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2026-06-16 - 04:42
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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 Tue Jun 16, 2026 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3260973991079,19cyclictest0-21swapper/220:25:162
3260974998124,38cyclictest776-21dbus-daemon20:45:023
326097799790,19cyclictest0-21swapper/620:25:166
3260974997314,39cyclictest3424344-21ls00:05:143
3260974997233,39cyclictest5150ktimers/323:53:083
3260974997233,39cyclictest5150ktimers/323:53:083
3260974997033,1cyclictest0-21swapper/300:23:043
3260974997032,38cyclictest870-21mta-sts-daemon22:22:063
326097499668,39cyclictest3379823-21grep22:45:003
3260974996526,19cyclictest0-21swapper/322:55:303
326097499613,39cyclictest3408323-21awk23:35:173
326097499612,40cyclictest3421181-21latency_hist00:00:023
326097499610,59cyclictest3432074-21latency_hist00:20:023
326097499610,40cyclictest3422411-21gcc00:00:203
3260974996020,19cyclictest0-21swapper/321:35:043
3260974995919,19cyclictest0-21swapper/320:50:043
3260974995819,18cyclictest0-21swapper/300:36:203
3260974995818,19cyclictest3260970-21cyclictest00:28:483
3260974995816,40cyclictest236199-21snmpd23:06:163
326097499580,39cyclictest3394410-21df23:10:143
326097499580,39cyclictest3377122-21grep22:40:013
3260974995719,35cyclictest0-21swapper/323:34:163
3260974995719,35cyclictest0-21swapper/323:34:163
3260974995717,19cyclictest5150ktimers/319:16:323
3260974995715,19cyclictest1086-21runrttasks00:13:163
3260974995633,19cyclictest0-21swapper/322:26:503
3260974995619,35cyclictest0-21swapper/319:20:323
3260974995619,16cyclictest0-21swapper/321:06:203
3260974995617,20cyclictest3352397-21/usr/sbin/munin21:55:163
3260974995617,18cyclictest3260970-21cyclictest23:22:453
326097499560,37cyclictest3281227-21fschecks_count19:45:143
3260974995536,19cyclictest236199-21snmpd23:19:143
3260974995533,19cyclictest0-21swapper/321:17:183
3260974995533,19cyclictest0-21swapper/319:32:233
3260974995519,15cyclictest0-21swapper/322:12:573
3260974995519,15cyclictest0-21swapper/321:20:283
3260974995514,19cyclictest0-21swapper/320:48:243
3260977995435,19cyclictest0-21swapper/620:00:166
3260977995414,20cyclictest0-21swapper/623:00:166
3260974995435,18cyclictest0-21swapper/321:40:223
3260974995433,19cyclictest0-21swapper/322:05:423
3260974995433,19cyclictest0-21swapper/321:26:423
3260974995433,18cyclictest0-21swapper/322:52:543
3260974995433,18cyclictest0-21swapper/320:56:343
3260974995433,18cyclictest0-21swapper/319:27:143
3260974995432,19cyclictest0-21swapper/322:18:023
3260974995432,19cyclictest0-21swapper/319:38:023
3260974995419,14cyclictest0-21swapper/320:16:243
3260974995414,39cyclictest3414313-21ntp_states23:45:203
3260974995414,39cyclictest3414313-21ntp_states23:45:203
3260974995414,19cyclictest0-21swapper/323:02:523
3260974995414,19cyclictest0-21swapper/322:00:323
3260974995414,19cyclictest0-21swapper/320:10:083
3260974995332,19cyclictest0-21swapper/322:33:023
3260974995332,19cyclictest0-21swapper/319:41:423
3260974995332,18cyclictest3260970-21cyclictest20:09:463
3260974995330,19cyclictest0-21swapper/320:35:243
3260974995313,19cyclictest0-21swapper/321:02:243
3260973995319,14cyclictest0-21swapper/223:10:162
3260978995213,20cyclictest0-21swapper/721:55:147
3260974995231,18cyclictest0-21swapper/300:34:583
3260974995214,19cyclictest3306793-21ntp_states20:30:203
3260977995113,19cyclictest0-21swapper/622:35:176
3260977995112,19cyclictest0-21swapper/621:35:176
3260974995132,19cyclictest3289631-21df20:00:143
3260974995131,18cyclictest0-21swapper/323:41:583
3260974995131,18cyclictest0-21swapper/323:41:583
3260978995012,19cyclictest0-21swapper/719:20:157
3260974995011,39cyclictest0-21swapper/319:11:103
3260974994931,18cyclictest0-21swapper/320:24:363
3260974994910,39cyclictest0-21swapper/321:53:543
3260977994810,19cyclictest0-21swapper/600:35:156
3260974994830,18cyclictest0-21swapper/320:28:483
326097899478,38cyclictest0-21swapper/722:00:147
326097799468,19cyclictest0-21swapper/623:15:166
326097799457,19cyclictest0-21swapper/621:00:156
326097499457,19cyclictest3330202-21latency_hist21:15:023
3260974994526,0cyclictest0-21swapper/323:25:183
326097899445,39cyclictest0-21swapper/700:25:147
3260978994325,18cyclictest871ktimers/723:25:177
3260974994325,18cyclictest0-21swapper/319:53:503
326097499423,39cyclictest3348188-21ntpq21:45:203
326097799413,19cyclictest0-21swapper/621:45:166
326097799413,19cyclictest0-21swapper/620:15:176
326097499412,39cyclictest0-21swapper/319:58:503
3260978994021,19cyclictest0-21swapper/721:45:167
3260977994021,19cyclictest771rcuc/621:55:146
3260977993920,19cyclictest79-21ksoftirqd/620:20:166
326097799390,39cyclictest79-21ksoftirqd/619:50:156
326097499391,19cyclictest0-21swapper/322:46:383
326097399390,20cyclictest0-21swapper/200:10:162
3260977993819,19cyclictest771rcuc/621:50:166
3260974993820,18cyclictest0-21swapper/321:30:283
326097899370,18cyclictest0-21swapper/719:25:167
3260978993636,0cyclictest0-21swapper/722:05:167
326097899360,36cyclictest0-21swapper/719:55:167
326097799360,17cyclictest0-21swapper/622:55:166
3260978993516,19cyclictest0-21swapper/722:50:157
326097899350,15cyclictest0-21swapper/721:50:167
326097899350,15cyclictest0-21swapper/720:40:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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