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2026-06-04 - 17:42
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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
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Thu Jun 04, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1512099103565412,4940cyclictest1093-21kworker/0:207:27:580
151209996955161,4523cyclictest23653-21kworker/0:007:38:290
151209988534561,4288cyclictest2187-21kworker/0:108:24:170
151209984894218,4211cyclictest23653-21kworker/0:007:47:440
151209982304113,4102cyclictest1093-21kworker/0:207:14:100
151209979144265,3626cyclictest24559-21kworker/0:009:18:540
151209977663857,3895cyclictest15227-21kworker/0:208:42:340
151209970533752,3297cyclictest15227-21kworker/0:208:54:190
151209967763778,2947cyclictest1093-21kworker/0:207:18:570
151209966953677,3007cyclictest24559-21kworker/0:009:04:520
151209965753681,2843cyclictest2187-21kworker/0:108:32:480
151209963083441,2824cyclictest2187-21kworker/0:108:12:550
151209959283191,2726cyclictest1093-21kworker/0:207:20:200
151209958833230,2602cyclictest2187-21kworker/0:108:02:440
149242842183,205sleep00-21swapper07:09:000
15120995465,249cyclictest28125-21diskmemload12:04:400
151209952022,436cyclictest28125-21diskmemload12:19:350
151209951925,431cyclictest28641-21sed10:25:400
151209951323,427cyclictest9248-21memory10:55:540
151209951126,423cyclictest6092-21proc_pri09:31:410
151209951064,260cyclictest13-21rcuc/007:55:370
151209951053,396cyclictest28125-21diskmemload09:55:270
151209950022,406cyclictest19973-21hddtemp_smartct08:45:460
151209948652,420cyclictest17902-21munin-node12:36:390
151209948452,418cyclictest28125-21diskmemload11:06:460
151209948353,415cyclictest28125-21diskmemload09:43:500
151209948324,398cyclictest12253-21rm11:02:470
151209947655,408cyclictest28125-21diskmemload11:34:300
151209947653,363cyclictest18835-21ssh11:19:030
151209947552,353cyclictest28125-21diskmemload09:10:120
151209947526,387cyclictest15236-21ssh12:27:300
151209947254,359cyclictest28125-21diskmemload12:43:530
151209947253,405cyclictest28125-21diskmemload10:07:310
151209947038,248cyclictest28125-21diskmemload10:12:500
151209946353,351cyclictest28125-21diskmemload11:59:450
151209946326,422cyclictest15387-21awk11:10:400
151209945953,230cyclictest28125-21diskmemload10:22:010
151209945866,97cyclictest11-21ksoftirqd/009:26:230
151209945662,380cyclictest345450irq/10-yenta12:12:540
151209945553,343cyclictest8174-21ssh10:53:450
151209945353,227cyclictest4894-21runrttasks10:36:300
151209945155,382cyclictest28125-21diskmemload11:26:280
151209945126,400cyclictest2176-21ssh10:40:200
15120994511,435cyclictest12651-21ssh09:46:550
15120994501,435cyclictest2436-21ssh09:24:440
15120994491,434cyclictest15248-21ssh09:54:350
151209944870,365cyclictest12733-21missed_timers12:21:250
15120994481,434cyclictest653-21ssh11:53:260
151209944759,375cyclictest24437-21sendmail-msp09:00:020
151209944724,408cyclictest18819-21proc_pri10:01:390
15120994464,428cyclictest26255-21expr11:35:570
151209944269,88cyclictest28125-21diskmemload09:38:260
15120994410,381cyclictest19383-21cpuspeed_turbos11:20:310
15120994403,376cyclictest4272-21snmpd11:49:160
151209943724,397cyclictest30470-21sed10:30:270
15120994341,373cyclictest7157-21ssh12:08:590
15120994341,373cyclictest5896-21ssh10:47:500
15120994341,373cyclictest32301-31copy07:54:440
15120994341,373cyclictest17329-21ssh12:32:300
15120994291,358cyclictest4272-21snmpd08:16:440
15120994271,366cyclictest28125-21diskmemload10:16:110
151209941153,336cyclictest4894-21runrttasks11:42:150
151209940936,358cyclictest27076-21awk07:40:200
151209939055,321cyclictest23985-21strings07:30:450
151209937470,304cyclictest0-21swapper09:06:520
151209935792,252cyclictest12447-21find08:25:330
151209935493,249cyclictest11-21ksoftirqd/008:05:400
151209935423,316cyclictest17011-21sendmail-msp08:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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