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2026-05-18 - 18:46
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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 rack7slot1.osadl.org (updated Mon May 18, 2026 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5841211354,21sleep30-21swapper/307:09:463
5508211051,54sleep10-21swapper/107:05:521
3961210449,50sleep20-21swapper/207:05:122
549128557,23sleep00-21swapper/007:05:390
596599493,30cyclictest26322-21stress12:00:320
596599453,32cyclictest27947-21runrttasks07:56:020
596599443,32cyclictest23218-21cut07:45:220
596599443,31cyclictest26322-21stress09:30:540
596599443,31cyclictest26319-21stress11:50:260
596599443,26cyclictest26319-21stress09:15:290
596599442,26cyclictest26319-21stress09:55:220
5965994416,25cyclictest0-21swapper/011:25:100
596599433,27cyclictest8071-21cron07:15:000
596599433,27cyclictest24917-21hwlatdetect09:05:160
596599433,27cyclictest24917-21hwlatdetect09:05:160
596599433,26cyclictest20074-21latency_hist12:40:000
596599433,24cyclictest26319-21stress12:05:190
596599432,27cyclictest26322-21stress09:45:280
596599432,27cyclictest15758-21wget08:45:120
596599432,26cyclictest26319-21stress11:55:340
596599432,26cyclictest26319-21stress11:35:220
596599423,30cyclictest22514-21wc09:00:130
596599423,30cyclictest19215-21sed07:35:240
596599423,27cyclictest19400-21taskset08:50:360
596599423,26cyclictest13007-21runrttasks08:36:550
596599423,26cyclictest12816-21runrttasks07:20:560
596599423,25cyclictest8757-21cut07:15:020
596599423,24cyclictest26322-21stress10:45:180
596599423,24cyclictest26322-21stress09:35:250
596599423,24cyclictest17423-21runrttasks11:15:540
596599422,30cyclictest26322-21stress10:15:140
596599422,30cyclictest26322-21stress10:15:140
596599422,25cyclictest26322-21stress10:05:300
596599422,24cyclictest26319-21stress09:54:370
5965994217,23cyclictest0-21swapper/012:27:370
5967994113,25cyclictest0-21swapper/209:40:402
596599413,30cyclictest15330-21taskset08:43:510
596599413,26cyclictest4532-21runrttasks08:19:010
596599413,26cyclictest1899-21runrttasks07:40:430
596599413,24cyclictest15344-21idleruntime-cro07:30:000
596599413,23cyclictest26322-21stress11:00:340
596599413,23cyclictest26322-21stress11:00:340
596599413,23cyclictest26319-21stress11:40:110
596599412,25cyclictest26322-21stress11:05:140
596599412,24cyclictest26322-21stress10:14:360
596599412,24cyclictest26322-21stress09:11:200
596599412,24cyclictest26319-21stress11:31:540
596599412,24cyclictest26319-21stress11:31:540
5965994115,23cyclictest0-21swapper/011:20:320
596599411,25cyclictest26319-21stress09:20:130
596599403,27cyclictest1415-21netstat08:10:200
596599403,24cyclictest8981-21cron08:30:010
596599403,23cyclictest24561-21expr07:50:120
596599403,22cyclictest26322-21stress10:35:250
596599403,22cyclictest26319-21stress10:01:160
596599402,29cyclictest26322-21stress11:11:090
596599402,28cyclictest26322-21stress12:14:200
596599402,28cyclictest26322-21stress12:14:200
596599402,24cyclictest26322-21stress10:50:280
5965994016,21cyclictest0-21swapper/011:00:020
5965994016,21cyclictest0-21swapper/011:00:020
5965994014,21cyclictest0-21swapper/010:40:300
5968993916,20cyclictest0-21swapper/312:15:573
596599393,25cyclictest6187-21/usr/sbin/munin08:20:230
596599393,23cyclictest31201-21fschecks_count08:05:150
596599393,23cyclictest21170-21grep08:55:220
596599392,35cyclictest26322-21stress10:20:350
596599392,35cyclictest26319-21stress09:29:570
596599392,23cyclictest16026-21grep07:30:150
596599392,22cyclictest26322-21stress12:16:270
5965993920,17cyclictest0-21swapper/012:31:240
596799384,23cyclictest0-21swapper/211:45:182
596599383,27cyclictest29897-21sort08:00:230
596599383,27cyclictest29897-21sort08:00:230
596599383,23cyclictest9996-21kernelversion08:30:180
596599383,23cyclictest26322-21stress10:30:260
596599383,22cyclictest29798-21/usr/sbin/munin11:45:260
596599382,23cyclictest26319-21stress12:21:430
88732375,11sleep30-21swapper/308:28:473
5967993715,19cyclictest0-21swapper/209:57:002
596699376,15cyclictest0-21swapper/111:10:221
45772375,14sleep30-21swapper/308:19:373
239582375,14sleep20-21swapper/209:03:262
237932375,13sleep30-21swapper/307:47:533
214632375,14sleep20-21swapper/207:40:422
173202375,14sleep10-21swapper/108:46:331
65422365,13sleep30-21swapper/308:21:453
5967993614,19cyclictest0-21swapper/209:25:132
5967993613,20cyclictest0-21swapper/209:49:232
596599363,31cyclictest28452-21chrt10:29:520
42932365,13sleep10-21swapper/108:16:181
303552365,13sleep20-21swapper/208:04:042
303552365,13sleep20-21swapper/208:04:042
281002365,13sleep10-21swapper/107:58:011
196962365,13sleep30-21swapper/308:54:253
196022365,10sleep20-21swapper/208:53:122
134172365,13sleep20-21swapper/207:25:062
5968993516,16cyclictest0-21swapper/311:56:143
5968993513,19cyclictest0-21swapper/310:03:013
5968993512,21cyclictest0-21swapper/309:55:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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