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2026-05-03 - 21:39
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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 Sun May 03, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9409212665,21sleep30-21swapper/307:05:323
9409212665,21sleep30-21swapper/307:05:323
9464212059,56sleep20-21swapper/207:06:152
9464212059,56sleep20-21swapper/207:06:152
9529211855,57sleep00-21swapper/007:07:020
9529211855,57sleep00-21swapper/007:07:010
785328052,21sleep10-21swapper/107:05:021
785328052,21sleep10-21swapper/107:05:021
987099483,29cyclictest30001-21stress10:59:450
987099483,29cyclictest29999-21stress09:57:070
9870994710,21cyclictest0-21swapper/009:25:140
9870994710,21cyclictest0-21swapper/009:25:140
987099464,32cyclictest29999-21stress10:43:460
987099464,32cyclictest29999-21stress10:43:460
987099463,34cyclictest18772-21sed07:25:240
987099463,33cyclictest29999-21stress10:35:340
987099455,32cyclictest0-21swapper/010:25:330
987099453,28cyclictest29998-21stress11:55:200
987099453,26cyclictest1-21init10:02:250
987099453,26cyclictest1-21init10:02:250
9870994521,21cyclictest0-21swapper/011:10:340
9870994521,21cyclictest0-21swapper/011:10:340
987099446,23cyclictest0-21swapper/009:40:230
987099445,27cyclictest0-21swapper/008:55:150
987099443,33cyclictest11549-21if_eth308:25:180
987099443,28cyclictest13049-21cut08:30:110
987099442,27cyclictest29999-21stress09:45:160
9870994421,20cyclictest0-21swapper/010:46:310
987099435,26cyclictest0-21swapper/008:40:130
987099435,25cyclictest0-21swapper/007:10:150
987099433,31cyclictest28092-21cut09:05:130
987099433,27cyclictest24229-21sort07:40:150
987099433,26cyclictest13194-21wc07:15:140
9870994322,19cyclictest0-21swapper/011:40:180
9870994321,20cyclictest0-21swapper/011:50:130
9870994321,20cyclictest0-21swapper/011:50:130
9870994321,19cyclictest0-21swapper/011:49:590
987099423,27cyclictest10205-21sshd08:20:250
987099423,26cyclictest6620-21cut08:15:110
987099423,26cyclictest27868-21cat11:35:010
987099423,26cyclictest25939-21aten2_r7power_c09:00:110
987099423,26cyclictest25939-21aten2_r7power_c09:00:100
987099423,26cyclictest21691-21cut08:50:120
9870994221,19cyclictest0-21swapper/012:15:320
9870994220,19cyclictest0-21swapper/010:50:160
9870994219,20cyclictest0-21swapper/011:15:170
987099414,21cyclictest30001-21stress09:35:330
987099413,35cyclictest29999-21stress11:37:540
987099413,28cyclictest3439-21awk08:05:230
987099413,25cyclictest29999-21stress09:50:170
987099413,25cyclictest24373-21if_err_eth310:10:190
987099413,25cyclictest24373-21if_err_eth310:10:190
987099413,25cyclictest17007-21sshd08:39:400
987099413,25cyclictest14450irq/38-xhci_hcd08:00:220
987099412,30cyclictest29999-21stress10:30:140
9870994121,18cyclictest0-21swapper/012:35:540
9870994121,18cyclictest0-21swapper/009:20:150
9870994119,19cyclictest0-21swapper/010:15:160
9872994015,22cyclictest0-21swapper/211:52:222
9872994015,22cyclictest0-21swapper/211:52:222
987099403,25cyclictest30310-21cut07:55:110
987099403,24cyclictest30000-21stress11:25:000
9870994019,19cyclictest0-21swapper/011:00:120
9870994018,20cyclictest0-21swapper/011:25:210
9870994018,20cyclictest0-21swapper/011:25:210
9870994018,19cyclictest0-21swapper/012:20:320
9870994018,19cyclictest0-21swapper/012:20:320
9870994017,20cyclictest0-21swapper/012:05:150
9870994017,20cyclictest0-21swapper/012:05:140
9870994017,20cyclictest0-21swapper/010:05:140
9873993915,22cyclictest0-21swapper/312:11:303
987099395,23cyclictest0-21swapper/007:50:120
987099392,24cyclictest30001-21stress12:05:020
9870993913,24cyclictest0-21swapper/009:30:170
297612399,10sleep10-21swapper/109:08:051
9873993815,20cyclictest0-21swapper/311:35:203
9873993810,26cyclictest0-21swapper/311:33:483
987099385,22cyclictest0-21swapper/008:10:230
987099385,22cyclictest0-21swapper/007:33:090
987099385,22cyclictest0-21swapper/007:20:200
987099384,28cyclictest0-21swapper/008:49:280
987099383,22cyclictest22037-21diskstats07:35:130
9870993821,15cyclictest0-21swapper/011:05:350
9870993817,18cyclictest0-21swapper/009:15:320
9870993816,20cyclictest0-21swapper/012:30:260
254512389,10sleep10-21swapper/107:42:271
987099373,20cyclictest30001-21stress12:15:000
9870993718,16cyclictest0-21swapper/010:20:300
194512374,13sleep30-21swapper/307:30:033
125772377,11sleep10-21swapper/108:28:191
987299365,11cyclictest0-21swapper/211:13:242
987299365,11cyclictest0-21swapper/211:13:242
987099362,31cyclictest30001-21stress12:25:170
9870993614,16cyclictest0-21swapper/007:47:310
83932365,14sleep30-21swapper/308:19:433
297262364,17sleep10-21swapper/107:52:301
275502365,10sleep10-21swapper/109:02:031
275502365,10sleep10-21swapper/109:02:031
234452365,10sleep10-21swapper/107:39:231
211422366,12sleep30-21swapper/311:18:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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