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2026-05-08 - 07:18
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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 Fri May 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156057621010,1sleep00-21swapper/023:51:470
15204332980,1sleep10-21swapper/123:25:261
15659192830,1sleep01565881-21ssh23:55:270
13413852440,1sleep11341386-21/usr/sbin/munin21:30:221
16010822340,2sleep10-21swapper/100:20:261
1155975992824,1cyclictest0-21swapper/221:00:012
1155973992724,2cyclictest0-21swapper/121:50:011
1155972992615,6cyclictest0-21swapper/021:10:010
1155973992421,2cyclictest1-21systemd00:20:001
1155973992320,2cyclictest1386281-21sh22:00:011
1155973992320,2cyclictest1-21systemd23:05:001
1155972992313,6cyclictest1482551-21kthreadcore23:00:260
1155975992218,2cyclictest0-21swapper/223:25:002
1155972992220,1cyclictest0-21swapper/021:40:000
1155972992216,5cyclictest1501222-21latency_hist23:15:020
383433398210,5rtkit-daemon3851704-21mta-sts-daemon22:24:150
1155975992118,1cyclictest0-21swapper/223:40:002
1155975992118,1cyclictest0-21swapper/222:35:002
1155973992113,4cyclictest1584820-21/usr/sbin/munin00:10:261
1155972992118,2cyclictest1221798-21cron20:00:000
1155972992112,8cyclictest3851703-21mta-sts-daemon23:21:230
1155972992110,6cyclictest0-21swapper/000:25:010
1155975992017,1cyclictest0-21swapper/221:55:002
1155975992016,2cyclictest0-21swapper/222:00:012
1155975992016,2cyclictest0-21swapper/221:35:022
1155973992017,2cyclictest1431921-21sh22:30:011
1155973992017,2cyclictest1-21systemd21:20:011
1155973992017,2cyclictest1162640-21systemd-run19:15:011
1155973992013,3cyclictest1418421-21kthreadcore22:20:251
115597299209,6cyclictest0-21swapper/022:55:170
115597299209,6cyclictest0-21swapper/021:45:180
1155972992017,2cyclictest1386445-21runrttasks22:00:010
1155972992011,5cyclictest1572995-21kthreadcore00:00:260
1155972992011,5cyclictest1572995-21kthreadcore00:00:260
1155972992011,5cyclictest0-21swapper/022:15:280
1155975991916,1cyclictest0-21swapper/223:05:292
1155975991916,1cyclictest0-21swapper/220:20:002
1155975991915,2cyclictest0-21swapper/222:05:262
1155973991916,2cyclictest3827634-1atopacctd21:05:021
1155973991916,2cyclictest1508570-21/usr/sbin/munin23:20:001
1155973991916,2cyclictest1332882-21gdbus21:25:011
1155973991916,2cyclictest1313815-21kthreadcore21:10:251
1155973991916,2cyclictest1313815-21kthreadcore21:10:241
1155973991915,2cyclictest0-21swapper/122:40:011
115597299193,3cyclictest16-21ksoftirqd/020:57:590
1155972991916,2cyclictest1363307-21grep21:45:010
2649091181,5phc2sys0-21swapper/320:25:183
2649091180,3phc2sys0-21swapper/321:30:013
2649091180,2phc2sys0-21swapper/322:29:343
15324722180,2sleep30-21swapper/323:35:223
1155975991815,1cyclictest0-21swapper/221:45:002
1155975991815,1cyclictest0-21swapper/220:25:012
1155973991815,2cyclictest1510237-21irqrtprio23:20:231
1155973991815,2cyclictest1196350-21cron19:40:001
115597299188,5cyclictest0-21swapper/023:40:170
115597299187,6cyclictest0-21swapper/022:30:100
1155972991815,2cyclictest1371724-21sh21:50:200
1155972991815,2cyclictest1346333-21grep21:30:330
1155972991815,2cyclictest1332593-21apt-key21:25:000
1155972991815,2cyclictest1290-21dbus-daemon22:00:320
1155972991815,2cyclictest1162501-21apt-key19:15:010
1155972991813,4cyclictest1524207-21aten_repower_fr23:30:190
1155972991810,7cyclictest0-21swapper/022:10:330
383433398170,7rtkit-daemon3851702-21mta-sts-daemon21:54:291
2649091171,3phc2sys0-21swapper/300:36:483
2649091171,2phc2sys0-21swapper/323:04:453
2649091170,3phc2sys0-21swapper/322:58:523
2649091170,3phc2sys0-21swapper/322:52:083
13698652170,2sleep20-21swapper/221:47:192
1155975991714,1cyclictest0-21swapper/223:55:312
1155975991714,1cyclictest0-21swapper/223:35:022
1155975991714,1cyclictest0-21swapper/222:55:222
1155975991714,1cyclictest0-21swapper/220:45:232
1155975991714,1cyclictest0-21swapper/220:30:252
1155975991714,1cyclictest0-21swapper/220:05:012
1155975991714,1cyclictest0-21swapper/219:55:012
1155975991714,1cyclictest0-21swapper/219:40:312
115597599171,12cyclictest0-21swapper/222:40:012
115597399179,3cyclictest0-21swapper/122:50:191
1155973991714,2cyclictest1334027-21if_err_enp1s0.821:25:241
1155973991714,2cyclictest1265938-21systemd-run20:35:011
1155973991714,2cyclictest1166248-21tr19:15:261
1155973991712,4cyclictest0-21swapper/119:10:021
115597299171,6cyclictest1425977-21uname22:25:220
1155972991714,2cyclictest3851705-21mta-sts-daemon19:30:210
1155972991714,2cyclictest1592625-21aten2.4-expect00:15:180
1155972991714,2cyclictest1-21systemd20:10:010
1155972991713,3cyclictest1210824-21kthreadcore19:50:240
115597299170,13cyclictest1195377-21strings19:35:260
2649091161,6phc2sys0-21swapper/319:05:173
2649091160,2phc2sys0-21swapper/323:43:093
2649091160,2phc2sys0-21swapper/323:13:233
2649091160,2phc2sys0-21swapper/323:06:213
2649091160,2phc2sys0-21swapper/322:02:253
2649091160,2phc2sys0-21swapper/300:22:333
1155975991613,1cyclictest0-21swapper/223:45:012
1155975991613,1cyclictest0-21swapper/222:50:002
1155975991613,1cyclictest0-21swapper/220:50:212
1155975991613,1cyclictest0-21swapper/219:30:012
1155975991613,1cyclictest0-21swapper/219:20:242
1155975991613,1cyclictest0-21swapper/200:00:212
1155975991613,1cyclictest0-21swapper/200:00:212
115597399168,3cyclictest1497526-21kthreadcore23:10:261
115597399168,3cyclictest0-21swapper/123:40:191
1155973991613,2cyclictest3851704-21mta-sts-daemon23:06:431
1155973991613,2cyclictest1577929-21cut00:05:201
1155973991613,2cyclictest1563444-21kthreadcore23:55:261
1155973991613,2cyclictest1559569-21phc2sys23:50:261
1155973991613,2cyclictest1554092-21wc23:50:001
1155973991613,2cyclictest1529377-21mailstats23:30:311
1155973991613,2cyclictest1130835-21GUsbEventThread19:24:191
1155973991613,2cyclictest0-21swapper/122:45:001
1155973991612,3cyclictest1554176-21kworker/u16:3+nfsiod00:00:261
1155973991612,3cyclictest1554176-21kworker/u16:3+nfsiod00:00:261
1155973991612,3cyclictest1267395-21kthreadcore20:35:231
115597299168,7cyclictest0-21swapper/023:30:020
115597299168,4cyclictest1502475-21ssh23:15:250
115597299166,5cyclictest0-21swapper/000:25:330
115597299161,6cyclictest0-21swapper/021:10:280
115597299161,6cyclictest0-21swapper/021:10:280
1155972991614,1cyclictest1155969-21cyclictest21:19:390
1155972991613,2cyclictest3851703-21mta-sts-daemon22:35:070
1155972991613,2cyclictest1615923-21fschecks_time00:30:200
1155972991613,2cyclictest1463017-21latency_hist22:50:010
1155972991613,2cyclictest1285648-21gltestperf20:50:220
1155972991613,2cyclictest1228218-21systemd-run20:05:000
1155972991613,2cyclictest0-21swapper/019:10:010
1155972991613,1cyclictest0-21swapper/022:45:020
1155972991612,3cyclictest3851705-21mta-sts-daemon00:07:150
1155972991611,3cyclictest0-21swapper/019:30:010
2649091150,2phc2sys0-21swapper/321:44:333
2649091150,2phc2sys0-21swapper/321:30:263
1155975991513,1cyclictest0-21swapper/222:20:212
1155975991512,2cyclictest0-21swapper/223:45:252
1155975991512,1cyclictest0-21swapper/223:10:192
1155975991512,1cyclictest0-21swapper/221:10:192
1155975991512,1cyclictest0-21swapper/221:10:192
1155975991512,1cyclictest0-21swapper/219:50:002
1155975991512,1cyclictest0-21swapper/200:32:032
1155975991512,1cyclictest0-21swapper/200:25:252
1155975991512,1cyclictest0-21swapper/200:20:332
1155975991511,2cyclictest0-21swapper/220:10:202
1155975991511,1cyclictest0-21swapper/222:10:192
1155975991510,2cyclictest0-21swapper/219:40:002
1155975991510,1cyclictest0-21swapper/222:43:482
115597399159,2cyclictest134050irq/121-eno100:25:261
1155973991512,2cyclictest3851702-21mta-sts-daemon22:03:451
1155973991512,2cyclictest3851702-21mta-sts-daemon20:00:221
1155973991512,2cyclictest1623682-21head00:35:241
1155973991512,2cyclictest1472330-21kthreadcore22:55:251
1155973991512,2cyclictest1396553-21kthreadcore22:05:251
1155973991512,2cyclictest1351329-21kthreadcore21:35:261
1155973991512,2cyclictest1326-21systemd-logind21:00:011
1155973991512,2cyclictest0-21swapper/122:15:021
1155973991512,2cyclictest0-21swapper/120:00:011
1155973991512,1cyclictest0-21swapper/119:55:021
1155973991511,3cyclictest1206099-21kthreadcore19:45:271
115597299159,5cyclictest3851703-21mta-sts-daemon20:15:300
115597299157,4cyclictest0-21swapper/000:35:210
115597299152,4cyclictest3834332-21rtkit-daemon19:21:420
1155972991513,1cyclictest0-21swapper/023:45:170
1155972991512,2cyclictest1486821-21gltestperf23:05:220
1155972991512,2cyclictest1463250-21acpi22:50:170
1155972991512,2cyclictest1303349-21cron21:05:000
1155972991511,3cyclictest1269916-21kthreadcore20:35:240
1155972991511,3cyclictest1265933-21kworker/u16:1+nfsiod21:29:310
1155972991510,4cyclictest1130835-21GUsbEventThread20:47:190
2649091140,2phc2sys0-21swapper/323:58:373
2649091140,2phc2sys0-21swapper/323:27:393
2649091140,2phc2sys0-21swapper/321:57:063
2649091140,2phc2sys0-21swapper/321:24:493
2649091140,2phc2sys0-21swapper/300:25:413
2649091140,1phc2sys0-21swapper/321:36:153
115597599141,8cyclictest0-21swapper/221:35:182
1155975991412,1cyclictest0-21swapper/223:05:012
1155975991412,1cyclictest0-21swapper/220:40:172
1155975991412,1cyclictest0-21swapper/219:30:242
1155975991411,2cyclictest0-21swapper/223:16:282
1155975991411,1cyclictest0-21swapper/223:50:212
1155975991411,1cyclictest0-21swapper/222:51:162
1155975991411,1cyclictest0-21swapper/222:25:282
1155975991411,1cyclictest0-21swapper/221:25:122
1155975991411,1cyclictest0-21swapper/220:30:002
1155975991411,1cyclictest0-21swapper/200:35:252
1155975991411,1cyclictest0-21swapper/200:10:332
1155975991410,2cyclictest0-21swapper/219:15:272
115597399149,2cyclictest134050irq/121-eno119:30:181
1155973991411,2cyclictest3851704-21mta-sts-daemon20:45:221
1155973991411,2cyclictest3851703-21mta-sts-daemon00:34:311
1155973991411,2cyclictest3840937-21lldpd21:40:091
1155973991411,2cyclictest1531681-21acpi23:35:181
1155973991411,2cyclictest1456724-21irqcore22:45:231
1155973991411,2cyclictest1437816-21/usr/sbin/munin22:30:321
1155973991411,2cyclictest1285497-21fschecks_count20:50:211
1155973991411,2cyclictest1236022-21kthreadcore20:10:241
1155973991411,2cyclictest1231967-21kthreadcore20:05:241
1155973991411,2cyclictest0-21swapper/122:15:281
1155973991411,2cyclictest0-21swapper/120:20:001
1155973991410,3cyclictest1179423-21kthreadcore19:25:251
1155973991410,2cyclictest0-21swapper/120:45:011
115597299148,5cyclictest3851705-21mta-sts-daemon20:25:210
115597299146,2cyclictest0-21swapper/022:05:220
115597299144,5cyclictest1262809-21cut20:30:250
1155972991411,2cyclictest1278329-21grep20:45:000
1155972991411,2cyclictest1252488-21switchtime20:20:290
1155972991411,2cyclictest1235602-21irqcore20:10:230
1155972991411,2cyclictest1155969-21cyclictest19:15:210
1155972991410,3cyclictest3851704-21mta-sts-daemon23:35:030
1155972991410,3cyclictest1204920-21kthreadcore19:45:260
1155972991410,3cyclictest1199644-21kthreadcore19:40:250
2649091131,5phc2sys0-21swapper/319:10:193
2649091130,2phc2sys0-21swapper/322:17:283
2649091130,2phc2sys0-21swapper/321:45:223
2649091130,2phc2sys0-21swapper/300:00:253
2649091130,2phc2sys0-21swapper/300:00:253
2649091130,1phc2sys0-21swapper/323:51:073
2649091130,1phc2sys0-21swapper/321:06:173
115597599139,2cyclictest0-21swapper/221:00:202
1155975991311,1cyclictest0-21swapper/222:03:102
1155975991311,1cyclictest0-21swapper/221:20:082
1155975991311,1cyclictest0-21swapper/220:35:222
1155975991311,1cyclictest0-21swapper/220:05:282
1155975991311,1cyclictest0-21swapper/200:09:462
1155975991310,1cyclictest0-21swapper/222:20:022
1155975991310,1cyclictest0-21swapper/221:15:202
1155975991310,1cyclictest0-21swapper/221:05:242
1155975991310,1cyclictest0-21swapper/200:16:132
115597399139,3cyclictest1250825-21kthreadcore20:20:251
1155973991311,1cyclictest3851703-21mta-sts-daemon20:29:581
1155973991310,2cyclictest1305004-21kthreadcore21:05:251
1155973991310,2cyclictest1199644-21kthreadcore19:40:251
115597299130,8cyclictest1585024-21chrt00:10:180
2649091123,2phc2sys0-21swapper/320:05:213
2649091121,3phc2sys0-21swapper/321:50:183
2649091121,3phc2sys0-21swapper/320:35:193
2649091120,2phc2sys0-21swapper/323:20:363
2649091120,2phc2sys0-21swapper/322:43:333
2649091120,2phc2sys0-21swapper/322:23:413
2649091120,2phc2sys0-21swapper/320:00:163
2649091120,1phc2sys0-21swapper/323:46:103
2649091120,1phc2sys0-21swapper/323:31:383
2649091120,1phc2sys0-21swapper/322:35:593
1155975991210,1cyclictest0-21swapper/223:25:192
1155975991210,1cyclictest0-21swapper/219:55:252
1155975991210,1cyclictest0-21swapper/219:10:262
2649091110,5phc2sys0-21swapper/319:45:193
2649091110,5phc2sys0-21swapper/300:05:173
2649091110,2phc2sys0-21swapper/322:45:173
2649091110,2phc2sys0-21swapper/322:10:223
2649091110,1phc2sys0-21swapper/321:12:103
2649091110,1phc2sys0-21swapper/321:12:103
115597599119,1cyclictest0-21swapper/219:10:022
2649091103,2phc2sys0-21swapper/300:30:263
2649091101,4phc2sys0-21swapper/320:30:173
2649091101,2phc2sys0-21swapper/322:06:573
2649091101,2phc2sys0-21swapper/320:55:183
2649091101,2phc2sys0-21swapper/320:50:173
2649091101,2phc2sys0-21swapper/320:10:263
2649091101,2phc2sys0-21swapper/300:17:093
2649091101,2phc2sys0-21swapper/300:10:203
2649091100,2phc2sys0-21swapper/321:15:313
2649091100,2phc2sys0-21swapper/321:00:203
2649091100,2phc2sys0-21swapper/319:25:183
264909192,2phc2sys0-21swapper/319:39:483
264909191,2phc2sys0-21swapper/322:30:063
264909191,2phc2sys0-21swapper/320:20:123
264909191,2phc2sys0-21swapper/320:15:193
264909191,2phc2sys0-21swapper/319:50:223
264909190,2phc2sys0-21swapper/323:15:313
264909190,2phc2sys0-21swapper/320:49:553
264909190,2phc2sys0-21swapper/320:40:163
264909190,2phc2sys0-21swapper/319:55:193
264909190,2phc2sys0-21swapper/319:40:173
264909190,2phc2sys0-21swapper/319:34:553
264909190,2phc2sys0-21swapper/319:20:253
264909190,2phc2sys0-21swapper/319:15:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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