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2026-06-28 - 10:51
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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 Sun Jun 28, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239511521170,2sleep20-21swapper/221:30:032
259448221140,2sleep30-21swapper/323:45:033
264715921040,1sleep10-21swapper/100:20:041
24443032930,2sleep20-21swapper/222:05:022
24690942660,1sleep12469097-21cut22:20:041
2216003993317,10cyclictest2405661-21cstates21:39:580
26542622320,1sleep30-21swapper/300:25:033
2216003993119,7cyclictest0-21swapper/021:45:010
26767272300,2sleep20-21swapper/200:40:012
2216003992924,4cyclictest2645530-21apt-key00:20:010
2216003992923,5cyclictest660-21dbus-daemon23:55:010
2216003992916,8cyclictest0-21swapper/023:50:020
2216003992915,9cyclictest2361962-21ps21:10:000
221600399288,14cyclictest0-21swapper/023:04:550
221600399288,14cyclictest0-21swapper/023:04:550
2216004992721,2cyclictest67250irq/126-eno100:20:011
221600399269,12cyclictest0-21swapper/023:55:100
221600399269,12cyclictest0-21swapper/022:34:590
221600399268,13cyclictest0-21swapper/021:34:590
2216003992619,5cyclictest2436481-21ps22:00:030
2216003992611,11cyclictest2562572-21tail23:24:550
221600399258,12cyclictest0-21swapper/021:20:010
221600399257,13cyclictest0-21swapper/019:44:560
221600399256,2cyclictest0-21swapper/021:28:210
221600399254,3cyclictest0-21swapper/022:44:550
2216003992519,5cyclictest765-1atopacctd23:30:030
2216003992519,5cyclictest2653201-21sort00:25:020
2216003992519,5cyclictest1-21systemd23:40:030
2216003992510,11cyclictest2286711-21tail20:09:550
2216003992510,10cyclictest0-21swapper/022:09:560
221600399250,21cyclictest2552596-21ssh23:15:050
2216004992421,2cyclictest2232535-21systemd-run19:25:011
2216004992420,3cyclictest2269084-21apt19:55:001
221600499240,23cyclictest2376419-21tail21:20:001
221600399248,9cyclictest0-21swapper/022:20:040
221600399248,12cyclictest0-21swapper/021:15:020
221600399247,2cyclictest0-21swapper/000:05:020
2216003992417,6cyclictest2518566-21if_enp1s022:55:010
2216003992415,8cyclictest2593299-21ls23:45:010
2216004992320,2cyclictest2676047-21wc00:40:011
2216004992318,2cyclictest1247-21mta-sts-daemon22:30:021
221600399239,9cyclictest0-21swapper/023:30:180
221600399239,4cyclictest2216001-21cyclictest22:19:580
221600399238,5cyclictest2348765-21tail20:59:560
221600399237,4cyclictest808-21hwrng21:47:170
221600399235,2cyclictest0-21swapper/022:59:560
2216003992316,5cyclictest2507932-21mailstats22:45:080
2216003992310,2cyclictest491rcuog/200:11:340
2216005992219,1cyclictest0-21swapper/223:00:002
2216005992219,1cyclictest0-21swapper/219:15:022
2216004992212,2cyclictest492398rtkit-daemon20:42:431
2216004992212,2cyclictest492398rtkit-daemon20:42:431
2216004992210,3cyclictest0-21swapper/123:00:001
221600399228,4cyclictest2673095-21runrttasks00:36:050
221600399228,4cyclictest2478348-21ssh22:25:090
221600399226,5cyclictest0-21swapper/000:34:580
2216003992217,4cyclictest0-21swapper/019:50:010
2216003992216,5cyclictest2429326-21latency_hist21:55:020
2216003992216,5cyclictest2340332-21/usr/sbin/munin20:50:020
2216003992216,4cyclictest1237-21mta-sts-daemon20:40:010
2216005992117,2cyclictest0-21swapper/221:15:052
2216004992118,2cyclictest660-21dbus-daemon21:30:011
2216004992118,2cyclictest2541412-21cut23:10:011
2216004992118,2cyclictest2429477-21kthreadcore21:55:031
2216004992118,2cyclictest2239796-21grep19:30:001
2216004992117,3cyclictest2287967-21kthreadcore20:10:011
2216004992115,2cyclictest67250irq/126-eno121:15:001
221600399215,4cyclictest2377249-21irqrtprio21:20:030
221600399212,3cyclictest0-21swapper/022:12:350
2216003992116,4cyclictest658-21avahi-daemon19:25:010
2216003992116,4cyclictest2660274-21latency_hist00:30:010
2216003992115,5cyclictest660-21dbus-daemon20:25:010
2216003992115,5cyclictest2343485-21sh20:55:010
221600399211,3cyclictest2300473-21munin-run20:20:020
221600399210,7cyclictest2442745-21/usr/sbin/munin22:05:020
221600399210,5cyclictest2628261-21runrttasks00:05:520
492398200,2rtkit-daemon171ktimers/023:09:580
492398200,2rtkit-daemon1247-21mta-sts-daemon21:01:380
3153791201,2phc2sys0-21swapper/322:35:033
2216005992018,1cyclictest0-21swapper/221:45:022
2216005992013,3cyclictest0-21swapper/223:04:552
2216005992013,3cyclictest0-21swapper/223:04:552
221600499208,8cyclictest2616100-21cat00:00:021
221600499205,9cyclictest2637301-21cpuspeed_turbos00:14:581
2216004992018,1cyclictest2319004-21kthreadcore20:35:011
2216004992017,2cyclictest2274317-21/usr/sbin/munin20:00:021
2216004992017,2cyclictest0-21swapper/120:25:071
2216004992017,2cyclictest0-21swapper/119:20:021
2216004992011,4cyclictest2461813-21kthreadcore22:15:031
221600399203,6cyclictest0-21swapper/019:16:180
221600399203,3cyclictest0-21swapper/023:12:190
2216003992014,5cyclictest2332904-21kthreadcore20:45:030
2216003992014,5cyclictest2332904-21kthreadcore20:45:030
2216003992014,5cyclictest2312166-21idleruntime-cro20:30:010
2216003992014,5cyclictest2278232-21kthreadcore20:00:020
2216003992014,5cyclictest2242524-21kthreadcore19:30:020
3153791191,4phc2sys0-21swapper/322:04:563
3153791190,5phc2sys0-21swapper/321:29:543
2216005991917,1cyclictest0-21swapper/200:35:032
2216005991916,1cyclictest0-21swapper/223:45:032
2216005991916,1cyclictest0-21swapper/222:24:522
2216005991916,1cyclictest0-21swapper/221:09:572
2216005991915,2cyclictest0-21swapper/220:44:552
2216005991915,2cyclictest0-21swapper/220:44:552
221600499197,8cyclictest2586386-21cat23:40:021
221600499197,2cyclictest491rcuog/223:20:081
221600499195,8cyclictest2257114-21munin-run19:45:001
2216004991916,2cyclictest2511236-21/usr/sbin/munin22:50:021
2216004991916,2cyclictest2444647-21kthreadcore22:05:041
2216004991916,2cyclictest2299781-21sh20:20:011
2216004991916,2cyclictest0-21swapper/100:35:021
2216004991915,3cyclictest2262794-21gltestperf19:49:581
2216004991915,2cyclictest0-21swapper/123:55:021
2216004991912,3cyclictest765-1atopacctd21:50:001
221600399193,6cyclictest0-21swapper/020:11:180
221600399192,6cyclictest0-21swapper/020:01:180
221600399191,7cyclictest0-21swapper/019:13:180
2216003991913,5cyclictest0-21swapper/020:35:020
221600399191,2cyclictest2243705-21/usr/sbin/munin19:35:050
2216003991912,2cyclictest0-21swapper/022:40:020
3153791181,3phc2sys0-21swapper/322:24:563
3153791180,2phc2sys0-21swapper/323:48:143
3153791180,2phc2sys0-21swapper/323:05:033
3153791180,2phc2sys0-21swapper/322:15:473
2216005991816,1cyclictest0-21swapper/223:50:022
2216005991816,1cyclictest0-21swapper/222:19:562
2216005991816,1cyclictest0-21swapper/219:39:572
2216005991816,1cyclictest0-21swapper/200:07:572
2216005991815,1cyclictest0-21swapper/220:35:012
2216005991815,1cyclictest0-21swapper/219:45:002
2216005991815,1cyclictest0-21swapper/219:30:012
2216005991814,2cyclictest0-21swapper/223:10:032
2216005991814,2cyclictest0-21swapper/200:24:582
2216005991814,1cyclictest0-21swapper/223:23:152
2216005991814,1cyclictest0-21swapper/200:12:172
221600499184,5cyclictest2656959-21kthreadcore00:25:051
221600499183,9cyclictest2527992-21kthreadcore23:00:041
221600499183,9cyclictest2527992-21kthreadcore23:00:041
2216004991815,2cyclictest2406987-21kthreadcore21:40:031
2216004991815,2cyclictest2218169-21kthreadcore19:10:041
2216004991814,3cyclictest2451850-21kthreadcore22:10:021
2216004991814,3cyclictest0-21swapper/120:25:021
2216004991814,3cyclictest0-21swapper/119:35:001
2216004991811,2cyclictest67250irq/126-eno122:55:011
2216004991810,1cyclictest191rcu_preempt00:01:011
2216003991812,5cyclictest2217333-21kthreadcore19:10:030
2216003991811,6cyclictest2242632-21missed_timers19:30:030
2216003991811,2cyclictest2269152-21if_err_eno119:55:010
3153791170,2phc2sys0-21swapper/321:44:293
3153791170,2phc2sys0-21swapper/321:21:313
2216005991715,1cyclictest0-21swapper/223:40:032
2216005991715,1cyclictest0-21swapper/221:50:012
2216005991715,1cyclictest0-21swapper/221:35:032
2216005991715,1cyclictest0-21swapper/220:49:532
2216005991715,1cyclictest0-21swapper/219:50:012
2216005991715,1cyclictest0-21swapper/219:35:022
2216005991715,1cyclictest0-21swapper/200:00:022
2216005991714,1cyclictest0-21swapper/223:30:022
2216005991714,1cyclictest0-21swapper/222:33:452
2216005991714,1cyclictest0-21swapper/221:25:042
2216005991714,1cyclictest0-21swapper/221:05:012
2216005991714,1cyclictest0-21swapper/220:10:012
2216005991713,2cyclictest0-21swapper/222:36:242
221600499176,7cyclictest2356283-21sed21:05:031
221600499175,7cyclictest2412249-21diskmemload21:43:271
221600499175,6cyclictest2495972-21latency_hist22:40:011
221600499171,6cyclictest2436377-21ssh22:00:021
2216004991714,2cyclictest2549085-21systemd-run23:15:021
2216004991714,2cyclictest2398177-21cpuspeed_turbos21:34:571
2216004991714,2cyclictest2378815-21kthreadcore21:20:051
2216004991714,2cyclictest0-21swapper/123:30:011
2216004991714,2cyclictest0-21swapper/121:10:021
2216004991714,2cyclictest0-21swapper/120:50:021
2216004991713,3cyclictest2321843-21kthreadcore20:35:041
2216004991713,2cyclictest0-21swapper/121:00:031
2216004991712,1cyclictest67250irq/126-eno123:30:051
221600499171,11cyclictest2555208-21aten2.4-expect23:19:561
3153791161,6phc2sys0-21swapper/319:09:563
3153791161,3phc2sys0-21swapper/321:39:563
3153791161,3phc2sys0-21swapper/300:39:423
3153791161,2phc2sys0-21swapper/323:34:593
3153791160,2phc2sys0-21swapper/322:58:193
3153791160,2phc2sys0-21swapper/300:35:033
2216005991614,1cyclictest0-21swapper/222:49:182
2216005991614,1cyclictest0-21swapper/220:05:012
2216005991613,2cyclictest0-21swapper/222:50:112
2216005991613,1cyclictest0-21swapper/223:05:092
2216005991613,1cyclictest0-21swapper/222:09:482
2216005991613,1cyclictest0-21swapper/221:20:102
2216005991613,1cyclictest0-21swapper/220:59:562
2216005991613,1cyclictest0-21swapper/220:00:032
2216005991612,2cyclictest0-21swapper/219:55:022
2216005991612,2cyclictest0-21swapper/200:00:102
221600499161,6cyclictest2591867-21sh23:43:211
221600499161,6cyclictest2464214-21ssh22:16:271
2216004991613,2cyclictest2498295-21kthreadcore22:40:041
2216004991613,2cyclictest2488249-21fschecks_time22:34:581
2216004991613,2cyclictest2281898-21irqrtprio20:05:011
2216004991613,2cyclictest2246842-21kthreadcore19:35:041
2216004991613,2cyclictest0-21swapper/120:15:021
2216004991612,3cyclictest2341438-21pmu-power20:50:051
3153791150,5phc2sys0-21swapper/322:05:123
3153791150,2phc2sys0-21swapper/322:44:583
3153791150,2phc2sys0-21swapper/300:07:103
2216005991513,1cyclictest0-21swapper/222:26:312
2216005991513,1cyclictest0-21swapper/222:14:582
2216005991513,1cyclictest0-21swapper/221:10:032
2216005991513,1cyclictest0-21swapper/220:39:562
2216005991512,1cyclictest0-21swapper/221:56:002
2216005991512,1cyclictest0-21swapper/221:50:232
2216005991512,1cyclictest0-21swapper/220:29:572
2216005991512,1cyclictest0-21swapper/220:20:012
2216005991512,1cyclictest0-21swapper/220:14:552
2216005991511,2cyclictest0-21swapper/200:20:032
221600499152,7cyclictest2593974-21kthreadcore23:45:041
2216004991512,2cyclictest2216974-21kthreadcore19:10:031
221600499150,9cyclictest2625445-21kthreadcore00:05:041
3153791147,2phc2sys0-21swapper/321:59:113
3153791143,2phc2sys0-21swapper/322:30:023
3153791141,3phc2sys0-21swapper/323:14:543
3153791141,1phc2sys0-21swapper/322:52:343
3153791140,2phc2sys0-21swapper/323:59:563
3153791140,2phc2sys0-21swapper/320:46:463
3153791140,2phc2sys0-21swapper/320:19:243
3153791140,1phc2sys0-21swapper/323:51:573
2216005991412,1cyclictest0-21swapper/223:54:322
2216005991412,1cyclictest0-21swapper/223:32:022
2216005991412,1cyclictest0-21swapper/223:15:102
2216005991412,1cyclictest0-21swapper/220:20:042
2216005991412,1cyclictest0-21swapper/219:20:052
2216005991412,1cyclictest0-21swapper/200:25:312
2216005991411,1cyclictest0-21swapper/222:40:092
2216005991411,1cyclictest0-21swapper/220:54:572
3153791131,3phc2sys0-21swapper/319:35:043
3153791130,3phc2sys0-21swapper/319:14:563
3153791130,2phc2sys0-21swapper/319:32:433
3153791130,2phc2sys0-21swapper/300:03:303
3153791130,1phc2sys0-21swapper/321:04:133
3153791123,2phc2sys0-21swapper/320:30:023
3153791123,2phc2sys0-21swapper/319:20:023
3153791121,4phc2sys0-21swapper/300:24:563
3153791120,3phc2sys0-21swapper/321:34:563
3153791120,3phc2sys0-21swapper/300:19:563
3153791120,2phc2sys0-21swapper/322:45:263
3153791120,2phc2sys0-21swapper/319:45:023
3153791120,2phc2sys0-21swapper/319:21:223
3153791120,1phc2sys0-21swapper/321:07:533
3153791120,1phc2sys0-21swapper/320:58:203
3153791120,1phc2sys0-21swapper/320:41:293
3153791120,1phc2sys0-21swapper/320:41:293
3153791120,1phc2sys0-21swapper/320:08:023
2216005991210,1cyclictest0-21swapper/219:15:042
2216005991210,1cyclictest0-21swapper/219:10:022
3153791112,2phc2sys0-21swapper/323:25:413
3153791110,4phc2sys0-21swapper/323:19:553
3153791110,4phc2sys0-21swapper/322:39:553
3153791110,4phc2sys0-21swapper/321:50:103
3153791110,3phc2sys0-21swapper/320:10:033
3153791110,2phc2sys0-21swapper/323:23:333
3153791110,2phc2sys0-21swapper/321:46:373
3153791110,2phc2sys0-21swapper/321:18:403
3153791110,2phc2sys0-21swapper/321:13:433
3153791110,1phc2sys0-21swapper/320:50:513
3153791110,1phc2sys0-21swapper/320:22:293
23238332110,2sleep30-21swapper/320:39:563
22735072110,5sleep30-21swapper/319:55:083
3153791101,2phc2sys0-21swapper/320:00:053
3153791101,2phc2sys0-21swapper/319:28:433
3153791101,2phc2sys0-21swapper/300:13:113
3153791100,3phc2sys0-21swapper/323:37:243
3153791100,2phc2sys0-21swapper/322:10:383
3153791100,2phc2sys0-21swapper/319:54:563
315379190,2phc2sys0-21swapper/323:01:523
315379190,2phc2sys0-21swapper/323:01:523
315379190,2phc2sys0-21swapper/320:30:063
315379190,2phc2sys0-21swapper/319:45:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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