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2026-06-07 - 15:02
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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 Sun Jun 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179745521970,2sleep30-21swapper/309:00:343
20197292710,2sleep30-21swapper/311:35:323
18408262680,1sleep11840825-21ssh09:31:101
1656970993222,6cyclictest2026085-21systemd-run11:40:030
165697099238,6cyclictest0-21swapper/009:55:330
1656970992320,2cyclictest1908385-21dump-pmu-power10:20:000
1656970992213,5cyclictest1246-21mta-sts-daemon12:12:510
1656970992212,9cyclictest1837986-21kthreadcore09:30:340
1656970992211,6cyclictest0-21swapper/009:30:010
3153791216,1phc2sys0-21swapper/311:45:013
1656971992118,2cyclictest660-21dbus-daemon09:20:011
1656971992118,2cyclictest2063096-21/usr/sbin/munin12:05:031
1656970992110,7cyclictest0-21swapper/010:05:370
492398200,3rtkit-daemon1247-21mta-sts-daemon11:05:410
1656971992017,2cyclictest1663249-21df07:15:021
1656970992015,4cyclictest1761728-21pmu-power08:30:360
1656970992011,5cyclictest1246-21mta-sts-daemon12:40:030
1656970992010,5cyclictest0-21swapper/011:30:010
492398190,3rtkit-daemon675-21mta-sts-daemon10:50:310
492398190,3rtkit-daemon1237-21mta-sts-daemon08:28:370
3153791191,6phc2sys0-21swapper/312:10:013
1656972991917,1cyclictest0-21swapper/210:00:002
1656972991917,1cyclictest0-21swapper/208:30:012
1656972991916,1cyclictest0-21swapper/211:10:332
165697099199,5cyclictest1780811-21turbostat08:50:010
1656970991916,2cyclictest660-21dbus-daemon08:20:010
1656970991916,2cyclictest660-21dbus-daemon07:15:020
1656970991916,2cyclictest1952300-21systemd10:50:010
1656970991910,5cyclictest1857531-21aten2.4-expect09:45:270
492398180,2rtkit-daemon1929856-21ssh10:33:320
492398180,2rtkit-daemon0-21swapper/010:12:020
3153791180,1phc2sys0-21swapper/310:39:553
1656972991815,1cyclictest0-21swapper/211:45:012
1656972991813,3cyclictest1683446-21turbostat07:30:012
165697199187,9cyclictest274-21systemd-journal09:15:011
1656971991815,2cyclictest1799010-21cron09:05:011
1656971991815,2cyclictest1684347-21fschecks_count07:30:291
1656971991815,2cyclictest0-21swapper/111:45:011
1656971991812,2cyclictest67250irq/126-eno108:10:331
165697099189,2cyclictest0-21swapper/012:23:020
165697099187,6cyclictest0-21swapper/009:15:280
165697099187,4cyclictest1685094-21kthreadcore07:30:330
1656970991815,2cyclictest660-21dbus-daemon11:40:370
1656970991815,2cyclictest1850449-21cstates09:40:270
1656970991815,2cyclictest0-21swapper/009:55:010
1656970991812,5cyclictest1919631-21kthreadcore10:25:340
31537911711,2phc2sys0-21swapper/308:10:013
3153791170,5phc2sys0-21swapper/310:00:273
3153791170,3phc2sys0-21swapper/312:30:163
3153791170,2phc2sys0-21swapper/311:10:243
1656972991715,1cyclictest0-21swapper/210:45:022
1656972991715,1cyclictest0-21swapper/207:25:022
165697199178,4cyclictest0-21swapper/111:55:011
1656971991715,1cyclictest0-21swapper/111:00:011
1656971991715,1cyclictest0-21swapper/108:30:011
1656971991714,2cyclictest693-21systemd-logind08:10:001
1656971991714,2cyclictest2055340-21munin-run12:00:011
1656971991714,2cyclictest1943452-21diskmemload10:40:391
1656971991714,2cyclictest0-21swapper/110:25:011
165697099178,5cyclictest1996630-21/usr/sbin/munin11:20:330
165697099178,2cyclictest0-21swapper/012:00:340
1656970991714,2cyclictest660-21dbus-daemon11:35:010
1656970991714,2cyclictest1965127-21mailstats10:55:380
1656970991714,2cyclictest1821061-21cut09:20:280
1656970991714,2cyclictest1738016-21cron08:15:000
1656970991714,2cyclictest0-21swapper/009:10:010
3153791160,1phc2sys0-21swapper/310:28:043
1656972991614,1cyclictest0-21swapper/212:35:012
1656972991614,1cyclictest0-21swapper/212:01:512
1656972991614,1cyclictest0-21swapper/209:00:022
1656972991614,1cyclictest0-21swapper/208:15:322
1656972991614,1cyclictest0-21swapper/207:40:352
1656972991613,1cyclictest0-21swapper/212:35:332
1656972991613,1cyclictest0-21swapper/212:25:322
1656972991613,1cyclictest0-21swapper/209:30:012
1656972991613,1cyclictest0-21swapper/209:21:272
1656972991613,1cyclictest0-21swapper/207:50:402
1656971991614,1cyclictest2010960-21latency_hist11:30:011
1656971991613,2cyclictest2090408-21mailstats12:20:371
1656971991613,2cyclictest1-21systemd11:35:011
1656971991613,2cyclictest1-21systemd08:40:011
1656971991612,2cyclictest0-21swapper/108:05:011
1656971991610,2cyclictest1982636-21ssh11:10:311
165697199160,12cyclictest2092525-21ssh12:25:031
165697099168,7cyclictest1242-21mta-sts-daemon11:46:150
165697099168,6cyclictest0-21swapper/009:40:030
165697099166,6cyclictest0-21swapper/011:15:320
1656970991613,2cyclictest1656968-21cyclictest08:00:380
1656970991613,2cyclictest0-21swapper/011:55:020
3153791150,3phc2sys0-21swapper/309:17:463
3153791150,2phc2sys0-21swapper/309:11:103
3153791150,1phc2sys0-21swapper/309:44:233
1656972991513,1cyclictest0-21swapper/209:50:012
1656972991513,1cyclictest0-21swapper/208:50:022
1656972991513,1cyclictest0-21swapper/208:40:332
1656972991513,1cyclictest0-21swapper/208:40:022
1656972991513,1cyclictest0-21swapper/208:05:022
1656972991513,1cyclictest0-21swapper/207:45:292
1656972991513,0cyclictest0-21swapper/210:50:012
1656972991512,1cyclictest0-21swapper/212:20:022
1656972991512,1cyclictest0-21swapper/208:00:022
1656972991512,1cyclictest0-21swapper/208:00:022
165697199159,4cyclictest660-21dbus-daemon12:15:021
165697199157,2cyclictest1246-21mta-sts-daemon09:38:151
1656971991512,2cyclictest765-1atopacctd08:20:001
1656971991512,2cyclictest698-21in:imuxsock07:25:111
1656971991512,2cyclictest2024064-21tail11:35:401
1656971991512,2cyclictest1979765-21sendmail_mailtr11:05:401
1656971991512,2cyclictest1864381-21/usr/sbin/munin09:50:001
1656971991512,2cyclictest1828709-21irqcore09:25:301
1656971991512,2cyclictest1671446-21latency_hist07:20:021
1656971991512,2cyclictest1242-21mta-sts-daemon10:00:331
1656971991512,2cyclictest0-21swapper/108:55:011
1656971991511,3cyclictest1789458-21kthreadcore08:55:331
1656971991511,3cyclictest1246-21mta-sts-daemon10:33:571
1656971991510,2cyclictest1237-21mta-sts-daemon07:45:361
165697099159,5cyclictest1237-21mta-sts-daemon11:12:490
165697099158,5cyclictest1-21systemd08:10:010
1656970991512,2cyclictest660-21dbus-daemon08:00:020
1656970991512,2cyclictest660-21dbus-daemon08:00:020
1656970991512,2cyclictest2107031-21systemd-run12:35:010
1656970991512,2cyclictest2067971-21kthreadcore12:05:360
1656970991511,3cyclictest765-1atopacctd07:45:010
1656970991511,3cyclictest1656968-21cyclictest08:20:350
1656970991510,4cyclictest1247-21mta-sts-daemon11:56:250
1656970991510,2cyclictest1246-21mta-sts-daemon10:00:190
3153791140,3phc2sys0-21swapper/309:37:213
3153791140,2phc2sys0-21swapper/311:31:143
3153791140,2phc2sys0-21swapper/311:24:143
3153791140,1phc2sys0-21swapper/310:32:283
3153791140,1phc2sys0-21swapper/310:12:043
3153791140,1phc2sys0-21swapper/309:32:293
1656972991412,1cyclictest0-21swapper/211:51:582
1656972991412,1cyclictest0-21swapper/210:20:012
1656972991412,1cyclictest0-21swapper/209:19:022
1656972991412,1cyclictest0-21swapper/208:10:012
1656972991411,1cyclictest0-21swapper/212:10:302
1656972991411,1cyclictest0-21swapper/211:55:322
1656972991411,1cyclictest0-21swapper/211:30:322
1656972991411,1cyclictest0-21swapper/211:20:012
1656972991411,1cyclictest0-21swapper/210:35:012
1656972991411,1cyclictest0-21swapper/210:05:252
1656972991411,1cyclictest0-21swapper/209:50:272
1656972991411,1cyclictest0-21swapper/208:20:512
165697199147,5cyclictest274-21systemd-journal09:10:011
1656971991412,1cyclictest1237-21mta-sts-daemon09:40:211
1656971991411,2cyclictest2108756-21kthreadcore12:35:331
1656971991411,2cyclictest2080977-21kthreadcore12:15:351
1656971991411,2cyclictest1994110-21head11:15:371
1656971991411,2cyclictest1967621-21cpuspeed11:00:271
1656971991411,2cyclictest1950482-21mailstats10:45:391
1656971991411,2cyclictest1876313-21kthreadcore09:55:341
1656971991411,2cyclictest1865630-21if_enp1s0.809:50:311
1656971991411,2cyclictest1758171-21kthreadcore08:30:321
1656971991411,2cyclictest1720094-21sh08:00:021
1656971991411,2cyclictest1720094-21sh08:00:021
1656971991411,2cyclictest1677498-21latency_hist07:25:021
1656971991411,2cyclictest1656968-21cyclictest07:50:281
1656971991411,2cyclictest0-21swapper/112:35:021
1656971991411,2cyclictest0-21swapper/112:05:031
1656971991411,2cyclictest0-21swapper/111:50:011
1656971991411,2cyclictest0-21swapper/110:20:011
1656971991410,3cyclictest1936189-21unixbench_multi10:35:411
1656971991410,3cyclictest1897683-21kthreadcore10:10:321
1656971991410,3cyclictest1891281-21kthreadcore10:05:351
165697199140,9cyclictest1923307-21latency_hist10:30:031
165697199140,12cyclictest1780817-21basename08:50:011
165697099149,4cyclictest4922-21rtkit-daemon07:35:040
165697099146,1cyclictest0-21swapper/010:20:270
165697099143,7cyclictest1939102-21irqcore10:40:320
165697099143,6cyclictest1786442-21unixbench_singl08:50:410
1656970991412,1cyclictest1974341-21latency_hist11:05:020
1656970991411,2cyclictest1935608-21missed_timers10:35:360
1656970991411,2cyclictest1713984-21latency_hist07:55:020
1656970991411,2cyclictest1683580-21munin-plugin-st07:30:020
1656970991411,2cyclictest1671923-21cpuspeed_turbos07:20:280
1656970991410,3cyclictest1759552-21kworker/u16:2+nfsiod09:13:270
165697099140,9cyclictest2077965-21/usr/sbin/munin12:15:270
165697099140,13cyclictest0-21swapper/009:00:260
165697099140,0cyclictest2094495-21ssh12:25:330
3153791130,3phc2sys0-21swapper/308:45:213
3153791130,2phc2sys0-21swapper/312:38:433
3153791130,2phc2sys0-21swapper/309:24:163
3153791130,1phc2sys0-21swapper/307:37:523
1656972991311,1cyclictest0-21swapper/211:48:232
1656972991311,1cyclictest0-21swapper/211:36:162
1656972991311,1cyclictest0-21swapper/211:05:352
1656972991311,1cyclictest0-21swapper/211:00:392
1656972991311,1cyclictest0-21swapper/210:55:332
1656972991311,1cyclictest0-21swapper/210:50:412
1656972991311,1cyclictest0-21swapper/210:40:012
1656972991311,1cyclictest0-21swapper/210:25:272
1656972991311,1cyclictest0-21swapper/210:21:142
1656972991311,1cyclictest0-21swapper/210:10:322
1656972991311,1cyclictest0-21swapper/209:30:342
1656972991311,1cyclictest0-21swapper/208:10:332
1656972991311,1cyclictest0-21swapper/207:10:352
1656972991310,1cyclictest0-21swapper/211:25:232
1656972991310,1cyclictest0-21swapper/210:01:272
1656972991310,1cyclictest0-21swapper/209:35:412
1656972991310,1cyclictest0-21swapper/208:30:322
1656971991310,2cyclictest1697263-21kernelversion07:40:331
1656971991310,2cyclictest1691172-21kthreadcore07:35:341
1656971991310,2cyclictest1247-21mta-sts-daemon11:20:161
1656971991310,2cyclictest1247-21mta-sts-daemon10:52:261
165697099135,3cyclictest1702575-21df_inode07:45:290
165697099131,7cyclictest1774375-21users08:40:400
1656970991310,2cyclictest1763647-21gltestperf08:35:300
1656970991310,2cyclictest1666673-21irqrtprio07:15:330
3153791124,2phc2sys0-21swapper/308:55:023
3153791120,2phc2sys0-21swapper/310:24:193
3153791120,2phc2sys0-21swapper/309:57:183
3153791120,1phc2sys0-21swapper/312:23:033
3153791120,1phc2sys0-21swapper/310:48:413
3153791120,1phc2sys0-21swapper/307:56:043
3153791120,1phc2sys0-21swapper/307:56:043
3153791120,1phc2sys0-21swapper/307:44:103
165697299129,1cyclictest0-21swapper/209:05:312
1656972991210,1cyclictest0-21swapper/212:20:312
1656972991210,1cyclictest0-21swapper/212:05:352
1656972991210,1cyclictest0-21swapper/211:20:402
1656972991210,1cyclictest0-21swapper/209:10:312
1656972991210,1cyclictest0-21swapper/209:00:262
1656972991210,1cyclictest0-21swapper/208:50:352
1656972991210,1cyclictest0-21swapper/207:35:262
1656972991210,1cyclictest0-21swapper/207:15:032
165697199129,2cyclictest1657019-21latency_hist07:10:011
165697199128,3cyclictest1821581-21irqrtprio09:20:301
1656971991210,1cyclictest1769096-21head08:40:261
165697199120,11cyclictest0-21swapper/108:20:271
165697099120,8cyclictest1788679-21kthreadcore08:55:330
165697099120,6cyclictest1657028-21systemd-run07:10:020
3153791112,1phc2sys0-21swapper/311:48:283
3153791110,2phc2sys0-21swapper/307:52:233
3153791110,1phc2sys0-21swapper/311:17:023
3153791110,1phc2sys0-21swapper/311:01:313
3153791110,1phc2sys0-21swapper/310:53:583
3153791110,1phc2sys0-21swapper/309:25:093
3153791110,1phc2sys0-21swapper/308:27:143
19027582110,2sleep30-21swapper/310:15:323
165697299119,1cyclictest0-21swapper/209:40:322
165697299119,1cyclictest0-21swapper/207:30:292
3153791101,2phc2sys0-21swapper/312:15:013
3153791100,2phc2sys0-21swapper/308:55:263
3153791100,2phc2sys0-21swapper/308:25:013
3153791100,2phc2sys0-21swapper/308:00:333
3153791100,2phc2sys0-21swapper/307:46:413
3153791100,2phc2sys0-21swapper/307:20:253
3153791100,1phc2sys0-21swapper/310:44:323
3153791100,1phc2sys0-21swapper/307:31:383
315379193,2phc2sys0-21swapper/307:25:333
315379191,3phc2sys0-21swapper/308:35:263
315379191,2phc2sys0-21swapper/311:55:463
315379191,2phc2sys0-21swapper/308:30:383
315379190,3phc2sys0-21swapper/307:15:273
315379190,2phc2sys0-21swapper/312:15:533
315379190,2phc2sys0-21swapper/312:00:263
315379190,2phc2sys0-21swapper/311:50:333
315379190,2phc2sys0-21swapper/311:05:203
315379190,2phc2sys0-21swapper/310:55:063
315379190,2phc2sys0-21swapper/309:45:403
315379190,2phc2sys0-21swapper/307:10:273
315379190,2phc2sys0-21swapper/307:05:263
315379190,1phc2sys0-21swapper/310:05:123
315379190,1phc2sys0-21swapper/309:51:093
315379190,1phc2sys0-21swapper/308:40:123
315379190,1phc2sys0-21swapper/308:15:403
315379180,2phc2sys0-21swapper/312:25:113
315379180,2phc2sys0-21swapper/311:25:163
315379180,2phc2sys0-21swapper/309:05:363
315379180,1phc2sys0-21swapper/308:10:273
16569729986,1cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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