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2026-07-17 - 00:27
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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 Thu Jul 16, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124695521060,1sleep00-21swapper/008:46:190
12302262930,2sleep30-21swapper/308:31:193
14840682700,1sleep01484066-21ssh11:30:190
11656962310,2sleep20-21swapper/207:41:172
1125752992512,6cyclictest0-21swapper/012:30:010
1125752992421,2cyclictest664-21dbus-daemon09:10:020
1125753992320,2cyclictest1535827-21dump-pmu-power12:05:011
1125753992320,2cyclictest1439357-21grep11:00:011
1125752992320,2cyclictest1521170-21grep11:55:030
14924772220,2sleep20-21swapper/211:36:152
1125753992118,2cyclictest1365102-21latency_hist10:10:031
1125752992118,2cyclictest1238616-21systemd-run08:40:020
1125752992117,2cyclictest0-21swapper/011:00:020
1125752992112,5cyclictest1472375-21kthreadcore11:21:200
112575299209,6cyclictest0-21swapper/009:26:120
112575299208,6cyclictest0-21swapper/010:16:110
1125752992017,2cyclictest664-21dbus-daemon09:20:020
1125752992017,2cyclictest1170874-21grep07:45:020
1125752992010,6cyclictest0-21swapper/011:16:110
1125752992010,5cyclictest0-21swapper/011:40:030
3240591191,3phc2sys0-21swapper/310:13:563
1125754991917,1cyclictest0-21swapper/209:11:522
1125754991916,1cyclictest0-21swapper/211:30:012
1125752991916,2cyclictest1528385-21idleruntime-cro12:00:010
1125752991916,2cyclictest1208112-21sh08:15:020
1125752991916,2cyclictest1131912-21latency_hist07:15:020
1125752991913,5cyclictest1275201-21diskmemload09:23:480
3240591180,3phc2sys0-21swapper/310:00:023
3240591180,1phc2sys0-21swapper/311:20:383
1125754991815,1cyclictest0-21swapper/209:00:012
112575399187,7cyclictest1573064-21latency_hist12:30:001
1125753991816,1cyclictest1565763-21sh12:25:001
1125753991815,2cyclictest1521676-21aten_repower_cu11:56:111
1125753991815,2cyclictest1262788-21cron09:00:011
1125753991814,3cyclictest1387210-21sh10:25:011
1125753991813,2cyclictest69250irq/121-eno112:16:171
1125753991813,2cyclictest1307-21mta-sts-daemon11:36:071
1125752991815,2cyclictest1543277-21sh12:10:020
1125752991815,2cyclictest1372598-21systemd-run10:15:030
1125752991815,2cyclictest1189472-21apt-config08:00:010
1125752991810,4cyclictest1551424-21aten_repower_fr12:16:120
1125752991810,1cyclictest1357910-21ssh10:06:110
1125754991715,1cyclictest0-21swapper/209:05:022
1125754991715,1cyclictest0-21swapper/208:50:012
1125754991714,1cyclictest0-21swapper/212:06:182
1125754991714,1cyclictest0-21swapper/210:35:022
1125754991713,2cyclictest1476235-21turbostat11:25:012
112575399178,5cyclictest1301326-21kthreadcore09:26:191
1125753991714,2cyclictest672-21polkitd12:40:011
1125753991714,2cyclictest1505839-21idleruntime-cro11:45:011
1125753991714,2cyclictest1418454-21grep10:46:151
1125753991714,2cyclictest1153764-21cut07:31:171
1125753991714,2cyclictest1153764-21cut07:31:171
1125753991714,2cyclictest1133175-21kthreadcore07:15:031
1125753991714,2cyclictest0-21swapper/108:50:021
1125753991714,2cyclictest0-21swapper/108:15:011
112575299178,5cyclictest1300-21mta-sts-daemon10:40:020
112575299177,5cyclictest0-21swapper/011:41:150
1125752991714,2cyclictest1328645-21df_inode09:46:140
1125752991714,2cyclictest1269238-21gpgconf09:05:020
1125752991711,5cyclictest1479711-21kthreadcore11:26:190
1125752991711,5cyclictest1417040-21kworker/u16:0-ext4-rsv-conversion11:05:020
3240591160,2phc2sys0-21swapper/312:02:013
3240591160,1phc2sys0-21swapper/312:34:573
3240591160,1phc2sys0-21swapper/310:40:303
3240591160,1phc2sys0-21swapper/310:22:433
3240591160,1phc2sys0-21swapper/309:10:193
1125754991614,1cyclictest0-21swapper/211:31:202
1125754991614,1cyclictest0-21swapper/207:55:012
1125754991613,1cyclictest0-21swapper/212:21:112
1125754991613,1cyclictest0-21swapper/208:15:012
112575399169,3cyclictest1510134-21kthreadcore11:46:181
112575399169,3cyclictest1368272-21kthreadcore10:11:201
112575399164,7cyclictest1467547-21unixbench_multi11:16:261
1125753991613,2cyclictest1574386-21fschecks_count12:31:141
1125753991613,2cyclictest1539356-21tr12:06:201
1125753991613,2cyclictest1402453-21/usr/sbin/munin10:35:031
1125753991613,2cyclictest1394695-21systemd10:30:021
1125753991613,2cyclictest1342953-21aten_repower_en09:56:121
1125753991613,2cyclictest1338997-21kthreadcore09:51:191
1125753991613,2cyclictest1125750-21cyclictest11:31:151
1125753991613,2cyclictest0-21swapper/110:40:021
1125753991611,4cyclictest70-21kcompactd007:45:021
112575299169,5cyclictest268-21systemd-journal08:56:370
112575299167,2cyclictest0-21swapper/012:01:220
112575299166,6cyclictest0-21swapper/010:26:200
112575299165,6cyclictest0-21swapper/010:46:120
112575299165,6cyclictest0-21swapper/009:43:280
112575299163,5cyclictest1171185-21chrt07:46:120
1125752991613,2cyclictest759-1atopacctd10:31:200
1125752991613,2cyclictest1574534-21sed12:31:150
1125752991613,2cyclictest1513541-21systemd-run11:50:030
1125752991613,2cyclictest1244743-21systemd08:45:020
1125754991513,1cyclictest0-21swapper/212:35:022
1125754991513,1cyclictest0-21swapper/211:51:202
1125754991513,1cyclictest0-21swapper/210:15:022
1125754991513,1cyclictest0-21swapper/209:50:012
1125754991513,1cyclictest0-21swapper/209:30:012
1125754991513,1cyclictest0-21swapper/209:21:222
1125754991512,1cyclictest0-21swapper/212:26:102
1125754991512,1cyclictest0-21swapper/212:11:222
1125754991512,1cyclictest0-21swapper/208:25:012
1125754991512,1cyclictest0-21swapper/207:26:242
1125754991512,1cyclictest0-21swapper/207:16:472
112575399158,3cyclictest1450220-21kthreadcore11:06:181
1125753991513,1cyclictest1-21systemd10:45:011
1125753991512,2cyclictest662-21avahi-daemon09:25:021
1125753991512,2cyclictest1546754-21kthreadcore12:11:221
1125753991512,2cyclictest1515092-21grep11:51:171
1125753991512,2cyclictest1455587-21idleruntime11:11:171
1125753991512,2cyclictest1322366-21kthreadcore09:41:201
1125753991512,2cyclictest1269253-21sh09:05:021
1125753991512,2cyclictest1189249-21apt-key08:00:011
1125753991511,3cyclictest1230599-21kthreadcore08:31:201
1125753991511,3cyclictest1224621-21kthreadcore08:26:201
1125753991510,4cyclictest1076-21lldpd07:54:521
112575299159,2cyclictest1157598rtkit-daemon07:31:280
112575299159,2cyclictest1157598rtkit-daemon07:31:280
112575299157,4cyclictest1382845-21kthreadcore10:21:190
112575299154,6cyclictest0-21swapper/011:06:110
1125752991513,1cyclictest1356973-21latency_hist10:05:020
1125752991512,2cyclictest1559257-21cpuspeed12:21:110
1125752991512,2cyclictest1415616-21timerandwakeup10:41:260
1125752991512,2cyclictest1-21systemd09:10:040
1125752991512,2cyclictest1-21systemd07:37:180
1125752991512,2cyclictest1196675-21gltestperf08:06:170
1125752991512,2cyclictest1152259-21latency_hist07:30:010
1125752991512,2cyclictest1146307-21cut07:25:020
1125752991512,2cyclictest1125750-21cyclictest08:01:190
1125752991511,3cyclictest1300-21mta-sts-daemon09:55:590
1125752991511,2cyclictest0-21swapper/009:35:020
112575299150,11cyclictest1586974-21ssh12:37:250
3240591141,3phc2sys0-21swapper/307:06:103
1125754991412,1cyclictest0-21swapper/212:36:532
1125754991412,1cyclictest0-21swapper/211:08:052
1125754991412,1cyclictest0-21swapper/210:26:232
1125754991412,1cyclictest0-21swapper/210:25:032
1125754991412,1cyclictest0-21swapper/209:34:522
1125754991411,1cyclictest0-21swapper/212:20:012
1125754991411,1cyclictest0-21swapper/211:56:172
1125754991411,1cyclictest0-21swapper/210:45:192
1125754991411,1cyclictest0-21swapper/210:40:282
1125754991411,1cyclictest0-21swapper/210:36:022
1125754991411,1cyclictest0-21swapper/210:01:222
1125754991411,1cyclictest0-21swapper/208:36:162
1125754991411,1cyclictest0-21swapper/207:50:002
112575399148,5cyclictest1309-21mta-sts-daemon09:33:531
1125753991412,1cyclictest1300-21mta-sts-daemon08:51:161
1125753991412,1cyclictest1196565-21fschecks_count08:06:171
1125753991411,2cyclictest351ktimers/110:18:031
1125753991411,2cyclictest1471357-21kthreadcore11:21:181
1125753991411,2cyclictest1332204-21kthreadcore09:46:201
1125753991411,2cyclictest1318132-21needreboot09:36:221
1125753991411,2cyclictest1-21systemd09:10:031
1125753991411,2cyclictest1209472-21irqrtprio08:16:191
1125753991411,2cyclictest1195586-21latency_hist08:05:011
1125753991411,2cyclictest1174108-21kthreadcore07:46:191
1125753991411,2cyclictest1159291-21fschecks_count07:36:151
1125753991411,2cyclictest0-21swapper/111:26:241
1125753991411,2cyclictest0-21swapper/109:11:181
1125753991410,3cyclictest1300-21mta-sts-daemon09:16:481
1125753991410,3cyclictest1149797-21kthreadcore07:26:201
1125753991410,1cyclictest1306-21mta-sts-daemon11:04:431
112575299147,5cyclictest1179829-21tr07:51:170
112575299145,2cyclictest0-21swapper/008:51:110
112575299144,6cyclictest0-21swapper/008:16:150
112575299143,6cyclictest0-21swapper/010:51:130
1125752991412,1cyclictest1307-21mta-sts-daemon09:50:270
1125752991411,2cyclictest1458750-21kthreadcore11:11:200
1125752991411,2cyclictest1228865-21kthreadcore08:31:190
1125752991411,2cyclictest1220197-21cut08:25:010
1125752991411,2cyclictest0-21swapper/007:10:020
1125752991410,3cyclictest1315155-21kthreadcore09:36:190
112575299140,6cyclictest1221608-21ps08:26:180
3240591130,3phc2sys0-21swapper/310:05:493
3240591130,2phc2sys0-21swapper/309:06:113
3240591130,2phc2sys0-21swapper/308:36:143
3240591130,1phc2sys0-21swapper/312:28:203
3240591130,1phc2sys0-21swapper/311:52:493
3240591130,1phc2sys0-21swapper/310:52:323
3240591130,1phc2sys0-21swapper/310:36:053
1125754991311,1cyclictest0-21swapper/212:01:262
1125754991311,1cyclictest0-21swapper/211:41:262
1125754991311,1cyclictest0-21swapper/211:16:192
1125754991311,1cyclictest0-21swapper/211:11:162
1125754991311,1cyclictest0-21swapper/210:56:182
1125754991311,1cyclictest0-21swapper/210:16:252
1125754991311,1cyclictest0-21swapper/209:41:152
1125754991311,1cyclictest0-21swapper/209:16:252
1125754991311,1cyclictest0-21swapper/208:31:182
1125754991310,1cyclictest0-21swapper/211:00:112
1125754991310,1cyclictest0-21swapper/210:51:262
1125754991310,1cyclictest0-21swapper/210:07:262
1125754991310,1cyclictest0-21swapper/209:51:112
1125754991310,1cyclictest0-21swapper/209:06:122
1125754991310,1cyclictest0-21swapper/207:31:182
1125754991310,1cyclictest0-21swapper/207:31:182
1125754991310,1cyclictest0-21swapper/207:11:182
112575399139,3cyclictest1216078-21kthreadcore08:21:201
112575399135,2cyclictest191rcu_preempt07:10:021
112575399131,11cyclictest0-21swapper/107:25:011
1125753991310,2cyclictest1309-21mta-sts-daemon10:50:401
1125753991310,2cyclictest1309-21mta-sts-daemon10:01:141
1125753991310,2cyclictest1138778-21kthreadcore07:16:191
1125753991310,2cyclictest1125750-21cyclictest08:41:211
1125752991311,1cyclictest1548736-21missed_timers12:11:230
1125752991310,2cyclictest1134053-21gltestperf07:15:040
3240591120,7phc2sys0-21swapper/309:04:103
3240591120,1phc2sys0-21swapper/312:37:343
3240591120,1phc2sys0-21swapper/312:24:433
3240591120,1phc2sys0-21swapper/311:12:583
3240591120,1phc2sys0-21swapper/307:23:213
14447232120,4sleep30-21swapper/311:01:223
112575499129,1cyclictest0-21swapper/211:46:162
112575499129,1cyclictest0-21swapper/208:41:212
112575499129,1cyclictest0-21swapper/207:56:162
1125754991210,1cyclictest0-21swapper/209:36:212
1125754991210,1cyclictest0-21swapper/208:26:182
1125754991210,1cyclictest0-21swapper/208:16:202
1125754991210,1cyclictest0-21swapper/208:10:022
1125754991210,1cyclictest0-21swapper/208:05:022
1125754991210,1cyclictest0-21swapper/207:37:252
1125754991210,1cyclictest0-21swapper/207:21:162
112575399122,1cyclictest491rcuog/208:35:241
3240591111,2phc2sys0-21swapper/310:26:193
3240591110,4phc2sys0-21swapper/311:36:253
3240591110,2phc2sys0-21swapper/309:23:493
3240591110,1phc2sys0-21swapper/312:09:323
3240591110,1phc2sys0-21swapper/311:28:553
3240591110,1phc2sys0-21swapper/309:46:403
3240591110,1phc2sys0-21swapper/309:42:513
3240591110,1phc2sys0-21swapper/309:16:413
3240591110,1phc2sys0-21swapper/308:08:573
112575499119,1cyclictest0-21swapper/209:55:392
112575499119,1cyclictest0-21swapper/208:51:092
3240591103,1phc2sys0-21swapper/310:01:263
3240591102,2phc2sys0-21swapper/309:26:193
3240591101,3phc2sys0-21swapper/308:56:123
3240591101,2phc2sys0-21swapper/310:55:293
3240591101,2phc2sys0-21swapper/310:20:023
3240591101,2phc2sys0-21swapper/307:51:103
3240591101,1phc2sys0-21swapper/310:47:433
3240591100,2phc2sys0-21swapper/312:10:323
3240591100,2phc2sys0-21swapper/311:20:023
3240591100,2phc2sys0-21swapper/309:36:143
3240591100,2phc2sys0-21swapper/308:46:233
3240591100,2phc2sys0-21swapper/308:26:203
3240591100,2phc2sys0-21swapper/307:56:273
3240591100,2phc2sys0-21swapper/307:41:203
3240591100,1phc2sys0-21swapper/312:17:143
3240591100,1phc2sys0-21swapper/309:51:203
3240591100,1phc2sys0-21swapper/308:05:003
324059193,2phc2sys0-21swapper/311:10:023
324059191,3phc2sys0-21swapper/311:31:233
324059191,3phc2sys0-21swapper/307:46:203
324059191,2phc2sys0-21swapper/311:58:453
324059191,2phc2sys0-21swapper/311:41:423
324059191,2phc2sys0-21swapper/307:31:223
324059191,2phc2sys0-21swapper/307:31:223
324059191,2phc2sys0-21swapper/307:11:153
324059190,2phc2sys0-21swapper/311:45:593
324059190,2phc2sys0-21swapper/309:30:283
324059190,2phc2sys0-21swapper/308:12:293
324059190,2phc2sys0-21swapper/307:30:023
324059190,1phc2sys0-21swapper/310:31:203
11257549997,1cyclictest0-21swapper/207:10:022
324059181,2phc2sys0-21swapper/308:17:583
324059180,2phc2sys0-21swapper/308:51:163
324059180,2phc2sys0-21swapper/308:21:153
324059180,1phc2sys0-21swapper/308:40:143
324059180,1phc2sys0-21swapper/307:36:113
324059180,1phc2sys0-21swapper/307:15:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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