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2026-07-11 - 12:22
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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 Sat Jul 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136082621070,2sleep30-21swapper/320:15:013
16812732690,1sleep11681272-21ssh00:02:351
15838442460,2sleep11583829-21ssh22:55:021
15182162290,2sleep20-21swapper/222:13:472
1279448992717,6cyclictest0-21swapper/022:30:010
3153791251,11phc2sys0-21swapper/320:10:013
14187672230,2sleep30-21swapper/321:04:423
1279449992219,2cyclictest0-21swapper/100:34:391
1279448992213,5cyclictest1580980-21kthreadcore22:54:430
1279448992211,6cyclictest0-21swapper/023:14:450
1279450992118,1cyclictest0-21swapper/200:10:012
127944899211,18cyclictest0-21swapper/021:54:400
1279448992111,5cyclictest0-21swapper/023:50:010
1279448992110,6cyclictest0-21swapper/022:45:010
1279448992110,6cyclictest0-21swapper/022:35:480
1279450992017,1cyclictest0-21swapper/220:15:012
1279450992016,2cyclictest0-21swapper/221:25:012
1279449992017,2cyclictest1-21systemd20:50:011
1279449992017,2cyclictest0-21swapper/122:20:021
1279449992014,5cyclictest1724488-21latency_hist00:30:021
1279449992013,1cyclictest492398rtkit-daemon22:25:581
1279449992012,3cyclictest0-21swapper/119:40:011
3153791190,2phc2sys0-21swapper/322:56:543
1279450991917,1cyclictest0-21swapper/223:10:012
1279449991916,2cyclictest1568169-21mailstats22:44:471
1279449991916,2cyclictest1410016-21sh20:55:011
1279449991913,2cyclictest67250irq/126-eno122:24:491
127944899199,5cyclictest0-21swapper/022:24:330
3153791180,2phc2sys0-21swapper/322:01:513
3153791180,2phc2sys0-21swapper/319:54:353
13186092180,3sleep30-21swapper/319:40:023
1279450991814,1cyclictest0-21swapper/223:59:012
1279449991815,2cyclictest1336557-21debian-sa119:55:011
1279449991811,6cyclictest1246-21mta-sts-daemon21:04:471
1279449991811,3cyclictest67250irq/126-eno123:44:421
127944899187,6cyclictest0-21swapper/021:14:440
127944899185,6cyclictest1479381-21cat21:44:470
1279448991815,2cyclictest1428208-21latency_hist21:10:010
1279448991815,2cyclictest1294015-21cut19:20:020
1279448991815,2cyclictest1247-21mta-sts-daemon20:55:010
1279448991815,2cyclictest0-21swapper/023:30:020
1279448991813,3cyclictest0-21swapper/020:20:010
1279448991810,4cyclictest1593066-21tail23:04:360
3153791170,2phc2sys0-21swapper/321:55:183
3153791170,2phc2sys0-21swapper/321:55:183
3153791170,2phc2sys0-21swapper/321:11:513
1279450991714,1cyclictest0-21swapper/221:59:392
1279450991714,1cyclictest0-21swapper/221:59:392
1279450991714,1cyclictest0-21swapper/221:39:462
1279450991714,1cyclictest0-21swapper/200:24:472
127944999179,3cyclictest1116436-21kworker/u16:1+writeback21:35:011
127944999179,3cyclictest0-21swapper/122:05:011
127944999175,5cyclictest0-21swapper/119:14:421
1279449991714,2cyclictest671-21polkitd19:19:481
1279449991714,2cyclictest658-21avahi-daemon19:45:021
1279449991714,2cyclictest1474856-21grep21:44:371
1279449991714,2cyclictest1391454-21munin-plugin-st20:40:001
1279449991714,2cyclictest0-21swapper/100:25:021
1279449991713,3cyclictest1456524-21kthreadcore21:29:461
127944999170,3cyclictest1429337-21ssh21:12:551
127944899179,5cyclictest1237-21mta-sts-daemon00:14:580
127944899179,4cyclictest1428078-21diskmemload21:15:530
127944899177,6cyclictest0-21swapper/022:19:430
127944899177,5cyclictest0-21swapper/021:49:410
127944899176,6cyclictest0-21swapper/023:44:410
1279448991714,2cyclictest660-21dbus-daemon22:10:010
1279448991714,2cyclictest4922-21rtkit-daemon23:57:370
1279448991714,2cyclictest1739535-21systemd-run00:40:030
1279448991714,2cyclictest1669250-21kthreadcore23:54:420
1279448991714,2cyclictest1591110-21ls23:00:010
1279448991714,2cyclictest1571497-21sort22:49:410
1279448991714,2cyclictest1471865-21mailstats21:39:460
1279448991714,2cyclictest1349715-21cpuspeed_turbos20:09:410
1279448991714,2cyclictest0-21swapper/022:05:020
1279448991714,2cyclictest0-21swapper/020:15:010
1279448991710,6cyclictest0-21swapper/000:05:020
3153791161,4phc2sys0-21swapper/320:34:343
3153791161,3phc2sys0-21swapper/321:19:343
3153791160,4phc2sys0-21swapper/323:51:243
3153791160,3phc2sys0-21swapper/322:44:433
3153791160,2phc2sys0-21swapper/300:05:483
1279450991614,1cyclictest0-21swapper/221:45:012
1279450991614,1cyclictest0-21swapper/219:40:022
1279450991613,1cyclictest0-21swapper/223:45:012
1279450991613,1cyclictest0-21swapper/222:15:172
1279450991613,1cyclictest0-21swapper/221:49:352
1279450991613,1cyclictest0-21swapper/220:55:012
127945099161,2cyclictest0-21swapper/222:24:322
1279450991612,2cyclictest0-21swapper/223:38:312
1279450991612,2cyclictest0-21swapper/220:24:462
127944999169,6cyclictest1242-21mta-sts-daemon22:40:001
127944999169,3cyclictest1704260-21tail00:19:361
127944999168,3cyclictest1279446-21cyclictest23:05:311
127944999167,4cyclictest0-21swapper/123:29:411
127944999167,3cyclictest501rcuop/223:39:051
1279449991614,1cyclictest1020-21runrttasks00:35:361
1279449991614,1cyclictest0-21swapper/120:15:031
1279449991613,2cyclictest1-21systemd23:05:021
1279449991612,3cyclictest1575376-21kworker/u16:3+nfsiod23:14:091
1279449991612,3cyclictest1547198-21kworker/u16:1+nfsiod23:30:241
1279449991612,3cyclictest1348930-21kworker/u16:2+nfsiod21:17:521
1279449991610,2cyclictest67250irq/126-eno121:59:351
1279449991610,2cyclictest67250irq/126-eno121:59:351
127944899169,6cyclictest0-21swapper/023:30:380
127944899168,3cyclictest1428078-21diskmemload23:18:430
127944899167,5cyclictest0-21swapper/022:34:570
127944899166,5cyclictest0-21swapper/000:06:270
127944899161,4cyclictest171ktimers/020:21:310
1279448991614,1cyclictest1242-21mta-sts-daemon00:24:350
1279448991613,2cyclictest658-21avahi-daemon21:04:460
1279448991613,2cyclictest1415960-21plymouth21:00:000
1279448991613,2cyclictest1337956-21gltestperf19:59:390
1279448991613,2cyclictest1331467-21cpuspeed_turbos19:54:370
1279448991612,3cyclictest1279446-21cyclictest23:24:400
1279448991610,2cyclictest491rcuog/200:31:080
127944899160,5cyclictest1703340-21ssh00:17:090
3153791157,3phc2sys0-21swapper/319:35:013
3153791151,2phc2sys0-21swapper/300:13:213
3153791150,2phc2sys0-21swapper/321:46:233
3153791150,2phc2sys0-21swapper/321:44:413
3153791150,2phc2sys0-21swapper/320:54:093
3153791150,2phc2sys0-21swapper/320:44:463
3153791150,2phc2sys0-21swapper/320:44:463
3153791150,1phc2sys0-21swapper/323:47:143
127945099151,5cyclictest0-21swapper/219:20:012
1279450991513,1cyclictest0-21swapper/223:30:022
1279450991512,1cyclictest0-21swapper/223:35:022
1279450991512,1cyclictest0-21swapper/223:18:462
1279450991512,1cyclictest0-21swapper/222:06:482
1279450991512,1cyclictest0-21swapper/222:05:012
1279450991512,1cyclictest0-21swapper/221:54:422
1279450991512,1cyclictest0-21swapper/221:17:102
1279450991512,1cyclictest0-21swapper/221:10:002
1279450991512,1cyclictest0-21swapper/220:50:012
1279450991512,1cyclictest0-21swapper/220:19:392
1279450991511,2cyclictest0-21swapper/223:04:422
1279450991511,2cyclictest0-21swapper/222:55:512
1279450991511,2cyclictest0-21swapper/222:32:422
1279450991511,2cyclictest0-21swapper/219:59:432
1279450991511,2cyclictest0-21swapper/200:33:172
127944999158,4cyclictest1247-21mta-sts-daemon23:54:221
127944999158,3cyclictest1689533-21tail00:09:341
127944999156,3cyclictest501rcuop/222:30:471
127944999153,7cyclictest1343324-21aten2.4-expect20:04:361
127944999151,9cyclictest1516937-21latency_hist22:10:021
1279449991512,2cyclictest765-1atopacctd21:24:401
1279449991512,2cyclictest1523787-21timerwakeupswit22:14:491
1279449991512,2cyclictest1425482-21kthreadcore21:09:431
1279449991512,2cyclictest1330594-21latency_hist19:50:011
1279449991512,2cyclictest0-21swapper/123:20:021
1279449991511,3cyclictest1573357-21kthreadcore22:49:441
1279449991511,3cyclictest1382076-21kthreadcore20:34:421
1279449991511,3cyclictest1371329-21kthreadcore20:24:431
1279449991511,3cyclictest1341522-21kthreadcore19:59:431
1279449991511,3cyclictest1116436-21kworker/u16:1+nfsiod21:47:321
1279449991510,4cyclictest1-21systemd20:10:021
1279449991510,2cyclictest1246-21mta-sts-daemon23:46:451
1279449991510,2cyclictest1242-21mta-sts-daemon23:56:571
127944999150,4cyclictest1627286-21ssh23:24:431
127944899159,5cyclictest1246-21mta-sts-daemon22:11:250
127944899157,2cyclictest0-21swapper/000:26:510
127944899154,6cyclictest0-21swapper/021:25:480
1279448991513,1cyclictest1246-21mta-sts-daemon19:35:460
1279448991513,1cyclictest1020-21runrttasks23:07:110
1279448991513,1cyclictest1020-21runrttasks21:20:410
1279448991512,2cyclictest1399121-21irqcore20:49:390
1279448991512,2cyclictest1397490-21cron20:45:000
1279448991512,2cyclictest1397490-21cron20:45:000
1279448991512,2cyclictest1379334-21awk20:30:010
1279448991512,2cyclictest1326036-21irqcore19:49:400
1279448991512,2cyclictest1324700-21systemd-run19:45:020
1279448991512,2cyclictest1285802-21kthreadcore19:15:020
1279448991512,2cyclictest1237-21mta-sts-daemon20:04:480
1279448991511,3cyclictest1307236-21fschecks_time19:34:390
3153791143,2phc2sys0-21swapper/323:29:363
3153791140,2phc2sys0-21swapper/323:36:393
3153791140,2phc2sys0-21swapper/323:17:183
3153791140,2phc2sys0-21swapper/322:39:023
3153791140,2phc2sys0-21swapper/322:06:443
3153791140,2phc2sys0-21swapper/300:22:453
127945099146,2cyclictest0-21swapper/219:44:372
127945099141,4cyclictest0-21swapper/222:39:352
1279450991412,1cyclictest0-21swapper/223:13:332
1279450991412,1cyclictest0-21swapper/222:50:032
1279450991412,1cyclictest0-21swapper/222:27:152
1279450991412,1cyclictest0-21swapper/220:04:392
1279450991411,1cyclictest0-21swapper/223:25:012
1279450991411,1cyclictest0-21swapper/221:25:462
1279450991411,1cyclictest0-21swapper/221:12:342
1279450991411,1cyclictest0-21swapper/220:39:482
1279450991411,1cyclictest0-21swapper/220:29:492
1279450991411,1cyclictest0-21swapper/219:29:362
1279450991411,1cyclictest0-21swapper/219:15:012
1279450991411,1cyclictest0-21swapper/200:04:282
1279450991410,2cyclictest0-21swapper/222:40:082
1279450991410,2cyclictest0-21swapper/221:04:412
1279450991410,2cyclictest0-21swapper/220:44:402
1279450991410,2cyclictest0-21swapper/220:44:402
127944999149,4cyclictest1242-21mta-sts-daemon21:36:511
127944999148,5cyclictest1247-21mta-sts-daemon22:56:521
127944999144,4cyclictest1311971-21sshd19:34:511
1279449991411,2cyclictest1374589-21grep20:29:381
1279449991411,2cyclictest1362469-21gltestperf20:19:391
1279449991411,2cyclictest1300801-21cpuspeed_turbos19:29:381
1279449991410,3cyclictest1411535-21irqcore20:59:411
1279449991410,3cyclictest1242-21mta-sts-daemon21:52:361
127944899149,4cyclictest1237-21mta-sts-daemon19:27:150
127944899141,3cyclictest1459416-21apt-get21:34:350
1279448991412,1cyclictest0-21swapper/022:00:020
1279448991412,1cyclictest0-21swapper/022:00:020
1279448991411,2cyclictest1646117-21kthreadcore23:39:420
1279448991411,2cyclictest1242-21mta-sts-daemon19:21:070
1279448991411,2cyclictest1237-21mta-sts-daemon20:39:270
3153791133,2phc2sys0-21swapper/300:34:503
3153791130,2phc2sys0-21swapper/323:59:503
3153791130,2phc2sys0-21swapper/322:29:563
3153791130,2phc2sys0-21swapper/321:54:573
3153791130,2phc2sys0-21swapper/319:44:493
127945099131,8cyclictest0-21swapper/221:00:012
1279450991311,1cyclictest0-21swapper/222:54:492
1279450991310,1cyclictest0-21swapper/223:51:352
1279450991310,1cyclictest0-21swapper/223:47:392
1279450991310,1cyclictest0-21swapper/220:34:392
1279450991310,1cyclictest0-21swapper/219:52:212
1279450991310,1cyclictest0-21swapper/219:50:012
1279450991310,1cyclictest0-21swapper/219:24:482
1279450991310,1cyclictest0-21swapper/200:35:532
1279450991310,1cyclictest0-21swapper/200:25:442
1279450991310,1cyclictest0-21swapper/200:12:112
127945099130,4cyclictest0-21swapper/200:20:012
127944999139,2cyclictest1279553-21latency_hist19:10:011
127944999135,3cyclictest501rcuop/200:10:191
1279449991310,2cyclictest1393465-21kthreadcore20:44:421
1279449991310,2cyclictest1393465-21kthreadcore20:44:421
1279449991310,2cyclictest1296806-21kthreadcore19:24:431
127944899135,4cyclictest1373484-21kworker/u16:0+events_unbound20:34:350
3153791127,2phc2sys0-21swapper/321:28:503
3153791120,4phc2sys0-21swapper/322:49:353
3153791120,2phc2sys0-21swapper/322:53:293
3153791120,2phc2sys0-21swapper/322:22:353
3153791120,2phc2sys0-21swapper/320:35:503
127945099123,3cyclictest0-21swapper/219:34:352
1279450991210,1cyclictest0-21swapper/221:31:162
1279450991210,1cyclictest0-21swapper/220:10:022
3153791110,3phc2sys0-21swapper/319:14:483
3153791110,2phc2sys0-21swapper/323:42:303
3153791110,2phc2sys0-21swapper/323:34:333
3153791110,2phc2sys0-21swapper/319:49:343
3153791110,2phc2sys0-21swapper/319:19:363
3153791110,2phc2sys0-21swapper/300:29:453
3153791110,2phc2sys0-21swapper/300:03:083
3153791110,1phc2sys0-21swapper/321:32:033
3153791110,1phc2sys0-21swapper/320:21:113
3153791110,1phc2sys0-21swapper/319:58:553
3153791110,1phc2sys0-21swapper/319:21:493
14438962110,3sleep30-21swapper/321:22:183
492398100,2rtkit-daemon1242-21mta-sts-daemon19:09:500
3153791101,3phc2sys0-21swapper/323:00:263
3153791101,2phc2sys0-21swapper/323:07:443
3153791101,2phc2sys0-21swapper/322:11:293
3153791101,2phc2sys0-21swapper/319:29:463
3153791101,2phc2sys0-21swapper/319:09:393
3153791101,2phc2sys0-21swapper/300:19:433
3153791100,3phc2sys0-21swapper/323:10:323
3153791100,2phc2sys0-21swapper/323:23:553
3153791100,2phc2sys0-21swapper/322:16:063
3153791100,2phc2sys0-21swapper/321:35:183
3153791100,2phc2sys0-21swapper/320:49:363
3153791100,1phc2sys0-21swapper/321:07:523
127945099108,1cyclictest0-21swapper/219:10:012
315379191,3phc2sys0-21swapper/320:04:353
315379191,2phc2sys0-21swapper/322:32:213
315379191,2phc2sys0-21swapper/320:19:433
315379190,2phc2sys0-21swapper/320:59:423
315379190,2phc2sys0-21swapper/320:26:003
315379190,2phc2sys0-21swapper/300:35:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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