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2026-06-14 - 10:58
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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 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13497422970,2sleep20-21swapper/220:35:272
16885272700,1sleep11688526-21ssh00:32:201
1238234992317,2cyclictest67250irq/126-eno122:35:311
1238234992317,2cyclictest67250irq/126-eno122:15:241
1238233992320,2cyclictest1375031-21munin-run21:00:010
1238233992214,4cyclictest1604210-21sed23:35:260
1238237992118,1cyclictest0-21swapper/221:22:372
1238234992118,2cyclictest1512656-21systemd22:35:011
1238234992118,2cyclictest1394741-21grep21:15:031
1238234992114,2cyclictest0-21swapper/121:35:011
1238234992112,1cyclictest191rcu_preempt22:06:521
1238233992118,2cyclictest1301859-21/usr/sbin/munin20:00:010
1238233992111,6cyclictest0-21swapper/021:15:010
1238233992111,5cyclictest0-21swapper/000:25:020
1238234992017,2cyclictest660-21dbus-daemon21:25:001
1238234992017,2cyclictest1579194-21sort23:20:031
1238234992011,1cyclictest191rcu_preempt19:35:231
1238234992011,1cyclictest191rcu_preempt19:35:231
1238237991916,1cyclictest0-21swapper/221:40:012
1238237991916,1cyclictest0-21swapper/219:15:022
123823499199,2cyclictest191rcu_preempt21:00:011
1238234991916,2cyclictest765-1atopacctd23:40:281
1238234991916,2cyclictest700-21rs:main1
1238234991916,2cyclictest693-21systemd-logind23:30:011
1238234991914,1cyclictest191rcu_preempt19:15:021
1238234991913,2cyclictest492398rtkit-daemon21:27:591
123823399199,6cyclictest0-21swapper/000:10:030
1238233991917,1cyclictest1490212-21cron22:20:010
1238233991916,2cyclictest1438660-21grep21:45:000
1238233991916,2cyclictest0-21swapper/020:20:010
1238233991911,5cyclictest1242-21mta-sts-daemon21:17:410
3153791180,2phc2sys0-21swapper/322:13:443
3153791180,2phc2sys0-21swapper/300:18:493
3153791180,1phc2sys0-21swapper/321:00:023
1238237991816,1cyclictest0-21swapper/222:30:032
1238237991816,1cyclictest0-21swapper/219:45:012
1238237991816,1cyclictest0-21swapper/200:00:022
1238237991815,1cyclictest0-21swapper/219:25:022
1238237991815,1cyclictest0-21swapper/219:25:022
1238237991815,1cyclictest0-21swapper/200:25:242
1238237991814,2cyclictest0-21swapper/219:45:252
1238237991814,2cyclictest0-21swapper/219:35:302
1238237991814,2cyclictest0-21swapper/219:35:302
123823499188,3cyclictest191rcu_preempt20:00:011
123823499187,5cyclictest1696201-21sh00:37:361
123823499187,4cyclictest1242-21mta-sts-daemon21:38:141
123823499187,1cyclictest0-21swapper/120:10:281
1238234991815,2cyclictest671-21polkitd22:25:021
1238234991815,2cyclictest1456692-21kthreadcore21:55:271
1238234991815,2cyclictest1356865-21systemd-run20:45:011
123823399189,5cyclictest0-21swapper/023:20:020
123823399185,7cyclictest0-21swapper/022:50:180
1238233991815,2cyclictest660-21dbus-daemon22:40:020
1238233991815,2cyclictest1660716-21grep00:15:180
1238233991815,2cyclictest1503679-21grep22:25:310
1238233991815,2cyclictest1345306-21cut20:35:190
1238233991815,2cyclictest1332650-21latency_hist20:25:020
1238233991815,2cyclictest1320098-21idleruntime-cro20:15:000
123823399180,2cyclictest1557771-21diskstats23:05:190
123823399180,13cyclictest1277574-21/usr/sbin/munin19:40:260
3153791170,2phc2sys0-21swapper/323:50:363
3153791170,2phc2sys0-21swapper/322:35:523
3153791170,2phc2sys0-21swapper/321:57:333
3153791170,2phc2sys0-21swapper/321:15:243
1238237991715,1cyclictest0-21swapper/223:40:022
1238237991715,1cyclictest0-21swapper/221:15:022
1238237991715,1cyclictest0-21swapper/220:20:012
1238237991714,1cyclictest0-21swapper/222:55:202
1238237991714,1cyclictest0-21swapper/221:55:012
1238237991714,1cyclictest0-21swapper/221:00:012
1238237991714,1cyclictest0-21swapper/220:15:012
1238237991714,1cyclictest0-21swapper/200:35:012
123823499179,4cyclictest1338950-21aten2.4-expect20:30:171
123823499179,4cyclictest1238231-21cyclictest23:30:291
123823499178,2cyclictest191rcu_preempt20:10:011
123823499177,3cyclictest191rcu_preempt19:50:011
123823499175,5cyclictest660-21dbus-daemon00:25:001
1238234991714,2cyclictest1651148-21unixbench_singl00:05:321
1238234991714,2cyclictest1582175-21tail23:20:251
1238234991714,2cyclictest1543237-21gltestperf22:55:191
1238234991714,2cyclictest1461259-21apt-get22:00:181
1238234991713,3cyclictest1640765-21kthreadcore00:00:241
1238234991712,4cyclictest1446725-21cpuspeed_turbos21:50:201
1238234991712,1cyclictest1320106-21kworker/1:0+events_freezable20:25:251
1238234991711,1cyclictest1608351-21kworker/1:0+events_freezable23:45:271
1238234991710,2cyclictest191rcu_preempt19:15:201
123823399176,6cyclictest0-21swapper/000:10:210
123823399176,6cyclictest0-21swapper/000:10:210
123823399172,1cyclictest0-21swapper/023:45:170
1238233991715,1cyclictest1362993-21sh20:50:010
1238233991714,2cyclictest1645592-21sh00:05:030
1238233991714,2cyclictest1545220-21kthreadcore22:55:230
1238233991714,2cyclictest1258840-21apt-key19:25:010
1238233991714,2cyclictest1258840-21apt-key19:25:010
1238233991711,5cyclictest1369146-21systemd-run20:55:020
1238233991710,2cyclictest1446447-21ssh21:50:170
3153791160,2phc2sys0-21swapper/321:42:263
123823799161,9cyclictest0-21swapper/223:20:012
1238237991614,1cyclictest0-21swapper/221:00:262
1238237991614,1cyclictest0-21swapper/200:25:002
1238237991614,1cyclictest0-21swapper/200:05:252
1238237991613,1cyclictest0-21swapper/200:39:232
1238237991613,1cyclictest0-21swapper/200:20:002
1238237991613,1cyclictest0-21swapper/200:00:162
1238237991612,1cyclictest0-21swapper/222:12:002
123823499164,7cyclictest1523535-21tr22:40:251
123823499164,7cyclictest1523535-21tr22:40:251
123823499161,5cyclictest85-21kswapd023:54:541
1238234991615,1cyclictest0-21swapper/119:34:241
1238234991614,1cyclictest1277875-21cpuspeed_turbos19:40:191
1238234991613,2cyclictest1675646-21sh00:25:191
1238234991613,2cyclictest1659220-21rm00:12:381
1238234991613,2cyclictest1659220-21rm00:12:381
1238234991613,2cyclictest1401923-21sh21:20:011
1238234991613,2cyclictest1326134-21cron20:20:001
1238234991613,2cyclictest1258964-21apt-key19:25:021
1238234991613,2cyclictest1258964-21apt-key19:25:021
1238234991612,3cyclictest781-21gmain22:15:011
1238234991612,3cyclictest1434546-21kthreadcore21:40:261
1238234991611,2cyclictest1242-21mta-sts-daemon23:03:131
1238234991611,1cyclictest191rcu_preempt22:53:361
123823499160,8cyclictest1328616-21kthreadcore20:20:251
123823399167,5cyclictest0-21swapper/000:40:010
123823399167,4cyclictest0-21swapper/000:30:160
1238233991614,1cyclictest1593837-21sh23:30:020
1238233991613,2cyclictest1637932-21turbostat00:00:010
1238233991613,2cyclictest1431500-21munin-plugin-st21:40:020
1238233991613,2cyclictest1308190-21systemd-run20:05:020
1238233991613,2cyclictest1245568-21kthreadcore19:15:030
1238233991613,2cyclictest1238231-21cyclictest22:30:280
1238233991613,2cyclictest1237-21mta-sts-daemon21:30:210
1238233991613,2cyclictest0-21swapper/022:50:000
1238233991612,3cyclictest3937-21cron19:25:030
1238233991612,1cyclictest1247-21mta-sts-daemon21:49:370
1238233991610,5cyclictest1414350-21latency21:25:260
3153791156,2phc2sys0-21swapper/322:55:173
3153791151,3phc2sys0-21swapper/319:10:053
3153791150,2phc2sys0-21swapper/300:20:243
1238237991513,1cyclictest0-21swapper/222:00:242
1238237991513,1cyclictest0-21swapper/220:55:022
1238237991513,1cyclictest0-21swapper/220:30:012
1238237991512,2cyclictest0-21swapper/221:30:212
1238237991512,1cyclictest0-21swapper/223:08:252
1238237991512,1cyclictest0-21swapper/222:54:382
1238237991512,1cyclictest0-21swapper/222:21:132
1238237991512,1cyclictest0-21swapper/222:15:322
1238237991512,1cyclictest0-21swapper/221:59:292
1238237991512,1cyclictest0-21swapper/221:25:252
1238237991511,2cyclictest0-21swapper/223:31:382
123823499159,5cyclictest1242-21mta-sts-daemon20:52:251
123823499159,1cyclictest191rcu_preempt19:10:021
123823499158,3cyclictest0-21swapper/123:40:021
123823499157,1cyclictest191rcu_preempt21:05:251
123823499155,4cyclictest1567398-21kthreadcore23:10:231
1238234991512,2cyclictest1561439-21kthreadcore23:05:251
1238234991512,2cyclictest1259284-21acpi19:25:151
1238234991512,2cyclictest1246-21mta-sts-daemon00:16:001
1238234991511,3cyclictest660-21dbus-daemon00:00:031
1238234991511,3cyclictest1303485-21kthreadcore20:00:221
123823399159,5cyclictest1246-21mta-sts-daemon21:24:490
123823399158,4cyclictest1242-21mta-sts-daemon20:30:030
123823399156,5cyclictest0-21swapper/023:40:210
123823399156,5cyclictest0-21swapper/019:52:250
123823399154,5cyclictest1680599-21sshd00:25:360
1238233991513,1cyclictest1063-21lldpd23:02:030
1238233991512,2cyclictest1456163-21kthreadcore21:55:260
1238233991512,2cyclictest0-21swapper/021:05:180
1238233991510,4cyclictest1242-21mta-sts-daemon23:10:110
1238233991510,4cyclictest1242-21mta-sts-daemon22:08:450
3153791147,3phc2sys0-21swapper/323:02:493
3153791141,3phc2sys0-21swapper/319:05:173
3153791140,4phc2sys0-21swapper/323:15:123
3153791140,3phc2sys0-21swapper/322:07:133
3153791140,2phc2sys0-21swapper/319:20:203
3153791140,2phc2sys0-21swapper/319:20:203
16525782140,3sleep30-21swapper/300:09:513
1238237991412,1cyclictest0-21swapper/223:44:432
1238237991412,1cyclictest0-21swapper/222:30:292
1238237991412,1cyclictest0-21swapper/220:02:462
1238237991411,2cyclictest0-21swapper/221:41:432
1238237991411,1cyclictest0-21swapper/223:28:192
1238237991411,1cyclictest0-21swapper/222:50:012
1238237991411,1cyclictest0-21swapper/222:40:202
1238237991411,1cyclictest0-21swapper/222:40:202
1238237991411,1cyclictest0-21swapper/222:05:252
1238237991411,1cyclictest0-21swapper/220:45:202
1238237991411,1cyclictest0-21swapper/220:31:032
1238237991411,1cyclictest0-21swapper/220:05:282
1238237991411,1cyclictest0-21swapper/220:00:012
1238237991411,1cyclictest0-21swapper/219:50:272
1238237991411,1cyclictest0-21swapper/200:10:222
1238237991411,1cyclictest0-21swapper/200:10:222
1238237991410,2cyclictest0-21swapper/223:47:372
1238237991410,2cyclictest0-21swapper/221:48:282
123823499148,2cyclictest1401921-21kworker/1:1+events_freezable21:45:231
123823499142,7cyclictest36-21ksoftirqd/120:40:011
1238234991411,2cyclictest1529124-21kthreadcore22:45:231
1238234991411,2cyclictest1238231-21cyclictest22:28:331
1238234991410,3cyclictest1289769-21aten_repower_cu19:50:191
123823499140,6cyclictest1246-21mta-sts-daemon20:45:191
123823399145,4cyclictest1246-21mta-sts-daemon22:04:160
123823399145,3cyclictest1356618-21sshd20:42:360
1238233991412,1cyclictest1238231-21cyclictest23:50:250
1238233991411,2cyclictest765-1atopacctd22:10:180
1238233991411,2cyclictest1594351-21tr23:30:180
1238233991411,2cyclictest1581393-21kthreadcore23:20:240
1238233991411,2cyclictest1376039-21gltestperf21:00:220
1238233991411,2cyclictest1314084-21sh20:10:010
1238233991411,2cyclictest1276711-21timerwakeupswit19:35:310
1238233991411,2cyclictest1276711-21timerwakeupswit19:35:310
1238233991411,2cyclictest1238303-21systemd19:10:020
1238233991411,2cyclictest1238231-21cyclictest22:20:250
1238233991411,2cyclictest1-21systemd22:40:300
1238233991411,2cyclictest1-21systemd22:40:300
1238233991411,2cyclictest1-21systemd19:33:370
3153791131,5phc2sys0-21swapper/320:40:183
3153791131,3phc2sys0-21swapper/321:00:183
3153791130,5phc2sys0-21swapper/321:05:183
3153791130,4phc2sys0-21swapper/320:30:173
3153791130,2phc2sys0-21swapper/323:45:153
3153791130,2phc2sys0-21swapper/323:42:143
3153791130,2phc2sys0-21swapper/323:35:223
3153791130,2phc2sys0-21swapper/323:05:473
3153791130,2phc2sys0-21swapper/322:47:393
3153791130,2phc2sys0-21swapper/322:00:173
3153791130,2phc2sys0-21swapper/319:25:243
3153791130,2phc2sys0-21swapper/300:01:543
123823799139,2cyclictest0-21swapper/223:23:292
123823799139,2cyclictest0-21swapper/223:02:042
1238237991311,1cyclictest0-21swapper/223:50:202
1238237991311,1cyclictest0-21swapper/222:35:162
1238237991311,1cyclictest0-21swapper/219:33:182
1238237991311,1cyclictest0-21swapper/219:25:232
1238237991311,1cyclictest0-21swapper/219:20:022
1238237991310,1cyclictest0-21swapper/223:12:262
1238237991310,1cyclictest0-21swapper/221:15:262
1238237991310,1cyclictest0-21swapper/220:20:412
123823399138,4cyclictest1237-21mta-sts-daemon19:16:500
123823399137,5cyclictest1242-21mta-sts-daemon19:47:080
1238233991311,1cyclictest1333787-21sort20:25:230
3153791120,5phc2sys0-21swapper/322:54:563
3153791120,2phc2sys0-21swapper/321:39:413
3153791120,2phc2sys0-21swapper/320:17:133
3153791120,1phc2sys0-21swapper/323:33:203
3153791120,1phc2sys0-21swapper/322:41:453
3153791120,1phc2sys0-21swapper/322:41:453
15922942120,4sleep30-21swapper/323:25:583
1238237991210,1cyclictest0-21swapper/221:05:262
1238237991210,1cyclictest0-21swapper/219:10:022
3153791113,3phc2sys0-21swapper/321:50:183
3153791111,5phc2sys0-21swapper/319:45:173
3153791111,2phc2sys0-21swapper/323:55:253
3153791111,2phc2sys0-21swapper/322:25:223
3153791111,2phc2sys0-21swapper/321:46:153
3153791111,2phc2sys0-21swapper/320:39:013
3153791110,6phc2sys0-21swapper/300:35:173
3153791110,3phc2sys0-21swapper/322:34:233
3153791110,2phc2sys0-21swapper/321:30:163
3153791110,2phc2sys0-21swapper/320:10:173
3153791110,2phc2sys0-21swapper/319:34:253
3153791110,2phc2sys0-21swapper/300:13:523
3153791110,2phc2sys0-21swapper/300:13:523
3153791110,1phc2sys0-21swapper/320:25:363
3153791110,1phc2sys0-21swapper/320:06:333
3153791110,1phc2sys0-21swapper/319:38:113
3153791110,1phc2sys0-21swapper/319:38:113
3153791110,1phc2sys0-21swapper/300:34:423
123823799119,1cyclictest0-21swapper/220:40:132
3153791101,3phc2sys0-21swapper/323:10:153
3153791101,2phc2sys0-21swapper/321:21:023
3153791101,2phc2sys0-21swapper/320:00:243
3153791101,2phc2sys0-21swapper/319:55:263
3153791100,3phc2sys0-21swapper/319:40:233
3153791100,2phc2sys0-21swapper/323:20:303
3153791100,2phc2sys0-21swapper/322:20:093
3153791100,2phc2sys0-21swapper/322:15:203
3153791100,2phc2sys0-21swapper/321:25:193
3153791100,2phc2sys0-21swapper/320:20:273
3153791100,2phc2sys0-21swapper/300:28:393
3153791100,1phc2sys0-21swapper/320:49:283
315379191,3phc2sys0-21swapper/319:55:013
315379190,2phc2sys0-21swapper/321:10:043
315379190,2phc2sys0-21swapper/320:50:243
315379190,2phc2sys0-21swapper/319:15:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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