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2025-09-18 - 16:03
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Thu Sep 18, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190856021100,1sleep10-21swapper/108:54:291
22433032500,0sleep02243304-21fschecks_time12:09:260
19656882290,1sleep20-21swapper/209:29:372
21004582280,2sleep20-21swapper/210:46:402
1783412992219,2cyclictest1790248-21munin-plugin-st07:15:021
1783411992212,4cyclictest1783405-21cyclictest09:14:080
1783411992211,6cyclictest0-21swapper/011:10:020
1783417992119,1cyclictest0-21swapper/209:45:022
1783412992117,3cyclictest1703-21in:imuxsock11:20:001
178341199216,5cyclictest2050239-21kthreadcore10:19:340
178341199215,7cyclictest0-21swapper/010:24:230
1783412992013,3cyclictest1943077-21/usr/sbin/munin09:19:371
1783411992017,2cyclictest260-21systemd-journal11:15:020
1783411992017,2cyclictest1715-21systemd-logind11:30:010
1783411992017,2cyclictest1-21systemd09:35:020
1783411992017,2cyclictest1-21systemd08:35:000
1783411992012,4cyclictest2295650-21cstates12:39:250
1783411992012,4cyclictest1995831-21/usr/sbin/munin09:49:320
1783411992011,5cyclictest1646-1atopacctd11:34:240
1783417991916,2cyclictest0-21swapper/207:20:012
1783417991916,1cyclictest0-21swapper/212:08:032
1783417991916,1cyclictest0-21swapper/210:40:002
1783417991916,1cyclictest0-21swapper/208:40:002
178341799191,10cyclictest0-21swapper/210:00:012
1783412991916,2cyclictest2257386-21kworker/u16:112:15:021
1783412991916,2cyclictest2142489-21sendmail_mailtr11:09:351
1783412991916,2cyclictest1821997-21wc07:40:001
178341199199,9cyclictest0-21swapper/011:24:330
1783411991916,2cyclictest2116948-21latency_hist10:55:020
1783411991916,2cyclictest1876436-21systemd-run08:25:000
178341199190,15cyclictest0-21swapper/012:04:300
2555591180,2phc2sys0-21swapper/310:46:583
2555591180,2phc2sys0-21swapper/310:23:183
2555591180,2phc2sys0-21swapper/310:00:423
1783417991816,1cyclictest0-21swapper/210:25:022
1783417991816,1cyclictest0-21swapper/210:20:022
1783417991815,1cyclictest0-21swapper/212:24:262
1783417991815,1cyclictest0-21swapper/209:19:352
1783412991815,2cyclictest1783405-21cyclictest09:50:021
1783412991815,2cyclictest0-21swapper/110:40:011
1783412991814,3cyclictest260-21systemd-journal08:10:011
1783412991811,3cyclictest1646-1atopacctd12:24:301
178341199188,5cyclictest0-21swapper/012:15:010
178341199188,2cyclictest0-21swapper/009:36:120
1783411991815,2cyclictest1900807-21ls08:45:000
1783411991815,2cyclictest1715-21systemd-logind07:50:020
1783411991815,2cyclictest1715-21systemd-logind07:50:020
1783411991812,5cyclictest2265531-21timerwakeupswit12:19:400
2555591172,2phc2sys0-21swapper/311:40:253
2555591170,2phc2sys0-21swapper/310:56:353
2555591170,2phc2sys0-21swapper/310:18:013
1783417991715,1cyclictest0-21swapper/212:34:412
1783417991715,1cyclictest0-21swapper/210:55:022
1783417991715,1cyclictest0-21swapper/210:45:012
1783417991714,1cyclictest0-21swapper/212:40:002
1783417991714,1cyclictest0-21swapper/212:03:182
1783417991714,1cyclictest0-21swapper/208:50:012
1783417991713,2cyclictest0-21swapper/208:14:362
178341299178,4cyclictest0-21swapper/112:04:301
178341299178,4cyclictest0-21swapper/111:35:001
1783412991715,1cyclictest7977-21rtkit-daemon10:24:051
1783412991714,2cyclictest2151598-21sed11:14:371
1783412991714,2cyclictest1633-21dbus-daemon11:30:011
1783412991713,3cyclictest2212688-21mailstats11:49:361
1783412991713,3cyclictest2094519-21kthreadcore10:44:301
1783412991713,2cyclictest1715-21systemd-logind11:55:011
1783412991713,2cyclictest0-21swapper/110:05:021
178341199177,6cyclictest1-21systemd11:40:010
1783411991714,2cyclictest1789841-21latency_hist07:15:010
1783411991714,2cyclictest1706-21rs:main0
1783411991714,2cyclictest1-21systemd09:30:000
1783411991712,4cyclictest2004752-21aten_repower_en09:54:250
1783411991710,6cyclictest0-21swapper/010:39:320
1783411991710,4cyclictest2208833-21irqrtprio11:49:300
797898160,2rtkit-daemon0-21swapper/110:48:111
2555591160,2phc2sys0-21swapper/311:13:483
2555591160,2phc2sys0-21swapper/309:53:493
1783417991614,1cyclictest0-21swapper/207:40:012
1783417991613,1cyclictest0-21swapper/212:20:012
1783417991613,1cyclictest0-21swapper/211:59:272
1783417991613,1cyclictest0-21swapper/211:39:172
1783417991613,1cyclictest0-21swapper/211:14:252
1783417991613,1cyclictest0-21swapper/210:06:272
1783417991613,1cyclictest0-21swapper/209:11:312
1783417991613,1cyclictest0-21swapper/208:44:362
1783417991613,1cyclictest0-21swapper/208:35:002
1783417991613,1cyclictest0-21swapper/207:54:402
1783417991613,1cyclictest0-21swapper/207:49:552
1783417991613,1cyclictest0-21swapper/207:49:552
178341299168,3cyclictest0-21swapper/112:36:541
1783412991613,2cyclictest2117689-21kworker/u16:2-writeback11:25:011
1783412991613,2cyclictest2019283-21apt-config10:00:001
1783412991613,2cyclictest1984055-21latency_hist09:40:001
1783412991613,2cyclictest1783405-21cyclictest12:09:261
1783412991612,3cyclictest2280659-21kthreadcore12:29:301
1783412991612,3cyclictest2120823-21ps10:59:281
1783412991612,3cyclictest1801236-21kthreadcore07:24:351
178341299160,4cyclictest0-21swapper/109:11:221
178341199169,2cyclictest0-21swapper/012:29:030
178341199168,7cyclictest2096692-21tr10:44:310
178341199166,5cyclictest0-21swapper/010:09:270
1783411991614,1cyclictest1913230-21apt-config08:55:020
1783411991614,1cyclictest0-21swapper/007:30:010
1783411991613,2cyclictest7977-21rtkit-daemon10:33:550
1783411991613,2cyclictest1882590-21latency_hist08:30:010
1783411991613,2cyclictest1783405-21cyclictest08:14:370
1783411991613,2cyclictest1646-1atopacctd10:14:020
1783411991612,3cyclictest2117689-21kworker/u16:2+nfsiod11:56:150
1783411991612,2cyclictest1957866-21latency_hist09:25:010
797898150,6rtkit-daemon171ktimers/007:24:350
2555591150,5phc2sys0-21swapper/312:00:483
2555591150,3phc2sys0-21swapper/310:36:563
2555591150,2phc2sys0-21swapper/311:05:543
2555591150,2phc2sys0-21swapper/310:28:353
2555591150,2phc2sys0-21swapper/309:41:063
2555591150,2phc2sys0-21swapper/309:27:243
178341799153,9cyclictest2179332-21chrt11:31:212
1783417991513,1cyclictest0-21swapper/211:26:552
1783417991513,1cyclictest0-21swapper/210:25:052
1783417991513,1cyclictest0-21swapper/209:45:212
1783417991513,1cyclictest0-21swapper/209:00:022
1783417991513,1cyclictest0-21swapper/208:54:232
1783417991512,1cyclictest0-21swapper/211:55:002
1783417991512,1cyclictest0-21swapper/211:45:012
1783417991512,1cyclictest0-21swapper/209:34:272
1783417991512,1cyclictest0-21swapper/207:15:022
1783417991511,2cyclictest0-21swapper/210:33:372
1783417991511,2cyclictest0-21swapper/209:09:272
1783417991511,2cyclictest0-21swapper/208:19:312
1783417991510,2cyclictest0-21swapper/212:10:392
178341299159,2cyclictest797898rtkit-daemon09:05:461
178341299157,3cyclictest0-21swapper/112:20:021
178341299154,5cyclictest1761-21gdbus10:09:321
1783412991512,2cyclictest28440-21packagekitd09:34:411
1783412991512,2cyclictest260-21systemd-journal08:37:561
1783412991512,2cyclictest2195141-21sendmail_mailtr11:39:361
1783412991512,2cyclictest2077809-21kthreadcore10:34:311
1783412991512,2cyclictest2054943-21sh10:20:021
1783412991512,2cyclictest1864280-21cut08:15:011
1783412991511,3cyclictest1952752-21gltestperf09:24:291
178341199158,6cyclictest2071425-21cut10:29:340
178341199157,7cyclictest1820286-21tr07:39:300
178341199157,2cyclictest0-21swapper/009:56:040
178341199156,7cyclictest2131269-21tr11:04:300
178341199156,5cyclictest0-21swapper/010:59:300
1783411991513,1cyclictest1840076-21cron07:55:000
1783411991512,2cyclictest2204784-21latency_hist11:45:020
1783411991512,2cyclictest1926282-21cstates09:09:250
1783411991512,2cyclictest1797362-21mailstats07:19:340
1783411991512,2cyclictest1646-1atopacctd11:54:270
1783411991512,2cyclictest1610-21gmain09:00:010
1783411991512,2cyclictest0-21swapper/008:50:000
1783411991511,3cyclictest1759323-21kworker/u16:1+nfsiod09:41:040
178341199150,2cyclictest0-21swapper/011:10:200
2555591141,2phc2sys0-21swapper/312:06:023
2555591140,3phc2sys0-21swapper/311:59:183
2555591140,2phc2sys0-21swapper/309:19:383
1783417991412,1cyclictest0-21swapper/211:10:022
1783417991412,1cyclictest0-21swapper/210:03:552
1783417991412,1cyclictest0-21swapper/209:39:082
1783417991412,1cyclictest0-21swapper/209:20:042
1783417991412,1cyclictest0-21swapper/207:44:292
1783417991412,1cyclictest0-21swapper/207:31:212
1783417991412,1cyclictest0-21swapper/207:30:022
1783417991412,1cyclictest0-21swapper/207:10:022
1783417991411,2cyclictest0-21swapper/210:59:332
1783417991411,1cyclictest0-21swapper/211:49:352
1783417991411,1cyclictest0-21swapper/211:24:332
1783417991411,1cyclictest0-21swapper/211:00:302
1783417991411,1cyclictest0-21swapper/210:11:462
1783417991411,1cyclictest0-21swapper/209:55:012
1783417991411,1cyclictest0-21swapper/208:29:222
178341299149,1cyclictest797898rtkit-daemon09:41:451
178341299148,5cyclictest1783405-21cyclictest09:52:221
178341299147,2cyclictest176650irq/121-eno111:42:181
1783412991412,1cyclictest1822689-21head07:44:241
1783412991411,2cyclictest2113751-21kthreadcore10:54:341
1783412991411,2cyclictest2067479-21irqcore10:29:291
1783412991411,2cyclictest2040087-21aten_repower_en10:14:241
1783412991411,2cyclictest1920494-21fschecks_time09:04:291
1783412991411,2cyclictest1873703-21kthreadcore08:24:291
1783412991411,2cyclictest1806483-21kthreadcore07:29:281
1783412991411,2cyclictest1715-21systemd-logind07:55:011
1783412991411,2cyclictest1646-1atopacctd09:29:371
1783412991411,2cyclictest0-21swapper/108:35:011
1783412991410,3cyclictest2129278-21cut11:04:271
1783412991410,3cyclictest1915444-21kthreadcore08:59:281
1783412991410,3cyclictest1905297-21kthreadcore08:49:321
1783412991410,3cyclictest1790978-21kthreadcore07:15:021
178341199145,5cyclictest0-21swapper/010:47:560
1783411991411,2cyclictest1867641-21kthreadcore08:19:320
1783411991411,2cyclictest1-21systemd07:34:190
1783411991410,3cyclictest2010457-21kworker/u16:0+nfsiod10:00:560
1783411991410,2cyclictest1852384-21latency_hist08:05:010
178341199140,5cyclictest0-21swapper/012:31:490
2555591131,3phc2sys0-21swapper/307:14:303
2555591130,2phc2sys0-21swapper/312:37:363
2555591130,2phc2sys0-21swapper/312:27:303
2555591130,2phc2sys0-21swapper/311:25:393
2555591130,2phc2sys0-21swapper/310:33:163
2555591130,2phc2sys0-21swapper/309:37:303
2555591130,2phc2sys0-21swapper/309:10:403
2555591130,1phc2sys0-21swapper/307:54:253
1783417991311,1cyclictest0-21swapper/212:25:322
1783417991311,1cyclictest0-21swapper/211:15:332
1783417991311,1cyclictest0-21swapper/209:04:332
1783417991310,1cyclictest0-21swapper/208:25:002
1783417991310,1cyclictest0-21swapper/208:09:242
178341299139,3cyclictest1812279-21kthreadcore07:34:301
178341299139,3cyclictest1-21systemd08:18:551
178341299137,5cyclictest260-21systemd-journal11:55:021
1783412991310,2cyclictest2287138-21cut12:34:331
1783412991310,2cyclictest1841868-21irqrtprio07:59:291
1783412991310,2cyclictest1830377-21kthreadcore07:49:311
1783412991310,2cyclictest1830377-21kthreadcore07:49:311
178341299130,9cyclictest1882591-21latency_hist08:30:011
178341199138,4cyclictest176650irq/121-eno108:09:240
178341199137,1cyclictest0-21swapper/009:19:320
178341199131,7cyclictest1920397-21diskstats09:04:280
178341199130,3cyclictest0-21swapper/008:35:560
2555591122,2phc2sys0-21swapper/311:04:303
2555591120,4phc2sys0-21swapper/311:45:263
2555591120,3phc2sys0-21swapper/312:35:003
2555591120,3phc2sys0-21swapper/310:10:063
2555591120,2phc2sys0-21swapper/309:30:583
2555591120,2phc2sys0-21swapper/308:49:243
2555591120,2phc2sys0-21swapper/307:33:503
2555591120,2phc2sys0-21swapper/307:27:093
2555591120,1phc2sys0-21swapper/309:58:033
2555591120,1phc2sys0-21swapper/308:44:073
178341799127,3cyclictest1840571-21taskset07:57:282
1783417991210,1cyclictest0-21swapper/207:24:292
178341299129,2cyclictest0-21swapper/108:04:281
1783411991210,1cyclictest1783405-21cyclictest07:44:230
178341199120,3cyclictest0-21swapper/007:56:450
2555591115,2phc2sys0-21swapper/310:44:333
2555591111,3phc2sys0-21swapper/312:20:333
2555591110,3phc2sys0-21swapper/310:50:353
2555591110,2phc2sys0-21swapper/311:23:093
2555591110,1phc2sys0-21swapper/308:55:213
2555591110,1phc2sys0-21swapper/308:03:553
22145362110,2sleep30-21swapper/311:51:313
178341799119,1cyclictest0-21swapper/208:02:492
178341299118,2cyclictest1783483-21apt-key07:10:011
178341299114,5cyclictest1895517-21aten_repower_vo08:44:251
178341199114,5cyclictest1633-21dbus-daemon07:10:020
2555591104,2phc2sys0-21swapper/311:16:513
2555591101,4phc2sys0-21swapper/307:44:233
2555591101,4phc2sys0-21swapper/307:24:273
2555591101,3phc2sys0-21swapper/311:37:053
2555591101,3phc2sys0-21swapper/311:30:313
2555591101,3phc2sys0-21swapper/308:54:243
2555591101,2phc2sys0-21swapper/308:08:433
2555591100,2phc2sys0-21swapper/312:12:393
2555591100,2phc2sys0-21swapper/309:45:033
2555591100,2phc2sys0-21swapper/309:04:393
2555591100,2phc2sys0-21swapper/308:38:083
2555591100,2phc2sys0-21swapper/307:19:233
2555591100,1phc2sys0-21swapper/308:20:423
2555591100,1phc2sys0-21swapper/308:12:013
2555591100,1phc2sys0-21swapper/307:06:573
255559191,2phc2sys0-21swapper/309:20:183
255559191,2phc2sys0-21swapper/307:55:023
255559190,4phc2sys0-21swapper/307:39:263
255559190,2phc2sys0-21swapper/312:15:323
255559190,2phc2sys0-21swapper/310:05:303
255559190,2phc2sys0-21swapper/309:09:283
255559190,2phc2sys0-21swapper/308:34:373
255559190,2phc2sys0-21swapper/308:29:283
255559190,2phc2sys0-21swapper/308:19:343
255559190,2phc2sys0-21swapper/307:47:443
255559190,2phc2sys0-21swapper/307:47:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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