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2026-03-11 - 16:53
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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 highest latencies:
System rack0slot2.osadl.org (updated Wed Mar 11, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18713972950,1sleep50-21swapper/511:09:215
18052382940,1sleep71805241-21cut10:39:267
1336204995247,2cyclictest1368898-21kworker/u16:2+flush-8:007:44:036
1336204994744,2cyclictest1843381-21kworker/u16:3+flush-8:012:04:306
133560624736,8sleep50-21swapper/506:59:435
133560624736,8sleep50-21swapper/506:59:435
17125982460,0sleep71712599-21rm10:02:237
133620599450,43cyclictest650-21systemd-journal08:59:027
1336204994543,2cyclictest1843380-21kworker/u16:0+flush-8:011:59:026
1336194994542,2cyclictest1843380-21kworker/u16:0+flush-8:012:29:024
1336204994442,2cyclictest1263625-21kworker/u16:1+flush-8:008:19:026
133575724434,7sleep60-21swapper/607:01:536
133575724434,7sleep60-21swapper/607:01:536
133620599410,39cyclictest650-21systemd-journal09:38:577
1336204994138,2cyclictest1326792-21kworker/u16:3+flush-8:007:19:026
1336194994137,3cyclictest1795466-21kworker/u16:2+flush-8:010:44:284
13276422403,31sleep70-21swapper/706:59:217
13276422403,31sleep70-21swapper/706:59:217
1336204993936,2cyclictest1843380-21kworker/u16:0+flush-8:012:14:376
1336204993936,2cyclictest1737606-21kworker/u16:1+flush-8:011:09:216
133620599340,32cyclictest1473622-21latency_hist08:14:027
1336204993432,2cyclictest1967016-21kworker/u16:1+flush-8:012:19:326
133568823424,7sleep40-21swapper/407:00:544
133568823424,7sleep40-21swapper/407:00:544
1336204993230,2cyclictest1737606-21kworker/u16:1+events_unbound10:14:166
1336204993229,3cyclictest1593616-21kworker/u16:3+flush-8:009:26:296
1336204993229,3cyclictest1573653-21kworker/u16:0+events_unbound09:49:286
13675062300,0chrt1367489-21needreboot07:14:277
1336204993028,2cyclictest1593616-21kworker/u16:3+events_unbound10:04:206
1336204992825,2cyclictest1520656-21kworker/u16:1+flush-8:008:54:026
18934012270,1chrt1893399-21ssh11:18:217
1336205992725,2cyclictest124-21kswapd012:23:017
1336204992725,2cyclictest1484703-21kworker/u16:3+events_unbound08:23:396
1336204992725,2cyclictest1454288-21kworker/u16:0+flush-8:008:09:336
1336204992725,2cyclictest1263625-21kworker/u16:1+flush-8:007:19:206
1336205992620,5cyclictest650-21systemd-journal07:39:037
1336204992523,2cyclictest1593616-21kworker/u16:3+events_unbound09:29:276
18022942240,1chrt0-21swapper/410:39:234
1336205992419,4cyclictest650-21systemd-journal11:28:577
1336204992422,2cyclictest1843380-21kworker/u16:0+events_unbound11:59:326
1336205992319,3cyclictest650-21systemd-journal08:33:577
133620599230,22cyclictest6471-21gnome-software09:26:157
1336204992321,2cyclictest1593616-21kworker/u16:3+flush-8:009:44:386
1336204992220,2cyclictest1843380-21kworker/u16:0+events_unbound11:19:366
1336204992220,2cyclictest1326792-21kworker/u16:3+flush-8:007:34:336
1336205992117,3cyclictest1769739-21kthreadcore10:24:257
1336204992119,2cyclictest1737606-21kworker/u16:1+flush-8:010:44:026
17380082200,1chrt1738006-21ssh10:14:097
1336205992015,4cyclictest2073727-21latency_hist12:34:027
1336204992019,1cyclictest1795466-21kworker/u16:2+flush-8:010:44:256
1336204992018,2cyclictest1520656-21kworker/u16:1+flush-8:009:04:176
1336205991916,2cyclictest2057583-21kthreadcore12:24:237
1336204991916,2cyclictest1263625-21kworker/u16:1+flush-8:007:24:286
1336204991916,2cyclictest1263625-21kworker/u16:1+flush-8:007:24:286
1336205991818,0cyclictest0-21swapper/710:30:147
1336204991816,2cyclictest1843380-21kworker/u16:0+flush-8:011:29:436
1336204991816,2cyclictest1843380-21kworker/u16:0+flush-8:011:29:436
133620599175,4cyclictest2002816-21tune2fs12:04:157
1336204991715,2cyclictest1879585-21kworker/u16:2+events_unbound11:43:036
1336194991716,1cyclictest0-21swapper/408:29:444
1336194991716,1cyclictest0-21swapper/408:00:034
1336194991716,1cyclictest0-21swapper/407:40:354
1336204991614,2cyclictest1665523-21kworker/u16:4+flush-8:009:55:076
1336204991614,2cyclictest1573653-21kworker/u16:0+events_unbound09:39:366
1336204991613,2cyclictest1484703-21kworker/u16:3+flush-8:008:34:026
1336194991615,1cyclictest0-21swapper/412:32:154
1336194991615,1cyclictest0-21swapper/409:00:284
1336194991615,1cyclictest0-21swapper/407:06:484
133620599158,6cyclictest0-21swapper/709:29:267
1336205991513,2cyclictest1569210-21diskmemload09:39:087
1336205991512,2cyclictest1267-21snmpd11:40:097
1336204991513,2cyclictest1843380-21kworker/u16:0+events_unbound11:44:316
1336204991513,2cyclictest1737606-21kworker/u16:1+events_unbound10:36:526
1336204991513,2cyclictest1573653-21kworker/u16:0+events_unbound10:24:026
1336204991512,2cyclictest1573653-21kworker/u16:0+flush-8:010:29:216
133620499150,1cyclictest0-21swapper/611:34:156
1336199991514,1cyclictest0-21swapper/509:56:235
133619999150,1cyclictest0-21swapper/509:25:015
133619999150,15cyclictest0-21swapper/510:46:135
133619999150,15cyclictest0-21swapper/509:46:375
133619999150,0cyclictest0-21swapper/512:20:585
1336194991515,0cyclictest0-21swapper/410:51:394
1336194991514,1cyclictest0-21swapper/408:44:054
1336194991512,3cyclictest5755-21JS21:50:164
133620599149,4cyclictest1965697-21latency_hist11:49:027
133620599147,6cyclictest0-21swapper/711:55:357
133620599147,6cyclictest0-21swapper/710:19:147
133620599147,6cyclictest0-21swapper/710:09:187
133620599147,6cyclictest0-21swapper/709:14:317
133620599146,7cyclictest0-21swapper/712:15:017
133620599146,7cyclictest0-21swapper/710:04:037
133620599146,7cyclictest0-21swapper/709:10:117
133620599145,8cyclictest0-21swapper/712:12:337
133620599145,8cyclictest0-21swapper/712:12:337
133620599145,8cyclictest0-21swapper/709:08:037
133620599143,9cyclictest1991275-21irqcore11:59:187
1336205991411,2cyclictest1491830-21ntpq08:19:287
1336205991411,2cyclictest0-21swapper/711:09:027
1336205991410,3cyclictest1854766-21ntpq10:59:337
133620599140,13cyclictest1833701-21turbostat10:54:017
133620599140,12cyclictest1096-21ntpd07:44:057
1336204991413,1cyclictest0-21swapper/610:57:416
1336204991413,1cyclictest0-21swapper/609:18:316
1336204991413,1cyclictest0-21swapper/607:59:326
1336204991413,1cyclictest0-21swapper/607:09:156
1336204991412,2cyclictest1879585-21kworker/u16:2+events_unbound11:16:246
1336204991412,2cyclictest1737606-21kworker/u16:1+flush-8:010:24:276
1336204991412,2cyclictest1473832-21kworker/u16:2+events_unbound08:24:166
1336204991411,2cyclictest1967016-21kworker/u16:1+flush-8:012:24:086
133620499140,1cyclictest0-21swapper/610:09:456
133620499140,1cyclictest0-21swapper/608:49:026
133620499140,14cyclictest0-21swapper/609:38:236
1336199991413,1cyclictest0-21swapper/511:26:445
1336199991413,1cyclictest0-21swapper/510:20:405
1336199991413,1cyclictest0-21swapper/510:04:165
1336199991413,1cyclictest0-21swapper/510:00:205
1336199991413,1cyclictest0-21swapper/509:21:055
1336199991412,2cyclictest0-21swapper/512:12:175
1336199991412,2cyclictest0-21swapper/512:12:175
1336199991412,2cyclictest0-21swapper/510:37:425
133619999140,1cyclictest0-21swapper/511:05:465
133619999140,1cyclictest0-21swapper/509:08:565
133619999140,14cyclictest0-21swapper/511:57:575
133619999140,14cyclictest0-21swapper/511:40:175
133619999140,14cyclictest0-21swapper/511:15:135
133619999140,14cyclictest0-21swapper/511:03:525
133619999140,14cyclictest0-21swapper/510:18:375
133619999140,14cyclictest0-21swapper/509:40:475
133619999140,14cyclictest0-21swapper/509:38:545
1336194991413,1cyclictest0-21swapper/411:29:574
1336194991413,1cyclictest0-21swapper/411:29:574
1336194991413,1cyclictest0-21swapper/410:24:324
1336194991413,1cyclictest0-21swapper/409:11:044
1336194991413,1cyclictest0-21swapper/407:25:144
1336194991413,1cyclictest0-21swapper/407:25:144
133619499140,1cyclictest0-21swapper/411:14:404
133619499140,14cyclictest0-21swapper/410:59:224
133619499140,14cyclictest0-21swapper/409:46:324
133620599139,3cyclictest1267-21snmpd08:49:537
133620599139,3cyclictest1267-21snmpd07:37:037
133620599138,4cyclictest1532217-21cat08:44:167
133620599138,4cyclictest1474791-21cat08:14:177
133620599138,4cyclictest1451861-21cut07:59:247
133620599136,6cyclictest0-21swapper/711:49:367
133620599136,6cyclictest0-21swapper/711:22:287
133620599136,6cyclictest0-21swapper/711:05:237
133620599136,6cyclictest0-21swapper/710:56:377
133620599136,6cyclictest0-21swapper/710:45:537
133620599136,6cyclictest0-21swapper/709:49:157
133620599136,6cyclictest0-21swapper/709:46:517
133620599135,7cyclictest0-21swapper/711:34:547
133620599135,7cyclictest0-21swapper/711:31:207
133620599135,7cyclictest0-21swapper/711:31:207
133620599135,7cyclictest0-21swapper/710:35:107
133620599135,7cyclictest0-21swapper/709:55:397
1336205991310,2cyclictest0-21swapper/709:19:177
133620599130,11cyclictest1564197-21kthreadcore08:59:267
133620599130,11cyclictest1385465-21cut07:24:237
133620599130,11cyclictest1385465-21cut07:24:237
1336204991312,1cyclictest0-21swapper/612:12:156
1336204991312,1cyclictest0-21swapper/612:12:156
133620499130,13cyclictest0-21swapper/610:51:516
1336199991312,1cyclictest0-21swapper/511:52:355
1336199991312,1cyclictest0-21swapper/510:55:595
1336199991312,1cyclictest0-21swapper/510:41:575
1336199991312,1cyclictest0-21swapper/510:33:265
133619999130,13cyclictest0-21swapper/512:03:185
1336194991312,1cyclictest65-21ksoftirqd/411:48:244
1336194991312,1cyclictest631rcuc/411:05:124
1336194991312,1cyclictest1627706-21fwupd09:26:024
1336194991312,1cyclictest0-21swapper/410:35:064
1336194991312,1cyclictest0-21swapper/410:30:504
1336194991312,1cyclictest0-21swapper/409:58:124
1336194991312,1cyclictest0-21swapper/409:34:524
1336194991312,1cyclictest0-21swapper/408:39:234
1336194991312,1cyclictest0-21swapper/408:26:554
133619499130,13cyclictest0-21swapper/410:57:294
133619499130,13cyclictest0-21swapper/410:22:294
133619499130,0cyclictest0-21swapper/412:07:574
133619499130,0cyclictest0-21swapper/411:50:084
133620599129,2cyclictest1348628-21cat07:09:077
133620599129,2cyclictest1267-21snmpd08:38:567
133620599128,3cyclictest1267-21snmpd07:54:137
133620599126,5cyclictest1345610-21latency_hist07:09:037
133620599120,4cyclictest1526330-21kthreadcore08:39:217
133620599120,11cyclictest1433114-21kthreadcore07:49:257
133620599120,11cyclictest1392630-21kthreadcore07:29:237
133620599120,11cyclictest1267-21snmpd08:05:167
133620599120,10cyclictest1368909-21/usr/sbin/munin07:19:197
133620499129,2cyclictest1368898-21kworker/u16:2+flush-8:007:49:296
133620499129,2cyclictest1263625-21kworker/u16:1+flush-8:007:04:296
1336204991211,1cyclictest0-21swapper/612:29:266
1336204991211,1cyclictest0-21swapper/610:59:346
1336204991211,1cyclictest0-21swapper/609:59:496
1336204991211,1cyclictest0-21swapper/607:45:596
133619999129,3cyclictest0-21swapper/509:32:545
1336199991211,1cyclictest0-21swapper/511:38:245
1336199991211,1cyclictest0-21swapper/509:52:275
133619999120,6cyclictest0-21swapper/511:44:125
133619999120,4cyclictest2061430-21taskset12:28:325
133619999120,1cyclictest0-21swapper/507:42:045
133619999120,0cyclictest0-21swapper/507:07:425
133619499127,5cyclictest1520656-21kworker/u16:1-xprtiod09:18:004
1336194991212,0cyclictest0-21swapper/408:05:384
1336194991211,1cyclictest0-21swapper/411:58:584
1336194991211,1cyclictest0-21swapper/411:28:044
1336194991211,1cyclictest0-21swapper/410:00:064
1336194991211,1cyclictest0-21swapper/408:56:244
1336194991211,1cyclictest0-21swapper/407:50:114
133620599116,4cyclictest1500521-21grep08:24:247
133620499117,3cyclictest1263625-21kworker/u16:1+flush-8:007:55:336
1336204991110,1cyclictest0-21swapper/611:50:396
133620499110,11cyclictest0-21swapper/608:08:316
133619999119,2cyclictest0-21swapper/508:53:585
1336199991110,1cyclictest0-21swapper/510:50:095
1336199991110,1cyclictest0-21swapper/509:00:255
1336199991110,1cyclictest0-21swapper/508:17:425
1336199991110,1cyclictest0-21swapper/507:44:175
1336199991110,1cyclictest0-21swapper/507:34:595
133619999110,4cyclictest1903760-21taskset11:20:195
133619999110,4cyclictest1592414-21chrt09:12:355
133619999110,4cyclictest1511807-21taskset08:32:055
133619999110,4cyclictest1377878-21chrt07:21:065
133619999110,2cyclictest0-21swapper/510:28:265
1336194991110,1cyclictest0-21swapper/412:00:424
1336194991110,1cyclictest0-21swapper/411:39:344
1336194991110,1cyclictest0-21swapper/411:37:414
1336194991110,1cyclictest0-21swapper/411:12:464
1336194991110,1cyclictest0-21swapper/410:18:144
1336194991110,1cyclictest0-21swapper/410:11:554
1336194991110,1cyclictest0-21swapper/410:07:594
1336194991110,1cyclictest0-21swapper/408:37:204
1336194991110,1cyclictest0-21swapper/407:45:374
1336194991110,1cyclictest0-21swapper/407:36:284
1336194991110,1cyclictest0-21swapper/407:29:324
133619499110,0cyclictest0-21swapper/407:13:564
133620499109,1cyclictest0-21swapper/611:24:296
133620499109,1cyclictest0-21swapper/609:22:286
133619999109,1cyclictest0-21swapper/508:47:305
133619999109,1cyclictest0-21swapper/508:19:455
133619999109,1cyclictest0-21swapper/507:58:005
133619999108,2cyclictest0-21swapper/508:36:475
133619999108,2cyclictest0-21swapper/508:02:245
133619999107,3cyclictest0-21swapper/507:18:445
133619999101,1cyclictest681rcuog/410:09:155
133619999100,4cyclictest1435144-21chrt07:50:305
133619999100,4cyclictest1392844-21taskset07:29:235
133619999100,4cyclictest1387597-21taskset07:28:195
133619999100,4cyclictest1387597-21taskset07:28:195
133619999100,1cyclictest991rcuop/712:16:565
133619999100,1cyclictest681rcuog/412:29:175
133619999100,1cyclictest681rcuog/411:31:155
133619999100,1cyclictest681rcuog/411:31:155
133619499109,1cyclictest3953173-21dockerd09:50:104
133619499109,1cyclictest0-21swapper/412:13:194
133619499109,1cyclictest0-21swapper/412:13:194
133619499109,1cyclictest0-21swapper/409:40:424
133619499109,1cyclictest0-21swapper/409:19:064
133619499109,1cyclictest0-21swapper/409:04:554
133619499109,1cyclictest0-21swapper/408:52:094
133619499109,1cyclictest0-21swapper/408:20:154
133619499108,1cyclictest681rcuog/412:20:014
133619499107,1cyclictest201rcu_preempt08:14:144
133619499105,2cyclictest0-21swapper/411:19:274
13362049996,2cyclictest1473832-21kworker/u16:2+flush-8:008:34:086
13361999990,8cyclictest2012515-21chrt12:06:445
13361999990,8cyclictest1530783-21taskset08:40:225
13361999990,8cyclictest1502147-21chrt08:25:085
13361999990,8cyclictest1472808-21chrt08:09:295
13361999990,4cyclictest1559477-21chrt08:56:495
13361999990,4cyclictest1463774-21taskset08:05:055
13361999990,3cyclictest1358667-21taskset07:10:245
13361999990,1cyclictest991rcuop/709:14:185
13361949999,0cyclictest0-21swapper/407:15:594
13361949998,1cyclictest1463972-21kworker/u16:3-events_unbound08:09:194
13361949998,1cyclictest1263625-21kworker/u16:1-events_unbound07:19:124
13361949996,1cyclictest201rcu_preempt12:14:254
13361949994,3cyclictest0-21swapper/407:54:234
13362049986,2cyclictest1737606-21kworker/u16:1+events_unbound11:08:436
13362049985,2cyclictest1540736-21kworker/u16:3+events_unbound08:54:146
13362049985,2cyclictest1326792-21kworker/u16:3+flush-8:007:29:286
13362049980,7cyclictest0-21swapper/608:40:196
13362049964,2cyclictest1520656-21kworker/u16:1+flush-8:008:59:236
13362049963,2cyclictest15912022sleep609:10:216
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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