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2026-04-22 - 23:03
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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 rack0slot2.osadl.org (updated Wed Apr 22, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137060526149,8sleep50-21swapper/507:09:175
20690962560,1sleep60-21swapper/612:19:296
137035724535,7sleep40-21swapper/407:05:474
1370921994337,5cyclictest635-21systemd-journal07:14:307
13704262393,31sleep70-21swapper/707:06:467
1370921993733,3cyclictest1921810-21ssh11:18:047
1370921993733,3cyclictest1921810-21ssh11:18:047
1370921993634,1cyclictest0-21swapper/710:29:167
1370921993534,0cyclictest0-21swapper/711:03:397
1370921993533,1cyclictest0-21swapper/709:46:157
1370921993432,1cyclictest1762406-21ssh10:12:207
1370921993432,1cyclictest1750399-21ssh10:07:437
1370921993332,0cyclictest0-21swapper/710:31:087
1370921993332,0cyclictest0-21swapper/709:40:397
1370921993331,1cyclictest1909034-21ssh11:12:047
1370921993330,2cyclictest2018934-21ssh11:57:117
1370921993231,0cyclictest0-21swapper/710:51:477
1370921993231,0cyclictest0-21swapper/709:31:597
1370921993226,5cyclictest635-21systemd-journal10:44:297
1370921993130,0cyclictest0-21swapper/711:46:447
1370921993129,1cyclictest1604698-21diskmemload11:25:437
1370921993129,1cyclictest0-21swapper/710:57:407
137092199310,29cyclictest826-21avahi-daemon09:13:137
1370921993029,0cyclictest0-21swapper/710:48:557
1370921993028,1cyclictest0-21swapper/711:38:437
1370921992928,0cyclictest0-21swapper/712:20:037
1370921992928,0cyclictest0-21swapper/711:54:277
1370921992928,0cyclictest0-21swapper/711:09:047
1370921992928,0cyclictest0-21swapper/709:53:487
1370921992927,1cyclictest0-21swapper/709:58:337
1370921992927,1cyclictest0-21swapper/709:58:337
1370921992827,0cyclictest0-21swapper/709:38:377
1370921992726,0cyclictest0-21swapper/712:07:397
1370921992726,0cyclictest0-21swapper/712:02:517
1370921992726,0cyclictest0-21swapper/709:16:447
1370921992725,1cyclictest1956809-21ssh11:30:157
1370921992721,5cyclictest1489705-21latency_hist08:09:307
1370921992625,0cyclictest0-21swapper/712:38:487
1370921992625,0cyclictest0-21swapper/712:11:447
1370921992625,0cyclictest0-21swapper/710:19:207
1370921992624,1cyclictest2103663-21sh12:30:567
1370921992624,1cyclictest0-21swapper/711:42:287
1370921992624,1cyclictest0-21swapper/710:04:047
1370921992623,2cyclictest1641196-21ssh09:24:087
137092199260,25cyclictest0-21swapper/707:49:517
1370906992622,3cyclictest1584552-21kworker/u16:2+flush-8:009:14:504
1370921992524,0cyclictest0-21swapper/708:45:407
137092199250,23cyclictest1932458-21ssh11:20:237
137092199250,23cyclictest1932458-21ssh11:20:237
137052222514,8sleep60-21swapper/607:08:066
1370921992421,2cyclictest1651844-21ssh09:26:237
1370906992422,2cyclictest1849383-21kworker/u16:5+flush-8:011:06:284
1370921992322,0cyclictest0-21swapper/712:25:437
1370921992322,0cyclictest0-21swapper/712:18:527
1370921992221,0cyclictest0-21swapper/710:36:567
1370921992221,0cyclictest0-21swapper/710:36:567
1370921992220,1cyclictest0-21swapper/707:29:547
1370906992118,2cyclictest1402348-21kworker/u16:4+flush-8:007:34:454
1370921992019,0cyclictest0-21swapper/710:24:217
1370921991918,0cyclictest0-21swapper/708:15:487
1370921991918,0cyclictest0-21swapper/708:14:047
1370921991913,5cyclictest1432023-21latency_hist07:39:297
20321452180,1chrt0-21swapper/412:03:564
1370921991814,3cyclictest1234-21snmpd07:15:027
137091599180,4cyclictest0-21swapper/612:00:456
1370906991814,3cyclictest1509248-21munin-node08:19:424
1370921991716,0cyclictest0-21swapper/707:54:507
1370906991714,2cyclictest1479783-21kworker/u16:5+flush-8:008:14:404
137090699170,1cyclictest0-21swapper/410:59:524
137090699170,16cyclictest0-21swapper/409:49:524
1370921991615,0cyclictest0-21swapper/708:24:557
1370921991615,0cyclictest0-21swapper/707:24:397
137092199160,15cyclictest1234-21snmpd08:57:597
137092199160,15cyclictest0-21swapper/708:00:377
137092199160,14cyclictest1556432-21sshd-session08:40:477
1370914991613,2cyclictest1749059-21kworker/u16:3+flush-8:010:15:555
1370906991614,2cyclictest1628039-21kworker/u16:0+flush-8:009:40:124
1370906991613,2cyclictest1393325-21kworker/u16:0+events_unbound08:00:334
1370906991613,2cyclictest1376130-21kworker/u16:3+events_unbound07:24:454
137091599150,14cyclictest0-21swapper/609:49:126
137090699150,1cyclictest0-21swapper/408:09:454
137090699150,14cyclictest0-21swapper/411:54:564
137092199148,5cyclictest1537573-21latency_hist08:34:297
137092199140,12cyclictest1234-21snmpd08:59:537
137091599148,5cyclictest0-21swapper/610:29:446
1370915991413,1cyclictest0-21swapper/609:43:256
1370915991412,1cyclictest0-21swapper/610:24:536
137091599140,1cyclictest0-21swapper/611:26:046
137091599140,1cyclictest0-21swapper/610:35:276
137091599140,1cyclictest0-21swapper/610:35:276
137091599140,14cyclictest0-21swapper/608:49:496
1370906991413,1cyclictest0-21swapper/409:23:324
1370906991413,1cyclictest0-21swapper/409:11:234
137090699140,1cyclictest0-21swapper/411:39:534
137090699140,14cyclictest0-21swapper/411:25:334
137090699140,13cyclictest0-21swapper/412:04:494
137092199139,3cyclictest1234-21snmpd08:34:407
137092199136,6cyclictest6895-21gmain08:23:397
137092199136,6cyclictest6514-21gmain09:04:517
1370921991310,2cyclictest0-21swapper/708:49:557
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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