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2025-04-04 - 08:45
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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 rackdslot2.osadl.org (updated Fri Apr 04, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279292208174,23sleep00-21swapper/019:06:120
280832205171,22sleep30-21swapper/319:07:433
282642203170,22sleep10-21swapper/119:09:341
280822203170,22sleep20-21swapper/219:07:422
1589021690,6sleep12859299cyclictest19:15:481
137291780,2ptp4l391rcuc/319:20:463
137291780,2ptp4l391rcuc/319:20:453
85272700,3sleep10-21swapper/119:22:021
85272700,3sleep10-21swapper/119:22:021
115912660,4sleep25343-21spawn19:16:042
2859199656,7cyclictest5784-21expr19:20:300
2859199656,7cyclictest5784-21expr19:20:300
243572630,5sleep324359-21sh19:19:473
229812630,4sleep22859399cyclictest19:21:142
229812630,4sleep22859399cyclictest19:21:142
184962630,4sleep218490-21turbostat23:40:002
2859199577,6cyclictest16010-21expr19:25:040
2859199576,7cyclictest28932-21dpkg00:05:000
2859199576,5cyclictest28773-21spawn19:16:020
137291560,1ptp4l401ktimersoftd/322:44:323
9212550,6sleep22859399cyclictest22:55:152
2859199550,10cyclictest22447-21sed20:00:000
137291550,1ptp4l401ktimersoftd/322:24:363
2859199536,6cyclictest7957-21grep00:35:120
2859199533,7cyclictest0-21swapper/019:10:250
137291530,1ptp4l401ktimersoftd/321:08:133
2859199520,9cyclictest5323-21date23:05:000
2859199520,9cyclictest22770-21latency_hist22:30:000
137291510,1ptp4l391rcuc/320:05:523
2859199501,9cyclictest2331-21cat20:25:160
2859199492,9cyclictest8469-21mailstats20:35:260
2859199492,9cyclictest5972-21sed20:30:300
2859199492,6cyclictest406-21tune2fs00:15:140
292022480,26sleep09-21ksoftirqd/021:20:180
2859199473,9cyclictest13686-21cron23:30:000
2859199466,5cyclictest16490-21latency19:45:200
2859199464,6cyclictest16727-21cstates20:55:150
2859199464,6cyclictest16727-21cstates20:55:150
2859199463,16cyclictest31136-21ls00:10:220
2859199463,16cyclictest31136-21ls00:10:220
2859199461,7cyclictest24216-21gzip22:30:200
2859199461,7cyclictest24216-21gzip22:30:190
137291460,1ptp4l401ktimersoftd/320:18:193
132691460,5getstats29003-21cat20:10:333
2859199457,6cyclictest8317-21sed23:15:010
2859199455,6cyclictest16482-21tr23:35:170
2859199450,9cyclictest31284-21taskset20:15:260
2859199442,12cyclictest434-21in:imuxsock22:05:000
28593994333,7cyclictest56350irq/144-enp4s0-19:25:162
2859299439,4cyclictest25-21ksoftirqd/120:45:001
2859199435,5cyclictest4594-21df_abs21:40:140
2859199435,5cyclictest18017-21fschecks_time22:15:170
2859199432,6cyclictest101ktimersoftd/020:50:160
28592994237,3cyclictest25-21ksoftirqd/122:30:001
28592994236,4cyclictest27115-21cron20:10:011
2859199425,6cyclictest21683-21latency_hist23:50:010
2859199425,6cyclictest18746-21irqrtprio19:50:210
2859199424,6cyclictest29858-21latency_hist22:45:010
2859199424,6cyclictest22905-21latency23:50:190
137291420,34ptp4l0-21swapper/319:10:023
137291420,0ptp4l401ktimersoftd/323:02:433
28592994112,3cyclictest25-21ksoftirqd/119:25:101
2859199415,6cyclictest9406-21cat19:30:240
137291410,0ptp4l401ktimersoftd/323:10:203
137291410,0ptp4l401ktimersoftd/321:40:203
2859399401,4cyclictest121rcu_preempt22:30:002
2859199405,5cyclictest11165-21sed21:55:270
2859199401,5cyclictest101ktimersoftd/021:05:150
28592993934,2cyclictest25-21ksoftirqd/120:29:591
2859199390,9cyclictest7927-21irqrtprio21:50:140
2859199390,7cyclictest14058-21irqstats19:40:200
137291390,1ptp4l401ktimersoftd/321:20:243
2859299385,3cyclictest25-21ksoftirqd/120:05:011
28592993834,2cyclictest25-21ksoftirqd/122:55:001
28592993834,2cyclictest25-21ksoftirqd/121:15:001
28592993833,3cyclictest25-21ksoftirqd/120:34:591
124082380,5sleep212410-21unixbench_multi19:35:302
28592993733,3cyclictest25-21ksoftirqd/100:10:001
28592993733,2cyclictest25-21ksoftirqd/121:20:011
28592993733,2cyclictest25-21ksoftirqd/100:30:011
28592993732,3cyclictest25-21ksoftirqd/123:30:001
28592993732,3cyclictest25-21ksoftirqd/122:20:011
28592993732,3cyclictest25-21ksoftirqd/120:40:001
28592993732,3cyclictest25-21ksoftirqd/100:40:001
28592993732,3cyclictest25-21ksoftirqd/100:00:211
28592993731,3cyclictest25-21ksoftirqd/121:20:121
28592993731,3cyclictest25-21ksoftirqd/121:10:011
2859199371,6cyclictest1473-21irqstats22:55:190
2859199370,7cyclictest28297-21irqstats20:10:260
28594993631,3cyclictest27369-21sh22:40:003
28594993630,4cyclictest41-21ksoftirqd/322:27:043
28594993630,4cyclictest41-21ksoftirqd/321:31:483
28594993630,4cyclictest41-21ksoftirqd/321:31:483
28594993629,5cyclictest41-21ksoftirqd/323:33:153
28592993631,3cyclictest25-21ksoftirqd/123:25:001
28592993631,3cyclictest25-21ksoftirqd/123:15:001
28592993631,3cyclictest25-21ksoftirqd/121:05:011
28592993631,3cyclictest25-21ksoftirqd/100:35:001
28592993630,3cyclictest25-21ksoftirqd/122:20:161
28592993630,3cyclictest25-21ksoftirqd/119:30:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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