40:332
2730745994125,12cyclictest2775458-21cron09:20:001
2730745994125,12cyclictest2754394-21ls08:20:001
2730745994124,12cyclictest438-20systemd-journal09:41:141
2730745994119,17cyclictest26-21ksoftirqd/111:45:021
2730742994123,14cyclictest2823453-21df12:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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