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2026-06-30 - 09:30
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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: 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 rackbslot6.osadl.org (updated Tue Jun 30, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911070,4ptp4l401ktimersoftd/320:55:593
462399630,3cyclictest13040-21ssh01:27:441
290862630,4sleep125-21ksoftirqd/100:05:181
106891600,1ptp4l401ktimersoftd/323:55:583
106891590,1ptp4l401ktimersoftd/301:15:303
462399580,4cyclictest26586-21ssh01:08:461
106891580,1ptp4l401ktimersoftd/323:49:523
247612570,1sleep20-21swapper/221:40:382
106891570,1ptp4l401ktimersoftd/323:04:573
106891560,1ptp4l401ktimersoftd/323:16:153
462399551,3cyclictest0-21swapper/101:17:161
462399541,38cyclictest12663-21apt-get21:15:371
4617995326,6cyclictest9-21ksoftirqd/002:05:410
263752530,2sleep30-21swapper/321:43:043
4617995223,10cyclictest9-21ksoftirqd/022:05:250
178932520,2sleep20-21swapper/201:32:442
106891520,1ptp4l401ktimersoftd/302:19:163
4617995121,7cyclictest9-21ksoftirqd/022:25:540
4617995022,5cyclictest9-21ksoftirqd/001:45:580
194422500,2sleep30-21swapper/323:20:563
462399495,31cyclictest18423-21taskset23:53:521
462399490,4cyclictest5983-21taskset22:07:241
4617994934,3cyclictest9-21ksoftirqd/023:25:550
4617994920,7cyclictest9-21ksoftirqd/022:50:530
41892494,33sleep20-21swapper/220:56:122
462399487,26cyclictest31546-21seq21:55:291
462399481,3cyclictest0-21swapper/122:51:571
462399480,4cyclictest25963-21ssh02:14:331
106891480,3ptp4l31056-21kworker/3:202:01:123
4617994719,4cyclictest9-21ksoftirqd/000:15:420
4617994622,4cyclictest9-21ksoftirqd/022:35:530
4617994618,7cyclictest9-21ksoftirqd/000:40:460
4617994618,5cyclictest9-21ksoftirqd/022:20:520
4617994618,5cyclictest9-21ksoftirqd/000:25:440
106891460,2ptp4l31056-21kworker/3:200:06:253
462399450,31cyclictest21157-21rm02:09:391
461799457,3cyclictest9-21ksoftirqd/023:55:280
4617994533,3cyclictest9-21ksoftirqd/023:20:490
4617994521,6cyclictest9-21ksoftirqd/000:09:480
4617994520,4cyclictest9-21ksoftirqd/023:07:520
4617994518,4cyclictest9-21ksoftirqd/000:49:540
106891450,1ptp4l401ktimersoftd/300:53:263
462399446,23cyclictest29947-21diskmemload00:48:371
462399441,3cyclictest14472-21ssh02:01:291
461799448,3cyclictest9-21ksoftirqd/002:21:000
461799444,7cyclictest9-21ksoftirqd/023:10:400
4617994421,3cyclictest9-21ksoftirqd/002:11:260
4617994417,5cyclictest9-21ksoftirqd/022:40:560
4617994417,4cyclictest9-21ksoftirqd/001:28:420
4617994416,4cyclictest9-21ksoftirqd/023:37:290
106891440,1ptp4l401ktimersoftd/301:49:573
106891440,1ptp4l401ktimersoftd/301:11:003
106891440,1ptp4l401ktimersoftd/301:11:003
461799437,3cyclictest9-21ksoftirqd/001:15:450
461799436,3cyclictest9-21ksoftirqd/001:05:290
461799433,10cyclictest9-21ksoftirqd/000:35:450
4617994316,5cyclictest9-21ksoftirqd/001:55:460
4617994316,4cyclictest9-21ksoftirqd/002:28:510
4617994315,6cyclictest9-21ksoftirqd/001:10:310
4617994315,6cyclictest9-21ksoftirqd/001:10:310
4617994315,4cyclictest9-21ksoftirqd/023:56:280
434424321,11sleep125-21ksoftirqd/120:58:131
106891430,2ptp4l31056-21kworker/3:201:37:093
462399422,33cyclictest2060-21apt-get00:10:381
461799429,3cyclictest9-21ksoftirqd/000:20:490
461799426,3cyclictest9-21ksoftirqd/023:40:460
461799425,8cyclictest9-21ksoftirqd/002:00:530
461799424,8cyclictest19648-21dpkg01:35:300
4617994218,5cyclictest9-21ksoftirqd/023:01:210
4617994217,4cyclictest9-21ksoftirqd/022:10:540
462399412,31cyclictest5283-21apt-get01:20:391
462399412,31cyclictest16036-21apt-get22:30:381
462399411,3cyclictest0-21swapper/123:19:391
461799416,8cyclictest9-21ksoftirqd/000:30:520
461799415,4cyclictest9-21ksoftirqd/023:31:490
461799415,4cyclictest9-21ksoftirqd/023:31:490
461799413,11cyclictest9-21ksoftirqd/000:50:430
4617994129,3cyclictest9-21ksoftirqd/001:05:360
4617994129,3cyclictest9-21ksoftirqd/000:11:100
4617994120,7cyclictest9-21ksoftirqd/021:50:440
4617994115,5cyclictest9-21ksoftirqd/001:38:320
462399403,30cyclictest18397-21apt-get22:35:361
462399402,32cyclictest17635-21apt-get23:20:371
462399402,30cyclictest22538-21apt-get23:25:391
462399402,29cyclictest26373-21apt-get00:35:381
462399400,4cyclictest22428-21ssh01:05:001
462399400,24cyclictest0-21swapper/123:03:291
461799407,3cyclictest9-21ksoftirqd/023:45:310
461799405,3cyclictest9-21ksoftirqd/000:00:400
461799404,8cyclictest9-21ksoftirqd/002:15:460
4617994028,3cyclictest9-21ksoftirqd/001:21:260
4617994020,6cyclictest9-21ksoftirqd/023:18:030
461799401,7cyclictest9-21ksoftirqd/022:50:260
4617994014,6cyclictest9-21ksoftirqd/000:55:490
461799400,7cyclictest9-21ksoftirqd/021:15:230
106891400,1ptp4l401ktimersoftd/322:40:433
106891400,1ptp4l401ktimersoftd/300:15:453
462399393,29cyclictest7832-21apt-get23:10:371
462399393,29cyclictest29264-21apt-get21:50:371
462399393,28cyclictest20765-21apt-get22:40:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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