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2026-04-28 - 14:22
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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
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Tue Apr 28, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233079985744517,4046cyclictest12519-21kworker/0:019:24:300
233079983364174,4119cyclictest29503-21kworker/0:220:58:230
233079978904150,3717cyclictest12519-21kworker/0:019:14:120
233079974994029,3410cyclictest12519-21kworker/0:019:37:330
233079974413832,3594cyclictest11705-21kworker/0:022:40:430
233079972524011,3190cyclictest3518-21kworker/0:120:43:320
233079969903708,3259cyclictest3518-21kworker/0:120:45:360
233079968873668,3208cyclictest12519-21kworker/0:019:19:400
233079967353699,3025cyclictest3518-21kworker/0:119:49:000
233079964203497,2872cyclictest3276-21kworker/0:222:38:480
233079963823481,2850cyclictest3518-21kworker/0:119:59:190
233079963143375,2924cyclictest3518-21kworker/0:120:01:350
233079961373352,2734cyclictest1346-21kworker/0:021:09:400
233079956752925,2727cyclictest12519-21kworker/0:019:29:070
233079951762721,2444cyclictest12519-21kworker/0:019:30:420
233079938482331,1502cyclictest1346-21kworker/0:021:11:480
226922777184,202sleep00-21swapper19:05:330
233079956055,491cyclictest20696-21ssh23:02:420
233079951626,419cyclictest15958-21ls22:51:230
233079951354,398cyclictest3583-21diskmemload22:03:440
233079951329,414cyclictest5099-21chrt22:26:440
233079950955,440cyclictest15393-21ssh00:09:260
233079950855,439cyclictest14665-21ssh22:49:170
233079950830,407cyclictest17806-21sed20:20:200
233079950755,438cyclictest23047-21ssh21:53:440
233079950754,439cyclictest6752-21ssh23:47:420
233079950754,439cyclictest19118-21ssh00:16:520
233079950553,439cyclictest29490-21ssh22:09:090
233079949726,400cyclictest30199-21runrttasks20:52:540
233079948854,372cyclictest4894-21runrttasks22:15:550
233079948766,244cyclictest28207-21cut23:21:280
233079948652,374cyclictest19182-21munin-node21:46:200
233079947755,362cyclictest3583-21diskmemload21:23:520
233079947631,384cyclictest985-21kworker/u2:122:34:490
233079947455,359cyclictest3583-21diskmemload23:55:460
233079947455,358cyclictest3583-21diskmemload00:10:330
233079947355,357cyclictest3583-21diskmemload23:36:080
233079947330,372cyclictest14731-21seq20:10:480
233079947255,356cyclictest3583-21diskmemload23:26:140
233079947154,356cyclictest3583-21diskmemload23:17:150
233079947152,359cyclictest3583-21diskmemload21:36:060
233079947055,355cyclictest14797-21ssh21:35:040
233079947055,354cyclictest3583-21diskmemload23:11:040
233079947055,233cyclictest3583-21diskmemload22:20:190
233079947054,346cyclictest3583-21diskmemload21:18:150
233079946754,352cyclictest4363-21ssh23:41:400
233079946654,350cyclictest22869-21cat23:10:060
233079946155,346cyclictest31634-21ssh22:14:160
233079946128,418cyclictest25441-21ssh00:32:120
233079945883,361cyclictest13-21rcuc/021:45:020
233079945854,227cyclictest3583-21diskmemload00:25:020
233079945129,398cyclictest4297-21seq19:43:020
233079945128,408cyclictest7668-21df_inode23:50:350
233079944826,407cyclictest10917-21sh21:25:290
233079944754,87cyclictest3176-21upstart-udev-br00:26:240
23307994475,373cyclictest20255-21strings20:25:470
233079944727,405cyclictest27741-21chrt00:38:270
233079944569,363cyclictest12325-21ssh00:01:070
233079944456,374cyclictest28168-21munin-node00:40:150
233079943245,373cyclictest11-21ksoftirqd/019:50:210
233079942970,300cyclictest18791-21ssh22:58:490
233079941755,348cyclictest3583-21diskmemload21:59:110
233079941325,373cyclictest442-21rm23:33:230
233079941130,319cyclictest22681-21seq20:31:580
233079940952,236cyclictest902-21jbd2/sda1-820:05:040
233079938553,318cyclictest16557-21strings20:15:470
233079938036,344cyclictest0-21swapper21:04:450
233079936228,319cyclictest23338-21sed20:35:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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