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2025-07-12 - 12:54
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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 100 highest latencies:
System rack0slot7.osadl.org (updated Sat Jul 12, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21624872197176,13sleep60-21swapper/619:07:2312
21623792190181,6sleep40-21swapper/419:06:3210
21627592182162,13sleep50-21swapper/519:09:3111
21625912167145,14sleep70-21swapper/719:08:1213
21624342164142,14sleep110-21swapper/1119:06:563
21627072159137,14sleep120-21swapper/1219:09:064
21625332155134,14sleep90-21swapper/919:07:4215
21624832151131,13sleep30-21swapper/319:07:199
21628032146125,14sleep80-21swapper/819:09:5014
21627472145123,14sleep10-21swapper/119:09:261
21456302136114,14sleep100-21swapper/1019:05:012
316472921110,0sleep90-21swapper/923:39:2215
2162643211143,59sleep140-21swapper/1419:08:346
2162330211042,56sleep150-21swapper/1519:06:117
216278728885,1sleep00-21swapper/019:09:410
216277628077,1sleep130-21swapper/1319:09:395
2163305997511,61cyclictest0-21swapper/122:16:151
216332799718,17cyclictest1610035-21WRWorkerLP#622:54:0513
216330599703,12cyclictest9400-21Xorg23:36:401
2163305996929,37cyclictest0-21swapper/100:14:431
216234126963,3sleep20-21swapper/219:06:148
2163330996539,26cyclictest0-21swapper/819:29:5514
216331999656,16cyclictest0-21swapper/500:31:4111
216330599645,11cyclictest0-21swapper/100:04:191
216330599643,9cyclictest3223275-21dav1d-worker23:53:381
216333799621,4cyclictest0-21swapper/1023:23:192
2163330996236,26cyclictest0-21swapper/821:26:0714
2163312996228,28cyclictest9400-21Xorg21:09:569
2163319996110,16cyclictest1610088-21WRScene~ilder#100:04:2111
2163312996127,30cyclictest1610514-21StyleThread#100:14:449
2163312996120,39cyclictest9400-21Xorg23:49:219
216333799603,9cyclictest0-21swapper/1000:08:392
2163330996060,0cyclictest0-21swapper/823:43:1014
216331299604,50cyclictest2589156-21dav1d-worker21:04:229
216330599605,5cyclictest9677-21gnome-shell23:21:461
2163330995934,25cyclictest0-21swapper/821:16:3414
2163327995920,19cyclictest3411944-21x0vncserver00:15:1013
2163327995920,19cyclictest3411944-21x0vncserver00:15:0913
216331999596,18cyclictest9677-21gnome-shell23:40:5011
216331299592,6cyclictest0-21swapper/322:08:459
216331299592,4cyclictest0-21swapper/320:55:509
216330599590,3cyclictest0-21swapper/121:07:591
216333799584,50cyclictest1281ktimers/1022:54:192
216333799581,10cyclictest9677-21gnome-shell22:07:492
2163330995756,0cyclictest0-21swapper/821:40:1114
2163348995653,2cyclictest0-21swapper/1323:01:335
2163348995653,2cyclictest0-21swapper/1323:01:335
2163341995647,6cyclictest0-21swapper/1121:47:033
2163333995636,18cyclictest1609957-21firefox22:15:1215
2163330995656,0cyclictest0-21swapper/821:51:1414
216335699551,25cyclictest0-21swapper/1523:28:307
216335699551,25cyclictest0-21swapper/1523:28:307
2163317995537,3cyclictest0-21swapper/423:42:5610
216331299556,33cyclictest9686-21gdbus21:48:109
216331299554,9cyclictest0-21swapper/320:52:099
2163309995537,17cyclictest0-21swapper/223:29:168
2163309995537,17cyclictest0-21swapper/223:29:168
216330599554,47cyclictest0-21swapper/123:47:201
2163341995438,14cyclictest0-21swapper/1119:16:093
216333799540,10cyclictest3411944-21x0vncserver21:11:022
216333399545,44cyclictest11218-21Softwar~cThread22:07:0815
216333099541,27cyclictest9400-21Xorg19:30:1714
2163327995423,7cyclictest3781857-21gdbus22:04:0213
2163319995416,6cyclictest2871379-21dav1d-worker22:53:4611
216331299541,17cyclictest2570559-21Isolated17:40:099
216333799532,22cyclictest92350irq/162-i91523:32:132
2163337995319,32cyclictest92350irq/162-i91521:49:202
2163333995319,33cyclictest0-21swapper/921:03:2115
2163330995327,26cyclictest0-21swapper/800:36:4914
216331999532,28cyclictest4115135-21WRScene~ilder#119:29:5911
216331799538,17cyclictest1610029-21WRWorkerLP#022:54:1510
216330599533,7cyclictest3301368-21dav1d-worker00:15:011
216330599533,7cyclictest3301368-21dav1d-worker00:15:011
216334899528,39cyclictest2995523-21IPC5
216333799526,43cyclictest1609957-21firefox00:32:082
216333799524,5cyclictest2570559-21Isolated17:40:092
216333799522,46cyclictest2552394-21TaskCon~ller2
2163337995217,28cyclictest92350irq/162-i91519:10:502
2163337995217,28cyclictest92350irq/162-i91519:10:502
2163330995236,14cyclictest0-21swapper/823:33:0714
2163330995232,17cyclictest0-21swapper/822:04:1114
216333099520,37cyclictest0-21swapper/821:23:5914
2163337995115,35cyclictest9707-21at-spi2-registr23:48:392
216333399514,44cyclictest0-21swapper/920:52:0915
2163330995132,16cyclictest0-21swapper/821:45:5514
2163330995122,26cyclictest0-21swapper/819:45:1514
2163319995132,10cyclictest0-21swapper/520:44:4811
2163319995132,10cyclictest0-21swapper/520:44:4811
2163319995124,24cyclictest1609957-21firefox22:16:1811
2163319995111,23cyclictest1609957-21firefox23:03:0111
2163319995111,23cyclictest1609957-21firefox23:03:0011
216331299516,14cyclictest3411944-21x0vncserver21:56:069
216331299514,44cyclictest0-21swapper/323:37:499
216331299513,46cyclictest1609986-21Timer00:08:399
2163312995113,13cyclictest161011310AudioIP~allback23:57:529
216331299510,13cyclictest1155545-21Isolated17:40:099
2163348995049,1cyclictest0-21swapper/1323:10:295
2163348995043,6cyclictest1591ktimers/1300:04:115
2163337995011,36cyclictest1609983-21glean.dispatche22:14:362
216333399501,5cyclictest9677-21gnome-shell21:57:0515
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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