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2026-07-21 - 14:03
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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 Jul 21, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145744021640,2sleep30-21swapper/322:06:063
132020821120,2sleep30-21swapper/320:26:033
150312921050,3sleep30-21swapper/322:36:083
12930962950,2sleep20-21swapper/220:01:092
15287672750,1sleep11528766-21ssh22:52:491
13799762730,1sleep01379973-21ssh21:11:120
1226314992522,2cyclictest664-21dbus-daemon00:20:020
1226315992417,2cyclictest69250irq/121-eno100:40:021
1226314992320,2cyclictest1633531-21apt00:05:000
1226316992211,6cyclictest0-21swapper/222:30:022
1226315992219,2cyclictest664-21dbus-daemon22:30:021
1226315992219,2cyclictest1611267-21sh23:50:011
1226314992213,8cyclictest1226312-21cyclictest21:57:240
3240591211,5phc2sys0-21swapper/319:06:023
1226316992119,1cyclictest0-21swapper/223:20:012
1226315992118,2cyclictest1500020-21systemd22:35:011
122631499217,6cyclictest0-21swapper/019:46:070
1226314992118,2cyclictest1226312-21cyclictest23:10:010
1226315992017,2cyclictest1603862-21cron23:45:011
1226315992017,2cyclictest1568026-21fschecks_count23:21:051
1226314992017,2cyclictest0-21swapper/023:30:030
1226314992016,2cyclictest0-21swapper/023:50:030
1226314992013,6cyclictest0-21swapper/022:10:010
1226314992011,5cyclictest1414451-21kthreadcore21:36:090
12590092190,2sleep30-21swapper/319:35:013
1226316991916,1cyclictest0-21swapper/200:10:002
1226315991916,2cyclictest664-21dbus-daemon20:20:021
1226315991916,2cyclictest1589209-21wc23:35:021
1226315991916,2cyclictest1426285-21sh21:45:011
122631499193,5cyclictest491rcuog/223:42:450
1226314991916,2cyclictest1420395-21irqcore21:41:080
1226314991916,2cyclictest0-21swapper/022:55:020
1226314991912,6cyclictest0-21swapper/022:41:060
1226314991911,7cyclictest0-21swapper/000:26:010
1226314991910,8cyclictest0-21swapper/000:15:010
1157598190,2rtkit-daemon1309-21mta-sts-daemon20:27:151
3240591180,4phc2sys0-21swapper/321:41:033
1226316991815,1cyclictest0-21swapper/221:56:052
1226315991815,2cyclictest662-21avahi-daemon19:45:021
1226315991814,3cyclictest664-21dbus-daemon21:05:011
1226315991814,3cyclictest664-21dbus-daemon21:05:011
122631499188,6cyclictest1404866-21cpuspeed21:31:030
122631499182,6cyclictest1471470-21expr22:16:030
122631499182,6cyclictest1471470-21expr22:16:030
1226314991815,2cyclictest1520345-21proc_pri22:46:120
1226314991815,2cyclictest1331612-21cron20:35:010
1226314991815,2cyclictest1034-21runrttasks23:19:210
1226314991814,3cyclictest672-21polkitd21:05:010
1226314991814,3cyclictest672-21polkitd21:05:010
1226314991811,6cyclictest0-21swapper/023:05:010
1226314991811,6cyclictest0-21swapper/000:10:010
1226316991714,1cyclictest0-21swapper/223:37:312
1226316991712,2cyclictest0-21swapper/223:27:092
1226316991711,1cyclictest0-21swapper/223:46:022
1226315991715,1cyclictest1034-21runrttasks21:37:491
1226315991714,2cyclictest1646499-21head00:11:121
1226315991714,2cyclictest1619930-21grep23:56:031
1226315991714,2cyclictest1575784-21irqcore23:26:071
1226315991714,2cyclictest1513329-21grep22:41:151
1226315991714,2cyclictest1306-21mta-sts-daemon23:54:591
1226315991714,2cyclictest1306-21mta-sts-daemon23:54:591
1226315991714,2cyclictest1232391-21munin-node20:22:181
1226315991714,2cyclictest0-21swapper/121:50:011
1226315991714,2cyclictest0-21swapper/100:25:021
1226315991713,3cyclictest1440982-21kworker/u16:2+nfsiod22:05:421
1226315991713,2cyclictest69250irq/121-eno122:46:101
1226315991713,2cyclictest69250irq/121-eno100:01:041
122631499179,1cyclictest69250irq/121-eno121:46:080
122631499178,5cyclictest1301807-21tail20:11:020
122631499177,5cyclictest0-21swapper/023:56:030
122631499177,2cyclictest0-21swapper/022:26:050
122631499176,8cyclictest1683111-21kthreadcore00:36:090
122631499175,8cyclictest1614268-21cut23:51:090
122631499175,8cyclictest1614268-21cut23:51:090
1226314991714,2cyclictest1589050-21/usr/sbin/munin23:35:010
1226314991714,2cyclictest1558031-21grep23:11:150
1226314991714,2cyclictest1500239-21systemd22:35:020
1226314991714,2cyclictest1470302-21cron22:15:010
1226314991714,2cyclictest1374553-21munin-run21:10:020
1226314991714,2cyclictest1233037-21/usr/sbin/munin19:15:030
1226314991712,4cyclictest1534309-21kthreadcore22:56:100
1226314991710,6cyclictest0-21swapper/021:51:090
3240591161,5phc2sys0-21swapper/321:49:463
3240591160,3phc2sys0-21swapper/321:34:043
3240591160,2phc2sys0-21swapper/323:16:453
3240591160,2phc2sys0-21swapper/323:09:353
3240591160,2phc2sys0-21swapper/323:00:333
3240591160,2phc2sys0-21swapper/300:00:143
3240591160,1phc2sys0-21swapper/322:30:523
12382222160,2sleep30-21swapper/319:16:103
122631699161,7cyclictest0-21swapper/221:10:022
122631699161,6cyclictest0-21swapper/200:40:022
1226316991614,1cyclictest0-21swapper/221:40:022
1226316991614,1cyclictest0-21swapper/220:50:022
1226316991613,1cyclictest0-21swapper/223:05:002
1226316991613,1cyclictest0-21swapper/222:46:052
1226316991613,1cyclictest0-21swapper/221:51:022
1226316991613,1cyclictest0-21swapper/221:26:112
1226316991613,1cyclictest0-21swapper/200:34:342
1226315991613,2cyclictest1477847-21latency_hist22:20:021
1226315991613,2cyclictest1477847-21latency_hist22:20:021
1226315991613,2cyclictest1439109-21phc2sys-jitter21:51:121
1226315991613,2cyclictest1408302-21kthreadcore21:31:101
1226315991613,2cyclictest1350076-21apt-key20:50:021
1226315991613,2cyclictest1306-21mta-sts-daemon22:14:091
1226315991613,2cyclictest1295925-21cpuspeed_turbos20:06:041
1226315991613,2cyclictest1282181-21strings19:51:121
1226315991613,2cyclictest1232281-21latency_hist19:15:021
1226315991613,2cyclictest0-21swapper/123:16:051
1226315991611,3cyclictest1441600-21/usr/sbin/munin21:56:151
1226315991610,4cyclictest1309-21mta-sts-daemon21:22:511
122631499169,6cyclictest1450153-21irqrtprio22:01:070
122631499167,8cyclictest0-21swapper/019:36:020
122631499166,5cyclictest1590368-21tr23:36:050
122631499162,12cyclictest1265333-21apt-get19:41:020
122631499161,8cyclictest1309-21mta-sts-daemon00:34:260
1226314991613,2cyclictest759-1atopacctd19:21:090
1226314991612,3cyclictest1300-21mta-sts-daemon21:25:440
1226314991611,4cyclictest1345584-21kthreadcore20:46:070
122631499160,2cyclictest1353932-21cut20:51:090
122631499160,11cyclictest1479708-21kthreadcore22:21:090
3240591150,3phc2sys0-21swapper/321:29:173
3240591150,2phc2sys0-21swapper/323:51:073
3240591150,2phc2sys0-21swapper/323:51:073
3240591150,2phc2sys0-21swapper/322:13:193
3240591150,2phc2sys0-21swapper/320:51:043
3240591150,2phc2sys0-21swapper/300:13:003
3240591150,1phc2sys0-21swapper/323:41:353
3240591150,1phc2sys0-21swapper/300:30:373
122631699151,4cyclictest0-21swapper/220:20:022
1226316991513,1cyclictest0-21swapper/219:15:032
1226316991512,2cyclictest0-21swapper/222:16:112
1226316991512,2cyclictest0-21swapper/222:16:112
1226316991512,1cyclictest0-21swapper/223:24:242
1226316991512,1cyclictest0-21swapper/223:05:062
1226316991512,1cyclictest0-21swapper/222:56:042
1226316991512,1cyclictest0-21swapper/222:21:052
1226316991512,1cyclictest0-21swapper/222:14:442
1226316991512,1cyclictest0-21swapper/222:01:012
1226316991512,1cyclictest0-21swapper/221:33:202
1226316991512,1cyclictest0-21swapper/221:10:512
1226316991512,1cyclictest0-21swapper/219:55:012
1226316991512,1cyclictest0-21swapper/219:48:082
1226316991512,1cyclictest0-21swapper/219:25:012
1226316991512,1cyclictest0-21swapper/200:21:062
1226316991511,2cyclictest0-21swapper/200:04:432
1226315991512,2cyclictest1640963-21latency_hist00:10:011
1226315991512,2cyclictest1596693-21systemd-run23:40:021
1226315991512,2cyclictest1552237-21sh23:10:021
1226315991512,2cyclictest1531772-21kthreadcore22:56:101
1226315991512,2cyclictest1503614-21kthreadcore22:36:081
1226315991512,2cyclictest1479790-21kthreadcore22:21:081
1226315991512,2cyclictest1309-21mta-sts-daemon23:10:381
1226315991512,2cyclictest1307-21mta-sts-daemon21:27:201
1226315991512,2cyclictest1289146-21idleruntime-cro20:00:011
1226315991512,2cyclictest1234318-21kthreadcore19:15:041
1226315991512,2cyclictest0-21swapper/100:35:021
1226315991511,3cyclictest1651870-21kthreadcore00:16:081
1226315991510,4cyclictest11574-21rtkit-daemon21:08:121
1226315991510,3cyclictest1451848-21kthreadcore22:01:091
1226315991510,3cyclictest1375007-21/usr/sbin/munin21:11:081
1226315991510,2cyclictest1300-21mta-sts-daemon20:11:121
122631499158,5cyclictest0-21swapper/021:21:080
122631499156,4cyclictest1247313-21tail19:26:040
122631499153,7cyclictest1662849-21diskmemload00:24:140
122631499151,9cyclictest1319925-21aten2.4-expect20:26:010
1226314991512,2cyclictest1500731-21aten_repower_po22:36:020
1226314991512,2cyclictest1362484-21cut21:00:030
1226314991512,2cyclictest1362484-21cut21:00:030
1226314991512,2cyclictest1337717-21wc20:40:010
1226314991512,2cyclictest1313645-21sh20:20:020
1226314991512,2cyclictest1298438-21kthreadcore20:06:100
1226314991512,2cyclictest1289689-21aten_repower_po20:01:020
1226314991511,2cyclictest0-21swapper/019:10:020
3240591144,2phc2sys0-21swapper/323:00:023
3240591140,2phc2sys0-21swapper/320:10:013
3240591140,2phc2sys0-21swapper/300:06:163
3240591140,12phc2sys0-21swapper/323:10:503
122631699141,5cyclictest0-21swapper/223:41:002
1226316991412,1cyclictest0-21swapper/223:35:032
1226316991412,1cyclictest0-21swapper/220:40:022
1226316991412,1cyclictest0-21swapper/219:31:022
1226316991412,1cyclictest0-21swapper/219:16:112
1226316991411,1cyclictest0-21swapper/222:36:082
1226316991411,1cyclictest0-21swapper/222:30:482
1226316991411,1cyclictest0-21swapper/222:06:352
1226316991411,1cyclictest0-21swapper/221:47:502
1226316991411,1cyclictest0-21swapper/221:05:012
1226316991411,1cyclictest0-21swapper/221:05:012
1226316991411,1cyclictest0-21swapper/220:56:112
1226316991411,1cyclictest0-21swapper/220:56:112
1226316991411,1cyclictest0-21swapper/220:31:072
1226316991411,1cyclictest0-21swapper/220:11:022
1226316991411,1cyclictest0-21swapper/219:40:012
1226316991411,1cyclictest0-21swapper/219:26:112
1226316991411,1cyclictest0-21swapper/200:16:562
1226316991411,1cyclictest0-21swapper/200:11:032
1226316991410,2cyclictest0-21swapper/223:51:102
1226316991410,2cyclictest0-21swapper/223:51:102
1226316991410,2cyclictest0-21swapper/221:15:142
122631599142,4cyclictest1306-21mta-sts-daemon20:30:251
1226315991412,1cyclictest1261076-21kthreadcore19:36:081
1226315991411,2cyclictest1385311-21kthreadcore21:16:091
1226315991411,2cyclictest1358279-21kthreadcore20:56:091
1226315991411,2cyclictest1358279-21kthreadcore20:56:091
1226315991411,2cyclictest1332386-21cstates20:36:051
1226315991411,2cyclictest1226312-21cyclictest19:46:081
1226315991411,2cyclictest1202172-21kworker/u16:1-events_unbound19:30:011
1226315991410,3cyclictest1667398-21kthreadcore00:26:091
1226315991410,3cyclictest1538454-21ssh23:01:061
1226315991410,3cyclictest1353993-21kthreadcore20:51:091
1226315991410,3cyclictest1291291-21kthreadcore20:01:081
122631499147,6cyclictest0-21swapper/019:15:040
122631499147,5cyclictest268-21systemd-journal21:17:000
1226314991411,2cyclictest1340718-21kthreadcore20:41:080
1226314991411,2cyclictest1318575-21nfs4_client20:21:110
1226314991411,2cyclictest1284184-21gltestperf19:56:050
1226314991411,2cyclictest0-21swapper/023:20:030
1226314991410,3cyclictest1279851-21kthreadcore19:51:100
1226314991410,3cyclictest1255877-21kthreadcore19:31:090
3240591138,2phc2sys0-21swapper/300:16:073
3240591130,3phc2sys0-21swapper/321:11:013
3240591130,3phc2sys0-21swapper/300:24:043
3240591130,2phc2sys0-21swapper/322:42:553
3240591130,2phc2sys0-21swapper/319:41:123
122631699131,5cyclictest0-21swapper/223:56:002
1226316991311,1cyclictest0-21swapper/221:44:232
1226316991311,1cyclictest0-21swapper/220:45:032
1226316991311,1cyclictest0-21swapper/220:20:442
1226316991311,1cyclictest0-21swapper/219:45:022
1226316991310,2cyclictest0-21swapper/223:14:462
1226316991310,1cyclictest0-21swapper/222:51:092
1226316991310,1cyclictest0-21swapper/222:40:232
1226316991310,1cyclictest0-21swapper/221:20:362
1226316991310,1cyclictest0-21swapper/220:06:102
1226316991310,1cyclictest0-21swapper/219:57:032
1226316991310,1cyclictest0-21swapper/200:29:452
1226315991310,2cyclictest676-21mta-sts-daemon20:41:031
1226315991310,2cyclictest1300-21mta-sts-daemon19:21:031
1226315991310,2cyclictest1254839-21kthreadcore19:31:081
3240591123,2phc2sys0-21swapper/322:02:113
3240591120,2phc2sys0-21swapper/322:53:263
3240591120,2phc2sys0-21swapper/322:20:303
3240591120,2phc2sys0-21swapper/321:51:533
3240591120,2phc2sys0-21swapper/321:15:463
3240591120,2phc2sys0-21swapper/320:46:073
3240591120,1phc2sys0-21swapper/321:35:223
3240591120,1phc2sys0-21swapper/321:08:363
122631699124,4cyclictest0-21swapper/220:26:012
1226316991210,1cyclictest0-21swapper/220:51:102
1157598120,8rtkit-daemon676-21mta-sts-daemon19:06:571
3240591111,2phc2sys0-21swapper/323:31:083
3240591111,2phc2sys0-21swapper/321:59:223
3240591111,2phc2sys0-21swapper/320:36:063
3240591110,2phc2sys0-21swapper/322:26:403
3240591110,2phc2sys0-21swapper/322:19:323
3240591110,2phc2sys0-21swapper/322:19:323
3240591110,2phc2sys0-21swapper/319:56:033
3240591110,2phc2sys0-21swapper/319:51:023
3240591110,1phc2sys0-21swapper/323:46:473
3240591110,1phc2sys0-21swapper/321:02:273
3240591110,1phc2sys0-21swapper/321:02:273
3240591110,1phc2sys0-21swapper/320:33:413
3240591110,1phc2sys0-21swapper/320:11:293
3240591110,1phc2sys0-21swapper/320:05:013
3240591110,1phc2sys0-21swapper/300:28:403
3240591101,2phc2sys0-21swapper/323:25:073
3240591101,2phc2sys0-21swapper/321:20:233
3240591100,2phc2sys0-21swapper/323:55:303
3240591100,2phc2sys0-21swapper/323:36:223
3240591100,2phc2sys0-21swapper/320:16:023
3240591100,2phc2sys0-21swapper/319:46:013
3240591100,2phc2sys0-21swapper/300:38:143
3240591100,1phc2sys0-21swapper/320:44:073
15153072100,2sleep30-21swapper/322:45:513
122631699108,1cyclictest0-21swapper/219:10:022
324059191,2phc2sys0-21swapper/319:21:083
324059190,3phc2sys0-21swapper/319:11:103
324059190,2phc2sys0-21swapper/323:20:143
324059190,2phc2sys0-21swapper/320:56:023
324059190,2phc2sys0-21swapper/320:56:023
324059190,2phc2sys0-21swapper/320:21:033
324059190,2phc2sys0-21swapper/319:36:073
324059190,2phc2sys0-21swapper/319:26:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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