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2026-06-03 - 13:37
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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 rackdslot1.osadl.org (updated Wed Jun 03, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24027997415,12cyclictest3332-21chrt00:21:082
24027997315,12cyclictest26526-21chrt00:04:272
24027997216,11cyclictest10014-21chrt23:27:162
24027997115,12cyclictest14661-21taskset23:37:522
24027997115,11cyclictest12043-21chrt21:10:382
24027997115,10cyclictest21556-21taskset21:34:272
24027997114,11cyclictest5569-21taskset23:19:182
24027997016,11cyclictest5085-21taskset20:58:252
24027997015,12cyclictest14676-21chrt21:19:522
24027997015,11cyclictest9380-21chrt19:58:312
24027997015,10cyclictest7663-21chrt23:21:312
24027997015,10cyclictest18989-21taskset21:26:052
24027996915,12cyclictest5302-21chrt22:07:462
24027996915,12cyclictest26683-21taskset19:19:292
24027996915,11cyclictest1301-21snmpd00:36:172
24027996914,11cyclictest9896-21chrt22:17:482
24027996914,11cyclictest12216-21chrt23:31:022
2402799684,62cyclictest0-21swapper/221:20:292
24027996816,48cyclictest6388-21seq00:30:132
24027996816,11cyclictest17296-21seq23:44:152
24027996814,10cyclictest21921-21taskset23:54:412
24027996715,11cyclictest18673-21seq20:16:592
24027996714,51cyclictest0-21swapper/221:05:302
24027996714,11cyclictest12221-21taskset22:22:542
24027996711,14cyclictest32679-21sed19:40:002
24027996618,10cyclictest662-21taskset23:09:582
24027996616,11cyclictest31820-21seq19:33:192
24027996616,11cyclictest30706-21seq21:53:392
24027996611,12cyclictest12026-21sed20:05:012
134491660,22ptp4l19879-21/usr/sbin/munin21:30:291
2402799652,60cyclictest0-21swapper/219:45:172
24027996519,11cyclictest23351-21taskset20:27:412
24027996515,10cyclictest32618-21runrttasks20:45:432
24027996514,9cyclictest29978-21cut00:10:202
24027996513,17cyclictest24726-21sed22:50:192
24027996420,12cyclictest2806-21chrt20:53:362
24027996419,11cyclictest13847-21taskset20:06:422
24027996419,10cyclictest7045-21taskset19:53:022
24027996419,10cyclictest21320-21chrt22:41:392
24027996418,9cyclictest28300-21taskset21:47:192
24027996418,10cyclictest28934-21taskset00:08:212
24027996418,10cyclictest25952-21taskset19:13:062
24027996319,11cyclictest19210-21taskset22:39:142
24027996218,11cyclictest23985-21taskset20:30:092
24027996214,10cyclictest534-21runrttasks21:58:202
24027996212,11cyclictest6209-21latency_hist00:30:002
24027996211,10cyclictest24473-21df_abs21:40:142
24027996118,11cyclictest16627-21taskset22:30:362
24027996118,11cyclictest16627-21taskset22:30:362
24027996117,17cyclictest19563-21fschecks_time20:20:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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