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2025-12-23 - 23:36
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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 Tue Dec 23, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146244721010,1sleep00-21swapper/007:48:320
1413279992315,4cyclictest1578446-21python309:23:340
1413283992219,2cyclictest1578950-21systemd-run09:25:011
141328499207,2cyclictest0-21swapper/208:20:012
1413284992016,2cyclictest0-21swapper/207:28:222
1413283992010,5cyclictest1610685-21cut09:53:281
1413283992010,5cyclictest1610685-21cut09:53:281
18087132190,2sleep20-21swapper/212:35:022
1413284991917,1cyclictest0-21swapper/208:25:022
1413283991916,2cyclictest1296-21polkitd12:35:021
1413283991915,3cyclictest1533774-21kthreadcore08:48:301
141327999196,6cyclictest0-21swapper/008:38:240
1413279991918,1cyclictest0-21swapper/008:25:270
1413279991916,2cyclictest1500404-21systemd08:20:010
1413279991916,2cyclictest1469912-21apt-key07:55:010
1413279991914,4cyclictest1712325-21apt-get11:18:220
1413279991910,2cyclictest1446100-21/usr/sbin/munin07:38:260
1413284991816,1cyclictest0-21swapper/209:40:022
1413284991816,1cyclictest0-21swapper/207:10:022
1413284991815,1cyclictest0-21swapper/210:38:312
1413284991815,1cyclictest0-21swapper/210:30:002
141328399189,4cyclictest1736511-21aten2.4-expect11:38:271
141328399184,7cyclictest1488862-21aten2.4-expect08:13:251
1413283991814,3cyclictest1725704-21kthreadcore11:28:291
1413283991814,3cyclictest1435386-21kthreadcore07:28:291
1413283991810,4cyclictest1543479-21aten2.4-expect08:58:241
1413279991811,6cyclictest1288-1atopacctd10:28:350
141328499174,9cyclictest0-21swapper/207:40:012
1413284991715,1cyclictest0-21swapper/210:10:012
1413284991715,1cyclictest0-21swapper/208:38:302
1413284991715,1cyclictest0-21swapper/207:35:022
1413284991714,1cyclictest0-21swapper/210:50:002
1413284991714,1cyclictest0-21swapper/210:15:022
1413284991711,2cyclictest0-21swapper/210:53:322
141328399175,7cyclictest1562246-21cat09:13:281
141328399173,9cyclictest1512923-21aten_repower_en08:33:231
1413283991715,1cyclictest1796399-21cron12:25:001
1413283991714,2cyclictest1703036-21kthreadcore11:08:301
1413283991714,2cyclictest1428399-21cpuspeed_turbos07:23:261
1413283991714,2cyclictest1413268-21cyclictest07:15:021
1413283991713,3cyclictest1773933-21kthreadcore12:08:301
1413283991713,3cyclictest1717063-21pmu-power11:18:321
1413283991711,5cyclictest1495333-21fschecks_count08:18:261
1413283991711,2cyclictest134050irq/121-eno110:08:281
1413279991714,2cyclictest1781405-21kthreadcore12:13:300
1413279991714,2cyclictest1781405-21kthreadcore12:13:300
1413279991714,2cyclictest1627101-21munin-plugin-st10:05:010
1413279991714,2cyclictest1482160-21unin-run08:05:010
141328499164,8cyclictest0-21swapper/211:30:012
1413284991614,1cyclictest0-21swapper/211:33:182
1413284991614,1cyclictest0-21swapper/210:05:012
1413284991613,1cyclictest0-21swapper/212:10:002
1413284991613,1cyclictest0-21swapper/210:23:242
1413284991613,1cyclictest0-21swapper/210:20:022
1413284991613,1cyclictest0-21swapper/210:00:002
1413284991613,1cyclictest0-21swapper/209:13:262
1413284991613,1cyclictest0-21swapper/208:05:012
1413284991613,1cyclictest0-21swapper/207:18:282
1413284991611,1cyclictest0-21swapper/209:50:012
141328399163,8cyclictest1760615-21aten2.4-expect11:58:231
1413283991613,2cyclictest1707032-21tail11:13:261
1413283991613,2cyclictest1584995-21latency_hist09:30:011
1413283991613,2cyclictest1512411-21latency_hist08:30:011
1413283991613,2cyclictest1444659-21latency07:33:331
1413283991613,2cyclictest1426-21gdbus09:10:021
1413283991613,2cyclictest1327-21in:imuxsock09:33:291
1413283991613,2cyclictest1326-21systemd-logind12:40:021
1413283991613,2cyclictest0-21swapper/110:30:011
1413283991612,3cyclictest1659374-21kthreadcore10:33:281
1413283991611,4cyclictest1722365-21kthreadcore11:23:311
1413283991611,4cyclictest1326-21systemd-logind08:05:011
141328399160,8cyclictest1735871-21cron11:35:001
1413279991613,2cyclictest1801948-21switchtime12:28:350
1413279991613,2cyclictest1790402-21apt-key12:20:010
1413279991613,2cyclictest1705351-21timerandwakeup11:08:340
1413279991613,2cyclictest1687077-21processes10:53:370
1413279991613,2cyclictest1663149-21timerandwakeup10:33:340
1413279991613,2cyclictest1651468-21perf10:25:010
1413279991613,2cyclictest1639280-21apt-config10:15:010
1413279991613,2cyclictest1550453-21grep09:03:290
1413279991613,2cyclictest1457676-21perf07:45:000
1413279991613,2cyclictest1427698-21systemd-run07:20:020
1413279991613,2cyclictest1288-1atopacctd11:50:020
141327999160,14cyclictest1506305-21perf08:25:000
2649091150,2phc2sys0-21swapper/312:28:243
141328499156,5cyclictest0-21swapper/211:03:242
1413284991513,1cyclictest0-21swapper/212:18:292
1413284991513,1cyclictest0-21swapper/211:23:292
1413284991513,1cyclictest0-21swapper/210:45:002
1413284991513,1cyclictest0-21swapper/210:31:462
1413284991513,1cyclictest0-21swapper/209:20:062
1413284991513,1cyclictest0-21swapper/208:10:012
1413284991512,1cyclictest0-21swapper/212:28:252
1413284991512,1cyclictest0-21swapper/211:48:252
1413284991512,1cyclictest0-21swapper/211:45:012
1413284991512,1cyclictest0-21swapper/209:53:302
1413284991512,1cyclictest0-21swapper/209:53:302
1413284991512,1cyclictest0-21swapper/208:43:282
1413284991512,1cyclictest0-21swapper/207:48:232
141328399152,8cyclictest1464455-21aten2.4-expect07:53:231
141328399151,9cyclictest1597601-21aten2.4-expect09:43:221
141328399151,9cyclictest1451696-21cat07:40:011
1413283991512,2cyclictest1787062-21kthreadcore12:18:301
1413283991512,2cyclictest1687433-21unixbench-2d10:53:391
1413283991512,2cyclictest1673874-21kthreadcore10:43:291
1413283991512,2cyclictest1572462-21timerandwakeup09:18:341
1413283991512,2cyclictest1474044-21kthreadcore07:58:311
1413283991512,2cyclictest1326-21systemd-logind08:45:011
1413283991512,2cyclictest1288-1atopacctd11:43:341
1413283991512,2cyclictest0-21swapper/110:05:001
1413283991511,3cyclictest1749604-21grep11:48:291
1413283991511,3cyclictest0-21swapper/110:25:021
141327999158,5cyclictest1418233-21tr07:13:330
141327999154,5cyclictest0-21swapper/008:14:120
141327999154,5cyclictest0-21swapper/007:57:170
1413279991512,2cyclictest1767926-21kthreadcore12:03:290
1413279991512,2cyclictest1724010-21latency_hist11:25:010
1413279991512,2cyclictest1604657-21grep09:48:270
1413279991512,2cyclictest1599153-21kthreadcore09:43:280
1413279991512,2cyclictest1592532-21irqcore09:38:300
1413279991512,2cyclictest1590473-21mailstats09:33:360
1413279991512,2cyclictest1548976-21cut09:00:010
1413279991512,2cyclictest1536464-21latency_hist08:50:030
1413279991512,2cyclictest1413268-21cyclictest10:43:250
1413279991512,2cyclictest1326-21systemd-logind09:30:010
1413279991512,2cyclictest1290-21dbus-daemon07:10:020
2649091144,2phc2sys0-21swapper/310:03:293
1413284991412,1cyclictest0-21swapper/211:35:302
1413284991412,1cyclictest0-21swapper/211:15:022
1413284991412,1cyclictest0-21swapper/209:10:002
1413284991412,1cyclictest0-21swapper/209:03:452
1413284991412,1cyclictest0-21swapper/208:58:322
1413284991412,1cyclictest0-21swapper/207:15:022
1413284991411,1cyclictest0-21swapper/212:13:262
1413284991411,1cyclictest0-21swapper/212:13:262
1413284991411,1cyclictest0-21swapper/211:53:242
1413284991411,1cyclictest0-21swapper/210:58:262
1413284991411,1cyclictest0-21swapper/209:43:292
1413284991411,1cyclictest0-21swapper/209:33:362
1413284991411,1cyclictest0-21swapper/209:18:272
1413284991411,1cyclictest0-21swapper/208:48:272
1413284991411,1cyclictest0-21swapper/207:53:222
1413284991411,1cyclictest0-21swapper/207:43:262
141328399148,1cyclictest134050irq/121-eno110:38:241
141328399147,5cyclictest1290-21dbus-daemon11:00:011
141328399147,1cyclictest134050irq/121-eno107:48:241
141328399144,6cyclictest341rcuc/110:13:291
141328399142,7cyclictest1694349-21aten2.4-expect11:03:241
141328399142,7cyclictest1615710-21aten2.4-expect09:58:251
141328399142,7cyclictest0-21swapper/108:23:021
141328399141,8cyclictest2016-21snmpd12:12:471
141328399141,8cyclictest2016-21snmpd12:12:471
141328399141,8cyclictest1596916-21cat09:39:561
141328399141,6cyclictest1797026-21tail12:28:241
1413283991411,2cyclictest1606743-21kthreadcore09:48:291
1413283991411,2cyclictest1422743-21gltestperf07:18:251
1413283991411,2cyclictest1290-21dbus-daemon08:10:001
1413283991410,3cyclictest1766639-21aten_repower_cu12:03:231
141328399140,9cyclictest1677488-21kthreadcore10:48:291
141327999148,4cyclictest1740198-21tr11:38:340
141327999147,3cyclictest1439574-21grep07:30:000
1413279991411,2cyclictest257-21systemd-journal11:01:280
1413279991411,2cyclictest1813934-21mailstats12:38:350
1413279991411,2cyclictest1808564-21latency_hist12:35:010
1413279991411,2cyclictest1793612-21kthreadcore12:23:280
1413279991411,2cyclictest1724375-21/usr/sbin/munin11:28:330
1413279991411,2cyclictest1615625-21aten_repower_en09:58:240
1413279991411,2cyclictest1568703-21kthreadcore09:18:290
1413279991411,2cyclictest1494463-21kworker/u16:2-events_power_efficient12:10:010
1413279991411,2cyclictest1442872-21kthreadcore07:33:320
1413279991411,2cyclictest1430824-21kthreadcore07:23:320
1413279991411,2cyclictest1413268-21cyclictest10:08:310
1413279991411,2cyclictest1413268-21cyclictest09:53:270
1413279991411,2cyclictest1413268-21cyclictest09:53:270
1413279991411,2cyclictest1326-21systemd-logind09:10:010
2649091130,2phc2sys0-21swapper/307:13:253
1413284991311,1cyclictest0-21swapper/212:03:272
1413284991311,1cyclictest0-21swapper/211:58:282
1413284991311,1cyclictest0-21swapper/211:18:332
1413284991311,1cyclictest0-21swapper/209:27:192
1413284991311,1cyclictest0-21swapper/207:25:012
1413284991310,1cyclictest0-21swapper/212:38:302
1413284991310,1cyclictest0-21swapper/212:23:212
1413284991310,1cyclictest0-21swapper/211:08:242
1413284991310,1cyclictest0-21swapper/208:33:252
141328399131,7cyclictest1639958-21/usr/sbin/munin10:18:261
141328399131,7cyclictest1549365-21apt-get09:03:241
141328399131,7cyclictest1452218-21apt-get07:43:221
141328399131,3cyclictest0-21swapper/108:38:291
141328399130,3cyclictest1537366-21aten2.4-expect08:53:251
141327999138,4cyclictest0-21swapper/008:53:280
141327999136,1cyclictest0-21swapper/011:43:240
1413279991311,1cyclictest29021-21rtkit-daemon10:58:030
1413279991310,2cyclictest1710912-21missed_timers11:13:310
1413279991310,2cyclictest1679926-21kthreadcore10:48:300
1413279991310,2cyclictest1669001-21rt-features10:38:330
1413279991310,2cyclictest1562038-21gltestperf09:13:270
1413279991310,2cyclictest1527646-21kthreadcore08:43:310
1413279991310,2cyclictest1513927-21irqcore08:33:280
1413279991310,2cyclictest0-21swapper/011:53:350
2649091120,3phc2sys0-21swapper/312:03:353
2649091120,2phc2sys0-21swapper/312:20:013
2649091120,2phc2sys0-21swapper/311:55:023
2649091120,2phc2sys0-21swapper/309:37:033
2649091120,2phc2sys0-21swapper/308:52:473
2649091120,1phc2sys0-21swapper/310:34:553
2649091120,1phc2sys0-21swapper/308:29:443
1413284991210,1cyclictest0-21swapper/208:53:252
1413284991210,1cyclictest0-21swapper/208:13:302
1413284991210,1cyclictest0-21swapper/207:58:312
141328399125,2cyclictest17350irq/127-ahci[0000:00:17.0]07:10:021
141328399121,3cyclictest1754525-21apt-get11:53:231
141327999129,2cyclictest257-21systemd-journal11:31:280
141327999129,2cyclictest1761557-21irqcore11:58:280
141327999129,2cyclictest1642727-21kthreadcore10:18:300
141327999121,2cyclictest1482668-21/usr/sbin/munin08:08:260
2649091111,1phc2sys0-21swapper/311:19:273
2649091111,1phc2sys0-21swapper/308:08:083
2649091110,6phc2sys0-21swapper/310:14:563
2649091110,2phc2sys0-21swapper/312:33:243
2649091110,2phc2sys0-21swapper/312:15:013
2649091110,2phc2sys0-21swapper/312:15:013
2649091110,2phc2sys0-21swapper/311:03:243
2649091110,2phc2sys0-21swapper/310:23:243
2649091110,1phc2sys0-21swapper/307:15:183
141328499119,1cyclictest0-21swapper/208:25:552
2649091106,1phc2sys0-21swapper/309:57:033
2649091101,2phc2sys0-21swapper/311:23:323
2649091101,2phc2sys0-21swapper/309:53:233
2649091101,2phc2sys0-21swapper/309:53:233
2649091101,2phc2sys0-21swapper/309:45:013
2649091100,2phc2sys0-21swapper/312:24:543
2649091100,2phc2sys0-21swapper/308:37:563
2649091100,2phc2sys0-21swapper/308:15:013
2649091100,1phc2sys0-21swapper/311:58:183
2649091100,1phc2sys0-21swapper/311:27:133
2649091100,1phc2sys0-21swapper/310:45:323
2649091100,1phc2sys0-21swapper/310:08:133
2649091100,1phc2sys0-21swapper/307:32:453
264909191,3phc2sys0-21swapper/309:48:213
264909191,3phc2sys0-21swapper/308:47:463
264909191,2phc2sys0-21swapper/312:08:243
264909191,2phc2sys0-21swapper/311:33:263
264909191,2phc2sys0-21swapper/309:29:563
264909191,2phc2sys0-21swapper/308:58:253
264909191,2phc2sys0-21swapper/308:43:343
264909191,2phc2sys0-21swapper/308:03:273
264909191,1phc2sys0-21swapper/311:08:253
264909190,6phc2sys1475985-21chrt07:59:293
264909190,2phc2sys0-21swapper/312:40:023
264909190,2phc2sys0-21swapper/311:43:323
264909190,2phc2sys0-21swapper/310:52:533
264909190,2phc2sys0-21swapper/310:38:273
264909190,2phc2sys0-21swapper/310:15:353
264909190,2phc2sys0-21swapper/309:23:303
264909190,2phc2sys0-21swapper/309:20:013
264909190,2phc2sys0-21swapper/309:13:323
264909190,2phc2sys0-21swapper/308:24:563
264909190,2phc2sys0-21swapper/308:18:303
264909190,2phc2sys0-21swapper/307:55:023
264909190,2phc2sys0-21swapper/307:43:283
264909190,2phc2sys0-21swapper/307:38:313
264909190,1phc2sys0-21swapper/311:13:063
264909181,2phc2sys0-21swapper/311:37:263
264909181,2phc2sys0-21swapper/307:45:243
264909181,2phc2sys0-21swapper/307:25:073
264909181,1phc2sys0-21swapper/309:08:313
264909181,1phc2sys0-21swapper/307:22:313
264909180,2phc2sys0-21swapper/311:48:283
264909180,2phc2sys0-21swapper/310:30:013
264909180,2phc2sys0-21swapper/309:31:063
264909180,2phc2sys0-21swapper/309:03:263
264909180,2phc2sys0-21swapper/308:33:293
264909180,1phc2sys0-21swapper/310:58:223
264909180,1phc2sys0-21swapper/310:43:363
264909180,1phc2sys0-21swapper/307:08:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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