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2026-04-17 - 15:45
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot5.osadl.org (updated Fri Apr 17, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149977995750,23cyclictest0-21swapper/1022:53:042
1499949952722,504cyclictest0-21swapper/1422:48:046
14995999523522,1cyclictest178640-21kworker/6:0+i915-unordered19:52:0512
1499599951212,499cyclictest0-21swapper/623:56:0412
1499949949313,58cyclictest0-21swapper/1422:09:266
1499779947426,28cyclictest0-21swapper/1021:09:492
1499879947322,30cyclictest0-21swapper/1219:45:274
1499989947120,30cyclictest294961-21switchtime22:04:287
1499919947023,29cyclictest0-21swapper/1321:41:275
1499879946721,30cyclictest0-21swapper/1220:08:264
1499919946618,28cyclictest0-21swapper/1320:10:485
1499919946618,28cyclictest0-21swapper/1320:10:485
1499479946627,30cyclictest52-21ksoftirqd/321:27:049
1499919946315,30cyclictest0-21swapper/1320:03:275
149951994590,458cyclictest0-21swapper/419:57:2810
1499369945813,29cyclictest0-21swapper/021:19:280
14999899455446,6cyclictest366830-21kworker/u64:7+events_unbound00:12:277
149987994557,29cyclictest0-21swapper/1221:07:504
1499879945126,30cyclictest0-21swapper/1200:18:484
1499779945126,29cyclictest0-21swapper/1021:06:272
14993699450447,2cyclictest366828-21kworker/u64:3+events_unbound00:00:260
1499919944922,29cyclictest0-21swapper/1300:03:265
1499879944921,30cyclictest0-21swapper/1220:37:264
1499949944721,30cyclictest0-21swapper/1419:22:056
14993699447444,2cyclictest334755-21kworker/u64:10+events_unbound23:00:490
14993699447444,2cyclictest334755-21kworker/u64:10+events_unbound23:00:490
1499879944619,30cyclictest0-21swapper/1222:25:504
149959994453,30cyclictest0-21swapper/620:37:0512
1499369944517,424cyclictest0-21swapper/022:57:040
1499919944418,29cyclictest0-21swapper/1319:14:485
1499779944424,417cyclictest0-21swapper/1020:43:492
14995599444441,2cyclictest327718-21kworker/u64:1+events_unbound23:06:0411
14995599444441,2cyclictest327718-21kworker/u64:1+events_unbound23:06:0411
1499369944425,418cyclictest0-21swapper/022:15:470
1499989944323,419cyclictest0-21swapper/1520:58:487
1499919944215,30cyclictest0-21swapper/1322:40:495
14995999442442,0cyclictest307647-21kworker/6:1+i915-unordered22:48:0412
14995199442442,0cyclictest0-21swapper/422:55:0410
1499989944122,418cyclictest0-21swapper/1520:51:507
1499949944121,419cyclictest0-21swapper/1423:00:276
1499949944121,419cyclictest0-21swapper/1423:00:276
1499989944022,418cyclictest0-21swapper/1522:53:507
1499989944017,29cyclictest0-21swapper/1522:02:047
1499949944020,419cyclictest0-21swapper/1419:32:266
1499479944016,29cyclictest52-21ksoftirqd/300:22:049
1499989943913,30cyclictest0-21swapper/1521:56:277
1499949943919,419cyclictest0-21swapper/1423:43:256
1499949943919,419cyclictest0-21swapper/1419:52:276
1499949943919,418cyclictest0-21swapper/1421:39:276
1499949943917,419cyclictest0-21swapper/1420:43:276
1499879943917,29cyclictest0-21swapper/1223:49:274
1499879943914,30cyclictest0-21swapper/1223:44:274
1499949943818,419cyclictest0-21swapper/1420:52:266
1499949943817,420cyclictest0-21swapper/1421:00:496
1499879943813,29cyclictest0-21swapper/1222:44:504
1499479943819,416cyclictest0-21swapper/319:58:059
1499479943817,418cyclictest0-21swapper/321:29:269
1499949943716,420cyclictest0-21swapper/1400:22:496
1499879943718,29cyclictest0-21swapper/1223:39:004
1499829943725,411cyclictest0-21swapper/1121:31:043
1499479943719,417cyclictest0-21swapper/321:14:479
1499479943717,419cyclictest0-21swapper/320:26:269
1499949943615,420cyclictest0-21swapper/1422:58:466
1499829943624,411cyclictest0-21swapper/1119:38:053
1499479943617,418cyclictest0-21swapper/319:49:489
14994099436435,1cyclictest352010-21kworker/1:0+i915-unordered23:30:041
1499989943518,0cyclictest0-21swapper/1500:34:267
1499949943514,420cyclictest0-21swapper/1419:35:266
1499949943512,422cyclictest0-21swapper/1420:33:276
1499879943521,413cyclictest0-21swapper/1220:10:054
1499879943521,413cyclictest0-21swapper/1220:10:054
1499829943523,411cyclictest0-21swapper/1120:05:053
1499519943525,410cyclictest0-21swapper/421:16:0410
1499479943515,419cyclictest0-21swapper/321:03:479
1499949943413,420cyclictest0-21swapper/1420:46:276
1499949943412,421cyclictest0-21swapper/1421:35:486
1499949943412,421cyclictest0-21swapper/1421:08:476
1499669943414,419cyclictest0-21swapper/821:09:2814
1499479943416,417cyclictest0-21swapper/320:18:269
1499479943416,417cyclictest0-21swapper/320:18:269
1499919943315,416cyclictest0-21swapper/1320:47:265
1499479943314,418cyclictest0-21swapper/321:11:509
1499989943110,420cyclictest0-21swapper/1520:16:267
1499989943110,420cyclictest0-21swapper/1520:16:267
1499829943117,413cyclictest0-21swapper/1120:17:053
1499829943117,413cyclictest0-21swapper/1120:17:053
1499519943117,413cyclictest0-21swapper/422:37:0410
1499519943116,414cyclictest0-21swapper/420:20:0510
149947994316,30cyclictest181861-21tr19:44:279
1499949943011,417cyclictest0-21swapper/1422:20:496
149966994297,30cyclictest0-21swapper/823:05:4914
149966994297,30cyclictest0-21swapper/823:05:4914
1499519942916,412cyclictest0-21swapper/420:12:0510
1499519942916,412cyclictest0-21swapper/420:12:0510
149994994288,417cyclictest0-21swapper/1420:22:496
14998299428425,2cyclictest133259-21kworker/u64:7+events_unbound19:57:283
1499599942812,415cyclictest0-21swapper/621:53:0412
1499519942814,413cyclictest0-21swapper/423:51:0410
1499519942811,416cyclictest0-21swapper/420:27:0510
149998994279,417cyclictest0-21swapper/1521:06:497
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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