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2026-09-06 - 22:33
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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 rack3slot3.osadl.org (updated Sun Sep 06, 2026 12:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23676210792sleep00-21swapper/007:07:010
122501050irq/42-ahci0-21swapper/307:08:525
3054950990irq/53-eth0-rx-0-21swapper/207:05:154
3054950990irq/53-eth0-rx-0-21swapper/107:09:491
12250980irq/42-ahci0-21swapper/707:10:009
3054950960irq/53-eth0-rx-0-21swapper/407:05:046
12250930irq/42-ahci0-21swapper/807:08:3510
3054950920irq/53-eth0-rx-0-21swapper/907:05:3711
2077428879sleep60-21swapper/607:05:078
3054950840irq/53-eth0-rx-0-21swapper/1107:07:023
3054950760irq/53-eth0-rx-0-21swapper/1007:08:052
3054950670irq/53-eth0-rx-0-21swapper/507:06:507
24128993617cyclictest0-21swapper/1107:23:243
2412899330cyclictest0-21swapper/1110:26:083
2410399320cyclictest0-21swapper/010:25:200
2412199226cyclictest0-21swapper/509:25:317
2410399220cyclictest0-21swapper/010:17:160
24128992019cyclictest22644-21kworker/11:210:17:563
24127992018cyclictest0-21swapper/1010:57:502
24103992019cyclictest0-21swapper/009:21:590
2412699192cyclictest0-21swapper/911:03:5911
2412699192cyclictest0-21swapper/910:46:5311
2412699192cyclictest0-21swapper/910:46:5211
24128991817cyclictest7131-21chrt09:27:163
24127991816cyclictest159792sleep1009:10:022
24127991816cyclictest0-21swapper/1007:12:362
2412699181cyclictest761ksoftirqd/912:10:1311
2412699181cyclictest761ksoftirqd/909:05:0111
2412699181cyclictest761ksoftirqd/907:15:0011
2412699181cyclictest20827-21latency_hist12:40:0011
2412699181cyclictest16227-21diskstats07:40:1311
2412699181cyclictest14619-21cat08:20:2611
2412699181cyclictest14619-21cat08:20:2511
2412699181cyclictest0-21swapper/911:53:3911
2412699181cyclictest0-21swapper/911:45:4811
2412699181cyclictest0-21swapper/911:43:4011
2412699181cyclictest0-21swapper/911:28:3411
2412699181cyclictest0-21swapper/910:40:3911
2412699181cyclictest0-21swapper/910:25:4511
2412699181cyclictest0-21swapper/910:19:1411
2412699181cyclictest0-21swapper/910:10:2811
2412699181cyclictest0-21swapper/910:09:4811
2412699181cyclictest0-21swapper/909:51:0911
2412699181cyclictest0-21swapper/909:17:1611
2412699181cyclictest0-21swapper/909:13:3311
2412699181cyclictest0-21swapper/908:35:2911
2412599184cyclictest0-21swapper/810:39:1410
2412499185cyclictest0-21swapper/710:45:019
2412499185cyclictest0-21swapper/710:45:009
24105991816cyclictest9319-21snmp_rack3slot909:00:124
24105991816cyclictest2775-21snmp_rack3slot911:06:244
24105991816cyclictest22149-21munin-run07:50:004
2410399180cyclictest0-21swapper/007:17:490
2410399180cyclictest0-21swapper/007:11:450
24128991716cyclictest470-21chrt09:21:513
24128991716cyclictest308412chrt10:11:213
24128991716cyclictest12-21rcu_preempt10:30:123
24128991715cyclictest3054950irq/53-eth0-rx-10:22:123
24127991716cyclictest32057-1kworker/10:2H07:29:502
24127991716cyclictest0-21swapper/1012:25:402
24127991716cyclictest0-21swapper/1012:01:462
24127991716cyclictest0-21swapper/1011:59:042
24127991716cyclictest0-21swapper/1011:50:072
24127991716cyclictest0-21swapper/1011:41:132
24127991716cyclictest0-21swapper/1011:21:442
24127991716cyclictest0-21swapper/1011:21:442
24127991716cyclictest0-21swapper/1010:02:172
24127991716cyclictest0-21swapper/1009:40:172
24127991716cyclictest0-21swapper/1009:38:212
24127991715cyclictest0-21swapper/1010:10:322
2412799171cyclictest3055050irq/54-eth0-tx-12:16:022
2412799171cyclictest3055050irq/54-eth0-tx-10:17:132
2412799171cyclictest3054950irq/53-eth0-rx-10:46:002
2412799171cyclictest3054950irq/53-eth0-rx-10:46:002
2412699170cyclictest761ksoftirqd/908:55:1411
2412699170cyclictest761ksoftirqd/907:15:1211
2412699170cyclictest0-21swapper/912:05:1111
2412699170cyclictest0-21swapper/911:22:0411
2412699170cyclictest0-21swapper/911:22:0311
2412699170cyclictest0-21swapper/910:57:4311
2412699170cyclictest0-21swapper/910:20:0911
2412699170cyclictest0-21swapper/909:43:5611
2412699170cyclictest0-21swapper/908:27:3111
2412599175cyclictest0-21swapper/809:30:0010
24121991716cyclictest9186-21snmp_rack3slot911:11:377
2412199171cyclictest0-21swapper/512:35:007
2412199171cyclictest0-21swapper/511:17:047
2412199171cyclictest0-21swapper/511:17:037
2412199171cyclictest0-21swapper/510:57:377
2412199171cyclictest0-21swapper/510:15:207
2412199171cyclictest0-21swapper/509:43:317
24105991715cyclictest9128-21snmp_rack3slot907:30:124
24105991715cyclictest21808-21snmp_easybox.os08:30:254
24105991715cyclictest21808-21snmp_easybox.os08:30:244
24105991715cyclictest18471-21munin-run10:55:014
24105991715cyclictest17692-21snmp_rack3slot909:10:154
2410599171cyclictest0-21swapper/211:35:184
24104991715cyclictest9368-21kworker/1:009:41:541
2410499171cyclictest0-21swapper/112:25:161
2410499171cyclictest0-21swapper/112:15:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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