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2026-08-08 - 13:59
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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 Sat Aug 08, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
101322021030,2sleep01013196-21ssh23:10:430
9584132520,2sleep11307-21mta-sts-daemon22:35:371
680613992926,2cyclictest798508-21latency_hist20:45:011
680613992920,8cyclictest686918-21forks19:15:021
680613992622,3cyclictest1119508-21sh00:25:011
680613992618,7cyclictest1134302-21cron00:35:001
680613992617,8cyclictest836632-21grep21:15:021
680613992617,8cyclictest836632-21grep21:15:021
680608992515,6cyclictest869827-21kthreadcore21:35:400
680608992414,6cyclictest0-21swapper/021:25:010
680613992313,9cyclictest672-21polkitd22:50:021
680613992310,5cyclictest268-21systemd-journal21:35:011
68061399229,3cyclictest0-21swapper/121:45:391
680613992214,3cyclictest1045189-21cpuspeed_turbos23:35:331
680613992213,8cyclictest948004-21latency_hist22:30:011
680613992213,8cyclictest706318-21proc_pri19:25:421
680613992213,8cyclictest1120330-21cstates00:25:321
680613992213,8cyclictest1000786-21tr23:05:331
680613992212,9cyclictest1024121-21kthreadcore23:20:371
680613992212,8cyclictest1052751-21cstates23:40:331
680608992219,2cyclictest836583-21sh21:15:020
680608992219,2cyclictest836583-21sh21:15:020
680608992219,2cyclictest1082034-21savelog00:00:020
68061399219,2cyclictest0-21swapper/122:00:381
680613992115,5cyclictest827424-21cut21:05:391
680613992113,7cyclictest774439-21cut20:25:021
680613992113,7cyclictest0-21swapper/123:30:021
680613992112,8cyclictest764696-21kthreadcore20:15:401
680613992111,2cyclictest1064503-21kthreadcore23:45:431
680613992110,3cyclictest715386-21kthreadcore19:35:381
680608992111,5cyclictest1017824-21kthreadcore23:15:380
680608992111,5cyclictest0-21swapper/023:30:030
680608992110,6cyclictest0-21swapper/020:10:160
680608992110,6cyclictest0-21swapper/000:05:420
1157598210,4rtkit-daemon1309-21mta-sts-daemon22:52:581
7506122200,3sleep30-21swapper/320:05:343
680617992018,1cyclictest0-21swapper/223:30:022
68061399206,3cyclictest0-21swapper/123:13:471
68061399205,5cyclictest778150-21cut20:25:391
680613992017,2cyclictest1102603-21tr00:10:411
68061399201,3cyclictest1067148-21apt-get23:50:151
680613992011,2cyclictest953257-21head22:30:401
680613992011,2cyclictest0-21swapper/100:40:021
680613992010,9cyclictest725918-21latency_hist19:45:021
680613992010,9cyclictest696959-21kthreadcore19:20:371
680613992010,9cyclictest1106382-21kthreadcore00:15:381
680613992010,3cyclictest968177-21latency22:40:391
680613992010,3cyclictest746995-21kthreadcore20:00:371
680613992010,2cyclictest874442-21aten2.4-expect21:40:231
680613992010,2cyclictest803208-21kthreadcore20:45:391
68060899209,6cyclictest0-21swapper/023:30:380
680608992017,2cyclictest0-21swapper/021:20:030
680608992010,5cyclictest0-21swapper/023:40:160
1157598200,3rtkit-daemon1306-21mta-sts-daemon23:15:101
9299842190,2sleep00-21swapper/022:15:400
680617991917,1cyclictest0-21swapper/200:10:022
680617991916,1cyclictest0-21swapper/222:30:012
680617991916,1cyclictest0-21swapper/200:30:262
68061399199,3cyclictest915714-21kthreadcore22:05:401
68061399199,2cyclictest896063-21ssh21:55:011
68061399199,2cyclictest0-21swapper/122:15:451
68061399198,3cyclictest899477-21kthreadcore21:55:381
68061399195,5cyclictest709582-21cut19:30:371
680613991913,5cyclictest759-1atopacctd00:00:381
680613991912,6cyclictest664-21dbus-daemon20:00:011
680613991911,7cyclictest758350-21kthreadcore20:10:381
680613991910,8cyclictest986869-21irqrtprio22:55:361
680613991910,2cyclictest922708-21kthreadcore22:10:391
680613991910,2cyclictest781902-21kthreadcore20:30:381
680613991910,2cyclictest735563-21kthreadcore19:50:391
680613991910,2cyclictest0-21swapper/123:55:331
680613991910,2cyclictest0-21swapper/122:25:031
68060899195,3cyclictest0-21swapper/021:46:370
680608991916,2cyclictest719765-21latency_hist19:40:020
680608991916,2cyclictest10930-21cron23:50:010
3240591190,2phc2sys0-21swapper/300:16:283
680617991816,1cyclictest0-21swapper/222:45:042
680617991815,1cyclictest0-21swapper/223:05:022
680617991814,2cyclictest0-21swapper/219:40:012
680617991814,1cyclictest0-21swapper/223:40:162
68061399189,2cyclictest845790-21irqrtprio21:20:371
68061399189,2cyclictest672-21polkitd19:10:031
68061399188,3cyclictest1300-21mta-sts-daemon21:35:131
68061399185,5cyclictest816024-21grep20:55:441
68061399185,5cyclictest788265-21cut20:35:391
68061399185,5cyclictest751147-21cat20:05:371
68061399185,3cyclictest0-21swapper/123:30:371
68061399185,2cyclictest11systemd20:55:011
680613991811,2cyclictest715-21wpa_supplicant19:45:351
680613991810,2cyclictest693546-21kthreadcore19:15:411
680608991815,2cyclictest951266-21kthreadcore22:30:380
680608991815,2cyclictest897986-21kthreadcore21:55:370
680608991815,2cyclictest1068530-21irqstats23:50:360
680608991815,2cyclictest0-21swapper/022:45:030
680608991810,4cyclictest1000812-21cstates23:05:330
680608991810,4cyclictest0-21swapper/021:10:030
3240591180,4phc2sys0-21swapper/323:03:103
680617991715,1cyclictest0-21swapper/221:45:022
680617991715,1cyclictest0-21swapper/220:50:022
680617991715,1cyclictest0-21swapper/219:15:022
680617991714,1cyclictest0-21swapper/222:20:312
680617991714,1cyclictest0-21swapper/221:36:002
68061399179,2cyclictest1300-21mta-sts-daemon23:00:291
68061399178,8cyclictest0-21swapper/121:20:011
68061399178,2cyclictest856937-21latency21:25:401
68060899178,8cyclictest1306-21mta-sts-daemon22:36:530
68060899178,3cyclictest1112448-21ssh00:20:160
68060899177,5cyclictest0-21swapper/023:25:020
68060899176,6cyclictest0-21swapper/021:25:400
680608991714,2cyclictest985343-21sh22:55:020
680608991714,2cyclictest807712-21kthreadcore20:50:380
680608991714,2cyclictest0-21swapper/022:50:020
680608991714,2cyclictest0-21swapper/000:05:020
680608991710,6cyclictest1306-21mta-sts-daemon19:30:430
68060899170,2cyclictest689186-21/usr/sbin/munin19:15:380
3240591170,2phc2sys0-21swapper/323:12:443
3240591170,2phc2sys0-21swapper/322:51:123
3240591170,2phc2sys0-21swapper/321:29:023
3240591170,2phc2sys0-21swapper/300:03:183
68061799162,8cyclictest0-21swapper/222:05:162
680617991614,1cyclictest0-21swapper/222:15:392
680617991613,1cyclictest0-21swapper/223:55:322
680617991613,1cyclictest0-21swapper/221:30:352
680617991613,1cyclictest0-21swapper/221:05:022
680617991613,1cyclictest0-21swapper/200:26:252
680617991612,1cyclictest0-21swapper/219:50:002
68061399169,6cyclictest1306-21mta-sts-daemon21:00:351
68060899166,8cyclictest754438-21tr20:05:400
68060899166,5cyclictest0-21swapper/022:05:350
680608991613,2cyclictest992807-21sh23:00:020
680608991613,2cyclictest774209-21munin-run20:25:010
680608991613,2cyclictest759-1atopacctd23:35:380
680608991613,2cyclictest714-21gdbus19:45:080
680608991613,2cyclictest696149-21tail19:20:350
680608991613,2cyclictest664-21dbus-daemon22:30:010
680608991613,2cyclictest1125530-21sh00:26:060
680608991613,2cyclictest0-21swapper/021:45:020
680608991613,2cyclictest0-21swapper/021:05:030
680608991612,3cyclictest892796-21kthreadcore21:50:390
680608991612,3cyclictest1098976-21kthreadcore00:10:370
680608991612,2cyclictest768326-21latency_hist20:20:020
680608991612,2cyclictest0-21swapper/019:15:010
680608991611,4cyclictest11561-21sendmail-mta20:37:000
680608991611,4cyclictest1105590-21df00:15:330
68060899160,4cyclictest1134305-21idleruntime-cro00:35:000
3240591161,5phc2sys0-21swapper/321:20:163
3240591160,5phc2sys0-21swapper/323:50:153
3240591160,2phc2sys0-21swapper/323:42:423
68061799156,4cyclictest0-21swapper/220:05:172
68061799155,5cyclictest0-21swapper/220:55:172
680617991513,1cyclictest0-21swapper/200:10:372
680617991512,1cyclictest0-21swapper/223:20:352
680617991512,1cyclictest0-21swapper/222:57:082
680617991512,1cyclictest0-21swapper/222:40:342
680617991512,1cyclictest0-21swapper/221:55:382
680617991512,1cyclictest0-21swapper/221:53:332
680617991512,1cyclictest0-21swapper/221:20:012
680617991512,1cyclictest0-21swapper/220:53:402
680617991512,1cyclictest0-21swapper/220:35:462
680617991512,1cyclictest0-21swapper/220:29:162
680617991512,1cyclictest0-21swapper/219:30:352
680617991512,1cyclictest0-21swapper/200:22:002
680617991511,2cyclictest0-21swapper/223:10:152
680617991511,2cyclictest0-21swapper/222:10:292
680617991511,2cyclictest0-21swapper/200:35:112
68061399156,5cyclictest1309-21mta-sts-daemon00:09:291
68060899158,6cyclictest0-21swapper/022:10:340
680608991513,1cyclictest737832-21cut19:55:010
680608991512,2cyclictest759-1atopacctd00:39:160
680608991512,2cyclictest704240-21kthreadcore19:25:390
680608991511,3cyclictest993773-21gltestperf23:00:350
680608991511,3cyclictest1300-21mta-sts-daemon22:21:050
3240591151,4phc2sys0-21swapper/322:10:163
3240591151,3phc2sys0-21swapper/322:25:153
3240591151,3phc2sys0-21swapper/300:10:153
3240591150,2phc2sys0-21swapper/322:21:333
3240591150,2phc2sys0-21swapper/321:43:233
3240591150,2phc2sys0-21swapper/320:20:213
3240591150,1phc2sys0-21swapper/322:06:233
3240591150,1phc2sys0-21swapper/321:33:243
680617991412,1cyclictest0-21swapper/223:30:192
680617991412,1cyclictest0-21swapper/222:33:572
680617991412,1cyclictest0-21swapper/221:05:332
680617991412,1cyclictest0-21swapper/219:25:022
680617991411,2cyclictest0-21swapper/221:45:452
680617991411,1cyclictest0-21swapper/223:47:382
680617991411,1cyclictest0-21swapper/223:36:222
680617991411,1cyclictest0-21swapper/222:50:342
680617991411,1cyclictest0-21swapper/221:25:152
680617991411,1cyclictest0-21swapper/221:20:402
680617991411,1cyclictest0-21swapper/220:40:422
680617991411,1cyclictest0-21swapper/220:15:002
680617991411,1cyclictest0-21swapper/219:55:402
680617991411,1cyclictest0-21swapper/200:15:422
680617991410,2cyclictest0-21swapper/219:50:452
68060899148,1cyclictest191rcu_preempt20:45:160
68060899145,2cyclictest810963-21apt-get20:55:170
680608991412,1cyclictest793859-21irqrtprio20:40:370
680608991411,2cyclictest775255-21gltestperf20:25:360
680608991411,2cyclictest680603-21cyclictest22:05:020
680608991411,2cyclictest1306-21mta-sts-daemon20:30:370
680608991410,3cyclictest747000-21kthreadcore20:00:370
680608991410,3cyclictest739460-21kthreadcore19:55:380
68060899140,9cyclictest859555-21basename21:30:160
3240591141,6phc2sys0-21swapper/319:30:163
3240591141,5phc2sys0-21swapper/321:55:163
3240591141,2phc2sys0-21swapper/320:33:163
3240591140,4phc2sys0-21swapper/323:37:563
3240591140,3phc2sys0-21swapper/300:07:333
3240591140,2phc2sys0-21swapper/319:59:563
3240591140,1phc2sys0-21swapper/321:00:353
3240591140,1phc2sys0-21swapper/319:28:493
68061799135,3cyclictest0-21swapper/222:00:162
680617991311,1cyclictest0-21swapper/223:50:362
680617991311,1cyclictest0-21swapper/223:05:442
680617991311,1cyclictest0-21swapper/220:20:022
680617991311,1cyclictest0-21swapper/219:40:392
680617991311,1cyclictest0-21swapper/219:29:042
680617991311,1cyclictest0-21swapper/219:15:382
680617991310,1cyclictest0-21swapper/223:15:102
680617991310,1cyclictest0-21swapper/222:37:412
680617991310,1cyclictest0-21swapper/221:10:532
680617991310,1cyclictest0-21swapper/221:10:532
680617991310,1cyclictest0-21swapper/220:30:392
680608991310,2cyclictest1300-21mta-sts-daemon19:40:260
3240591131,5phc2sys0-21swapper/322:00:173
3240591130,3phc2sys0-21swapper/323:25:143
3240591130,3phc2sys0-21swapper/321:10:153
3240591130,3phc2sys0-21swapper/321:10:153
3240591130,2phc2sys0-21swapper/322:17:333
3240591130,2phc2sys0-21swapper/319:35:463
3240591130,1phc2sys0-21swapper/323:58:013
68061799129,1cyclictest0-21swapper/220:20:382
68061799129,1cyclictest0-21swapper/220:00:202
680617991210,1cyclictest0-21swapper/200:02:262
3240591126,3phc2sys0-21swapper/320:46:063
3240591120,3phc2sys0-21swapper/320:35:173
3240591120,3phc2sys0-21swapper/320:10:163
3240591120,2phc2sys0-21swapper/323:09:453
3240591120,2phc2sys0-21swapper/320:04:213
3240591120,2phc2sys0-21swapper/300:38:343
3240591120,2phc2sys0-21swapper/300:31:243
68061799119,1cyclictest0-21swapper/219:10:022
3240591112,2phc2sys0-21swapper/323:45:463
3240591111,2phc2sys0-21swapper/320:55:163
3240591111,2phc2sys0-21swapper/320:50:153
3240591111,2phc2sys0-21swapper/319:05:373
3240591110,3phc2sys0-21swapper/300:21:523
3240591110,2phc2sys0-21swapper/323:30:153
3240591110,2phc2sys0-21swapper/323:22:063
3240591110,2phc2sys0-21swapper/322:46:473
3240591110,2phc2sys0-21swapper/319:20:163
3240591110,1phc2sys0-21swapper/320:17:023
3240591110,1phc2sys0-21swapper/319:50:253
3240591110,1phc2sys0-21swapper/319:46:323
3240591105,1phc2sys0-21swapper/321:48:433
3240591101,3phc2sys0-21swapper/321:15:163
3240591101,2phc2sys0-21swapper/323:15:443
3240591101,2phc2sys0-21swapper/321:35:443
3240591101,2phc2sys0-21swapper/321:09:273
3240591100,3phc2sys0-21swapper/322:40:343
3240591100,2phc2sys0-21swapper/322:55:413
3240591100,2phc2sys0-21swapper/322:32:443
3240591100,2phc2sys0-21swapper/300:25:153
3240591100,1phc2sys0-21swapper/319:16:193
1157598100,5rtkit-daemon1307-21mta-sts-daemon19:07:030
324059191,2phc2sys0-21swapper/321:50:163
324059191,2phc2sys0-21swapper/320:40:343
324059191,2phc2sys0-21swapper/320:25:033
324059191,2phc2sys0-21swapper/319:10:383
324059190,3phc2sys0-21swapper/319:40:143
324059190,2phc2sys0-21swapper/322:35:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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