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2026-07-01 - 22:52
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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 Wed Jul 01, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34862821070,2sleep20-21swapper/207:19:542
53835921050,2sleep1538363-21unixbench_multi09:45:041
69269721020,2sleep1692633-21ssh11:30:011
339131993115,11cyclictest0-21swapper/108:55:021
7222402270,1sleep10-21swapper/111:50:011
33913399271,16cyclictest0-21swapper/212:20:022
339127992615,7cyclictest780798-21latency_hist12:30:010
33913199250,14cyclictest768318-21taskset12:23:561
339133992421,1cyclictest0-21swapper/212:10:022
33913199243,13cyclictest1-21systemd07:35:021
339131992417,6cyclictest0-21swapper/108:10:011
339131992416,7cyclictest648832-21latency_hist11:00:031
339131992416,7cyclictest0-21swapper/109:35:021
339131992415,8cyclictest677850-21timedrift11:20:011
33913199241,18cyclictest510242-21taskset09:29:261
339127992420,3cyclictest389384-21tr07:50:020
339127992415,5cyclictest765872-21kthreadcore12:19:590
339133992320,1cyclictest0-21swapper/207:45:002
33913199238,10cyclictest698046-21kthreadcore11:34:561
33913199238,10cyclictest698046-21kthreadcore11:34:561
33913199235,12cyclictest1020-21runrttasks10:18:061
339131992315,7cyclictest461604-21latency_hist08:50:011
339131992315,7cyclictest377420-21swap07:40:021
339131992315,6cyclictest0-21swapper/112:15:011
339131992314,8cyclictest530389-21/usr/sbin/munin09:40:021
339131992314,8cyclictest407713-21proc_pri08:05:021
33913199231,16cyclictest760645-21sh12:18:071
33913199231,13cyclictest723975-21runrttasks11:53:111
33913199230,12cyclictest444805-21taskset08:39:211
339127992320,2cyclictest758872-21grep12:15:010
339133992219,1cyclictest0-21swapper/208:55:012
33913199227,10cyclictest597823-21ssh10:27:201
33913199223,14cyclictest450558-21taskset08:41:121
33913199223,10cyclictest702231-21diskmemload11:39:041
339131992216,5cyclictest480050-21switchtime09:05:021
339131992216,2cyclictest67250irq/126-eno112:04:501
33913199221,16cyclictest604926-21taskset10:31:351
33913199221,16cyclictest480698-21runrttasks09:07:171
33913199221,16cyclictest426611-21taskset08:20:571
33913199221,16cyclictest339663-21taskset07:10:201
33913199221,16cyclictest339663-21taskset07:10:201
33913199221,15cyclictest531344-21runrttasks09:41:311
33913199221,12cyclictest679143-21taskset11:22:281
33913199221,12cyclictest657354-21runrttasks11:08:011
33913199221,12cyclictest651203-21runrttasks11:04:531
33913199221,12cyclictest414669-21runrttasks08:12:031
33913199221,12cyclictest384033-21runrttasks07:45:421
33913199220,17cyclictest665088-21seq11:14:211
33913199220,17cyclictest627348-21taskset10:46:571
33913199220,17cyclictest494393-21taskset09:16:351
33913199220,17cyclictest487583-21taskset09:13:061
33913199220,17cyclictest468611-21seq08:56:091
33913199220,17cyclictest438815-21taskset08:34:071
33913199220,17cyclictest420869-21taskset08:19:331
33913199220,17cyclictest396249-21taskset07:55:121
33913199220,16cyclictest553148-21runrttasks09:55:061
33913199220,13cyclictest730586-21seq11:56:051
33913199220,13cyclictest635879-21taskset10:54:431
339133992118,1cyclictest0-21swapper/211:30:012
33913199213,8cyclictest0-21swapper/110:36:511
33913199211,15cyclictest781756-21runrttasks12:30:221
33913199211,15cyclictest619609-21runrttasks10:40:481
33913199211,12cyclictest390013-21runrttasks07:50:151
33913199211,11cyclictest377880-21taskset07:41:221
33913199210,16cyclictest790576-21taskset12:39:081
33913199210,16cyclictest774431-21taskset12:25:301
33913199210,16cyclictest545932-21taskset09:50:221
33913199210,16cyclictest1020-21runrttasks10:05:201
33913199210,12cyclictest745731-21taskset12:07:171
33913199210,12cyclictest708690-21sh11:41:261
33913199210,12cyclictest561615-21taskset10:03:241
33913199210,12cyclictest501632-21taskset09:20:241
33913199210,12cyclictest432548-21taskset08:25:261
33913199210,12cyclictest359768-21taskset07:25:151
33913199210,12cyclictest353552-21taskset07:20:351
33913199210,12cyclictest347506-21taskset07:15:181
339127992118,2cyclictest626208-21sh10:45:020
339127992118,2cyclictest559648-21cron10:00:010
339127992118,2cyclictest1237-21mta-sts-daemon10:50:010
339127992115,4cyclictest1-21systemd07:40:000
339127992112,5cyclictest677590-21mailstats11:19:590
492398200,2rtkit-daemon1246-21mta-sts-daemon07:27:480
339133992017,1cyclictest0-21swapper/212:05:012
339133992017,1cyclictest0-21swapper/210:55:012
339133992017,1cyclictest0-21swapper/210:30:022
339133992014,4cyclictest0-21swapper/210:44:502
33913199201,14cyclictest589906-21taskset10:20:241
33913199201,11cyclictest575397-21runrttasks10:10:571
33912799209,6cyclictest0-21swapper/011:34:500
33912799209,6cyclictest0-21swapper/011:34:500
33912799209,6cyclictest0-21swapper/009:34:510
339127992017,2cyclictest660-21dbus-daemon11:10:030
339127992017,2cyclictest660-21dbus-daemon11:00:000
339127992017,2cyclictest461785-21wc08:50:020
339127992013,6cyclictest0-21swapper/010:55:000
339127992012,4cyclictest544880-21latency_hist09:50:020
339127992011,5cyclictest608168-21kthreadcore10:34:570
339133991917,1cyclictest0-21swapper/212:00:022
339133991916,1cyclictest0-21swapper/211:49:532
339133991916,1cyclictest0-21swapper/209:00:012
33912799198,6cyclictest0-21swapper/011:39:490
339127991916,2cyclictest692881-21dpkg11:30:010
339127991916,2cyclictest407285-21latency_hist08:05:000
339127991915,3cyclictest216-21jbd2/sda2-812:35:030
3153791191,3phc2sys0-21swapper/310:35:383
3153791190,2phc2sys0-21swapper/310:58:223
3153791190,2phc2sys0-21swapper/309:15:533
33913399189,3cyclictest0-21swapper/207:52:482
339133991816,1cyclictest0-21swapper/211:55:032
339133991816,1cyclictest0-21swapper/211:40:032
339133991816,1cyclictest0-21swapper/207:35:002
339133991815,1cyclictest0-21swapper/210:50:022
339133991815,1cyclictest0-21swapper/209:25:022
33912799188,5cyclictest0-21swapper/012:20:030
339127991816,1cyclictest0-21swapper/009:55:010
339127991815,2cyclictest781-21gmain11:50:020
339127991815,2cyclictest660-21dbus-daemon08:30:020
339127991815,2cyclictest589325-21latency_hist10:20:020
339127991815,2cyclictest4915-21sendmail-mta08:33:350
339127991815,2cyclictest352971-21systemd-run07:20:020
339127991812,5cyclictest346539-21cut07:15:030
33912799180,4cyclictest598727-21apt-get10:29:500
7435572170,2sleep30-21swapper/312:04:583
339133991715,1cyclictest0-21swapper/212:15:002
339133991714,1cyclictest0-21swapper/207:25:022
339133991713,2cyclictest0-21swapper/209:28:302
33913199171,11cyclictest338930-21latency_hist07:10:031
33912799179,4cyclictest682751-21kthreadcore11:24:560
33912799177,5cyclictest0-21swapper/010:03:480
33912799176,6cyclictest0-21swapper/009:24:500
339127991714,2cyclictest795871-21ptp4l-jitter12:40:010
339127991714,2cyclictest465741-21kthreadcore08:55:020
339127991714,2cyclictest401413-21needreboot08:00:010
339127991712,4cyclictest1-21systemd12:00:030
339127991712,1cyclictest492398rtkit-daemon07:14:190
339127991711,5cyclictest669941-21missed_timers11:14:590
3153791171,4phc2sys0-21swapper/308:09:503
3153791170,2phc2sys0-21swapper/310:10:043
3153791170,2phc2sys0-21swapper/308:05:003
33913399161,6cyclictest0-21swapper/210:40:022
339133991614,1cyclictest0-21swapper/212:30:012
339133991614,1cyclictest0-21swapper/212:25:022
339133991614,1cyclictest0-21swapper/208:44:582
339133991614,1cyclictest0-21swapper/208:05:022
339133991614,1cyclictest0-21swapper/207:40:022
339133991614,1cyclictest0-21swapper/207:15:022
339133991614,1cyclictest0-21swapper/207:15:022
339133991614,1cyclictest0-21swapper/207:10:022
339133991613,1cyclictest0-21swapper/210:05:022
339133991613,1cyclictest0-21swapper/209:49:522
339133991613,1cyclictest0-21swapper/209:39:582
339133991613,1cyclictest0-21swapper/209:10:012
339133991612,2cyclictest0-21swapper/211:21:582
33912799167,5cyclictest0-21swapper/012:04:430
33912799163,8cyclictest660-21dbus-daemon11:45:010
339127991613,2cyclictest660-21dbus-daemon10:15:010
339127991613,2cyclictest613615-21cpuspeed_turbos10:39:500
339127991613,2cyclictest496302-21hddtemp_smartct09:19:540
339127991613,2cyclictest456172-21latency_hist08:45:030
339127991613,2cyclictest0-21swapper/008:20:030
3153791160,3phc2sys0-21swapper/309:35:013
3153791160,2phc2sys0-21swapper/312:17:053
3153791160,2phc2sys0-21swapper/311:50:313
3153791160,2phc2sys0-21swapper/311:36:413
339133991513,1cyclictest0-21swapper/208:40:022
339133991513,1cyclictest0-21swapper/208:35:022
339133991513,1cyclictest0-21swapper/208:25:022
339133991512,1cyclictest0-21swapper/211:16:382
339133991512,1cyclictest0-21swapper/211:09:562
339133991512,1cyclictest0-21swapper/210:34:562
339133991512,1cyclictest0-21swapper/210:23:502
339133991512,1cyclictest0-21swapper/210:20:012
339133991512,1cyclictest0-21swapper/209:57:512
339133991512,1cyclictest0-21swapper/209:44:572
339133991512,1cyclictest0-21swapper/209:33:392
339133991512,1cyclictest0-21swapper/209:19:572
339133991512,1cyclictest0-21swapper/208:19:542
339133991512,1cyclictest0-21swapper/207:29:552
339133991511,2cyclictest0-21swapper/211:13:572
339133991510,2cyclictest0-21swapper/209:10:112
33912799157,4cyclictest0-21swapper/011:54:570
33912799156,4cyclictest0-21swapper/007:10:020
339127991513,1cyclictest0-21swapper/008:15:010
339127991512,2cyclictest413796-21systemd08:10:010
339127991512,2cyclictest1246-21mta-sts-daemon09:41:170
339127991512,2cyclictest1242-21mta-sts-daemon09:39:510
339127991510,4cyclictest345066-21munin-node07:30:240
33912799150,4cyclictest0-21swapper/012:09:430
33912799150,11cyclictest487467-21ssh09:12:440
3153791150,2phc2sys0-21swapper/312:13:573
3153791150,2phc2sys0-21swapper/310:40:573
3153791150,2phc2sys0-21swapper/310:06:573
3153791150,1phc2sys0-21swapper/311:26:033
3153791150,1phc2sys0-21swapper/311:09:003
492398140,5rtkit-daemon1242-21mta-sts-daemon09:09:500
339133991412,1cyclictest0-21swapper/210:05:192
339133991412,1cyclictest0-21swapper/208:09:522
339133991412,1cyclictest0-21swapper/207:50:012
339133991411,2cyclictest0-21swapper/208:49:572
339133991411,2cyclictest0-21swapper/208:29:522
339133991411,1cyclictest0-21swapper/211:30:302
339133991411,1cyclictest0-21swapper/211:30:302
339133991411,1cyclictest0-21swapper/210:14:532
339133991411,1cyclictest0-21swapper/208:14:572
339133991411,1cyclictest0-21swapper/207:59:582
33913399140,9cyclictest0-21swapper/212:39:492
33912799149,2cyclictest1242-21mta-sts-daemon11:02:550
339127991411,2cyclictest592752-21kernelversion10:24:580
339127991411,2cyclictest469875-21grep08:59:550
339127991411,2cyclictest447628-21kthreadcore08:39:590
339127991411,2cyclictest393153-21kthreadcore07:54:580
339127991411,2cyclictest356463-21kthreadcore07:24:590
339127991411,2cyclictest1237-21mta-sts-daemon10:08:200
3153791140,5phc2sys0-21swapper/307:20:003
3153791140,2phc2sys0-21swapper/312:27:453
3153791140,2phc2sys0-21swapper/309:38:393
3153791140,2phc2sys0-21swapper/309:12:353
3928112130,3sleep30-21swapper/307:54:573
339133991311,1cyclictest0-21swapper/212:35:002
339133991311,1cyclictest0-21swapper/210:59:562
339133991310,1cyclictest0-21swapper/209:50:552
339133991310,1cyclictest0-21swapper/209:04:542
33912799138,4cyclictest1246-21mta-sts-daemon08:20:480
33912799137,5cyclictest402256-21kworker/u16:3-rpciod09:27:030
339127991310,2cyclictest475713-21idleruntime09:04:540
339127991310,2cyclictest379477-21kthreadcore07:44:570
3153791138,2phc2sys0-21swapper/310:24:383
3153791131,6phc2sys0-21swapper/312:20:183
3153791131,6phc2sys0-21swapper/310:49:503
3153791131,2phc2sys0-21swapper/309:45:313
3153791130,3phc2sys0-21swapper/307:34:513
3153791130,2phc2sys0-21swapper/312:07:533
3153791130,2phc2sys0-21swapper/307:26:463
3153791130,2phc2sys0-21swapper/307:11:093
3153791130,2phc2sys0-21swapper/307:11:093
3153791130,1phc2sys0-21swapper/309:52:283
339133991210,1cyclictest0-21swapper/211:44:032
339133991210,1cyclictest0-21swapper/211:00:032
3153791120,4phc2sys0-21swapper/308:55:013
3153791120,3phc2sys0-21swapper/312:39:503
3153791120,2phc2sys0-21swapper/311:57:163
3153791120,2phc2sys0-21swapper/308:47:563
3153791120,2phc2sys0-21swapper/307:47:383
3153791120,1phc2sys0-21swapper/311:11:393
3153791110,3phc2sys0-21swapper/311:49:563
3153791110,2phc2sys0-21swapper/311:16:263
3153791110,2phc2sys0-21swapper/310:19:553
3153791110,2phc2sys0-21swapper/309:57:253
3153791110,2phc2sys0-21swapper/309:28:013
3153791110,2phc2sys0-21swapper/309:09:563
3153791110,1phc2sys0-21swapper/311:20:543
3153791110,1phc2sys0-21swapper/309:41:183
3153791110,1phc2sys0-21swapper/308:42:313
3153791110,1phc2sys0-21swapper/308:31:333
3153791102,2phc2sys0-21swapper/309:04:353
3153791101,2phc2sys0-21swapper/308:59:563
3153791100,3phc2sys0-21swapper/310:04:273
3153791100,3phc2sys0-21swapper/308:19:563
3153791100,2phc2sys0-21swapper/312:33:203
3153791100,2phc2sys0-21swapper/311:31:333
3153791100,2phc2sys0-21swapper/311:31:333
3153791100,2phc2sys0-21swapper/311:01:113
3153791100,2phc2sys0-21swapper/310:51:313
3153791100,2phc2sys0-21swapper/310:25:283
3153791100,2phc2sys0-21swapper/309:23:113
3153791100,2phc2sys0-21swapper/307:36:083
315379190,2phc2sys0-21swapper/311:40:423
315379190,2phc2sys0-21swapper/310:31:173
315379190,2phc2sys0-21swapper/308:39:513
315379190,2phc2sys0-21swapper/308:25:043
315379190,2phc2sys0-21swapper/308:20:033
315379190,2phc2sys0-21swapper/308:14:563
315379190,2phc2sys0-21swapper/307:55:033
315379190,2phc2sys0-21swapper/307:45:013
315379190,2phc2sys0-21swapper/307:24:543
315379190,2phc2sys0-21swapper/307:05:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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