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2026-06-08 - 11:48
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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 Mon Jun 08, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283767821020,2sleep02837622-21ssh22:15:380
283767821020,2sleep02837622-21ssh22:15:380
29214962340,4sleep02921497-21/usr/sbin/munin23:15:290
28479452310,2sleep30-21swapper/322:25:303
29937952290,2sleep20-21swapper/200:05:012
2588018992817,3cyclictest2958611-21kthreadcore23:40:331
2588018992519,2cyclictest67250irq/126-eno123:50:031
2588018992515,3cyclictest765-1atopacctd21:45:021
2588018992415,2cyclictest0-21swapper/100:10:021
2588017992415,5cyclictest2943343-21gltestperf23:30:290
29755052230,1sleep12975508-21cut23:50:331
2588017992315,4cyclictest2752909-21kthreadcore21:20:320
2588018992219,2cyclictest660-21dbus-daemon21:40:021
2588017992219,2cyclictest3045169-21dump-pmu-power00:40:000
2588017992219,2cyclictest2749210-21proc_pri21:15:380
2588017992214,7cyclictest2983224-21kthreadcore23:55:350
2588017992211,6cyclictest0-21swapper/022:55:020
2588018992118,2cyclictest2614634-21latency_hist19:30:011
2588017992112,4cyclictest0-21swapper/020:55:000
2588018992017,2cyclictest2802835-21latency_hist21:55:011
2588018992016,3cyclictest0-21swapper/123:20:011
258801799209,7cyclictest2769159-21cut21:30:330
2588017992012,7cyclictest671-21polkitd23:10:010
2588017992011,8cyclictest2588015-21cyclictest21:35:280
258801899198,1cyclictest492398rtkit-daemon20:51:331
2588018991916,2cyclictest2993949-21sh00:05:021
258801799199,7cyclictest2736468-21diskmemload21:55:370
258801799199,6cyclictest2819818-21cut22:05:340
258801799199,6cyclictest2764419-21ssh21:25:520
258801799198,5cyclictest0-21swapper/000:12:100
258801799194,5cyclictest2633467-21aten2.4-expect19:45:260
2588017991915,3cyclictest2965932-21kthreadcore23:45:310
258801799191,2cyclictest2929330-21grep23:20:330
2588017991912,6cyclictest0-21swapper/022:40:010
2588017991911,7cyclictest2938123-21kthreadcore23:25:340
2588017991911,4cyclictest0-21swapper/022:30:330
2588017991911,4cyclictest0-21swapper/022:30:330
2588017991910,5cyclictest2877468-21ssh22:45:320
2588017991910,4cyclictest2620960-21aten2.4-expect19:35:260
3153791180,1phc2sys0-21swapper/321:41:513
2588019991816,1cyclictest0-21swapper/223:10:022
2588019991816,1cyclictest0-21swapper/221:55:012
2588019991815,1cyclictest0-21swapper/220:30:022
258801899188,2cyclictest67250irq/126-eno122:58:251
258801899186,2cyclictest67250irq/126-eno121:15:301
2588018991815,2cyclictest2588015-21cyclictest22:45:281
2588018991813,3cyclictest2929307-21kthreadcore23:20:341
258801799189,5cyclictest0-21swapper/023:50:340
258801799188,6cyclictest2995466-21sed00:05:330
258801799188,6cyclictest2893285-21cat22:55:340
258801799188,6cyclictest2841233-21kthreadcore22:20:320
258801799188,4cyclictest171ktimers/021:10:270
258801799187,7cyclictest2781700-21idleruntime21:40:310
258801799187,6cyclictest2657713-21aten2.4-expect20:05:270
2588017991815,2cyclictest3031592-21uniq00:30:300
2588017991814,3cyclictest2591079-21kthreadcore19:10:340
2588017991814,1cyclictest491rcuog/221:50:240
2588017991814,1cyclictest28323111systemd-run22:15:020
3153791171,1phc2sys0-21swapper/323:40:073
3153791170,1phc2sys0-21swapper/323:21:553
3153791170,1phc2sys0-21swapper/323:09:173
3153791170,1phc2sys0-21swapper/323:03:563
2588019991715,1cyclictest0-21swapper/223:20:012
2588019991714,1cyclictest0-21swapper/222:15:012
2588019991714,1cyclictest0-21swapper/219:55:012
2588019991714,1cyclictest0-21swapper/219:15:012
258801899178,1cyclictest67250irq/126-eno100:15:261
258801899171,5cyclictest2984841-21awk23:55:401
2588018991714,2cyclictest2949647-21sh23:35:021
2588018991714,2cyclictest2811344-21sh22:00:301
2588018991714,2cyclictest0-21swapper/119:45:011
258801799178,5cyclictest3018041-21tr00:20:330
258801799178,5cyclictest2901605-21ssh23:00:330
258801799177,6cyclictest2688118-21aten2.4-expect20:30:270
258801799177,6cyclictest2651762-21aten2.4-expect20:00:280
258801799176,6cyclictest2957320-21aten2.4-expect23:40:270
258801799175,8cyclictest2815718-21switchtime22:00:380
258801799174,5cyclictest2789073-21ssh21:45:280
2588017991714,2cyclictest2872064-21kthreadcore22:40:350
2588017991714,2cyclictest2721605-21kthreadcore20:55:340
2588017991714,2cyclictest2721605-21kthreadcore20:55:340
2588017991714,2cyclictest2700780-21fschecks_time20:40:300
2588017991714,2cyclictest2605523-21kthreadcore19:20:340
2588017991714,2cyclictest2587851-21latency_hist19:10:020
2588017991713,3cyclictest3026450-21kthreadcore00:25:330
2588017991713,3cyclictest2989736-21kthreadcore00:00:370
2588017991713,3cyclictest2708994-21kthreadcore20:45:330
2588017991713,3cyclictest2681601-21grep20:25:010
2588017991713,3cyclictest2648306-21kthreadcore19:55:340
2588017991713,3cyclictest2599435-21kthreadcore19:15:340
2588017991712,4cyclictest2951867-21kthreadcore23:35:320
2588017991712,4cyclictest2699085-21switchtime20:35:390
258801799170,6cyclictest3011906-21cut00:15:330
258801799170,4cyclictest2724694-21/usr/sbin/munin21:00:370
258801799170,3cyclictest0-21swapper/022:25:370
3153791160,2phc2sys0-21swapper/321:25:203
3153791160,1phc2sys0-21swapper/321:16:423
2588019991614,1cyclictest0-21swapper/222:40:022
2588019991613,1cyclictest0-21swapper/221:05:002
2588019991613,1cyclictest0-21swapper/220:40:012
258801899168,1cyclictest67250irq/126-eno122:24:431
258801899167,2cyclictest67250irq/126-eno121:24:001
258801899166,3cyclictest0-21swapper/100:21:441
258801899166,2cyclictest0-21swapper/122:28:201
258801899164,3cyclictest2913062-21cat23:10:031
258801899161,7cyclictest2668736-21python320:10:371
258801899161,7cyclictest2657327-21latency_hist20:05:031
2588018991613,2cyclictest658-21avahi-daemon19:30:371
2588018991613,2cyclictest3038088-21systemd-run00:35:021
2588018991613,2cyclictest2949960-21apt-get23:35:241
2588018991613,2cyclictest2899305-21gltestperf23:00:291
2588018991613,2cyclictest2742412-21grep21:10:401
2588018991613,2cyclictest2725432-21gltestperf21:00:301
2588018991613,2cyclictest2594169-21ps19:15:011
2588018991613,2cyclictest0-21swapper/123:10:391
2588018991613,2cyclictest0-21swapper/122:15:281
2588018991613,2cyclictest0-21swapper/122:15:281
2588018991613,2cyclictest0-21swapper/122:15:011
2588018991613,2cyclictest0-21swapper/119:40:011
2588018991612,3cyclictest3027469-21kthreadcore00:25:341
2588018991612,3cyclictest2733561-21kthreadcore21:05:331
258801899160,9cyclictest3008683-21cat00:15:011
258801799168,5cyclictest765-1atopacctd20:20:010
258801799168,4cyclictest2614891-21aten2.4-expect19:30:260
258801799167,5cyclictest0-21swapper/019:50:260
258801799167,4cyclictest2913363-21aten2.4-expect23:10:270
2588017991613,2cyclictest2732095-21kthreadcore21:05:320
2588017991613,2cyclictest2684649-21kthreadcore20:25:340
2588017991613,2cyclictest2629792-21kthreadcore19:40:330
2588017991613,2cyclictest2610099-21kthreadcore19:25:340
3153791150,3phc2sys0-21swapper/321:51:563
3153791150,1phc2sys0-21swapper/323:33:493
2588019991513,1cyclictest0-21swapper/223:59:282
2588019991513,1cyclictest0-21swapper/223:40:012
2588019991513,1cyclictest0-21swapper/222:50:362
2588019991513,1cyclictest0-21swapper/222:50:012
2588019991513,1cyclictest0-21swapper/221:45:012
2588019991513,1cyclictest0-21swapper/221:30:012
2588019991513,1cyclictest0-21swapper/221:15:302
2588019991513,1cyclictest0-21swapper/220:45:012
2588019991513,1cyclictest0-21swapper/219:35:382
2588019991513,1cyclictest0-21swapper/219:20:012
2588019991512,1cyclictest0-21swapper/221:20:322
258801899159,4cyclictest1-21systemd20:35:011
258801899159,2cyclictest492398rtkit-daemon22:33:221
258801899159,2cyclictest492398rtkit-daemon22:33:221
258801899154,3cyclictest0-21swapper/121:55:281
258801899151,7cyclictest2675488-21latency_hist20:20:021
258801899151,7cyclictest2645452-21latency_hist19:55:021
2588018991512,2cyclictest2736468-21diskmemload00:35:111
2588018991512,2cyclictest2602712-21runrttasks19:20:211
2588018991512,2cyclictest1063-21lldpd22:39:471
2588018991511,3cyclictest2660703-21kthreadcore20:05:351
2588018991510,3cyclictest2869182-21/usr/sbin/munin22:40:301
258801899150,7cyclictest2712103-21cat20:50:021
258801799150,5cyclictest2669494-21cat20:15:010
3153791140,4phc2sys0-21swapper/321:12:373
3153791140,4phc2sys0-21swapper/300:11:323
3153791140,2phc2sys0-21swapper/300:07:503
3153791140,1phc2sys0-21swapper/322:08:563
3153791140,1phc2sys0-21swapper/320:50:313
2588019991413,0cyclictest0-21swapper/221:40:012
2588019991412,1cyclictest0-21swapper/222:25:022
2588019991412,1cyclictest0-21swapper/222:05:362
2588019991412,1cyclictest0-21swapper/222:05:022
2588019991412,1cyclictest0-21swapper/221:30:332
2588019991412,1cyclictest0-21swapper/220:55:302
2588019991412,1cyclictest0-21swapper/220:55:302
2588019991412,1cyclictest0-21swapper/220:10:032
2588019991412,1cyclictest0-21swapper/219:30:002
2588019991412,1cyclictest0-21swapper/219:25:012
2588019991412,1cyclictest0-21swapper/200:16:032
2588019991412,1cyclictest0-21swapper/200:10:032
2588019991411,1cyclictest0-21swapper/223:40:332
2588019991411,1cyclictest0-21swapper/223:20:382
2588019991411,1cyclictest0-21swapper/222:25:382
2588019991411,1cyclictest0-21swapper/222:18:002
2588019991411,1cyclictest0-21swapper/222:18:002
2588019991411,1cyclictest0-21swapper/200:35:322
2588019991411,1cyclictest0-21swapper/200:20:332
258801899147,2cyclictest67250irq/126-eno122:09:411
258801899145,2cyclictest67250irq/126-eno121:30:321
258801899143,4cyclictest2639250-21cat19:50:021
258801899142,4cyclictest2788579-21aten2.4-expect21:45:261
2588018991411,2cyclictest2719909-21kthreadcore20:55:331
2588018991411,2cyclictest2719909-21kthreadcore20:55:331
2588018991411,2cyclictest2678038-21kthreadcore20:20:341
2588018991411,2cyclictest2596630-21acpi19:15:251
258801899140,6cyclictest2687640-21latency_hist20:30:031
258801899140,5cyclictest2936756-21grep23:25:321
3153791136,2phc2sys0-21swapper/319:35:013
3153791130,1phc2sys0-21swapper/323:37:543
29245742130,2sleep30-21swapper/323:15:323
2588019991311,1cyclictest0-21swapper/223:45:242
2588019991311,1cyclictest0-21swapper/223:34:182
2588019991311,1cyclictest0-21swapper/222:57:302
2588019991311,1cyclictest0-21swapper/222:40:022
2588019991311,1cyclictest0-21swapper/222:33:092
2588019991311,1cyclictest0-21swapper/222:33:092
2588019991311,1cyclictest0-21swapper/221:55:382
2588019991311,1cyclictest0-21swapper/220:45:332
2588019991311,1cyclictest0-21swapper/219:50:022
2588019991310,1cyclictest0-21swapper/223:50:272
2588019991310,1cyclictest0-21swapper/223:25:392
2588019991310,1cyclictest0-21swapper/223:10:372
2588019991310,1cyclictest0-21swapper/220:20:282
2588019991310,1cyclictest0-21swapper/220:15:142
258801999130,7cyclictest0-21swapper/200:14:152
258801899135,3cyclictest67250irq/126-eno122:50:281
258801899133,2cyclictest491rcuog/221:25:301
2588018991310,2cyclictest2702481-21kthreadcore20:40:331
2588018991310,2cyclictest2699828-21sh20:40:011
2588018991310,2cyclictest2648306-21kthreadcore19:55:331
3153791120,3phc2sys0-21swapper/323:50:463
3153791120,1phc2sys0-21swapper/323:25:203
3153791120,1phc2sys0-21swapper/321:21:353
3153791120,1phc2sys0-21swapper/319:20:293
3153791120,1phc2sys0-21swapper/300:35:413
258801999121,5cyclictest0-21swapper/220:50:262
2588019991210,1cyclictest0-21swapper/223:03:562
2588019991210,1cyclictest0-21swapper/221:45:322
2588019991210,1cyclictest0-21swapper/221:10:352
2588019991210,1cyclictest0-21swapper/220:00:282
2588019991210,1cyclictest0-21swapper/219:55:342
2588019991210,1cyclictest0-21swapper/219:40:322
2588019991210,1cyclictest0-21swapper/200:30:332
2588019991210,1cyclictest0-21swapper/200:25:322
3153791113,5phc2sys2817378-21chrt22:04:463
3153791112,1phc2sys0-21swapper/323:45:363
3153791112,1phc2sys0-21swapper/322:56:103
3153791111,3phc2sys0-21swapper/322:35:263
3153791111,2phc2sys0-21swapper/323:55:263
3153791110,2phc2sys0-21swapper/322:40:273
3153791110,2phc2sys0-21swapper/321:30:253
3153791110,2phc2sys0-21swapper/319:20:013
3153791110,2phc2sys0-21swapper/300:29:553
3153791110,1phc2sys0-21swapper/322:18:323
3153791110,1phc2sys0-21swapper/322:18:323
3153791110,1phc2sys0-21swapper/320:59:073
3153791110,1phc2sys0-21swapper/320:59:073
3153791110,1phc2sys0-21swapper/320:23:573
3153791110,1phc2sys0-21swapper/320:04:223
3153791110,1phc2sys0-21swapper/300:21:183
3153791110,1phc2sys0-21swapper/300:15:133
258801999119,1cyclictest0-21swapper/221:09:242
258801999119,1cyclictest0-21swapper/220:10:332
258801999119,1cyclictest0-21swapper/219:30:332
258801999119,1cyclictest0-21swapper/219:10:012
258801999118,1cyclictest0-21swapper/220:30:282
3153791102,1phc2sys0-21swapper/300:03:073
3153791101,2phc2sys0-21swapper/320:35:273
3153791100,2phc2sys0-21swapper/320:30:263
3153791100,2phc2sys0-21swapper/319:59:403
3153791100,2phc2sys0-21swapper/300:35:013
3153791100,1phc2sys0-21swapper/323:10:293
3153791100,1phc2sys0-21swapper/322:12:093
3153791100,1phc2sys0-21swapper/321:02:083
3153791100,1phc2sys0-21swapper/320:46:003
258801899108,1cyclictest0-21swapper/119:10:021
315379191,2phc2sys0-21swapper/322:52:303
315379191,2phc2sys0-21swapper/322:48:573
315379191,2phc2sys0-21swapper/322:33:343
315379191,2phc2sys0-21swapper/322:33:343
315379191,2phc2sys0-21swapper/321:45:403
315379191,1phc2sys0-21swapper/320:30:023
315379190,3phc2sys0-21swapper/319:45:013
315379190,2phc2sys0-21swapper/320:40:283
315379190,2phc2sys0-21swapper/320:15:283
315379190,2phc2sys0-21swapper/320:05:263
315379190,2phc2sys0-21swapper/319:50:393
315379190,2phc2sys0-21swapper/319:35:373
315379190,2phc2sys0-21swapper/319:10:393
315379190,1phc2sys0-21swapper/321:35:463
315379190,1phc2sys0-21swapper/321:05:523
315379190,1phc2sys0-21swapper/319:26:583
315379181,3phc2sys0-21swapper/320:10:263
315379180,2phc2sys0-21swapper/321:55:383
315379180,2phc2sys0-21swapper/319:45:263
315379180,1phc2sys0-21swapper/322:21:353
315379180,1phc2sys0-21swapper/319:05:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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