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2026-03-09 - 23:49
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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 rack0slot5.osadl.org (updated Mon Mar 09, 2026 00:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
7380259951312,469cyclictest0-21swapper/221:00:048
7380729950320,482cyclictest0-21swapper/1322:40:035
738064994909,44cyclictest0-21swapper/1122:40:033
73803399488488,0cyclictest0-21swapper/422:41:0310
73805299483483,0cyclictest750688-21kworker/9:0+i915-unordered19:32:0415
73807299480480,0cyclictest848165-21kworker/13:2+i915-unordered23:41:035
73803399480478,2cyclictest971862-21kworker/4:0+i915-unordered00:03:0310
7380699947824,58cyclictest0-21swapper/1222:09:254
73804199477476,1cyclictest774814-21kworker/6:0+i915-unordered20:01:0412
7380649947334,438cyclictest0-21swapper/1100:30:033
73803799466464,2cyclictest780256-21kworker/5:1+i915-unordered20:06:0411
73802999461458,2cyclictest69750irq/159-i91523:53:039
7380699944425,30cyclictest0-21swapper/1223:44:254
7380419944425,30cyclictest0-21swapper/623:48:0312
7380419944423,30cyclictest0-21swapper/621:50:0312
7380699944115,30cyclictest0-21swapper/1222:18:254
7380699944113,30cyclictest0-21swapper/1220:23:484
7380699944112,29cyclictest0-21swapper/1223:16:274
73806499441440,1cyclictest967958-21kworker/11:2+i915-unordered23:53:033
738064994400,0cyclictest0-21swapper/1120:46:043
73802999439438,1cyclictest69750irq/159-i91522:58:039
73807599438432,5cyclictest1801-21snmpd19:59:166
738064994380,438cyclictest0-21swapper/1121:41:043
7380419943819,30cyclictest0-21swapper/621:41:0312
7380699943712,29cyclictest0-21swapper/1223:03:254
7380419943716,30cyclictest0-21swapper/619:28:5912
73802999437436,1cyclictest69750irq/159-i91523:22:039
73802999437436,1cyclictest69750irq/159-i91523:22:039
7380699943611,30cyclictest0-21swapper/1219:10:264
7380699943510,30cyclictest0-21swapper/1223:58:474
73802999435434,1cyclictest69750irq/159-i91520:53:049
7380419943416,30cyclictest0-21swapper/600:12:0312
738052994336,29cyclictest0-21swapper/920:05:4915
7380259943214,29cyclictest0-21swapper/200:28:598
73804199430426,3cyclictest1801-21snmpd22:41:1512
738080994275,29cyclictest0-21swapper/1519:20:047
7380529942628,397cyclictest0-21swapper/921:59:2715
7380529942628,397cyclictest0-21swapper/919:34:2815
738025994260,27cyclictest0-21swapper/220:36:468
738025994260,27cyclictest0-21swapper/220:36:468
738025994260,26cyclictest0-21swapper/221:37:508
7380259942527,397cyclictest0-21swapper/223:18:508
738025994250,27cyclictest0-21swapper/222:43:498
738025994240,27cyclictest0-21swapper/220:20:488
738072994230,422cyclictest0-21swapper/1321:09:275
738025994230,26cyclictest0-21swapper/219:48:488
7380759942226,395cyclictest0-21swapper/1419:42:466
7380759942225,397cyclictest0-21swapper/1420:55:276
738069994220,30cyclictest0-21swapper/1223:21:034
738069994220,30cyclictest0-21swapper/1223:21:034
7380529942224,397cyclictest0-21swapper/921:57:2515
7380469942222,399cyclictest0-21swapper/722:39:2513
738041994224,29cyclictest0-21swapper/623:52:0312
73806499421421,0cyclictest0-21swapper/1122:03:033
73806499421419,2cyclictest899727-21kworker/11:1+i915-unordered22:58:033
7380529942122,396cyclictest0-21swapper/921:45:2515
73804199421418,2cyclictest737577-21kworker/6:4+i915-unordered19:22:0412
73806499420418,1cyclictest919859-21kworker/11:2+i915-unordered23:22:033
73806499420418,1cyclictest919859-21kworker/11:2+i915-unordered23:22:033
73808099419418,1cyclictest0-21swapper/1520:57:397
7380759941925,393cyclictest0-21swapper/1420:14:266
7380699941926,392cyclictest0-21swapper/1222:45:034
7380469941925,393cyclictest0-21swapper/722:52:0313
7380759941824,393cyclictest0-21swapper/1421:29:256
7380699941826,392cyclictest0-21swapper/1200:03:034
73806499418416,1cyclictest815079-21kworker/11:0+i915-unordered20:53:043
7380759941723,393cyclictest0-21swapper/1421:51:256
7380759941723,393cyclictest0-21swapper/1400:37:466
7380759941723,393cyclictest0-21swapper/1400:02:256
7380759941721,395cyclictest0-21swapper/1423:31:256
73805899417386,31cyclictest0-21swapper/1000:26:032
7380759941620,395cyclictest0-21swapper/1422:28:256
7380759941620,395cyclictest0-21swapper/1420:37:276
7380759941620,395cyclictest0-21swapper/1420:37:276
7380699941619,396cyclictest0-21swapper/1200:22:264
7380649941617,398cyclictest0-21swapper/1119:44:283
7380469941620,396cyclictest0-21swapper/723:28:5913
7380469941620,396cyclictest0-21swapper/723:28:5913
7380469941617,398cyclictest0-21swapper/719:09:2513
7380419941623,393cyclictest0-21swapper/622:55:0312
7380419941622,393cyclictest0-21swapper/622:53:0312
73803399416413,2cyclictest830200-21kworker/u64:8+events_unbound21:07:4710
73802999416416,0cyclictest69750irq/159-i91519:48:049
7380299941615,400cyclictest0-21swapper/319:50:279
7380759941519,395cyclictest0-21swapper/1400:10:256
7380759941518,396cyclictest0-21swapper/1419:29:466
73803799415414,1cyclictest774837-21kworker/5:0+pm19:59:1611
73802599415415,0cyclictest0-21swapper/222:28:038
7380759941417,396cyclictest0-21swapper/1419:56:266
7380729941416,397cyclictest899045-21timerandwakeup22:24:275
73805899414414,0cyclictest0-21swapper/1022:55:012
7380469941416,397cyclictest0-21swapper/721:37:2713
7380299941416,397cyclictest0-21swapper/320:54:269
7380299941415,398cyclictest0-21swapper/322:31:279
73807299413412,1cyclictest0-21swapper/1322:32:485
7380469941313,399cyclictest0-21swapper/721:25:2613
7380299941316,397cyclictest0-21swapper/323:33:489
7380299941315,397cyclictest0-21swapper/300:34:269
7380299941314,398cyclictest0-21swapper/321:56:269
7380299941314,398cyclictest0-21swapper/321:23:269
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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