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2026-05-10 - 06:30

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Sun May 10, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26276210998,6sleep30-21swapper/319:05:553
26659210885,18sleep00-21swapper/019:09:320
26510210897,6sleep10-21swapper/119:07:371
2218621060,0sleep00-21swapper/023:10:160
25595210379,16sleep20-21swapper/219:05:132
133582780,0sleep30-21swapper/319:55:173
318352720,4sleep02672199cyclictest00:32:520
54812640,0sleep00-21swapper/019:35:520
26723994527,16cyclictest0-21swapper/222:30:112
26721993415,17cyclictest0-21swapper/019:50:110
297122280,0sleep30-21swapper/322:42:083
250292260,1sleep110217-21diskmemload21:25:151
2672499221,19cyclictest0-21swapper/320:20:103
2672499210,19cyclictest0-21swapper/323:20:133
2672299201,18cyclictest0-21swapper/120:20:111
44842190,0sleep30-21swapper/323:26:013
277092190,0sleep20-21swapper/222:05:002
26723991916,2cyclictest14013-21kworker/u8:121:37:042
26724991811,5cyclictest27910-21sh21:29:043
26723991815,2cyclictest16118-21kworker/u8:120:22:042
2672399180,16cyclictest0-21swapper/220:35:112
289402170,0sleep00-21swapper/022:05:180
2672499171,3cyclictest0-21swapper/322:15:153
26723991714,2cyclictest23700-21kworker/u8:122:15:042
2672399170,12cyclictest0-21swapper/223:07:052
2672499163,8cyclictest5280-21chrt21:40:003
26724991613,2cyclictest18123-21kworker/u8:022:31:053
26724991613,2cyclictest14027-21kworker/u8:223:45:043
26724991612,2cyclictest14013-21kworker/u8:121:15:043
2672399162,2cyclictest0-21swapper/223:30:052
26723991613,2cyclictest9922-21kworker/u8:321:07:052
26723991613,2cyclictest6143-21kworker/u8:019:58:042
26723991613,2cyclictest5467-21kworker/u8:221:59:052
26723991613,2cyclictest29694-21kworker/u8:319:31:042
26723991613,2cyclictest28256-21kworker/u8:020:42:022
26723991613,2cyclictest23700-21kworker/u8:122:12:042
2672399160,2cyclictest0-21swapper/221:41:042
2672399160,13cyclictest27428-21head20:30:182
2672299160,14cyclictest0-21swapper/121:35:101
2672499151,2cyclictest0-21swapper/321:23:013
26724991512,2cyclictest28043-21kworker/u8:000:30:013
26724991512,2cyclictest19127-21kworker/u8:000:04:043
26724991512,2cyclictest1433-21kworker/u8:222:52:063
26724991512,2cyclictest1433-21kworker/u8:222:52:053
26724991510,3cyclictest30919-21uname23:55:183
2672499150,13cyclictest31528-21runrttasks22:45:053
26723991512,2cyclictest6402-21kworker/u8:023:12:012
26723991512,2cyclictest3323-21kworker/u8:020:57:052
26723991512,2cyclictest29694-21kworker/u8:319:42:042
26723991512,2cyclictest27351-21kworker/u8:123:52:012
26723991512,2cyclictest24048-21kworker/u8:221:04:042
26723991512,2cyclictest24048-21kworker/u8:220:49:042
26723991512,2cyclictest23226-21kworker/u8:200:32:042
26723991512,2cyclictest2205-21kworker/u8:123:35:042
26723991512,2cyclictest19127-21kworker/u8:000:02:042
26723991512,2cyclictest16118-21kworker/u8:120:09:052
26723991512,2cyclictest11850-21kworker/u8:122:42:042
2672399150,2cyclictest0-21swapper/200:05:042
2672399150,13cyclictest0-21swapper/222:54:562
2672399150,13cyclictest0-21swapper/222:54:562
2672399150,10cyclictest0-21swapper/200:15:042
2672199150,13cyclictest0-21swapper/021:45:200
2672199150,13cyclictest0-21swapper/021:14:000
26724991411,2cyclictest10217-21diskmemload23:30:203
26724991411,2cyclictest10217-21diskmemload22:22:513
26724991411,2cyclictest0-21swapper/323:04:303
26724991411,2cyclictest0-21swapper/323:04:303
26724991411,2cyclictest0-21swapper/322:00:103
26724991411,2cyclictest0-21swapper/320:00:103
2672499140,2cyclictest20831-21timerwakeupswit21:56:043
2672499140,12cyclictest26591-21sh23:50:313
2672499140,12cyclictest0-21swapper/323:15:163
2672499140,12cyclictest0-21swapper/300:05:113
26723991411,2cyclictest9922-21kworker/u8:321:11:042
26723991411,2cyclictest24546-21kworker/u8:223:24:052
26723991411,2cyclictest21265-21kworker/u8:119:11:052
26723991411,2cyclictest1900-21kworker/u8:100:37:042
26723991411,2cyclictest11850-21kworker/u8:122:59:042
26723991411,2cyclictest11850-21kworker/u8:122:59:042
26723991410,2cyclictest0-21swapper/200:25:192
2672399140,9cyclictest0-21swapper/200:20:052
2672399140,2cyclictest0-21swapper/223:28:362
2672399140,2cyclictest0-21swapper/222:21:022
2672399140,2cyclictest0-21swapper/220:50:052
2672399140,2cyclictest0-21swapper/220:10:162
2672399140,13cyclictest0-21swapper/222:39:262
2672399140,12cyclictest0-21swapper/223:18:042
2672399140,12cyclictest0-21swapper/221:52:432
2672299142,6cyclictest0-21swapper/123:40:001
2672299142,6cyclictest0-21swapper/120:40:001
2672299142,6cyclictest0-21swapper/100:35:011
2672299141,3cyclictest31569-21ssh00:32:181
2672299141,3cyclictest0-21swapper/122:55:421
2672299141,3cyclictest0-21swapper/122:55:411
2672299141,11cyclictest0-21swapper/121:55:141
2672299141,10cyclictest0-21swapper/121:00:001
2672299140,12cyclictest0-21swapper/100:01:411
2672199149,3cyclictest16407-21ssh21:15:490
2672199149,3cyclictest0-21swapper/023:05:010
2672199149,3cyclictest0-21swapper/023:05:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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