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2026-08-10 - 05:40
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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 Mon Aug 10, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44208821030,2sleep30-21swapper/322:10:363
6352212810,1sleep0635219-21ssh00:21:480
4361992700,1sleep0436197-21ssh22:08:210
2367142340,3sleep1236719-21kthreadcore19:35:371
199398992312,6cyclictest0-21swapper/000:10:020
199400992219,1cyclictest0-21swapper/220:20:012
199400992219,1cyclictest0-21swapper/219:15:012
199400992212,1cyclictest0-21swapper/220:35:382
199399992219,2cyclictest466529-21cron22:30:011
199398992219,2cyclictest205440-21systemd19:15:010
199398992211,6cyclictest0-21swapper/022:50:330
5129992210,2sleep1512811-21ssh23:00:321
3240591211,1phc2sys0-21swapper/300:14:553
199399992118,2cyclictest636340-21systemd-run00:25:011
19939899219,6cyclictest0-21swapper/022:45:110
19939899219,6cyclictest0-21swapper/022:45:110
1157598210,3rtkit-daemon11574-21rtkit-daemon20:52:590
4298652200,3sleep30-21swapper/322:05:113
199400992018,1cyclictest0-21swapper/221:40:022
199400992017,1cyclictest0-21swapper/221:30:032
199399992017,2cyclictest688-21in:imuxsock22:06:331
199399992017,2cyclictest664-21dbus-daemon23:00:011
199399992017,2cyclictest451622-21apt-config22:20:011
199399992015,3cyclictest351736-21kthreadcore21:10:381
199399992014,4cyclictest1-21systemd23:50:011
199398992017,2cyclictest510815-21sh23:00:010
199398992017,2cyclictest0-21swapper/021:25:020
199398992013,2cyclictest1306-21mta-sts-daemon21:32:470
199398992010,6cyclictest419831-21latency21:55:340
199398992010,5cyclictest0-21swapper/023:50:330
199398992010,5cyclictest0-21swapper/023:40:350
199400991916,1cyclictest0-21swapper/223:05:382
199399991916,2cyclictest759-1atopacctd21:43:161
199399991916,2cyclictest664-21dbus-daemon00:35:011
199399991916,2cyclictest219341-21mailstats19:20:381
199399991916,2cyclictest207477-21kthreadcore19:15:031
199399991916,2cyclictest0-21swapper/121:30:021
199399991914,3cyclictest555875-21cpu23:30:281
19939899198,6cyclictest0-21swapper/023:45:210
19939899198,6cyclictest0-21swapper/023:15:250
199398991910,5cyclictest0-21swapper/022:25:010
3240591181,2phc2sys0-21swapper/300:21:083
199400991815,1cyclictest0-21swapper/223:54:252
199400991815,1cyclictest0-21swapper/220:35:022
19939999189,4cyclictest0-21swapper/122:55:021
199399991815,2cyclictest429772-21systemd22:05:021
199399991815,2cyclictest199396-21cyclictest00:00:031
199399991814,3cyclictest199396-21cyclictest20:35:391
199399991812,2cyclictest0-21swapper/123:30:011
199399991811,3cyclictest0-21swapper/123:40:011
199399991810,3cyclictest0-21swapper/122:20:401
19939899189,5cyclictest347818-21diskmemload23:09:580
199398991815,2cyclictest688-21in:imuxsock19:35:010
199398991815,2cyclictest347818-21diskmemload21:40:320
199398991814,2cyclictest0-21swapper/023:35:010
3240591170,2phc2sys0-21swapper/322:30:303
3240591170,2phc2sys0-21swapper/321:52:463
3240591170,1phc2sys0-21swapper/300:29:503
199400991714,1cyclictest0-21swapper/222:55:302
199400991714,1cyclictest0-21swapper/222:45:302
199400991714,1cyclictest0-21swapper/222:45:302
199400991714,1cyclictest0-21swapper/222:25:012
199400991714,1cyclictest0-21swapper/221:54:562
199400991714,1cyclictest0-21swapper/220:05:412
199400991714,1cyclictest0-21swapper/200:25:012
199400991714,1cyclictest0-21swapper/200:15:392
199400991714,1cyclictest0-21swapper/200:08:072
199400991714,1cyclictest0-21swapper/200:00:032
199400991713,2cyclictest0-21swapper/221:20:392
199400991712,3cyclictest0-21swapper/221:10:022
199400991711,3cyclictest0-21swapper/221:55:102
19939999179,3cyclictest0-21swapper/100:03:041
199399991714,2cyclictest623327-21kthreadcore00:15:341
199399991714,2cyclictest612134-21strings00:05:411
199399991714,2cyclictest533334-21systemctl23:15:021
199399991714,2cyclictest1300-21mta-sts-daemon22:35:351
199399991712,3cyclictest641602-21grep00:25:391
19939899178,2cyclictest0-21swapper/023:13:570
199398991714,2cyclictest281114-21cut20:15:020
199398991714,2cyclictest1309-21mta-sts-daemon22:40:390
199398991714,2cyclictest1307-21mta-sts-daemon21:05:030
199398991713,3cyclictest11574-21rtkit-daemon22:15:370
3240591160,1phc2sys0-21swapper/321:33:393
3240591160,1phc2sys0-21swapper/321:12:343
19940099162,4cyclictest0-21swapper/222:40:012
199400991614,1cyclictest0-21swapper/223:35:302
199400991614,1cyclictest0-21swapper/222:30:272
199400991614,1cyclictest0-21swapper/222:25:352
199400991614,1cyclictest0-21swapper/200:05:022
199400991613,1cyclictest0-21swapper/222:10:012
199400991613,1cyclictest0-21swapper/221:15:172
199400991613,1cyclictest0-21swapper/221:13:562
199400991613,1cyclictest0-21swapper/220:55:012
199400991613,1cyclictest0-21swapper/200:35:162
199400991613,1cyclictest0-21swapper/200:26:152
199400991612,2cyclictest0-21swapper/223:12:432
199399991614,1cyclictest0-21swapper/123:20:011
19939999161,3cyclictest0-21swapper/123:22:361
199399991613,2cyclictest1307-21mta-sts-daemon22:13:551
199399991613,2cyclictest1306-21mta-sts-daemon20:10:011
199399991613,2cyclictest1-21systemd21:35:361
199399991613,2cyclictest0-21swapper/121:50:011
199399991612,3cyclictest343385-21kthreadcore21:05:321
199399991612,3cyclictest338812-21kthreadcore21:00:351
19939899169,6cyclictest0-21swapper/022:01:320
19939899169,3cyclictest347818-21diskmemload21:25:140
19939899168,7cyclictest385767-21tr21:35:270
199398991614,1cyclictest414731-21dump-pmu-power21:55:000
199398991614,1cyclictest0-21swapper/020:05:000
199398991613,2cyclictest684-21systemd-logind20:20:020
199398991613,2cyclictest614743-21sh00:10:210
199398991613,2cyclictest440697-21kthreadcore22:10:340
199398991613,2cyclictest347818-21diskmemload22:33:340
199398991613,2cyclictest244472-21munin-plugin-st19:45:010
199398991613,2cyclictest208932-21gltestperf19:15:320
199398991611,4cyclictest1306-21mta-sts-daemon23:27:110
19939899160,11cyclictest400975-21ssh21:45:300
1157598160,1rtkit-daemon0-21swapper/122:31:551
3240591150,1phc2sys0-21swapper/322:39:073
19940099151,6cyclictest0-21swapper/223:30:012
19940099151,6cyclictest0-21swapper/222:00:132
199400991513,1cyclictest0-21swapper/221:50:012
199400991513,1cyclictest0-21swapper/221:45:032
199400991513,1cyclictest0-21swapper/219:25:032
199400991512,1cyclictest0-21swapper/223:41:162
199400991512,1cyclictest0-21swapper/223:16:262
199400991512,1cyclictest0-21swapper/222:12:322
199400991512,1cyclictest0-21swapper/221:05:012
199400991512,1cyclictest0-21swapper/219:50:022
199400991512,1cyclictest0-21swapper/219:19:572
199400991512,1cyclictest0-21swapper/200:10:282
199400991511,2cyclictest0-21swapper/220:10:382
199400991511,2cyclictest0-21swapper/219:30:342
199399991512,2cyclictest838-21gmain20:20:011
199399991512,2cyclictest592210-21latency_hist23:55:021
199399991512,2cyclictest482650-21if_enp1s022:40:311
199399991512,2cyclictest411245-21kthreadcore21:50:341
199399991512,2cyclictest360830-21mailstats21:15:401
199399991512,2cyclictest1300-21mta-sts-daemon21:30:541
199399991511,3cyclictest418214-21kthreadcore21:55:331
199399991511,3cyclictest361497-21kworker/u16:1+nfsiod23:09:091
199399991511,3cyclictest247189-21kthreadcore19:45:341
199399991511,3cyclictest229738-21kthreadcore19:30:341
199399991511,3cyclictest208922-21gltestperf19:15:321
199399991510,4cyclictest619677-21kworker/u16:2+nfsiod00:13:391
199399991510,4cyclictest199396-21cyclictest19:40:361
19939899159,5cyclictest107087-21GUsbEventThread20:48:130
19939899158,3cyclictest347818-21diskmemload00:39:180
19939899158,3cyclictest347818-21diskmemload00:15:330
19939899157,7cyclictest0-21swapper/000:30:250
19939899155,5cyclictest0-21swapper/021:15:370
199398991512,2cyclictest672-21polkitd20:00:000
199398991512,2cyclictest602-17auditd21:01:300
199398991512,2cyclictest600324-21cstates00:00:360
199398991512,2cyclictest599459-1atop00:00:010
199398991512,2cyclictest541695-21gltestperf23:20:310
199398991512,2cyclictest479769-21unixbench-2d22:35:400
199398991512,2cyclictest465180-21sh22:25:530
199398991512,2cyclictest1300-21mta-sts-daemon20:30:380
199398991511,3cyclictest317566-21kworker/u16:2+nfsiod23:39:540
199398991510,4cyclictest205693-21munin-node20:39:060
19939899150,11cyclictest355015-21ssh21:14:300
3240591144,1phc2sys0-21swapper/323:39:563
3240591141,6phc2sys0-21swapper/322:25:123
3240591140,3phc2sys0-21swapper/322:46:483
3240591140,3phc2sys0-21swapper/322:46:483
3240591140,3phc2sys0-21swapper/321:45:133
3240591140,3phc2sys0-21swapper/300:04:283
3240591140,2phc2sys0-21swapper/323:43:203
3240591140,2phc2sys0-21swapper/322:56:213
3240591140,2phc2sys0-21swapper/300:37:483
3240591140,1phc2sys0-21swapper/320:55:183
19940099141,6cyclictest0-21swapper/222:40:112
199400991412,1cyclictest0-21swapper/223:45:342
199400991412,1cyclictest0-21swapper/223:00:292
199400991412,1cyclictest0-21swapper/222:53:102
199400991412,1cyclictest0-21swapper/200:30:302
199400991411,2cyclictest0-21swapper/223:30:352
199400991411,2cyclictest0-21swapper/219:50:362
199400991411,1cyclictest0-21swapper/223:20:222
199400991411,1cyclictest0-21swapper/222:15:362
199400991411,1cyclictest0-21swapper/220:40:362
199400991411,1cyclictest0-21swapper/220:30:012
199400991411,1cyclictest0-21swapper/220:00:382
199400991411,1cyclictest0-21swapper/219:10:012
19939999149,4cyclictest1306-21mta-sts-daemon19:28:461
19939999148,2cyclictest69250irq/121-eno100:35:361
19939999144,5cyclictest265738-21kthreadcore20:00:411
199399991411,2cyclictest571836-21kthreadcore23:40:331
199399991411,2cyclictest364807-21kthreadcore21:20:331
199399991411,2cyclictest318964-21irqrtprio20:45:321
199399991411,2cyclictest313119-21kthreadcore20:40:341
199399991411,2cyclictest289293-21kthreadcore20:20:331
199399991411,2cyclictest277656-21kthreadcore20:10:371
199399991411,2cyclictest253885-21kthreadcore19:50:351
199399991411,2cyclictest11561-21sendmail-mta20:58:461
199399991411,2cyclictest107087-21GUsbEventThread20:51:281
199399991410,3cyclictest490005-21if_enp1s0.822:45:311
199399991410,3cyclictest490005-21if_enp1s0.822:45:311
199399991410,3cyclictest301153-21kthreadcore20:30:331
19939899149,4cyclictest1307-21mta-sts-daemon20:56:330
199398991411,2cyclictest516659-21xargs23:00:390
199398991411,2cyclictest255579-21missed_timers19:50:360
199398991411,2cyclictest221900-21kthreadcore19:25:330
199398991411,2cyclictest1309-21mta-sts-daemon00:25:250
199398991411,2cyclictest0-21swapper/020:25:350
199398991410,2cyclictest0-21swapper/020:25:020
1157598140,5rtkit-daemon248271-21kthreadcore19:45:340
3240591135,1phc2sys0-21swapper/320:22:203
3240591130,2phc2sys0-21swapper/323:29:053
3240591130,2phc2sys0-21swapper/323:11:463
3240591130,2phc2sys0-21swapper/300:06:243
19940099131,6cyclictest0-21swapper/221:30:142
199400991311,1cyclictest0-21swapper/220:45:342
199400991311,1cyclictest0-21swapper/219:40:332
199400991310,1cyclictest0-21swapper/219:35:382
199399991310,2cyclictest261002-21kthreadcore19:55:361
199399991310,2cyclictest199237-21latency_hist19:10:021
199399991310,2cyclictest1307-21mta-sts-daemon20:25:371
19939899139,2cyclictest0-21swapper/019:40:020
199398991310,2cyclictest271680-21kthreadcore20:05:350
199398991310,2cyclictest199396-21cyclictest19:20:340
4445352120,7sleep30-21swapper/322:15:103
3240591121,4phc2sys0-21swapper/321:55:103
3240591120,3phc2sys0-21swapper/321:35:313
3240591120,2phc2sys0-21swapper/323:19:033
199400991210,1cyclictest0-21swapper/220:55:212
199400991210,1cyclictest0-21swapper/220:20:312
199400991210,1cyclictest0-21swapper/219:55:362
199400991210,1cyclictest0-21swapper/219:25:322
19939899125,5cyclictest315379-21cut20:40:360
199398991210,1cyclictest0-21swapper/019:10:030
3240591113,3phc2sys0-21swapper/323:55:343
3240591110,4phc2sys0-21swapper/323:05:113
3240591110,2phc2sys0-21swapper/323:30:133
3240591110,2phc2sys0-21swapper/322:40:283
3240591110,2phc2sys0-21swapper/322:04:443
3240591110,2phc2sys0-21swapper/321:17:563
3240591110,2phc2sys0-21swapper/321:00:113
3240591110,2phc2sys0-21swapper/320:48:413
3240591110,2phc2sys0-21swapper/320:25:293
3240591110,2phc2sys0-21swapper/320:05:303
3240591110,1phc2sys0-21swapper/321:22:073
3240591110,1phc2sys0-21swapper/320:42:083
3240591110,1phc2sys0-21swapper/319:49:353
3240591110,1phc2sys0-21swapper/300:17:033
3240591104,3phc2sys0-21swapper/321:27:113
3240591103,3phc2sys0-21swapper/319:35:393
3240591102,2phc2sys0-21swapper/323:02:043
3240591102,2phc2sys0-21swapper/322:20:323
3240591101,2phc2sys0-21swapper/321:41:443
3240591101,2phc2sys0-21swapper/320:00:373
3240591101,2phc2sys0-21swapper/319:20:343
3240591101,2phc2sys0-21swapper/319:05:393
3240591100,2phc2sys0-21swapper/323:47:053
3240591100,2phc2sys0-21swapper/323:20:113
3240591100,2phc2sys0-21swapper/320:15:353
3240591100,2phc2sys0-21swapper/319:40:373
3240591100,1phc2sys0-21swapper/322:50:543
3240591100,1phc2sys0-21swapper/321:07:283
3240591100,1phc2sys0-21swapper/319:15:133
3240591100,1phc2sys0-21swapper/319:13:483
324059191,3phc2sys0-21swapper/320:30:333
324059191,3phc2sys0-21swapper/320:10:153
324059191,2phc2sys0-21swapper/320:35:353
324059191,2phc2sys0-21swapper/300:30:223
324059190,2phc2sys0-21swapper/323:50:223
324059190,2phc2sys0-21swapper/319:55:323
324059190,2phc2sys0-21swapper/319:50:313
324059190,2phc2sys0-21swapper/319:30:033
324059180,2phc2sys0-21swapper/320:50:293
324059180,2phc2sys0-21swapper/319:25:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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