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2024-12-27 - 16:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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.

Total number of samples: 50 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 highest latencies:
System rack9slot8s.osadl.org (updated Fri Dec 27, 2024 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818502070,0irq/46-4a10000010704-21kworker/0:107:05:070
130899911545,0cyclictest81850irq/46-4a10000012:01:470
130899911436,0cyclictest14367-21munin-node07:15:230
130899911430,0cyclictest22474-21ssh11:34:080
130899911134,0cyclictest7294-21runrttasks10:57:550
130899911133,0cyclictest15936-21munin-run09:55:010
130899911026,0cyclictest26779-21sh11:44:120
130899911024,0cyclictest2280-21runrttasks12:39:240
130899911024,0cyclictest10507-21chrt11:05:240
130899910927,0cyclictest8868-21sh12:18:280
130899910830,0cyclictest2723-21sh09:19:350
130899910826,0cyclictest2279-21lldpd08:52:330
13089991079,0cyclictest19072-21ssh11:25:520
130899910739,0cyclictest81850irq/46-4a10000011:10:280
130899910730,0cyclictest2018-21in:imuxsock11:23:220
130899910729,0cyclictest31696-21sh10:37:530
130899910729,0cyclictest15144-21runrttasks07:20:210
130899910728,0cyclictest15881-21sh11:18:270
130899910631,0cyclictest18365-21kworker/u2:710:12:170
130899910629,0cyclictest30272-21sh10:33:490
130899910629,0cyclictest23910-21sh11:37:250
130899910627,0cyclictest4790-21sh10:51:360
130899910627,0cyclictest30076-21seq08:59:180
130899910539,0cyclictest81850irq/46-4a10000012:05:110
130899910534,0cyclictest81850irq/46-4a10000010:40:270
130899910531,0cyclictest28109-21sh11:47:150
130899910529,0cyclictest7277-21kworker/u2:409:49:120
130899910529,0cyclictest27690-21sh10:26:460
130899910529,0cyclictest15209-21sh12:33:280
130899910527,0cyclictest11610-21sh09:43:200
130899910526,0cyclictest31680-21diskmemload09:39:530
130899910431,0cyclictest81850irq/46-4a10000009:25:030
130899910427,0cyclictest10312-21kworker/u2:510:00:340
130899910426,0cyclictest5468-21seq09:26:520
130899910326,0cyclictest30383-21seq11:52:390
130899910325,0cyclictest7413-21sh09:32:060
130899910325,0cyclictest28061-21seq08:46:260
130899910236,0cyclictest81850irq/46-4a10000011:03:220
130899910228,0cyclictest22168-21kworker/u2:208:09:190
130899910228,0cyclictest15311-21kworker/u2:007:35:240
130899910227,0cyclictest27941-1kworker/u3:012:10:040
130899910227,0cyclictest21421-21kworker/u2:008:40:050
130899910226,0cyclictest24262-21diskmemload10:17:250
13089991017,0cyclictest17601-21seq09:59:230
130899910135,0cyclictest101ktimersoftd/010:25:010
130899910134,0cyclictest81850irq/46-4a10000012:24:460
130899910132,0cyclictest945-21runrttasks09:14:370
130899910127,0cyclictest397-21ssh11:58:370
130899910123,0cyclictest81950irq/47-4a10000012:27:200
130899910123,0cyclictest3777-21chrt10:49:120
130899910029,0cyclictest23189-21runrttasks08:14:040
130899910026,0cyclictest24047-21cron08:20:020
13089999828,0cyclictest19525-21runrttasks07:49:210
13089999720,0cyclictest0-21swapper10:05:430
13089999633,0cyclictest25389-21sshd08:28:510
13089999629,0cyclictest31254-21runrttasks09:06:420
13089999523,0cyclictest18676-21runrttasks07:43:250
13089999519,0cyclictest0-21swapper07:28:330
13089999217,0cyclictest0-21swapper08:31:340
13089997625,0cyclictest0-21swapper08:02:130
13089995425,0cyclictest24167-21latency_hist08:20:040
13089995226,0cyclictest0-21swapper08:43:330
13089995127,0cyclictest0-21swapper07:53:460
13089994940,0cyclictest81850irq/46-4a10000007:35:040
13089994738,0cyclictest101ktimersoftd/009:00:230
13089994630,0cyclictest13813-21munin-run07:15:010
13089994630,0cyclictest13087-21cyclictest07:56:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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