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2025-11-24 - 05:37
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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 rackfslot7.osadl.org (updated Mon Nov 24, 2025 00:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
636741999233,19cyclictest0-21swapper/522:53:015
636741997738,39cyclictest1089-21snmpd19:22:085
63674199760,36cyclictest741862-21taskset22:15:135
636741997538,18cyclictest658303-21ntpq19:45:215
636741997333,19cyclictest0-21swapper/522:12:205
636741997132,39cyclictest0-21swapper/521:45:295
636741997132,39cyclictest0-21swapper/521:02:415
636741997132,19cyclictest0-21swapper/522:35:535
636741997131,19cyclictest0-21swapper/521:56:495
636741997032,19cyclictest641194-21ntpq19:15:195
636741997031,18cyclictest0-21swapper/523:46:055
636741997031,18cyclictest0-21swapper/523:34:165
636741997031,18cyclictest0-21swapper/521:33:445
636741997031,0cyclictest0-21swapper/523:06:245
636741997030,19cyclictest0-21swapper/522:00:565
636741997030,19cyclictest0-21swapper/520:20:335
636741997030,19cyclictest0-21swapper/520:20:325
636741997030,19cyclictest0-21swapper/500:19:365
636741997030,19cyclictest0-21swapper/500:02:455
636741997030,18cyclictest663934-21ntpq19:55:205
636738997011,19cyclictest0-21swapper/222:40:152
636741996931,18cyclictest0-21swapper/500:09:405
636741996930,39cyclictest0-21swapper/523:42:085
636741996930,39cyclictest0-21swapper/523:24:085
636741996930,39cyclictest0-21swapper/519:50:485
636741996930,19cyclictest0-21swapper/520:59:165
636741996930,0cyclictest0-21swapper/520:33:575
636741996930,0cyclictest0-21swapper/520:33:565
636741996929,19cyclictest0-21swapper/519:37:295
636741996929,19cyclictest0-21swapper/519:10:085
636741996929,19cyclictest0-21swapper/500:31:455
636741996929,0cyclictest0-21swapper/500:37:405
636741996829,39cyclictest0-21swapper/522:09:295
636741996829,39cyclictest0-21swapper/519:42:045
636741996829,19cyclictest0-21swapper/521:37:535
636741996829,19cyclictest0-21swapper/500:23:245
636741996828,39cyclictest6950ktimers/523:29:295
636741996828,19cyclictest0-21swapper/520:50:335
636741996828,0cyclictest0-21swapper/519:28:575
636741996729,18cyclictest0-21swapper/523:14:125
636741996729,18cyclictest0-21swapper/521:54:245
636741996325,38cyclictest285-1kworker/5:1H+kblockd19:34:245
636741995917,40cyclictest3391172-21ntpd20:05:205
636741995815,40cyclictest787926-21taskset23:35:135
63674199580,20cyclictest0-21swapper/523:02:335
63674199580,19cyclictest0-21swapper/521:05:525
636741995719,38cyclictest0-21swapper/521:25:245
636742995637,19cyclictest0-21swapper/623:55:176
636741995617,20cyclictest764793-21taskset22:55:125
63674199560,18cyclictest0-21swapper/521:12:295
63674199550,55cyclictest0-21swapper/522:34:505
636741995414,39cyclictest0-21swapper/520:39:585
636741995414,19cyclictest0-21swapper/522:45:225
63674199540,15cyclictest0-21swapper/520:40:295
636736995436,18cyclictest251irq_work/021:50:170
636741995315,19cyclictest713107-21munin-run21:25:015
636741995314,39cyclictest0-21swapper/500:11:555
636738995318,15cyclictest0-21swapper/220:15:192
636738995318,15cyclictest0-21swapper/220:15:182
636737995315,19cyclictest0-21swapper/119:15:151
636741995210,19cyclictest680844-21ntpq20:25:205
636738995213,39cyclictest0-21swapper/220:35:172
636737995233,19cyclictest0-21swapper/123:50:171
636736995234,0cyclictest0-21swapper/020:10:170
636742995112,20cyclictest0-21swapper/623:45:166
636741995112,20cyclictest0-21swapper/520:18:015
636741995112,20cyclictest0-21swapper/520:18:005
636741995110,19cyclictest816020-21/usr/sbin/munin00:25:155
636741995110,19cyclictest816020-21/usr/sbin/munin00:25:145
636741995110,19cyclictest0-21swapper/520:12:535
636740995131,19cyclictest0-21swapper/423:50:174
636738995113,38cyclictest0-21swapper/222:50:172
636737995113,38cyclictest0-21swapper/120:45:151
636737995113,38cyclictest0-21swapper/120:35:171
636736995112,20cyclictest0-21swapper/023:50:170
636741995010,19cyclictest0-21swapper/523:50:355
636741995010,0cyclictest0-21swapper/520:50:005
636737995012,19cyclictest0-21swapper/121:10:161
636742994930,19cyclictest0-21swapper/621:55:166
636741994929,20cyclictest0-21swapper/523:18:485
636740994930,19cyclictest0-21swapper/420:10:184
636740994910,39cyclictest0-21swapper/420:40:164
63674199489,39cyclictest0-21swapper/521:40:125
636740994810,18cyclictest0-21swapper/421:25:194
636737994810,38cyclictest0-21swapper/121:20:161
636741994735,2cyclictest1088-21runrttasks22:25:135
63673799479,19cyclictest0-21swapper/123:10:171
636740994627,19cyclictest0-21swapper/421:45:174
636737994628,18cyclictest0-21swapper/122:05:151
63674199456,39cyclictest0-21swapper/522:40:065
63674099457,19cyclictest0-21swapper/421:40:154
636738994526,19cyclictest0-21swapper/222:30:152
63673699456,39cyclictest0-21swapper/019:50:170
63674199434,19cyclictest0-21swapper/522:20:125
636738994324,19cyclictest0-21swapper/219:35:162
63673699435,19cyclictest0-21swapper/021:35:160
63674299424,19cyclictest0-21swapper/600:05:206
63674199423,0cyclictest0-21swapper/523:55:025
636737994224,18cyclictest0-21swapper/121:15:171
63674199412,23cyclictest0-21swapper/521:15:255
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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