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2026-08-07 - 11:06
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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 Fri Aug 07, 2026 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20895212055,58sleep30-21swapper/319:05:013
23009211858,20sleep20-21swapper/219:09:102
22812211653,24sleep00-21swapper/019:06:510
2253521160,1sleep012333-21stress23:59:480
23061211352,56sleep10-21swapper/119:09:491
23190994921,25cyclictest0-21swapper/200:01:282
23190994920,27cyclictest0-21swapper/222:15:302
23190994918,28cyclictest0-21swapper/221:53:482
23190994821,25cyclictest0-21swapper/200:27:262
23190994519,24cyclictest0-21swapper/221:39:492
23190994519,24cyclictest0-21swapper/221:39:482
23190994519,24cyclictest0-21swapper/200:30:082
2319099442,26cyclictest12333-21stress21:30:322
23190994416,25cyclictest0-21swapper/221:55:252
23190994416,25cyclictest0-21swapper/221:40:122
2319099435,35cyclictest12335-21stress00:10:542
2319099433,24cyclictest12335-21stress23:18:442
2319099426,33cyclictest0-21swapper/222:40:012
2319099423,36cyclictest12335-21stress23:40:352
2319099422,29cyclictest12334-21stress00:19:252
23190994221,19cyclictest0-21swapper/222:05:272
23190994218,21cyclictest0-21swapper/223:30:252
24842410,1sleep012335-21stress23:12:420
2319099413,35cyclictest12335-21stress22:34:382
25952400,1sleep212333-21stress23:14:092
2319099403,35cyclictest12333-21stress22:45:202
2319099402,35cyclictest12335-21stress22:00:352
23190994021,17cyclictest0-21swapper/222:54:352
23190994021,17cyclictest0-21swapper/222:28:222
23190994019,19cyclictest0-21swapper/222:10:182
23190994017,20cyclictest0-21swapper/223:50:262
23181994014,23cyclictest0-21swapper/122:20:531
23195993916,20cyclictest0-21swapper/323:49:213
2319099396,29cyclictest12333-21stress23:01:422
23190993920,17cyclictest0-21swapper/221:15:542
23190993918,18cyclictest0-21swapper/223:28:442
23177993917,19cyclictest0-21swapper/023:31:030
23177993910,26cyclictest0-21swapper/022:21:580
10772390,1sleep112333-21stress00:23:451
2319099383,33cyclictest12333-21stress22:41:292
2319099383,33cyclictest12333-21stress22:41:292
2319099383,32cyclictest6790-21awk23:20:372
2319099383,32cyclictest605-21/usr/sbin/munin19:30:232
2319099383,32cyclictest17679-21sed23:45:342
2319099383,32cyclictest12333-21stress22:22:262
2319099383,23cyclictest20706-21aten2_r7power_p23:55:122
23190993819,17cyclictest0-21swapper/223:05:242
23190993819,17cyclictest0-21swapper/200:20:182
23190993818,17cyclictest0-21swapper/223:00:002
23190993817,19cyclictest0-21swapper/223:35:492
23177993813,22cyclictest0-21swapper/000:16:230
70162375,13sleep30-21swapper/319:44:083
253002375,11sleep30-21swapper/319:14:363
253002375,11sleep30-21swapper/319:14:363
23832375,14sleep10-21swapper/120:45:211
2319099373,31cyclictest29308-21date21:45:352
2319099373,31cyclictest12337-21iperf21:10:212
23190993717,18cyclictest0-21swapper/221:20:322
202732375,15sleep00-21swapper/020:14:560
133542375,13sleep30-21swapper/319:56:193
325832365,13sleep00-21swapper/019:27:320
245332365,13sleep30-21swapper/320:23:013
2319099366,28cyclictest0-21swapper/200:05:252
2319099365,28cyclictest12337-21iperf21:10:012
2319099363,31cyclictest7305-21cat00:35:352
2319099363,30cyclictest4184-21grep20:50:132
2319099363,30cyclictest2881-21/usr/sbin/munin19:35:232
279552355,13sleep00-21swapper/019:15:500
279552355,13sleep00-21swapper/019:15:500
2319599359,23cyclictest0-21swapper/323:56:083
2319599358,24cyclictest0-21swapper/323:40:283
2319099356,27cyclictest0-21swapper/221:25:292
2319099356,26cyclictest0-21swapper/220:35:222
2319099355,28cyclictest0-21swapper/220:30:142
2319099355,28cyclictest0-21swapper/220:25:112
2319099355,19cyclictest0-21swapper/220:10:172
2319099353,29cyclictest9569-21/usr/sbin/munin19:50:222
2319099353,29cyclictest8205-21memory19:45:162
2319099353,29cyclictest8146-21/usr/sbin/munin21:00:262
2319099353,29cyclictest31620-21/usr/sbin/munin20:40:182
2319099353,29cyclictest22774-21/usr/sbin/munin20:20:202
2319099353,29cyclictest20573-21/usr/sbin/munin20:15:212
2319099353,29cyclictest11741-21/usr/sbin/munin19:55:202
2319099352,30cyclictest16163-21/usr/sbin/munin20:05:172
23181993516,17cyclictest0-21swapper/121:18:291
23181993514,18cyclictest0-21swapper/122:15:261
23181993511,21cyclictest0-21swapper/123:02:181
23177993514,18cyclictest0-21swapper/021:31:520
23177993513,19cyclictest0-21swapper/022:45:300
23177993512,20cyclictest0-21swapper/000:26:000
23177993511,18cyclictest0-21swapper/020:45:230
23177993511,18cyclictest0-21swapper/019:55:000
111432355,14sleep10-21swapper/119:51:031
99972344,11sleep30-21swapper/321:04:033
97382345,11sleep10-21swapper/121:00:531
67562345,14sleep10-21swapper/119:40:531
310402345,13sleep00-21swapper/020:36:220
30502344,14sleep30-21swapper/320:45:393
23195993416,15cyclictest0-21swapper/321:24:363
2319099343,29cyclictest1429-21/usr/sbin/munin20:45:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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