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2026-07-27 - 13:38
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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 Mon Jul 27, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191989994724866,4601cyclictest8908-21kworker/0:119:20:460
191989988614676,4182cyclictest8908-21kworker/0:119:12:320
191989987794525,4244cyclictest8908-21kworker/0:119:15:500
173462748185,204sleep00-21swapper19:05:070
191989951932,425cyclictest5714-21ssh22:39:540
191989951567,388cyclictest9404-21fschecks_count22:46:460
191989950854,440cyclictest7788-21ssh21:28:410
191989950166,375cyclictest31789-21diskmemload00:19:400
191989949064,249cyclictest1399-21sed22:30:050
191989949037,393cyclictest31789-21diskmemload21:30:260
191989948634,439cyclictest29315-21ssh23:34:590
191989947192,365cyclictest11-21ksoftirqd/022:21:480
191989947137,434cyclictest0-21swapper22:07:470
191989946957,351cyclictest31789-21diskmemload21:36:520
191989946552,353cyclictest14853-21ssh21:45:310
191989946132,414cyclictest12098-21wc00:10:060
191989945871,373cyclictest1629-21fschecks_count19:46:110
191989945835,399cyclictest25479-21ssh22:10:270
191989945733,363cyclictest1806-21df_abs23:45:420
191989945466,365cyclictest26349-21python19:25:530
191989945370,371cyclictest12-21rcu_preempt22:59:450
191989944771,362cyclictest25222-21awk20:50:390
191989944733,391cyclictest138802chrt20:20:300
191989944680,352cyclictest31789-21diskmemload23:01:370
191989944669,92cyclictest13-21rcuc/019:35:170
191989944669,363cyclictest11-21ksoftirqd/022:40:440
191989944536,349cyclictest11765-21kworker/u2:000:33:020
191989944272,311cyclictest7186-21ssh23:57:130
191989944180,348cyclictest351950irq/10-yenta00:01:460
191989943852,372cyclictest5557-21runrttasks21:23:140
191989943754,369cyclictest31789-21diskmemload21:15:570
191989943663,88cyclictest4924-21runrttasks23:20:530
19198994351,374cyclictest0-21swapper22:19:480
19198994351,374cyclictest0-21swapper20:45:140
191989943347,88cyclictest32300-21ssh23:40:540
191989943171,301cyclictest25832-21ssh00:41:050
191989942870,299cyclictest18038-21kworker/u2:023:07:530
191989942453,311cyclictest27148-21ssh23:29:510
191989942453,187cyclictest17995-21ssh00:22:470
191989942256,352cyclictest31789-21diskmemload22:54:290
191989942058,350cyclictest0-21swapper20:13:190
191989941851,87cyclictest13387-21ssh21:41:110
191989941647,356cyclictest31789-21diskmemload23:38:490
191989941553,347cyclictest19563-21rm00:26:180
191989941546,88cyclictest22872-21ssh23:20:000
191989941346,353cyclictest5226-21rm23:53:080
191989941252,346cyclictest17875-21seq21:51:270
191989940755,338cyclictest31789-21diskmemload00:38:210
191989940573,175cyclictest5875-21kworker/0:221:57:260
191989939355,338cyclictest0-21swapper00:14:570
191989939354,339cyclictest0-21swapper19:33:370
191989938957,318cyclictest22963-21ssh22:04:280
191989938858,316cyclictest490-21rm21:11:240
191989938536,349cyclictest0-21swapper20:15:080
191989938433,290cyclictest2560-21seq22:31:270
191989937959,316cyclictest8824-21kworker/u2:020:31:270
191989937555,306cyclictest20824-21munin-node20:41:040
191989937332,341cyclictest0-21swapper20:01:570
191989936955,214cyclictest19863-21ssh23:11:250
1919899367107,88cyclictest11-21ksoftirqd/020:58:590
191989936435,315cyclictest4924-21runrttasks20:26:330
191989936335,314cyclictest20763-21ls20:40:040
191989936333,315cyclictest9586-21seq20:09:580
191989936033,313cyclictest31184-21uptime19:40:230
191989936032,313cyclictest2895-21cut19:50:380
191989935988,259cyclictest31663-21seq21:09:000
191989935933,311cyclictest28349-21awk21:00:170
191989935692,252cyclictest4549-21sed19:55:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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