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2025-11-24 - 09:17
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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 Nov 24, 2025 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10187211553,23sleep10-21swapper/119:05:561
8577210550,49sleep30-21swapper/319:05:043
1033929451,38sleep00-21swapper/019:07:420
1044629365,23sleep20-21swapper/219:09:052
262472430,1sleep231783-21stress00:36:222
142302412,23sleep131783-21stress22:55:301
142302412,23sleep131783-21stress22:55:301
10622994120,18cyclictest0-21swapper/221:53:592
60252405,13sleep30-21swapper/320:10:183
1062099408,29cyclictest0-21swapper/000:30:090
1062099406,31cyclictest0-21swapper/022:02:360
10620994012,20cyclictest0-21swapper/022:37:490
1062099397,29cyclictest0-21swapper/022:30:210
227982385,13sleep30-21swapper/320:47:543
179542385,13sleep30-21swapper/319:24:503
10622993822,13cyclictest0-21swapper/223:40:412
10622993822,13cyclictest0-21swapper/223:40:412
1062099389,26cyclictest0-21swapper/000:20:340
10620993814,21cyclictest0-21swapper/022:05:310
10620993814,16cyclictest0-21swapper/023:45:520
10620993814,16cyclictest0-21swapper/023:45:520
93722375,13sleep30-21swapper/320:16:143
55602374,13sleep00-21swapper/020:10:020
51922375,13sleep30-21swapper/320:08:583
270022375,13sleep10-21swapper/120:55:421
181922375,13sleep10-21swapper/120:35:581
155842375,13sleep30-21swapper/319:17:443
10623993714,20cyclictest0-21swapper/300:26:463
10623993710,24cyclictest0-21swapper/321:55:203
10622993719,16cyclictest0-21swapper/221:10:202
10620993717,12cyclictest0-21swapper/000:35:060
10620993715,20cyclictest0-21swapper/023:04:490
8592365,12sleep30-21swapper/319:59:543
6712365,13sleep10-21swapper/119:57:361
56922360,1sleep231783-21stress21:22:512
249812365,13sleep10-21swapper/120:53:051
160212365,13sleep30-21swapper/320:31:193
123962365,12sleep10-21swapper/119:10:321
1062299365,22cyclictest0-21swapper/221:00:222
10622993621,13cyclictest0-21swapper/222:28:382
10622993620,14cyclictest0-21swapper/223:05:372
10621993615,18cyclictest0-21swapper/123:32:501
10621993615,18cyclictest0-21swapper/123:32:491
1062099369,24cyclictest0-21swapper/021:35:200
10620993617,12cyclictest0-21swapper/000:11:520
10620993615,19cyclictest0-21swapper/022:10:220
10620993614,20cyclictest0-21swapper/022:50:310
10620993613,16cyclictest0-21swapper/021:42:210
310942355,13sleep10-21swapper/119:54:241
310942355,13sleep10-21swapper/119:54:231
247802355,11sleep30-21swapper/320:50:473
222572355,13sleep10-21swapper/119:32:591
204542355,12sleep30-21swapper/319:30:083
201472355,12sleep10-21swapper/119:29:411
10623993513,19cyclictest0-21swapper/300:38:083
1062299356,21cyclictest0-21swapper/220:00:242
10622993520,13cyclictest0-21swapper/222:08:572
10622993517,16cyclictest0-21swapper/221:25:312
10622993517,15cyclictest0-21swapper/222:35:342
10621993514,18cyclictest0-21swapper/123:17:261
1062099358,24cyclictest0-21swapper/023:40:280
1062099358,24cyclictest0-21swapper/023:40:280
10620993516,17cyclictest0-21swapper/021:15:320
10620993513,19cyclictest0-21swapper/023:35:180
10620993513,19cyclictest0-21swapper/023:35:180
10620993510,22cyclictest0-21swapper/022:40:030
71952345,12sleep10-21swapper/120:11:241
6602345,10sleep00-21swapper/019:57:280
286352345,10sleep30-21swapper/319:45:403
226562345,12sleep10-21swapper/120:46:081
210072345,10sleep00-21swapper/020:45:100
161192345,13sleep10-21swapper/120:32:281
1062299348,24cyclictest0-21swapper/220:11:272
1062299348,24cyclictest0-21swapper/219:59:582
1062299345,20cyclictest0-21swapper/220:45:132
10622993419,12cyclictest0-21swapper/222:20:172
10622993419,12cyclictest0-21swapper/222:20:172
10622993418,14cyclictest0-21swapper/223:45:232
10622993418,14cyclictest0-21swapper/223:45:222
10622993418,14cyclictest0-21swapper/223:15:262
10622993418,14cyclictest0-21swapper/222:50:202
10622993417,15cyclictest0-21swapper/222:34:142
10622993414,17cyclictest0-21swapper/221:35:352
1062199349,22cyclictest0-21swapper/123:02:201
10621993414,17cyclictest0-21swapper/100:19:021
10621993412,19cyclictest0-21swapper/122:19:221
1062099348,23cyclictest0-21swapper/022:45:250
10620993417,15cyclictest0-21swapper/023:55:190
10620993415,12cyclictest0-21swapper/021:30:100
315652335,10sleep30-21swapper/321:08:153
294222335,12sleep10-21swapper/121:03:331
293222335,10sleep00-21swapper/021:02:190
220662335,10sleep00-21swapper/019:30:480
177322335,10sleep10-21swapper/119:21:591
126892335,10sleep20-21swapper/219:14:032
1062399339,21cyclictest0-21swapper/321:22:253
10623993314,16cyclictest0-21swapper/322:12:593
10623993311,19cyclictest0-21swapper/321:15:173
10623993310,20cyclictest0-21swapper/323:50:123
10623993310,20cyclictest0-21swapper/323:21:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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