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2026-09-13 - 09:56
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Sun Sep 13, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
152400221070,2sleep30-21swapper/321:34:353
18249912850,2sleep30-21swapper/300:24:323
15737942830,2sleep30-21swapper/322:04:293
1313838992418,2cyclictest82050irq/121-eno122:14:311
131383899240,18cyclictest1718957-21cut23:24:321
1313837992320,2cyclictest24617-21JS14:54:060
1313837992312,5cyclictest1672587-21kthreadcore22:59:320
1313837992311,5cyclictest1586477-21kthreadcore22:09:350
2447398220,3rtkit-daemon24472-21rtkit-daemon23:08:481
1313838992215,2cyclictest82050irq/121-eno100:34:321
1313837992210,7cyclictest1836414-21grep00:29:390
1313838992118,2cyclictest1544285-21ssh21:45:021
1313838992115,2cyclictest82050irq/121-eno123:39:281
131383799217,7cyclictest0-21swapper/022:34:400
131383799217,6cyclictest0-21swapper/023:15:020
1313837992116,1cyclictest0-21swapper/019:49:090
131383899209,3cyclictest0-21swapper/123:15:031
1313838992010,4cyclictest1830746-21aten2.4-expect00:29:201
1313838992010,4cyclictest1314649-21seq19:14:271
131383799206,2cyclictest0-21swapper/023:39:470
131383799200,15cyclictest1731966-21df_inode23:34:270
131383999191,13cyclictest14621802sleep220:59:112
1313838991915,1cyclictest191rcu_preempt22:32:391
1313837991916,2cyclictest24648-21gmain22:25:270
131383799191,2cyclictest0-21swapper/021:34:230
1313837991912,6cyclictest1848874-21cstates00:39:300
131383799191,11cyclictest0-21swapper/023:56:430
1313837991910,7cyclictest1429344-21kthreadcore20:34:370
2213291180,7phc2sys0-21swapper/322:19:093
2213291180,3phc2sys0-21swapper/320:05:013
2213291180,2phc2sys0-21swapper/321:56:363
2213291180,2phc2sys0-21swapper/300:15:043
1313839991815,1cyclictest0-21swapper/221:20:022
1313839991815,1cyclictest0-21swapper/220:10:092
1313839991815,1cyclictest0-21swapper/220:04:312
131383899185,8cyclictest351ktimers/122:54:321
131383899184,8cyclictest1485935-21kthreadcore21:14:341
131383899183,9cyclictest1605167-21cut22:19:351
1313838991815,2cyclictest1723335-21gltestperf23:29:271
1313838991815,2cyclictest1568691-21kthreadcore21:59:331
1313838991814,3cyclictest1732749-21kthreadcore23:34:311
1313838991813,4cyclictest1788405-21kthreadcore00:04:331
1313838991812,2cyclictest82050irq/121-eno100:09:441
1313838991812,2cyclictest17850irq/132-ahci[0000:00:17.0]21:45:371
1313838991810,4cyclictest778-21dbus-daemon22:45:011
131383799186,2cyclictest0-21swapper/022:52:320
131383799185,2cyclictest0-21swapper/021:46:250
131383799180,7cyclictest1840880-21sed00:34:320
131383799180,7cyclictest1591693-21grep22:14:310
2213291171,2phc2sys0-21swapper/323:54:113
2213291170,3phc2sys0-21swapper/322:39:103
2213291170,2phc2sys0-21swapper/323:57:483
2213291170,2phc2sys0-21swapper/320:22:093
2213291170,2phc2sys0-21swapper/300:29:103
1313839991714,2cyclictest0-21swapper/223:49:092
1313839991714,1cyclictest0-21swapper/220:45:092
1313838991714,2cyclictest1556188-21irqcore21:54:301
1313838991714,2cyclictest1447132-21proc_pri20:44:381
1313838991714,2cyclictest1426592-21threads20:29:381
131383899171,3cyclictest1616835-21ssh22:29:091
1313838991713,3cyclictest975-21in:imuxsock19:45:551
1313838991713,3cyclictest1584415-21kthreadcore22:09:341
1313838991712,4cyclictest1436644-21kthreadcore20:39:291
1313838991712,1cyclictest82050irq/121-eno100:20:501
131383899171,11cyclictest1520677-21tail21:34:301
131383899171,11cyclictest1427585-21apt-get20:34:101
131383799174,2cyclictest0-21swapper/000:04:120
1313837991714,2cyclictest1575989-21kthreadcore22:04:330
1313837991710,6cyclictest1503035-21hddtemp_smartct21:24:270
131383799170,9cyclictest1768826-21cat23:54:330
2213291160,3phc2sys0-21swapper/322:44:113
2213291160,1phc2sys0-21swapper/319:52:593
131383999162,8cyclictest0-21swapper/222:09:102
131383999161,9cyclictest0-21swapper/223:24:092
131383999161,9cyclictest0-21swapper/200:29:142
1313839991614,1cyclictest0-21swapper/223:10:022
1313839991614,1cyclictest0-21swapper/222:25:022
1313839991614,1cyclictest0-21swapper/219:14:332
1313839991613,1cyclictest0-21swapper/223:40:012
1313839991613,1cyclictest0-21swapper/222:54:222
1313839991613,1cyclictest0-21swapper/222:40:012
1313839991613,1cyclictest0-21swapper/222:19:152
1313839991613,1cyclictest0-21swapper/221:35:012
1313839991613,1cyclictest0-21swapper/221:12:122
1313839991613,1cyclictest0-21swapper/220:55:012
1313839991613,1cyclictest0-21swapper/219:44:332
1313839991613,1cyclictest0-21swapper/219:39:272
1313839991613,1cyclictest0-21swapper/219:20:022
1313839991613,1cyclictest0-21swapper/200:24:132
1313839991613,1cyclictest0-21swapper/200:03:012
131383899168,7cyclictest351ktimers/122:00:331
131383899167,4cyclictest82050irq/121-eno119:34:291
131383899167,2cyclictest82050irq/121-eno100:39:291
131383899161,9cyclictest1510277-21sh21:27:361
1313838991613,2cyclictest24615-21JS14:54:061
1313838991613,2cyclictest1658650-21cron22:50:001
1313838991613,2cyclictest1474771-21proc_pri21:04:361
1313838991613,2cyclictest1456281-21tr20:54:351
1313838991613,2cyclictest1408196-21tr20:19:331
1313838991613,2cyclictest1406179-21munin-plugin-st20:15:001
1313838991612,3cyclictest1754774-21phc2sys-jitter23:44:361
1313838991612,3cyclictest1682622-21kthreadcore23:04:331
1313838991612,3cyclictest1529086-21cpuspeed_turbos21:39:251
1313838991612,3cyclictest1381719-21kthreadcore19:59:301
1313838991612,3cyclictest1342811-21kthreadcore19:29:341
1313838991612,3cyclictest1342811-21kthreadcore19:29:341
131383899160,5cyclictest1493295-21ssh21:19:101
131383799168,7cyclictest24616-21JS14:54:060
131383799168,6cyclictest1764108-21unixbench-2d23:49:410
131383799164,3cyclictest0-21swapper/022:18:510
1313837991613,2cyclictest24614-21JS14:54:060
1313837991613,2cyclictest1646359-21kthreadcore22:44:340
1313837991613,2cyclictest1392460-21cut20:05:010
1313837991612,3cyclictest1425560-21kthreadcore20:29:330
1313837991610,4cyclictest1821887-21/usr/sbin/munin00:24:340
131383799160,13cyclictest1543245-21/usr/sbin/munin21:44:360
2213291153,3phc2sys0-21swapper/321:39:343
2213291150,3phc2sys0-21swapper/323:34:163
2213291150,3phc2sys0-21swapper/323:21:103
2213291150,3phc2sys0-21swapper/321:21:053
2213291150,2phc2sys0-21swapper/300:07:153
2213291150,1phc2sys0-21swapper/322:13:193
131383999151,9cyclictest0-21swapper/222:29:092
131383999151,8cyclictest0-21swapper/200:09:142
131383999151,7cyclictest0-21swapper/223:34:092
131383999151,7cyclictest0-21swapper/222:44:112
1313839991513,1cyclictest0-21swapper/221:25:032
1313839991512,2cyclictest0-21swapper/219:24:222
1313839991512,1cyclictest0-21swapper/223:25:412
1313839991512,1cyclictest0-21swapper/222:14:322
1313839991512,1cyclictest0-21swapper/221:56:252
1313839991512,1cyclictest0-21swapper/221:39:272
1313839991512,1cyclictest0-21swapper/220:29:392
1313839991512,1cyclictest0-21swapper/220:24:342
1313839991512,1cyclictest0-21swapper/219:54:352
1313839991512,1cyclictest0-21swapper/219:46:092
1313839991512,1cyclictest0-21swapper/219:34:292
1313839991511,2cyclictest0-21swapper/223:04:292
1313839991511,2cyclictest0-21swapper/221:44:332
131383899155,3cyclictest1-21systemd00:16:251
131383899153,7cyclictest0-21swapper/119:54:351
131383899152,8cyclictest351ktimers/123:48:161
131383899151,9cyclictest1703758-21sh23:16:391
131383899151,5cyclictest1800940-21sshd-session00:12:231
131383899151,3cyclictest0-21swapper/121:24:071
1313838991512,2cyclictest376-21systemd-journal21:10:011
1313838991512,2cyclictest1414572-21gltestperf20:24:301
1313838991511,3cyclictest1768208-21kthreadcore23:54:321
1313838991511,3cyclictest1482224-21diskmemload22:57:021
1313838991511,3cyclictest1465242-21kthreadcore20:59:341
1313838991511,3cyclictest1336899-21unixbench-2d19:24:411
131383899150,10cyclictest1779860-21cut23:59:341
131383799157,2cyclictest0-21swapper/021:30:000
131383799156,7cyclictest1188-21runrttasks21:37:480
1313837991512,2cyclictest975-21in:imuxsock22:47:220
1313837991512,2cyclictest813-21systemd-logind20:15:010
1313837991512,2cyclictest778-21dbus-daemon22:00:010
1313837991512,2cyclictest778-21dbus-daemon21:05:030
1313837991512,2cyclictest1808409-21cut00:15:020
1313837991512,2cyclictest1753310-21kthreadcore23:44:330
1313837991512,2cyclictest1611671-21kthreadcore22:24:320
1313837991512,2cyclictest1463394-21irqrtprio20:59:320
1313837991512,2cyclictest1372487-21sort19:54:290
1313837991512,2cyclictest1336558-21processes19:24:390
1313837991512,2cyclictest1318018-21kthreadcore19:14:330
1313837991512,2cyclictest1313835-21cyclictest20:44:300
1313837991512,2cyclictest1188-21runrttasks19:25:210
1313837991512,2cyclictest1188-21runrttasks19:25:210
1313837991511,3cyclictest1449681-21kernelversion20:49:310
1313837991511,3cyclictest1397893-21kthreadcore20:09:330
1313837991511,3cyclictest1380490-21kthreadcore19:59:290
1313837991511,3cyclictest1326349-21kthreadcore19:19:350
131383799150,3cyclictest1461555-21idleruntime-cro20:55:010
131383799150,13cyclictest1561805-21wc21:55:010
2213291142,4phc2sys0-21swapper/320:19:113
2213291140,2phc2sys0-21swapper/323:40:263
2213291140,2phc2sys0-21swapper/321:50:323
2213291140,2phc2sys0-21swapper/300:38:453
2213291140,2phc2sys0-21swapper/300:33:283
2213291140,2phc2sys0-21swapper/300:04:413
131383999142,7cyclictest0-21swapper/221:49:102
131383999141,7cyclictest0-21swapper/221:04:102
1313839991412,1cyclictest0-21swapper/220:44:342
1313839991411,1cyclictest0-21swapper/223:59:332
1313839991411,1cyclictest0-21swapper/223:52:222
1313839991411,1cyclictest0-21swapper/223:20:012
1313839991411,1cyclictest0-21swapper/222:34:282
1313839991411,1cyclictest0-21swapper/222:04:112
1313839991411,1cyclictest0-21swapper/220:34:442
1313839991411,1cyclictest0-21swapper/220:19:352
1313839991411,1cyclictest0-21swapper/220:09:342
1313839991411,1cyclictest0-21swapper/219:58:222
1313839991411,1cyclictest0-21swapper/200:34:322
1313839991410,2cyclictest0-21swapper/220:39:092
1313839991410,2cyclictest0-21swapper/200:39:342
1313839991410,2cyclictest0-21swapper/200:16:222
131383999140,7cyclictest0-21swapper/219:29:102
131383999140,7cyclictest0-21swapper/219:29:102
131383899143,6cyclictest1357793-21munin-run19:40:011
131383899141,4cyclictest1393896-21ethtool20:09:301
1313838991411,2cyclictest1449685-21kthreadcore20:49:321
1313838991410,3cyclictest1362704-21kthreadcore19:44:351
1313838991410,2cyclictest0-21swapper/122:20:591
131383899140,5cyclictest1633420-21ssh22:36:471
131383799147,5cyclictest1484482-21/usr/sbin/munin21:14:320
131383799145,2cyclictest0-21swapper/022:39:340
131383799145,2cyclictest0-21swapper/021:16:120
131383799144,8cyclictest1408166-21uname20:19:330
1313837991411,2cyclictest797-21polkitd23:20:020
1313837991411,2cyclictest1688437-21grep23:09:330
1313837991411,2cyclictest1438440-21kthreadcore20:39:300
1313837991411,2cyclictest1415984-21kthreadcore20:24:330
1313837991411,2cyclictest1359224-21sed19:44:310
1313837991411,2cyclictest1355632-21kthreadcore19:39:330
1313837991411,2cyclictest1350048-21kthreadcore19:34:320
1313837991410,3cyclictest1794495-21kthreadcore00:09:360
1313837991410,3cyclictest1479132-21kthreadcore21:09:330
2213291130,2phc2sys0-21swapper/323:46:103
2213291130,2phc2sys0-21swapper/323:15:383
2213291130,2phc2sys0-21swapper/321:49:363
2213291130,2phc2sys0-21swapper/319:39:153
16599142130,5sleep30-21swapper/322:52:013
131383999135,5cyclictest1755725-21taskset23:45:022
1313839991310,1cyclictest0-21swapper/223:10:532
1313839991310,1cyclictest0-21swapper/222:59:312
1313839991310,1cyclictest0-21swapper/222:49:192
1313839991310,1cyclictest0-21swapper/221:54:372
1313839991310,1cyclictest0-21swapper/200:14:342
131383999130,6cyclictest0-21swapper/221:24:302
131383899131,6cyclictest798-21mta-sts-daemon20:03:231
131383799134,7cyclictest1724173-21kthreadcore23:29:300
2213291123,2phc2sys0-21swapper/322:06:433
2213291121,4phc2sys0-21swapper/320:49:093
2213291120,2phc2sys0-21swapper/323:26:363
17401372128,2sleep30-21swapper/323:39:113
131383899128,3cyclictest1313652-21latency_hist19:10:021
131383799127,3cyclictest17850irq/132-ahci[0000:00:17.0]19:10:020
2213291113,2phc2sys0-21swapper/322:23:033
2213291111,2phc2sys0-21swapper/321:43:583
2213291110,4phc2sys0-21swapper/320:54:103
2213291110,2phc2sys0-21swapper/321:16:183
2213291110,2phc2sys0-21swapper/319:49:103
2213291110,2phc2sys0-21swapper/319:19:133
2213291110,2phc2sys0-21swapper/300:11:483
2213291110,1phc2sys0-21swapper/320:59:073
2213291110,1phc2sys0-21swapper/319:55:243
131383999118,1cyclictest0-21swapper/221:06:362
2213291101,2phc2sys0-21swapper/323:04:243
2213291101,2phc2sys0-21swapper/322:46:443
2213291101,2phc2sys0-21swapper/321:04:053
2213291101,2phc2sys0-21swapper/319:34:323
2213291100,4phc2sys0-21swapper/320:10:023
2213291100,3phc2sys0-21swapper/320:29:103
2213291100,2phc2sys0-21swapper/323:10:533
2213291100,2phc2sys0-21swapper/320:39:073
2213291100,2phc2sys0-21swapper/319:09:113
131383999108,1cyclictest0-21swapper/219:10:022
221329191,2phc2sys0-21swapper/322:57:423
221329191,2phc2sys0-21swapper/321:10:073
221329191,2phc2sys0-21swapper/320:34:513
221329190,3phc2sys0-21swapper/322:30:073
221329190,2phc2sys0-21swapper/323:06:323
221329190,2phc2sys0-21swapper/322:26:323
221329190,2phc2sys0-21swapper/321:26:553
221329190,2phc2sys0-21swapper/320:40:043
221329190,2phc2sys0-21swapper/320:14:113
221329190,2phc2sys0-21swapper/319:41:093
221329190,2phc2sys0-21swapper/319:28:383
221329190,2phc2sys0-21swapper/319:28:383
221329190,2phc2sys0-21swapper/319:25:023
221329190,2phc2sys0-21swapper/319:14:163
1475975290,5sleep30-21swapper/321:09:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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