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2025-12-24 - 13:22
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Wed Dec 24, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21852205170,23sleep30-21swapper/319:06:363
24142204170,23sleep20-21swapper/219:09:272
22452203170,22sleep10-21swapper/119:07:221
21872200167,22sleep00-21swapper/019:06:360
1606421730,6sleep1279699cyclictest21:50:211
934321630,2sleep0279599cyclictest19:20:240
2795997312,19cyclictest16006-21cut00:05:210
279799630,21cyclictest27625-21/usr/sbin/munin00:30:142
279799621,21cyclictest10341-21date21:40:012
279799620,28cyclictest21258-21taskset20:55:012
279599624,27cyclictest32654-21seq21:16:580
279599624,27cyclictest32654-21seq21:16:570
279799610,23cyclictest27976-21sshd21:07:412
279799610,19cyclictest17419-21latency_hist21:55:012
2797995714,17cyclictest28130-21latency_hist23:25:002
279799570,23cyclictest8613-21chrt22:41:152
279599571,23cyclictest18621-21seq20:49:260
279799561,33cyclictest18675-21latency_hist20:50:002
279599550,2cyclictest12401-21seq21:43:460
139391550,1ptp4l401ktimersoftd/322:04:163
279799540,20cyclictest11851-21sensors19:25:272
222682540,3sleep30-21swapper/323:10:253
139391540,1ptp4l401ktimersoftd/322:15:303
139391530,1ptp4l401ktimersoftd/320:05:033
323762520,1sleep10-21swapper/121:15:251
323762520,1sleep10-21swapper/121:15:251
279799520,22cyclictest2814-21/usr/sbin/munin19:10:152
279599511,3cyclictest22939-21runrttasks23:12:350
279599510,3cyclictest32666-21runrttasks23:32:480
279599510,3cyclictest2762-21runrttasks23:38:340
115042510,2sleep30-21swapper/323:55:223
2795994911,27cyclictest19656-21seq19:44:470
279599490,3cyclictest4591-21runrttasks19:10:330
279799480,27cyclictest27036-21/usr/sbin/munin20:00:242
279599480,3cyclictest27913-21seq23:22:330
279799471,18cyclictest1300-21snmpd23:50:122
279799470,27cyclictest22309-21chrt00:19:442
279799470,25cyclictest28347-21/usr/sbin/munin23:25:122
279599470,3cyclictest25540-21runrttasks21:01:560
2797994630,13cyclictest33-21ksoftirqd/223:45:002
279699462,41cyclictest8913-21cron22:45:001
279599460,2cyclictest28864-21runrttasks20:01:150
2795994412,21cyclictest1317-21runrttasks00:21:490
2795994338,3cyclictest22044-21cron19:50:010
139391430,0ptp4l401ktimersoftd/323:21:173
139391430,0ptp4l401ktimersoftd/320:25:513
139391430,0ptp4l401ktimersoftd/319:26:063
57898420,7rtkit-daemon0-21swapper/119:53:201
2798994237,3cyclictest41-21ksoftirqd/321:04:593
2798994237,2cyclictest41-21ksoftirqd/320:40:003
279599429,22cyclictest1317-21runrttasks20:17:250
139391420,0ptp4l401ktimersoftd/323:27:153
139391420,0ptp4l401ktimersoftd/320:41:173
2798994135,3cyclictest41-21ksoftirqd/322:25:003
279599417,21cyclictest6338-21seq20:21:490
279599412,3cyclictest14564-21seq21:46:130
279599411,2cyclictest0-21swapper/022:50:040
279599411,2cyclictest0-21swapper/022:38:530
279599411,2cyclictest0-21swapper/000:19:460
279599410,2cyclictest121rcu_preempt22:25:260
2798994035,3cyclictest41-21ksoftirqd/321:40:003
2798994035,3cyclictest41-21ksoftirqd/300:20:003
279899400,3cyclictest121rcu_preempt00:25:283
279599401,3cyclictest1317-21runrttasks22:56:090
279599401,3cyclictest12594-21seq23:59:280
279599400,4cyclictest31562-21seq00:36:460
279599400,3cyclictest1317-21runrttasks22:43:020
139391400,0ptp4l401ktimersoftd/319:35:363
139391400,0ptp4l401ktimersoftd/300:33:223
2798993934,3cyclictest41-21ksoftirqd/320:55:003
2798993928,9cyclictest41-21ksoftirqd/321:40:243
279899390,2cyclictest121rcu_preempt23:50:243
279799396,17cyclictest0-21swapper/219:22:072
279799390,18cyclictest1300-21snmpd00:11:362
279799390,18cyclictest1300-21snmpd00:11:362
279799390,17cyclictest1300-21snmpd20:54:372
279599391,3cyclictest1317-21runrttasks22:17:260
279599391,2cyclictest0-21swapper/019:28:470
279599391,2cyclictest0-21swapper/000:10:030
279599391,2cyclictest0-21swapper/000:10:030
279599390,3cyclictest27010-21seq00:29:040
279599390,3cyclictest17124-21runrttasks21:53:350
279599390,3cyclictest1317-21runrttasks21:29:330
2798993835,2cyclictest41-21ksoftirqd/300:40:013
2798993832,3cyclictest41-21ksoftirqd/319:14:593
279799381,22cyclictest11193-21chrt20:30:342
279799380,27cyclictest17285-21chrt19:40:002
279599380,4cyclictest11240-21seq20:31:120
279599380,3cyclictest1317-21runrttasks23:41:390
2798993733,2cyclictest41-21ksoftirqd/322:45:003
2798993733,2cyclictest41-21ksoftirqd/322:29:593
2798993732,3cyclictest41-21ksoftirqd/321:25:013
2798993732,3cyclictest41-21ksoftirqd/320:19:593
2797993731,4cyclictest33-21ksoftirqd/222:08:352
279799370,23cyclictest13420-21/usr/sbin/munin00:00:172
279799370,22cyclictest20745-21chrt23:09:442
279799370,22cyclictest19427-21chrt19:41:572
279599371,2cyclictest0-21swapper/021:57:040
279599371,2cyclictest0-21swapper/021:35:030
279599371,2cyclictest0-21swapper/000:03:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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