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2025-12-02 - 10:55
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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 Dec 02, 2025 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2512737997334,19cyclictest2649454-21/usr/sbin/munin23:10:234
2512737997234,19cyclictest591rcuc/400:25:154
2512737997233,39cyclictest0-21swapper/422:51:534
2512737997133,19cyclictest2539262-21grep19:55:174
2512737997113,39cyclictest2548067-21sed20:10:194
2512739997032,38cyclictest0-21swapper/620:05:216
251273799697,60cyclictest2674574-21taskset23:52:014
2512737996951,18cyclictest601ktimers/419:44:574
251273799678,59cyclictest2683698-21kworker/u32:4+events_unbound00:14:354
2512737996729,38cyclictest0-21swapper/400:35:584
2512737996528,19cyclictest601ktimers/421:45:154
2512733996529,18cyclictest171ktimers/022:50:160
2512737996424,40cyclictest0-21swapper/419:15:054
2512737996423,39cyclictest6050ktimers/400:03:494
251273799635,39cyclictest110280-21munin-node22:10:114
2512737996345,18cyclictest0-21swapper/423:45:164
2512737996222,20cyclictest2583217-21taskset21:13:134
2512737996122,19cyclictest0-21swapper/400:32:284
2512737995921,0cyclictest144798rtkit-daemon22:29:534
251273799580,39cyclictest2631134-21ntpq22:35:234
251273799570,57cyclictest2555291-21awk20:25:014
2512737995536,19cyclictest875-21mta-sts-daemon19:13:374
2512737995536,19cyclictest875-21mta-sts-daemon19:13:374
2512737995517,19cyclictest2610295-21aten2.4-expect22:00:134
2512737995436,18cyclictest2583729-21gdbus21:25:074
2512737995419,35cyclictest0-21swapper/423:29:394
2512737995419,35cyclictest0-21swapper/420:47:574
2512737995419,34cyclictest0-21swapper/422:31:394
2512737995419,15cyclictest0-21swapper/420:39:074
2512737995419,15cyclictest0-21swapper/420:28:154
2512737995415,39cyclictest0-21swapper/423:55:094
2512737995319,34cyclictest0-21swapper/423:41:474
2512737995319,34cyclictest0-21swapper/422:58:554
2512737995319,34cyclictest0-21swapper/421:56:154
2512737995319,34cyclictest0-21swapper/421:30:234
2512737995319,15cyclictest0-21swapper/423:31:154
2512737995315,19cyclictest2654826-21wc23:20:014
2512737995315,19cyclictest2649203-21munin-run23:10:014
2512737995315,19cyclictest2578710-21df_inode21:05:154
2512737995315,19cyclictest2528475-21ntpq19:35:214
2512735995314,19cyclictest0-21swapper/220:30:182
2512739995214,19cyclictest0-21swapper/619:10:166
2512739995214,19cyclictest0-21swapper/619:10:166
2512739995213,39cyclictest0-21swapper/619:35:176
2512737995233,19cyclictest0-21swapper/422:42:274
2512737995233,19cyclictest0-21swapper/422:15:034
2512737995233,19cyclictest0-21swapper/421:35:354
2512737995233,19cyclictest0-21swapper/421:21:354
2512737995233,19cyclictest0-21swapper/420:57:154
2512737995233,19cyclictest0-21swapper/420:32:154
2512737995233,19cyclictest0-21swapper/420:05:394
2512737995233,19cyclictest0-21swapper/420:02:034
2512737995233,19cyclictest0-21swapper/400:09:474
2512737995233,0cyclictest0-21swapper/419:26:314
2512737995232,19cyclictest0-21swapper/421:01:274
2512737995214,19cyclictest0-21swapper/422:24:274
2512737995213,39cyclictest0-21swapper/422:45:274
2512737995213,39cyclictest0-21swapper/421:41:554
2512737995213,20cyclictest2584076-21acpi21:15:114
2512737995213,19cyclictest0-21swapper/423:39:014
2512735995214,19cyclictest0-21swapper/200:00:162
2512737995133,18cyclictest0-21swapper/420:44:474
2512737995133,18cyclictest0-21swapper/420:15:594
2512737995133,18cyclictest0-21swapper/419:47:594
2512737995133,18cyclictest0-21swapper/419:20:314
2512737995132,19cyclictest0-21swapper/423:20:514
2512737995132,19cyclictest0-21swapper/423:02:114
2512737995132,19cyclictest0-21swapper/422:08:594
2512737995132,19cyclictest0-21swapper/420:50:474
2512737995132,19cyclictest0-21swapper/419:30:474
2512737995132,19cyclictest0-21swapper/400:15:554
2512737995112,39cyclictest0-21swapper/400:20:154
2512735995112,39cyclictest0-21swapper/222:15:162
2512739995013,37cyclictest0-21swapper/622:40:176
2512737995031,19cyclictest0-21swapper/421:50:114
2512737995031,19cyclictest0-21swapper/419:50:034
2512735995012,19cyclictest0-21swapper/223:00:182
2512733995030,19cyclictest0-21swapper/023:00:180
2512735994829,19cyclictest0-21swapper/220:00:192
251273399468,19cyclictest0-21swapper/020:45:180
2512733994527,18cyclictest0-21swapper/019:50:170
251273399446,38cyclictest0-21swapper/022:10:150
251273599401,20cyclictest0-21swapper/200:05:162
251273999390,39cyclictest0-21swapper/622:00:166
251273999390,20cyclictest0-21swapper/622:55:176
251273599391,19cyclictest0-21swapper/219:50:172
251273599390,20cyclictest0-21swapper/222:30:172
251273999380,38cyclictest0-21swapper/619:15:176
251273399380,38cyclictest0-21swapper/020:35:160
251273399380,19cyclictest0-21swapper/023:20:170
251273399380,19cyclictest0-21swapper/000:30:150
251273999370,37cyclictest0-21swapper/622:35:186
251273599370,18cyclictest0-21swapper/221:40:192
2512733993736,1cyclictest2597638-21kworker/0:1+events22:26:270
2512733993735,2cyclictest2552034-21kworker/0:2+events20:56:550
251273399370,36cyclictest0-21swapper/021:00:180
251273999360,17cyclictest0-21swapper/619:20:176
251273999350,15cyclictest0-21swapper/623:05:196
251273599350,35cyclictest0-21swapper/222:05:162
251273599350,35cyclictest0-21swapper/219:35:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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