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2024-10-08 - 07:32
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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 50 highest latencies:
System rackcslot2.osadl.org (updated Tue Oct 08, 2024 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1429127249,18sleep10-21swapper/119:05:171
1296426754,8sleep00-21swapper/019:04:500
14899993535,0cyclictest0-21swapper/122:49:421
14899993230,1cyclictest0-21swapper/100:21:111
14899993110,2cyclictest0-21swapper/121:16:221
14899993010,12cyclictest0-21swapper/123:40:511
14899992826,1cyclictest24-21ksoftirqd/122:04:451
14899992725,1cyclictest22661-21kworker/u4:023:17:151
14898992610,4cyclictest0-21swapper/000:29:190
1489899260,1cyclictest25065-21apache_processe23:49:550
14899992513,9cyclictest97850irq/107-eth1-rx23:22:021
14899992510,1cyclictest0-21swapper/122:25:251
14898992518,3cyclictest0-21swapper/021:25:170
14898992510,1cyclictest0-21swapper/023:32:500
14898992510,12cyclictest0-21swapper/022:10:000
1489899250,4cyclictest0-21swapper/022:17:140
14899992417,3cyclictest30196-21apache221:20:561
1489999240,23cyclictest0-21swapper/121:44:411
1489999240,1cyclictest0-21swapper/100:39:321
14898992424,0cyclictest0-21swapper/023:29:270
14898992410,8cyclictest0-21swapper/000:33:270
14898992410,6cyclictest0-21swapper/022:30:050
14898992410,2cyclictest0-21swapper/021:54:130
14898992410,10cyclictest0-21swapper/023:42:330
1489999232,14cyclictest0-21swapper/123:26:591
14899992310,7cyclictest0-21swapper/119:29:551
14899992310,7cyclictest0-21swapper/100:16:391
1489999230,22cyclictest0-21swapper/122:43:381
14898992318,4cyclictest12740-21ssh22:52:110
14899992214,6cyclictest97850irq/107-eth1-rx22:57:371
14899992214,5cyclictest0-21swapper/120:34:441
14899992212,7cyclictest30167-21apache220:34:561
1489999221,15cyclictest0-21swapper/122:52:111
14899992210,6cyclictest0-21swapper/121:25:101
14899992210,5cyclictest0-21swapper/122:34:571
14899992210,4cyclictest0-21swapper/100:09:591
1489899225,10cyclictest0-21swapper/021:19:580
14898992216,5cyclictest636-21nscd22:39:570
14898992216,2cyclictest81ktimersoftd/019:44:390
14898992212,5cyclictest4538-21tr00:04:570
14898992210,6cyclictest0-21swapper/021:44:570
14898992210,5cyclictest0-21swapper/022:20:050
1489899220,1cyclictest0-21swapper/023:35:060
3231422110,0sleep00-21swapper/023:17:320
2394222110,0sleep00-21swapper/023:06:230
1489999212,8cyclictest0-21swapper/119:20:001
14899992116,4cyclictest817-21apache221:13:451
14899992114,3cyclictest0-21swapper/120:44:171
14899992113,3cyclictest9907-21kworker/u4:121:46:181
14899992112,6cyclictest0-21swapper/123:56:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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