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2024-05-26 - 14:24

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 50 highest latencies:
System rack7slot7s.osadl.org (updated Sun May 26, 2024 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2199210490,9sleep10-21swapper/119:09:091
2191210075,9sleep30-21swapper/319:09:033
107328369,9sleep00-21swapper/019:05:230
213128164,13sleep20-21swapper/219:08:182
86262610,0sleep30-21swapper/322:28:213
2358992827,1cyclictest0-21swapper/323:37:373
2358992827,1cyclictest0-21swapper/323:00:183
2358992827,1cyclictest0-21swapper/321:10:583
2358992827,1cyclictest0-21swapper/300:08:583
2358992726,1cyclictest0-21swapper/323:22:183
2358992726,1cyclictest0-21swapper/300:17:183
2358992625,1cyclictest0-21swapper/322:57:373
2358992625,1cyclictest0-21swapper/322:21:383
2358992524,1cyclictest0-21swapper/323:13:383
2358992524,1cyclictest0-21swapper/322:02:583
2358992423,1cyclictest0-21swapper/321:21:183
235699241,22cyclictest25357-21grep21:00:342
235699220,21cyclictest0-21swapper/221:27:242
234799218,6cyclictest11336-21apt-get00:05:010
234799213,3cyclictest141rcu_preempt23:41:390
2358992011,6cyclictest496-21dbus-daemon19:20:003
235699200,15cyclictest0-21swapper/200:05:572
2351992020,0cyclictest0-21swapper/122:04:381
234799190,18cyclictest0-21swapper/023:49:000
235899180,16cyclictest0-21swapper/300:25:073
235199181,16cyclictest0-21swapper/121:16:201
2347991815,1cyclictest29425-21users21:55:320
234799180,13cyclictest0-21swapper/021:41:410
2358991713,4cyclictest39-21ksoftirqd/322:35:213
2356991714,1cyclictest0-21swapper/221:37:422
235199170,0cyclictest0-21swapper/123:50:501
2347991716,1cyclictest0-21swapper/000:30:150
235899160,15cyclictest0-21swapper/321:45:143
2356991615,1cyclictest10117-21kworker/2:122:26:482
235699160,16cyclictest0-21swapper/200:39:402
235199160,3cyclictest0-21swapper/123:38:331
235199160,1cyclictest0-21swapper/121:50:331
2347991613,2cyclictest4234-21expr22:25:170
235899153,2cyclictest141rcu_preempt00:34:583
235899150,15cyclictest0-21swapper/321:37:083
2356991513,2cyclictest32-21ksoftirqd/223:12:482
2356991512,2cyclictest15242-21df_abs19:35:152
2356991511,3cyclictest28625-21cron23:29:592
235699150,2cyclictest0-21swapper/222:41:322
235699150,14cyclictest0-21swapper/221:13:292
2351991512,2cyclictest26361-21ssh23:05:161
234799159,5cyclictest13-21ksoftirqd/023:15:140
235899142,9cyclictest11330-21cron00:05:013
2358991411,2cyclictest4763-21munin-run19:15:013
235899140,3cyclictest0-21swapper/320:10:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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