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2026-09-18 - 17:03
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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 376 highest latencies:
System rack0slot2.osadl.org (updated Fri Sep 18, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24896632980,1sleep72489664-21grep11:59:457
19452992970,1sleep71945302-21cut08:04:497
24102862630,1sleep72410287-21cat11:24:597
183054125848,7sleep50-21swapper/507:06:155
183050425419,30sleep70-21swapper/707:05:447
183056724837,7sleep40-21swapper/407:06:384
1831071994038,2cyclictest1767234-21kworker/u16:3+flush-8:008:04:286
1831071993836,2cyclictest2447228-21kworker/u16:6+flush-8:012:29:596
183107399340,32cyclictest2048714-21latency_hist08:59:297
1831071993331,2cyclictest2192825-21kworker/u16:2+flush-8:011:35:056
183064423323,7sleep60-21swapper/607:07:446
1831063993127,3cyclictest2312323-21kworker/u16:1+flush-8:011:01:064
1831071993028,2cyclictest2339278-21kworker/u16:3+flush-8:011:09:346
23742392290,1sleep40-21swapper/411:11:024
1831071992928,1cyclictest2000196-21kworker/u16:1+events_unbound09:19:546
1831073992826,1cyclictest2200518-21ssh09:59:577
1831071992825,3cyclictest1767234-21kworker/u16:3+flush-8:007:29:296
1831073992726,0cyclictest0-21swapper/707:52:587
1831064992724,2cyclictest2312323-21kworker/u16:1+flush-8:011:29:345
1831073992625,0cyclictest0-21swapper/710:15:127
1831073992625,0cyclictest0-21swapper/709:15:167
1831073992625,0cyclictest0-21swapper/709:06:487
1831073992625,0cyclictest0-21swapper/708:11:007
1831073992625,0cyclictest0-21swapper/707:58:437
1831071992625,1cyclictest2536559-21kworker/u16:1+events_unbound12:34:506
1831073992524,0cyclictest0-21swapper/708:35:517
1831073992524,0cyclictest0-21swapper/708:31:067
1831071992523,2cyclictest2487272-21kworker/u16:2+flush-8:012:14:276
1831071992523,2cyclictest2487272-21kworker/u16:2+flush-8:012:14:276
1831071992523,2cyclictest1872119-21kworker/u16:4+events_unbound07:44:516
1831071992523,2cyclictest1767234-21kworker/u16:3+events_unbound08:19:446
1831073992423,0cyclictest0-21swapper/707:22:117
1831073992322,0cyclictest0-21swapper/707:17:067
1831073992318,4cyclictest2536374-21latency_hist12:19:287
20223512220,1chrt2022353-21kthreadcore08:44:477
20223512220,1chrt2022353-21kthreadcore08:44:477
1831073992220,1cyclictest2326903-21sh10:54:237
1831073992218,3cyclictest2422445-21proc_pri11:29:587
183106399220,4cyclictest0-21swapper/411:17:454
1831071992119,2cyclictest2339278-21kworker/u16:3+events_unbound11:30:036
1831073992019,0cyclictest0-21swapper/708:16:587
1831071992018,2cyclictest2487272-21kworker/u16:2+flush-8:012:24:286
1831071992018,2cyclictest2192825-21kworker/u16:2+events_unbound11:06:386
1831071991917,2cyclictest2237558-21kworker/u16:6+flush-8:010:19:236
1831071991917,2cyclictest2237558-21kworker/u16:6+events_unbound10:44:586
1831071991917,2cyclictest2237558-21kworker/u16:6+events_unbound10:44:586
1831073991817,0cyclictest0-21swapper/710:55:067
1831073991817,0cyclictest0-21swapper/708:22:387
1831073991815,2cyclictest1274-21snmpd10:09:047
183107399180,16cyclictest2191343-21latency_hist09:59:287
1831071991816,2cyclictest2164239-21kworker/u16:0+flush-8:010:29:466
1831064991815,2cyclictest2164239-21kworker/u16:0+flush-8:010:05:355
1831073991716,0cyclictest0-21swapper/711:10:057
1831073991716,0cyclictest0-21swapper/707:49:257
1831073991615,0cyclictest0-21swapper/707:35:097
1831073991615,0cyclictest0-21swapper/707:28:387
1831073991615,0cyclictest0-21swapper/707:10:587
1831073991615,0cyclictest0-21swapper/707:10:587
1831073991611,3cyclictest2570386-21awk12:29:597
1831071991614,2cyclictest2447228-21kworker/u16:6+flush-8:011:45:066
1831071991614,2cyclictest2192825-21kworker/u16:2+flush-8:010:14:236
183106499160,16cyclictest0-21swapper/511:15:145
1831063991613,2cyclictest1872119-21kworker/u16:4+flush-8:008:09:344
1831073991514,0cyclictest0-21swapper/710:10:297
1831073991514,0cyclictest0-21swapper/707:42:177
1831073991514,0cyclictest0-21swapper/707:33:177
1831073991512,2cyclictest2538650-21kthreadcore12:19:457
1831073991512,2cyclictest0-21swapper/708:24:297
1831073991510,4cyclictest2388516-21latency_hist11:19:287
1831071991513,2cyclictest2164239-21kworker/u16:0+events_unbound09:59:596
1831071991513,2cyclictest1872119-21kworker/u16:4+events_unbound08:29:426
1831071991513,2cyclictest1767234-21kworker/u16:3+events_unbound08:29:286
183107199150,1cyclictest86-21ksoftirqd/611:23:506
1831064991513,2cyclictest0-21swapper/508:51:555
183106499150,1cyclictest0-21swapper/509:38:455
183106399150,14cyclictest0-21swapper/412:34:354
1831073991413,0cyclictest0-21swapper/708:50:587
1831073991412,1cyclictest2550439-21ssh12:24:447
1831073991412,1cyclictest2392353-21grep11:19:477
1831073991410,3cyclictest1274-21snmpd12:07:527
183107399140,13cyclictest994-21gmain10:49:287
183107399140,13cyclictest994-21gmain10:49:287
1831071991413,1cyclictest0-21swapper/612:02:566
1831071991413,1cyclictest0-21swapper/611:28:246
1831071991412,2cyclictest2447228-21kworker/u16:6+events_unbound12:24:506
1831071991412,2cyclictest2192825-21kworker/u16:2+flush-8:010:24:386
1831071991412,2cyclictest2000196-21kworker/u16:1+flush-8:008:54:286
1831071991411,2cyclictest2043068-21kworker/u16:2+flush-8:009:34:286
183107199140,1cyclictest0-21swapper/611:55:126
183107199140,1cyclictest0-21swapper/609:49:236
183107199140,14cyclictest0-21swapper/611:00:296
1831064991413,1cyclictest0-21swapper/512:06:575
1831064991413,1cyclictest0-21swapper/512:01:455
1831064991413,1cyclictest0-21swapper/509:57:305
1831064991413,1cyclictest0-21swapper/508:09:495
183106499140,1cyclictest0-21swapper/512:30:175
183106499140,1cyclictest0-21swapper/510:58:225
183106499140,1cyclictest0-21swapper/510:47:295
183106499140,1cyclictest0-21swapper/510:47:295
183106499140,1cyclictest0-21swapper/510:44:205
183106499140,14cyclictest0-21swapper/511:58:075
183106499140,14cyclictest0-21swapper/510:54:165
183106499140,0cyclictest0-21swapper/511:20:175
1831063991413,1cyclictest0-21swapper/411:29:094
1831063991413,1cyclictest0-21swapper/410:56:404
1831063991413,1cyclictest0-21swapper/407:24:564
183106399140,14cyclictest0-21swapper/412:10:474
183106399140,14cyclictest0-21swapper/412:10:474
183106399140,14cyclictest0-21swapper/411:55:574
183106399140,14cyclictest0-21swapper/410:09:234
25122802130,0sleep72512283-21cpu12:09:397
25122802130,0sleep72512283-21cpu12:09:397
183107399139,3cyclictest1274-21snmpd11:06:097
183107399139,3cyclictest1274-21snmpd10:26:317
183107399139,3cyclictest1274-21snmpd10:22:047
183107399138,4cyclictest1933234-21cat07:59:447
1831073991313,0cyclictest0-21swapper/709:02:017
1831073991310,2cyclictest0-21swapper/712:34:417
183107399130,12cyclictest1274-21snmpd10:59:557
1831071991312,1cyclictest0-21swapper/611:39:456
1831071991312,1cyclictest0-21swapper/610:43:186
1831071991312,1cyclictest0-21swapper/609:29:226
1831071991312,1cyclictest0-21swapper/608:39:426
183107199130,13cyclictest0-21swapper/611:51:346
1831064991312,1cyclictest0-21swapper/512:35:205
1831064991312,1cyclictest0-21swapper/511:25:195
1831064991312,1cyclictest0-21swapper/511:01:595
1831064991312,1cyclictest0-21swapper/510:37:335
1831064991312,1cyclictest0-21swapper/509:40:575
1831064991312,1cyclictest0-21swapper/509:26:465
1831064991312,1cyclictest0-21swapper/509:16:215
1831064991312,1cyclictest0-21swapper/508:58:425
1831064991312,1cyclictest0-21swapper/508:18:115
1831064991312,1cyclictest0-21swapper/507:54:325
183106499130,13cyclictest0-21swapper/510:15:295
183106499130,13cyclictest0-21swapper/509:46:195
183106499130,13cyclictest0-21swapper/509:23:365
183106499130,13cyclictest0-21swapper/508:03:505
1831063991312,1cyclictest0-21swapper/411:04:524
1831063991312,1cyclictest0-21swapper/410:30:304
1831063991312,1cyclictest0-21swapper/410:15:134
1831063991312,1cyclictest0-21swapper/409:38:284
1831063991312,1cyclictest0-21swapper/408:16:394
1831063991310,2cyclictest2000196-21kworker/u16:1+flush-8:008:44:544
1831063991310,2cyclictest2000196-21kworker/u16:1+flush-8:008:44:544
183106399130,13cyclictest0-21swapper/412:30:484
183106399130,13cyclictest0-21swapper/409:46:024
183107399129,2cyclictest1274-21snmpd11:37:317
183107399128,3cyclictest1274-21snmpd11:55:257
183107399128,3cyclictest1274-21snmpd10:41:207
183107399128,3cyclictest1274-21snmpd09:41:077
183107399128,3cyclictest1274-21snmpd09:31:337
183107399128,3cyclictest1274-21snmpd09:25:127
183107399128,3cyclictest1274-21snmpd09:09:457
183107399127,4cyclictest2451480-21cat11:44:437
183107399120,10cyclictest2463884-21cat11:49:427
183107399120,10cyclictest1274-21snmpd09:44:377
183107199129,2cyclictest2164239-21kworker/u16:0+flush-8:010:54:336
1831071991211,1cyclictest0-21swapper/610:52:466
1831071991211,1cyclictest0-21swapper/609:57:266
1831071991211,1cyclictest0-21swapper/608:57:126
1831071991210,2cyclictest2164239-21kworker/u16:0+events_unbound09:51:396
1831064991211,1cyclictest0-21swapper/512:25:145
1831064991211,1cyclictest0-21swapper/511:49:555
1831064991211,1cyclictest0-21swapper/511:42:125
1831064991211,1cyclictest0-21swapper/511:10:115
1831064991211,1cyclictest0-21swapper/511:06:055
1831064991211,1cyclictest0-21swapper/509:33:515
1831064991211,1cyclictest0-21swapper/509:13:125
1831064991211,1cyclictest0-21swapper/508:27:295
183106499120,12cyclictest0-21swapper/509:02:195
183106499120,12cyclictest0-21swapper/507:41:265
1831063991211,1cyclictest0-21swapper/411:59:354
1831063991211,1cyclictest0-21swapper/411:32:474
1831063991211,1cyclictest0-21swapper/411:24:064
1831063991211,1cyclictest0-21swapper/410:53:034
1831063991211,1cyclictest0-21swapper/410:46:164
1831063991211,1cyclictest0-21swapper/410:46:164
1831063991211,1cyclictest0-21swapper/410:43:074
1831063991211,1cyclictest0-21swapper/409:57:144
1831063991211,1cyclictest0-21swapper/409:40:414
1831063991211,1cyclictest0-21swapper/409:23:204
1831063991211,1cyclictest0-21swapper/409:12:564
1831063991211,1cyclictest0-21swapper/408:04:594
183106399120,1cyclictest0-21swapper/408:52:554
183106399120,12cyclictest0-21swapper/407:22:344
183107399117,3cyclictest1274-21snmpd10:39:207
183107399116,4cyclictest2266668-21cat10:29:437
183107399116,4cyclictest2010936-21cat08:39:427
183107399112,8cyclictest1213-21tuned09:22:517
183107399110,3cyclictest2441166-21cat11:39:477
1831071991110,1cyclictest0-21swapper/611:18:186
1831071991110,1cyclictest0-21swapper/609:16:456
1831071991110,1cyclictest0-21swapper/608:14:576
183107199110,1cyclictest0-21swapper/609:05:526
183107199110,11cyclictest0-21swapper/609:01:186
183107199110,11cyclictest0-21swapper/607:35:326
183107199110,11cyclictest0-21swapper/607:33:106
1831064991110,1cyclictest0-21swapper/512:19:245
1831064991110,1cyclictest0-21swapper/510:30:465
1831064991110,1cyclictest0-21swapper/510:12:205
1831064991110,1cyclictest0-21swapper/510:03:205
1831064991110,1cyclictest0-21swapper/509:51:405
1831064991110,1cyclictest0-21swapper/508:45:565
1831064991110,1cyclictest0-21swapper/508:45:565
183106499110,11cyclictest0-21swapper/508:40:535
1831063991110,1cyclictest0-21swapper/412:07:284
1831063991110,1cyclictest0-21swapper/411:51:514
1831063991110,1cyclictest0-21swapper/411:48:144
1831063991110,1cyclictest0-21swapper/410:36:494
1831063991110,1cyclictest0-21swapper/409:04:444
1831063991110,1cyclictest0-21swapper/408:56:324
183106399110,11cyclictest0-21swapper/408:34:284
183106399110,0cyclictest0-21swapper/409:00:384
183107399107,2cyclictest1274-21snmpd09:37:097
183107199109,1cyclictest0-21swapper/608:47:066
183107199109,1cyclictest0-21swapper/608:47:066
183107199108,2cyclictest2000196-21kworker/u16:1+flush-8:010:05:396
183107199107,2cyclictest1832253-21sed07:09:446
183107199107,2cyclictest1832253-21sed07:09:446
183107199106,3cyclictest1901327-21kthreadcore07:39:486
183107199105,4cyclictest1917383-21cut07:49:476
183107199100,9cyclictest0-21swapper/610:34:576
183106499109,1cyclictest0-21swapper/511:45:495
183106499107,2cyclictest1891997-21memory07:34:495
183106399109,1cyclictest0-21swapper/412:27:014
183106399109,1cyclictest0-21swapper/411:36:244
183106399109,1cyclictest0-21swapper/410:12:034
183106399109,1cyclictest0-21swapper/409:33:354
183106399109,1cyclictest0-21swapper/409:16:054
183106399109,1cyclictest0-21swapper/407:50:004
183106399107,2cyclictest2164239-21kworker/u16:0+flush-8:010:00:214
18310739994,4cyclictest2170239-21grep09:49:487
18310719998,1cyclictest0-21swapper/609:13:366
18310719997,2cyclictest86-21ksoftirqd/608:09:416
18310719990,9cyclictest0-21swapper/610:19:596
18310719990,9cyclictest0-21swapper/609:38:316
18310719990,3cyclictest2510140-21chrt12:06:346
18310719990,2cyclictest1841380-21fschecks_time07:14:306
18310649998,1cyclictest0-21swapper/511:38:065
18310649998,1cyclictest0-21swapper/508:35:225
18310639998,1cyclictest0-21swapper/410:27:214
18310639995,3cyclictest1898847-21kthreadcore07:39:464
18310639994,4cyclictest999-21gdbus11:39:304
18310719986,2cyclictest86-21ksoftirqd/612:18:386
18310719986,2cyclictest1767234-21kworker/u16:3+flush-8:008:34:456
18310719986,1cyclictest1855086-21cstates07:19:416
18310719983,5cyclictest0-21swapper/609:39:426
18310649986,1cyclictest0-21swapper/507:44:425
18310649983,4cyclictest1913384-21expr07:49:405
18310649983,4cyclictest1862929-21/usr/sbin/munin07:19:515
18310639987,1cyclictest0-21swapper/409:51:244
18310639987,1cyclictest0-21swapper/408:39:304
18310639984,3cyclictest1843177-21kthreadcore07:14:324
18310639984,3cyclictest1831458-21cpuspeed_turbos07:09:404
18310639984,3cyclictest1831458-21cpuspeed_turbos07:09:404
18310639983,4cyclictest1908764-21grep07:44:484
18310649976,1cyclictest0-21swapper/512:13:345
18310649976,1cyclictest0-21swapper/512:13:345
18310649975,1cyclictest0-21swapper/507:24:445
18310649975,1cyclictest0-21swapper/507:09:405
18310649975,1cyclictest0-21swapper/507:09:405
18310649973,3cyclictest1874088-21cat07:29:405
18310649973,3cyclictest1842344-21cut07:14:315
18310639976,1cyclictest0-21swapper/410:21:034
18310639976,1cyclictest0-21swapper/407:29:404
18310639973,3cyclictest1884767-21sed07:34:444
18310639972,2cyclictest0-21swapper/412:17:234
18310639970,6cyclictest0-21swapper/408:04:184
18310719960,6cyclictest0-21swapper/608:08:046
18310719960,1cyclictest0-21swapper/607:54:466
18310649965,1cyclictest0-21swapper/509:05:295
18310649963,2cyclictest25367752sleep512:19:325
18310649963,2cyclictest22419132sleep510:19:435
18310639965,1cyclictest0-21swapper/409:26:294
18310639964,2cyclictest2447228-21kworker/u16:6+nfsiod12:20:334
18310639963,2cyclictest2009772-21turbostat08:39:284
18310639960,6cyclictest0-21swapper/408:24:294
18310649951,3cyclictest0-21swapper/510:24:295
18310649950,5cyclictest0-21swapper/508:29:435
18310649950,5cyclictest0-21swapper/508:19:405
18310649950,5cyclictest0-21swapper/508:04:355
18310639950,4cyclictest1981833-21chrt08:24:414
18310639950,4cyclictest1931721-21chrt07:55:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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