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2026-06-23 - 01:20
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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 Jun 22, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4046160999315,59cyclictest4105967-21threads08:55:230
4046160999214,59cyclictest25613-21/usr/sbin/munin12:25:110
4046160999113,59cyclictest4113077-21diskstats09:10:150
4046160997336,18cyclictest171ktimers/007:10:190
4046160997335,19cyclictest4088707-21ntpq08:25:210
4046160997335,19cyclictest4088707-21ntpq08:25:210
4046160997133,38cyclictest4189095-21munin-run11:30:010
4046160997011,40cyclictest4097189-21collect208:40:190
4046160997011,39cyclictest4183833-21dpkg11:20:090
4046160996830,38cyclictest0-21swapper/010:36:490
4046160996829,19cyclictest0-21swapper/011:30:530
4046160996828,0cyclictest0-21swapper/009:25:210
4046160996727,19cyclictest1750ktimers/007:43:050
404616099664,40cyclictest1086-21runrttasks09:22:290
4046167996527,19cyclictest101550irq/39-eno2-TxRx-008:50:167
4046160996526,39cyclictest0-21swapper/010:01:110
4046160996526,39cyclictest0-21swapper/007:48:050
4046160996324,19cyclictest0-21swapper/008:17:420
4046160996223,19cyclictest0-21swapper/010:46:530
4046160996123,18cyclictest0-21swapper/011:06:250
4046160996122,20cyclictest0-21swapper/009:51:210
4046160996122,19cyclictest0-21swapper/010:59:530
4046160996122,19cyclictest0-21swapper/010:50:090
4046160996122,19cyclictest0-21swapper/008:50:490
4046160996121,22cyclictest0-21swapper/008:33:450
4046160996121,19cyclictest0-21swapper/007:19:210
4046160996021,19cyclictest0-21swapper/011:53:050
4046160996020,21cyclictest0-21swapper/008:39:370
404616099601,39cyclictest4020051-21kworker/0:2+ice07:30:110
404616099600,59cyclictest4075970-21taskset08:03:190
4046160995919,40cyclictest319-21ice-ptp-0000:f4:00.012:35:150
4046160995919,40cyclictest319-21ice-ptp-0000:f4:00.012:35:150
4046160995819,39cyclictest171ktimers/011:48:200
4046165995718,39cyclictest0-21swapper/510:32:335
4046164995710,44cyclictest0-21swapper/411:20:134
4046160995618,19cyclictest31750irq/70-ice-0000:f4:00.0:misc11:19:310
4046160995618,0cyclictest0-21swapper/007:39:350
4046160995616,39cyclictest21166-21ntpq12:15:190
4046160995519,35cyclictest0-21swapper/008:11:270
4046160995517,38cyclictest31750irq/70-ice-0000:f4:00.0:misc11:58:590
4046160995516,20cyclictest4125178-21timerandwakeup09:30:210
4046160995436,18cyclictest4137121-21kworker/u32:4+flush-8:010:21:350
4046160995436,18cyclictest319-21ice-ptp-0000:f4:00.010:27:150
4046160995435,19cyclictest31750irq/70-ice-0000:f4:00.0:misc12:06:270
4046160995419,35cyclictest0-21swapper/010:17:270
4046160995419,34cyclictest0-21swapper/008:23:350
4046160995419,15cyclictest0-21swapper/012:24:230
4046160995419,15cyclictest0-21swapper/011:36:070
4046160995419,15cyclictest0-21swapper/009:05:440
4046160995419,15cyclictest0-21swapper/008:08:120
4046160995419,15cyclictest0-21swapper/007:58:070
4046160995419,15cyclictest0-21swapper/007:26:350
4046160995415,39cyclictest0-21swapper/008:45:110
4046160995414,20cyclictest3444681-21sshd12:14:300
4046160995335,18cyclictest873-21mta-sts-daemon09:02:170
4046160995334,19cyclictest0-21swapper/009:15:030
4046160995319,34cyclictest0-21swapper/010:14:030
4046160995319,34cyclictest0-21swapper/009:55:270
4046160995319,15cyclictest0-21swapper/012:33:030
4046160995319,15cyclictest0-21swapper/011:02:590
4046160995319,15cyclictest0-21swapper/009:40:070
4046160995315,19cyclictest31750irq/70-ice-0000:f4:00.0:misc10:30:270
4046160995314,39cyclictest0-21swapper/011:13:160
4046160995314,39cyclictest0-21swapper/010:44:390
4046160995314,39cyclictest0-21swapper/009:46:390
4046160995314,39cyclictest0-21swapper/009:39:350
4046160995314,39cyclictest0-21swapper/007:22:230
4046166995213,39cyclictest0-21swapper/612:35:136
4046166995213,39cyclictest0-21swapper/612:35:136
4046160995214,19cyclictest31750irq/70-ice-0000:f4:00.0:misc10:05:550
4046160995213,39cyclictest0-21swapper/012:04:550
4046167995113,19cyclictest0-21swapper/710:45:157
4046164995113,19cyclictest0-21swapper/409:35:164
4046163995113,19cyclictest0-21swapper/310:10:163
4046160995133,18cyclictest0-21swapper/011:40:430
4046160995132,19cyclictest0-21swapper/007:53:550
4046167995012,19cyclictest0-21swapper/709:35:157
4046164995012,19cyclictest0-21swapper/412:30:154
4046167994910,39cyclictest0-21swapper/708:25:177
4046167994910,39cyclictest0-21swapper/708:25:177
4046164994911,19cyclictest0-21swapper/408:45:164
404616799479,19cyclictest0-21swapper/710:00:157
4046166994729,0cyclictest0-21swapper/607:50:166
404616499467,19cyclictest0-21swapper/409:20:154
404616399457,19cyclictest0-21swapper/312:35:143
404616399457,19cyclictest0-21swapper/312:35:133
404616699446,19cyclictest0-21swapper/608:20:156
404616499434,19cyclictest0-21swapper/408:10:184
404616799423,39cyclictest0-21swapper/712:30:167
404616399423,38cyclictest4125806-21kworker/6:009:50:123
404616699414,18cyclictest0-21swapper/607:25:176
404616499413,19cyclictest0-21swapper/407:20:164
4046164994122,19cyclictest0-21swapper/409:15:164
4046167993920,19cyclictest0-21swapper/707:40:157
404616399390,20cyclictest0-21swapper/311:35:173
404616399390,20cyclictest0-21swapper/310:45:153
4046162993921,18cyclictest0-21swapper/211:10:152
404616799370,37cyclictest0-21swapper/707:10:167
4046164993737,0cyclictest4037439-21kworker/4:0+events09:45:194
4046164993636,0cyclictest4037439-21kworker/4:0+events11:15:194
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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