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2025-05-02 - 12:51
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot7.osadl.org (updated Fri May 02, 2025 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
368769999392392,0cyclictest27350irq/126-ahci[0000:00:17.0]20:03:212
368771399387387,0cyclictest0-21swapper/1422:54:286
368771399382381,0cyclictest0-21swapper/1422:35:336
368766499348345,2cyclictest4150191-21kworker/0:1+events22:54:280
368769799346343,2cyclictest3857926-21kworker/u64:7+events_unbound22:54:2815
3687713993430,342cyclictest0-21swapper/1420:03:226
368766499343339,3cyclictest4150191-21kworker/0:1+events22:35:340
368771799341340,0cyclictest0-21swapper/1522:54:287
368771799335334,0cyclictest0-21swapper/1522:35:337
368769299321319,1cyclictest27013-21Isolated20:43:1514
368766899318318,0cyclictest0-21swapper/122:54:281
368769299312312,0cyclictest0-21swapper/822:35:3414
368769299303299,3cyclictest43375-21Renderer19:26:4914
368766499292283,8cyclictest10189-21Xorg23:37:590
3687717992911,1cyclictest0-21swapper/1500:39:567
368766499291282,8cyclictest43375-21Renderer19:51:200
368769799290283,6cyclictest43375-21Renderer21:05:2715
368769799290283,6cyclictest43375-21Renderer21:05:2615
368769799290283,6cyclictest43375-21Renderer00:14:3415
368766499290283,6cyclictest10189-21Xorg21:18:360
368766499290282,7cyclictest43375-21Renderer00:04:110
368766499290279,10cyclictest43375-21Renderer22:44:240
3687664992900,283cyclictest0-21swapper/020:54:010
368771199289283,5cyclictest10189-21Xorg21:19:465
368769799289282,6cyclictest25620-21Renderer22:33:2015
368766899289283,5cyclictest43375-21Renderer21:13:251
368766499289282,6cyclictest10189-21Xorg21:04:590
368766499289281,7cyclictest10189-21Xorg19:29:000
368766499289280,8cyclictest10189-21Xorg19:58:000
3687664992890,288cyclictest0-21swapper/020:14:190
368771799288286,0cyclictest0-21swapper/1519:12:057
368770799288281,6cyclictest10189-21Xorg23:45:304
368770799288281,6cyclictest10189-21Xorg23:45:304
368770299288282,5cyclictest10189-21Xorg19:39:163
3687697992880,1cyclictest0-21swapper/921:18:5615
368769299288282,5cyclictest10189-21Xorg22:20:5214
368767899288281,6cyclictest43375-21Renderer00:38:0710
368767499288282,5cyclictest43375-21Renderer21:27:109
3687668992880,283cyclictest25390-21IPDL20:43:151
368766499288282,5cyclictest10189-21Xorg23:16:590
368769999287281,5cyclictest43375-21Renderer21:56:322
368769799287282,5cyclictest10189-21Xorg23:34:1915
368769799287282,4cyclictest10189-21Xorg23:10:4715
368769799287282,4cyclictest10189-21Xorg21:57:2015
368769299287280,6cyclictest43375-21Renderer21:26:4914
368768999287283,3cyclictest43375-21Renderer00:30:2513
368768699287282,4cyclictest25620-21Renderer19:47:2212
368768699287281,5cyclictest10189-21Xorg20:05:2012
368767499287282,4cyclictest10189-21Xorg22:00:409
368767299287282,4cyclictest10189-21Xorg23:46:598
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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