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2025-11-14 - 10:56
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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 Fri Nov 14, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271417521650,2sleep30-21swapper/300:10:383
238262921170,2sleep30-21swapper/320:55:403
27610452710,1sleep12761046-21grep00:35:491
27449262460,1sleep02744928-21cat00:25:500
23364142240,1sleep12336415-21grep20:15:471
2251441992421,2cyclictest2521929-21grep22:20:011
2251440992415,5cyclictest1629-21avahi-daemon22:00:020
2251442992320,1cyclictest0-21swapper/220:15:022
2251441992316,3cyclictest2575447-21fschecks_count22:50:421
2251440992314,5cyclictest2696909-21aten_repower_vo00:00:380
2251440992314,5cyclictest1652-1atopacctd00:20:500
2251440992310,7cyclictest0-21swapper/021:45:360
2251441992217,3cyclictest260-21systemd-journal22:15:001
2251441992217,3cyclictest260-21systemd-journal22:15:001
2251441992216,2cyclictest170550irq/121-eno100:05:011
2251440992219,2cyclictest2591491-21sendmail23:00:000
2251440992212,5cyclictest0-21swapper/023:10:020
2251442992118,1cyclictest0-21swapper/222:35:002
2251441992113,3cyclictest2570847-21kthreadcore22:45:491
2251440992110,6cyclictest0-21swapper/022:35:000
225144299201,7cyclictest0-21swapper/222:50:012
2251442992016,2cyclictest0-21swapper/219:15:002
225144299201,5cyclictest0-21swapper/200:40:012
2251441992017,2cyclictest2565620-21latency_hist22:45:021
2251441992017,2cyclictest2565620-21latency_hist22:45:021
2251441992012,3cyclictest0-21swapper/121:50:021
225144099209,6cyclictest0-21swapper/021:10:450
2251440992017,2cyclictest2417660-21grep21:20:010
2251440992017,2cyclictest2251438-21cyclictest19:35:000
2251440992011,5cyclictest2612453-21kthreadcore23:10:450
302487291190,3phc2sys0-21swapper/322:21:513
2251442991916,1cyclictest0-21swapper/221:15:002
2251442991916,1cyclictest0-21swapper/200:10:012
2251441991916,2cyclictest2408820-21grep21:15:011
2251441991916,2cyclictest2258608-21systemd-run19:15:021
225144099199,5cyclictest0-21swapper/021:40:470
225144099198,6cyclictest0-21swapper/022:35:460
2251440991917,1cyclictest1629-21avahi-daemon23:00:350
2251440991916,2cyclictest2257488-21idleruntime-cro19:15:000
2251440991916,2cyclictest0-21swapper/022:45:010
2251440991916,2cyclictest0-21swapper/022:45:010
2251440991911,4cyclictest2251438-21cyclictest23:20:500
2251440991910,5cyclictest2750778-21kthreadcore00:30:450
302487291180,2phc2sys0-21swapper/322:08:033
302487291180,2phc2sys0-21swapper/321:37:093
302487291180,2phc2sys0-21swapper/300:23:063
2251442991816,1cyclictest0-21swapper/223:25:022
2251442991816,1cyclictest0-21swapper/220:10:022
2251442991816,1cyclictest0-21swapper/219:25:012
2251442991816,1cyclictest0-21swapper/200:00:032
225144199182,1cyclictest170550irq/121-eno122:35:381
2251441991815,2cyclictest260-21systemd-journal22:10:001
2251441991815,2cyclictest2380564-21latency20:50:471
2251441991815,2cyclictest1700-21systemd-logind19:50:021
2251441991812,2cyclictest170550irq/121-eno100:10:011
2251441991810,4cyclictest2487090-21latency_hist22:00:011
225144099187,6cyclictest0-21swapper/023:40:530
2251440991811,4cyclictest2251438-21cyclictest21:35:470
302487291170,4phc2sys0-21swapper/322:47:363
302487291170,3phc2sys0-21swapper/323:53:473
302487291170,3phc2sys0-21swapper/323:42:333
302487291170,3phc2sys0-21swapper/322:50:433
302487291170,3phc2sys0-21swapper/321:44:023
2251442991715,1cyclictest0-21swapper/222:15:002
2251442991715,1cyclictest0-21swapper/222:15:002
2251442991714,1cyclictest0-21swapper/222:55:002
2251442991714,1cyclictest0-21swapper/221:50:452
2251442991714,1cyclictest0-21swapper/219:10:002
2251442991714,1cyclictest0-21swapper/200:35:012
2251442991714,1cyclictest0-21swapper/200:25:492
225144199179,2cyclictest501rcuop/219:35:491
225144199178,4cyclictest2470354-21ssh21:50:381
2251441991714,2cyclictest2748406-21systemd-run00:30:011
2251441991714,2cyclictest2736467-21missed_timers00:20:501
2251441991714,2cyclictest2530654-21kworker/u16:1-ext4-rsv-conversion23:40:001
2251441991714,2cyclictest1704-21rs:main1
2251441991714,2cyclictest0-21swapper/123:20:001
2251441991711,2cyclictest170550irq/121-eno122:35:011
2251441991711,2cyclictest170550irq/121-eno100:11:571
225144099177,5cyclictest0-21swapper/000:15:450
225144099176,6cyclictest0-21swapper/000:36:050
2251440991714,2cyclictest2582833-21cut22:55:000
2251440991714,2cyclictest2302664-21sh19:50:010
2251440991714,2cyclictest1652-1atopacctd19:10:010
2251440991714,2cyclictest0-21swapper/023:35:000
2251440991710,2cyclictest2706193-21gltestperf00:05:430
302487291161,3phc2sys0-21swapper/321:05:513
302487291160,2phc2sys0-21swapper/323:57:523
302487291160,2phc2sys0-21swapper/322:33:483
302487291160,1phc2sys0-21swapper/300:28:273
2251442991614,1cyclictest0-21swapper/222:35:462
2251442991614,1cyclictest0-21swapper/222:20:432
2251442991613,1cyclictest0-21swapper/223:10:002
2251442991613,1cyclictest0-21swapper/221:40:022
2251442991613,1cyclictest0-21swapper/220:55:502
2251442991613,1cyclictest0-21swapper/220:25:002
2251442991613,1cyclictest0-21swapper/200:20:482
2251442991612,2cyclictest0-21swapper/221:47:292
225144299160,1cyclictest0-21swapper/223:15:002
225144199165,6cyclictest2441941-21kworker/u16:3+nfsiod22:21:001
2251441991613,2cyclictest2730931-21munin-plugin-st00:20:001
2251441991612,3cyclictest2638533-21kthreadcore23:25:481
2251441991612,2cyclictest0-21swapper/120:05:001
2251441991612,2cyclictest0-21swapper/120:05:001
2251441991610,2cyclictest170550irq/121-eno119:50:071
225144099168,4cyclictest2670544-21aten2.4-expect23:45:380
225144099167,5cyclictest0-21swapper/023:55:020
225144099167,5cyclictest0-21swapper/023:15:440
225144099166,5cyclictest0-21swapper/023:30:020
225144099163,7cyclictest2369904-21aten2.4-expect20:45:400
225144099163,7cyclictest2369904-21aten2.4-expect20:45:400
2251440991613,2cyclictest2345179-21cron20:25:000
2251440991610,5cyclictest1652-1atopacctd21:51:500
225144099160,10cyclictest2327223-21unin-run20:10:020
835298150,3rtkit-daemon2432359-21ssh21:25:511
302487291150,5phc2sys0-21swapper/322:13:233
302487291150,5phc2sys0-21swapper/322:13:233
302487291150,3phc2sys0-21swapper/321:50:443
302487291150,2phc2sys0-21swapper/321:10:123
302487291150,2phc2sys0-21swapper/300:30:273
267182921511,2sleep20-21swapper/223:45:452
225144299157,2cyclictest0-21swapper/219:40:432
2251442991512,1cyclictest0-21swapper/223:50:472
2251442991512,1cyclictest0-21swapper/223:40:402
2251442991512,1cyclictest0-21swapper/222:45:012
2251442991512,1cyclictest0-21swapper/222:45:012
2251442991512,1cyclictest0-21swapper/221:20:012
2251442991511,2cyclictest0-21swapper/221:00:232
2251442991511,2cyclictest0-21swapper/219:55:402
2251442991510,3cyclictest0-21swapper/222:15:442
225144299150,9cyclictest0-21swapper/223:20:002
225144199156,4cyclictest0-21swapper/121:25:011
225144199153,7cyclictest2369543-21kworker/u16:1+nfsiod21:16:121
2251441991513,1cyclictest2669861-21latency_hist23:45:011
2251441991512,2cyclictest2751777-21kthreadcore00:30:461
2251441991512,2cyclictest2680195-21irqcore23:50:441
2251441991512,2cyclictest2675040-21kthreadcore23:45:461
2251441991512,2cyclictest2645772-21kthreadcore23:30:461
2251441991512,2cyclictest2251438-21cyclictest21:00:411
2251441991512,2cyclictest2251438-21cyclictest20:29:521
2251441991511,3cyclictest2602384-21kthreadcore23:05:441
2251441991511,3cyclictest2582902-21kworker/u16:0+nfsiod22:55:171
2251441991511,3cyclictest2446998-21kthreadcore21:35:431
2251441991511,3cyclictest2381678-21kworker/u16:2+nfsiod22:00:141
2251441991511,3cyclictest2356228-21latency20:30:471
2251441991511,2cyclictest2251438-21cyclictest23:15:011
2251441991511,2cyclictest0-21swapper/119:35:011
225144099159,3cyclictest1106-21hwrng22:02:220
225144099158,6cyclictest0-21swapper/022:45:470
225144099157,4cyclictest2715562-21kthreadcore00:10:460
225144099155,5cyclictest2399889-21diskmemload22:20:530
225144099154,6cyclictest0-21swapper/021:30:530
2251440991512,2cyclictest2521819-21ssh22:20:010
2251440991512,2cyclictest2505648-21fschecks_count22:10:410
2251440991512,2cyclictest2505648-21fschecks_count22:10:410
2251440991512,2cyclictest2391864-21kthreadcore21:00:470
2251440991512,2cyclictest2321113-21latency_hist20:05:010
2251440991512,2cyclictest2321113-21latency_hist20:05:010
2251440991512,2cyclictest0-21swapper/022:10:000
2251440991511,3cyclictest2074923-21kworker/u16:0+nfsiod21:22:250
302487291140,2phc2sys0-21swapper/323:25:523
302487291140,2phc2sys0-21swapper/323:23:153
2251442991412,1cyclictest0-21swapper/223:35:452
2251442991412,1cyclictest0-21swapper/223:25:542
2251442991412,1cyclictest0-21swapper/221:24:452
2251442991412,1cyclictest0-21swapper/221:10:012
2251442991412,1cyclictest0-21swapper/220:50:002
2251442991412,1cyclictest0-21swapper/220:50:002
2251442991411,2cyclictest0-21swapper/221:40:472
2251442991411,1cyclictest0-21swapper/223:00:462
2251442991411,1cyclictest0-21swapper/222:26:152
2251442991411,1cyclictest0-21swapper/221:55:442
2251442991411,1cyclictest0-21swapper/221:30:472
2251442991411,1cyclictest0-21swapper/221:25:412
2251442991411,1cyclictest0-21swapper/220:25:482
2251442991411,1cyclictest0-21swapper/200:10:532
2251441991412,1cyclictest0-21swapper/120:40:011
2251441991411,2cyclictest2597699-21unixbench_singl23:00:501
2251441991411,2cyclictest2455316-21kthreadcore21:40:471
2251441991411,2cyclictest2435663-21tail21:30:401
2251441991411,2cyclictest2382205-21cpu20:55:381
2251441991411,2cyclictest2365086-21kthreadcore20:40:461
2251441991411,2cyclictest2267101-21irqcore19:20:451
2251441991411,2cyclictest2265902-21systemd-run19:20:011
2251441991411,2cyclictest2251438-21cyclictest22:25:401
2251441991410,3cyclictest2394916-21head21:05:401
225144199140,3cyclictest0-21swapper/123:20:361
225144099144,6cyclictest0-21swapper/020:40:060
225144099143,6cyclictest0-21swapper/019:54:060
2251440991411,2cyclictest2690621-21kthreadcore23:55:460
2251440991411,2cyclictest2400160-21systemd-run21:10:020
2251440991411,2cyclictest2376669-21gltestperf20:50:430
2251440991411,2cyclictest2264140-21kthreadcore19:15:460
2251440991410,3cyclictest2654232-21irqrtprio23:35:440
225144099140,9cyclictest2345529-21/usr/sbin/munin20:25:380
225144099140,6cyclictest2272186-21rm19:25:010
225144099140,4cyclictest170550irq/121-eno121:25:430
302487291131,1phc2sys0-21swapper/319:13:103
302487291130,2phc2sys0-21swapper/323:31:083
302487291130,2phc2sys0-21swapper/322:56:543
302487291130,2phc2sys0-21swapper/322:16:303
302487291130,2phc2sys0-21swapper/321:55:513
225144299139,2cyclictest0-21swapper/222:55:442
225144299131,6cyclictest0-21swapper/219:30:012
2251442991310,2cyclictest0-21swapper/219:15:452
2251442991310,1cyclictest0-21swapper/223:30:472
2251442991310,1cyclictest0-21swapper/222:05:412
2251442991310,1cyclictest0-21swapper/220:40:392
2251442991310,1cyclictest0-21swapper/220:30:432
2251442991310,1cyclictest0-21swapper/220:20:012
2251442991310,1cyclictest0-21swapper/220:00:422
2251442991310,1cyclictest0-21swapper/220:00:422
2251442991310,1cyclictest0-21swapper/219:50:442
2251442991310,1cyclictest0-21swapper/219:45:502
2251442991310,1cyclictest0-21swapper/200:15:432
225144199139,3cyclictest2692332-21kthreadcore23:55:461
225144199139,3cyclictest2291250-21cstates19:40:391
225144199137,2cyclictest170550irq/121-eno120:20:421
2251441991310,2cyclictest2370571-21gltestperf20:45:441
2251441991310,2cyclictest2370571-21gltestperf20:45:441
2251441991310,2cyclictest2324674-21kthreadcore20:05:471
2251441991310,2cyclictest2309273-21cpu19:55:381
2251441991310,2cyclictest2276087-21kthreadcore19:25:441
225144099135,2cyclictest0-21swapper/022:25:360
225144099134,5cyclictest0-21swapper/019:40:230
225144099131,7cyclictest0-21swapper/019:55:430
2251440991310,2cyclictest2382674-21gltestperf20:55:410
2251440991310,2cyclictest2354289-21kthreadcore20:30:460
2251440991310,2cyclictest2286702-21kthreadcore19:35:440
2251440991310,2cyclictest1635-21dbus-daemon19:30:010
225144099130,8cyclictest2327536-21grep20:10:420
302487291120,2phc2sys0-21swapper/320:45:203
302487291120,2phc2sys0-21swapper/320:45:203
302487291120,2phc2sys0-21swapper/320:38:153
225144299129,1cyclictest0-21swapper/220:50:462
225144299129,1cyclictest0-21swapper/219:35:452
225144299129,1cyclictest0-21swapper/219:30:432
2251442991210,1cyclictest0-21swapper/222:00:462
2251442991210,1cyclictest0-21swapper/200:00:442
225144099127,1cyclictest0-21swapper/020:15:400
225144099120,7cyclictest2357679-21/usr/sbin/munin20:35:470
302487291112,4phc2sys0-21swapper/321:23:383
302487291111,3phc2sys0-21swapper/321:32:373
302487291111,3phc2sys0-21swapper/321:00:393
302487291111,2phc2sys0-21swapper/322:25:243
302487291110,3phc2sys0-21swapper/323:15:373
302487291110,3phc2sys0-21swapper/320:20:473
302487291110,3phc2sys0-21swapper/320:15:393
302487291110,2phc2sys0-21swapper/321:27:483
302487291110,2phc2sys0-21swapper/319:21:573
25987132110,3sleep30-21swapper/323:02:263
225144299119,1cyclictest0-21swapper/220:35:202
302487291102,2phc2sys0-21swapper/319:15:393
302487291101,3phc2sys0-21swapper/323:36:133
302487291101,3phc2sys0-21swapper/322:05:023
302487291101,2phc2sys0-21swapper/300:05:143
302487291100,3phc2sys0-21swapper/323:45:473
302487291100,3phc2sys0-21swapper/323:10:243
302487291100,3phc2sys0-21swapper/322:40:383
302487291100,3phc2sys0-21swapper/322:40:383
302487291100,3phc2sys0-21swapper/322:35:533
302487291100,3phc2sys0-21swapper/320:40:513
302487291100,3phc2sys0-21swapper/320:30:013
302487291100,3phc2sys0-21swapper/300:00:503
302487291100,2phc2sys0-21swapper/323:06:153
302487291100,2phc2sys0-21swapper/321:17:503
302487291100,2phc2sys0-21swapper/320:10:503
302487291100,2phc2sys0-21swapper/319:35:393
302487291100,2phc2sys0-21swapper/300:36:203
302487291100,2phc2sys0-21swapper/300:15:403
225144199104,2cyclictest170550irq/121-eno119:10:011
30248729190,3phc2sys0-21swapper/319:40:443
30248729190,2phc2sys0-21swapper/321:45:033
30248729190,2phc2sys0-21swapper/320:54:013
30248729190,2phc2sys0-21swapper/320:30:453
30248729190,2phc2sys0-21swapper/320:07:453
30248729190,2phc2sys0-21swapper/320:00:363
30248729190,2phc2sys0-21swapper/320:00:363
30248729190,2phc2sys0-21swapper/319:59:563
30248729190,2phc2sys0-21swapper/319:51:423
30248729190,2phc2sys0-21swapper/319:45:413
30248729190,2phc2sys0-21swapper/319:25:383
30248729190,2phc2sys0-21swapper/319:05:373
30248729180,3phc2sys0-21swapper/319:30:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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