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2026-08-25 - 11:17
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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 Tue Aug 25, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
276686121660,2sleep30-21swapper/321:30:003
263687221070,2sleep30-21swapper/320:00:023
304407021010,3sleep13044074-21missed_timers00:10:051
304407021010,3sleep13044074-21missed_timers00:10:051
27016732980,2sleep30-21swapper/320:45:033
30836062390,2sleep30-21swapper/300:35:013
256993399251,19cyclictest3037977-21apt-get00:09:390
256993999247,8cyclictest0-21swapper/121:54:381
2569939992416,3cyclictest3064095-21tr00:25:021
256993999241,13cyclictest2729663-21python321:05:051
256993399233,18cyclictest0-21swapper/023:19:370
2569933992311,8cyclictest2812057-21kthreadcore21:55:000
256994699221,10cyclictest0-21swapper/200:29:382
256994699221,10cyclictest0-21swapper/200:29:382
256993999229,8cyclictest2820607-21irqcore22:00:001
256993999227,9cyclictest0-21swapper/122:15:031
256993999224,10cyclictest2584445-21taskset19:20:571
256993999221,13cyclictest1188-21runrttasks23:14:171
256993999220,3cyclictest3025775-21munin-plugin-st00:00:011
256993399228,9cyclictest0-21swapper/022:25:060
256993399225,3cyclictest2626206-21/usr/sbin/munin19:55:060
26587272210,2sleep12658636-21munin-run20:15:031
256993999215,8cyclictest1188-21runrttasks23:26:401
256993999214,9cyclictest2577672-21taskset19:16:531
256993999214,9cyclictest1188-21runrttasks23:02:311
256993999214,9cyclictest1188-21runrttasks22:21:221
256993999214,9cyclictest1188-21runrttasks22:21:221
256993999213,10cyclictest2626078-21taskset19:53:001
256993999212,11cyclictest1206-21snmpd22:35:171
256993999211,5cyclictest1188-21runrttasks22:30:521
256993999211,4cyclictest2898938-21runrttasks22:43:511
2569939992113,7cyclictest975-21in:imuxsock00:34:561
2569939992112,8cyclictest2593016-21kthreadcore19:29:591
256993999211,12cyclictest2988010-21/usr/sbin/munin23:35:091
256993999211,11cyclictest0-21swapper/123:50:011
256993999210,5cyclictest2915209-21taskset22:51:051
256993999210,5cyclictest2798436-21ssh21:45:061
256993999210,5cyclictest2783236-21taskset21:38:491
256993999210,5cyclictest2640269-21taskset20:04:421
256993999210,5cyclictest2612496-21aten2.4-expect19:44:421
256993999210,13cyclictest2737143-21taskset21:10:501
256993399219,4cyclictest2736014-21cut21:10:030
256993399218,1cyclictest0-21swapper/020:20:060
256993399216,10cyclictest0-21swapper/023:24:570
256993399211,6cyclictest3067440-21sed00:25:090
256993399211,6cyclictest3067440-21sed00:25:090
256993399210,1cyclictest1-21systemd00:00:030
256993999203,9cyclictest2723338-21taskset21:02:171
256993999202,10cyclictest2571113-21taskset19:12:551
256993999201,5cyclictest2764319-21runrttasks21:26:321
256993999201,5cyclictest1188-21runrttasks23:05:431
256993999201,3cyclictest2871322-21taskset22:26:441
256993999201,3cyclictest2836617-21taskset22:08:161
256993999201,3cyclictest2674788-21seq20:26:281
256993999201,3cyclictest2619207-21runrttasks19:46:461
2569939992011,8cyclictest3075806-21load00:30:041
2569939992011,8cyclictest3075806-21load00:30:041
2569939992011,8cyclictest2771689-21kthreadcore21:30:051
256993999201,10cyclictest2960656-21ssh23:17:501
256993999200,5cyclictest3050637-21taskset00:16:441
256993999200,5cyclictest3028906-21taskset00:04:211
256993999200,5cyclictest3009456-21taskset23:50:551
256993999200,5cyclictest3004384-21taskset23:41:291
256993999200,5cyclictest2986998-21taskset23:32:381
256993999200,5cyclictest2907296-21taskset22:48:001
256993999200,5cyclictest2755530-21taskset21:21:291
256993999200,5cyclictest2716287-21seq20:56:261
256993999200,5cyclictest2702700-21taskset20:48:391
256993999200,5cyclictest2688772-21seq20:36:261
256993999200,5cyclictest2667914-21taskset20:22:451
256993999200,5cyclictest2632127-21taskset19:55:041
256993999200,5cyclictest2598186-21taskset19:30:511
256993999200,5cyclictest1188-21runrttasks00:09:011
256993999200,4cyclictest2827574-21runrttasks22:03:071
256993999200,4cyclictest2791407-21runrttasks21:42:021
256993999200,4cyclictest2709074-21runrttasks20:50:071
256993999200,4cyclictest2695796-21taskset20:44:021
256993999200,4cyclictest2681870-21runrttasks20:32:071
256993999200,4cyclictest2661058-21runrttasks20:19:171
256993999200,4cyclictest2646851-21taskset20:05:261
256993999200,4cyclictest2605243-21taskset19:37:081
256993399209,2cyclictest3061520-21df_inode00:24:570
256993399209,10cyclictest2739422-21cpuspeed_turbos21:14:570
256993399208,4cyclictest0-21swapper/021:20:040
256993399207,2cyclictest0-21swapper/023:10:070
256993399206,6cyclictest2929430-21kthreadcore23:00:030
256993399203,9cyclictest0-21swapper/000:33:030
2569933992015,4cyclictest778-21dbus-daemon22:10:010
256993399201,14cyclictest2774856-21apt-get21:34:370
2569933992010,6cyclictest24614-21JS14:54:060
2569933992010,3cyclictest2569925-21cyclictest00:10:580
2569933992010,3cyclictest2569925-21cyclictest00:10:580
2569939991910,8cyclictest2570008-21missed_timers19:10:021
256993999190,4cyclictest2853287-21runrttasks22:16:041
256993999190,4cyclictest2746189-21runrttasks21:15:441
256993999190,3cyclictest3085957-21taskset00:36:201
256993999190,3cyclictest2968766-21taskset23:21:161
256993999190,3cyclictest2923947-21taskset22:55:381
256993399194,3cyclictest2612789-21tr19:44:550
256993399193,7cyclictest0-21swapper/000:19:330
256993399191,6cyclictest0-21swapper/023:00:220
2569933991914,4cyclictest3091937-21/usr/sbin/munin00:40:030
2569933991913,5cyclictest2849881-21systemd-run22:15:020
2569933991913,5cyclictest2832431-21kthreadcore22:05:030
2569933991913,5cyclictest2708940-21ptp4l-jitter20:50:050
2569933991913,5cyclictest24616-21JS14:54:060
2569933991910,2cyclictest376-21systemd-journal21:21:430
256993399190,17cyclictest241rcuc/019:49:590
2213291191,5phc2sys0-21swapper/323:39:393
256993399186,5cyclictest3026838-21grep00:00:080
256993399186,2cyclictest0-21swapper/023:55:020
256993399184,6cyclictest0-21swapper/020:49:380
256993399184,10cyclictest2681742-21kworker/u16:3+nfsiod22:32:400
256993399181,8cyclictest2783694-21ssh21:39:380
2569933991813,4cyclictest2976467-21proc_pri23:25:040
2569933991813,4cyclictest2865330-21sed22:25:000
2569933991813,4cyclictest2865330-21sed22:25:000
2569933991812,5cyclictest2917981-21irqcore22:54:590
2569933991812,5cyclictest2722852-21switchtime21:00:090
2569933991812,5cyclictest2685350-21kthreadcore20:35:010
2569933991812,5cyclictest2664597-21kthreadcore20:20:020
2569933991811,6cyclictest2797093-21kthreadcore21:45:050
2569933991811,3cyclictest24616-21JS14:54:060
256993399181,11cyclictest82050irq/121-eno119:19:380
2213291181,6phc2sys0-21swapper/323:19:373
2213291180,2phc2sys0-21swapper/321:33:033
256994699172,8cyclictest0-21swapper/221:29:402
256993399173,6cyclictest0-21swapper/023:40:080
256993399172,2cyclictest0-21swapper/022:17:100
256993399171,8cyclictest2763843-21sh21:25:270
256993399171,8cyclictest0-21swapper/023:33:430
2569933991712,4cyclictest778-21dbus-daemon19:55:030
2569933991712,4cyclictest2734480-21diskmemload23:06:390
2569933991711,5cyclictest975-21in:imuxsock20:29:340
2569933991711,5cyclictest2991936-21kthreadcore23:35:120
2569933991711,5cyclictest2895491-21rm22:40:020
2569933991711,5cyclictest2819406-21sh21:59:390
2569933991711,5cyclictest2644798-21kthreadcore20:05:030
2569933991711,2cyclictest2899368-21apt-get22:44:380
2569933991711,2cyclictest2656949-21kthreadcore20:15:020
2569933991711,2cyclictest2646411-21sendmail_mailqu20:05:060
2569933991710,6cyclictest2574338-21kthreadcore19:15:020
2569933991710,2cyclictest2608610-21kthreadcore19:40:030
2213291170,2phc2sys0-21swapper/323:04:253
2213291170,2phc2sys0-21swapper/322:58:053
2213291170,2phc2sys0-21swapper/322:48:073
2213291170,2phc2sys0-21swapper/322:11:033
2213291170,2phc2sys0-21swapper/319:05:043
256994699161,9cyclictest0-21swapper/221:14:402
2569946991613,1cyclictest0-21swapper/220:24:572
2569946991612,2cyclictest0-21swapper/200:09:152
256993399164,5cyclictest0-21swapper/019:26:280
2569933991611,4cyclictest2585689-21gltestperf19:25:020
256993399161,10cyclictest2717268-21grep20:59:570
2569933991610,5cyclictest2700954-21kthreadcore20:45:020
2569933991610,2cyclictest2601621-21kthreadcore19:35:010
2569933991610,2cyclictest2569925-21cyclictest23:46:540
2213291161,7phc2sys0-21swapper/300:24:393
2213291161,5phc2sys0-21swapper/321:09:383
2213291161,2phc2sys0-21swapper/322:45:023
2213291160,2phc2sys0-21swapper/322:08:003
2213291160,2phc2sys0-21swapper/321:52:193
2213291160,2phc2sys0-21swapper/300:28:373
2213291160,2phc2sys0-21swapper/300:28:373
256994699159,3cyclictest0-21swapper/219:50:012
256994699157,5cyclictest2942420-21chrt23:06:522
256994699151,5cyclictest0-21swapper/221:04:372
2569946991512,1cyclictest0-21swapper/221:10:022
2569946991512,1cyclictest0-21swapper/220:19:592
256994699150,4cyclictest0-21swapper/223:39:392
256993399151,3cyclictest2570182-21munin-run19:10:030
2213291150,2phc2sys0-21swapper/323:55:333
2213291150,2phc2sys0-21swapper/322:25:143
2213291150,1phc2sys0-21swapper/323:48:083
2213291150,1phc2sys0-21swapper/321:59:563
256994699141,8cyclictest0-21swapper/222:54:392
256994699141,6cyclictest0-21swapper/222:29:382
256994699141,6cyclictest0-21swapper/221:24:352
256994699141,5cyclictest0-21swapper/220:54:372
256994699141,5cyclictest0-21swapper/200:24:392
2569946991412,1cyclictest0-21swapper/222:00:092
2569946991412,1cyclictest0-21swapper/219:40:022
2569946991412,1cyclictest0-21swapper/219:25:032
2569946991412,1cyclictest0-21swapper/219:10:032
2569946991411,1cyclictest0-21swapper/222:20:022
2569946991411,1cyclictest0-21swapper/222:00:022
2569946991411,1cyclictest0-21swapper/221:45:482
2213291140,3phc2sys0-21swapper/322:36:193
2213291140,2phc2sys0-21swapper/320:06:403
2213291140,2phc2sys0-21swapper/300:13:243
2213291140,2phc2sys0-21swapper/300:13:243
2213291140,1phc2sys0-21swapper/320:24:573
256994699139,2cyclictest0-21swapper/223:03:462
256994699138,3cyclictest3010058-21chrt23:52:142
256994699133,5cyclictest0-21swapper/223:29:372
256994699131,8cyclictest0-21swapper/222:09:362
256994699131,6cyclictest0-21swapper/223:19:372
256994699131,6cyclictest0-21swapper/220:44:382
256994699131,4cyclictest0-21swapper/220:49:382
256994699131,4cyclictest0-21swapper/219:19:382
2569946991311,1cyclictest0-21swapper/220:30:022
2569946991310,1cyclictest0-21swapper/223:35:002
2569946991310,1cyclictest0-21swapper/222:50:022
2569946991310,1cyclictest0-21swapper/222:39:442
2569946991310,1cyclictest0-21swapper/222:23:342
2569946991310,1cyclictest0-21swapper/222:23:342
2569946991310,1cyclictest0-21swapper/221:30:072
2569946991310,1cyclictest0-21swapper/220:40:012
2569946991310,1cyclictest0-21swapper/219:55:342
2569946991310,1cyclictest0-21swapper/219:55:012
2569946991310,1cyclictest0-21swapper/200:40:022
2569946991310,1cyclictest0-21swapper/200:00:212
256994699130,7cyclictest0-21swapper/221:52:132
256994699130,5cyclictest0-21swapper/222:34:372
2213291135,1phc2sys0-21swapper/323:53:463
2213291131,2phc2sys0-21swapper/300:05:593
2213291130,3phc2sys0-21swapper/319:45:203
2213291130,2phc2sys0-21swapper/323:34:093
2213291130,2phc2sys0-21swapper/322:23:133
2213291130,2phc2sys0-21swapper/322:23:133
2213291130,2phc2sys0-21swapper/321:47:423
2213291130,2phc2sys0-21swapper/321:18:533
2213291130,1phc2sys0-21swapper/300:02:283
27092832120,2sleep30-21swapper/320:50:083
256994699129,1cyclictest0-21swapper/223:49:102
256994699129,1cyclictest0-21swapper/223:10:152
256994699129,1cyclictest0-21swapper/222:11:532
256994699129,1cyclictest0-21swapper/220:09:552
256994699129,1cyclictest0-21swapper/200:18:522
256994699129,1cyclictest0-21swapper/200:12:432
256994699129,1cyclictest0-21swapper/200:12:432
256994699125,3cyclictest0-21swapper/221:35:062
256994699121,5cyclictest0-21swapper/219:14:392
256994699121,4cyclictest0-21swapper/223:45:022
256994699121,4cyclictest0-21swapper/222:44:372
2569946991210,1cyclictest0-21swapper/221:45:022
2569946991210,1cyclictest0-21swapper/220:15:032
2213291123,3phc2sys0-21swapper/321:37:363
256994699119,1cyclictest0-21swapper/223:55:192
256994699119,1cyclictest0-21swapper/220:55:052
256994699119,1cyclictest0-21swapper/220:30:312
256994699119,1cyclictest0-21swapper/219:44:262
256994699119,1cyclictest0-21swapper/219:24:592
256994699119,1cyclictest0-21swapper/200:30:082
256994699118,2cyclictest0-21swapper/221:19:142
256994699118,1cyclictest0-21swapper/220:00:342
256994699118,1cyclictest0-21swapper/219:31:072
256994699110,4cyclictest0-21swapper/222:59:392
2213291111,2phc2sys0-21swapper/322:50:193
2213291111,2phc2sys0-21swapper/322:33:113
2213291111,2phc2sys0-21swapper/319:14:383
2213291110,3phc2sys0-21swapper/322:19:563
2213291110,2phc2sys0-21swapper/321:15:033
2213291110,2phc2sys0-21swapper/320:00:073
2213291110,2phc2sys0-21swapper/319:29:373
2213291110,1phc2sys0-21swapper/319:34:223
256994699108,1cyclictest0-21swapper/223:22:332
2213291104,2phc2sys0-21swapper/320:58:103
2213291102,2phc2sys0-21swapper/321:43:493
2213291101,4phc2sys0-21swapper/321:24:353
2213291101,3phc2sys0-21swapper/322:02:253
2213291101,3phc2sys0-21swapper/319:19:383
2213291101,2phc2sys0-21swapper/323:13:203
2213291101,2phc2sys0-21swapper/323:09:563
2213291101,2phc2sys0-21swapper/320:35:063
2213291101,2phc2sys0-21swapper/320:10:053
2213291101,2phc2sys0-21swapper/300:20:033
2213291100,5phc2sys0-21swapper/320:29:383
2213291100,2phc2sys0-21swapper/323:40:073
2213291100,2phc2sys0-21swapper/323:28:473
2213291100,2phc2sys0-21swapper/323:20:543
2213291100,2phc2sys0-21swapper/320:46:483
2213291100,2phc2sys0-21swapper/320:34:383
221329191,2phc2sys0-21swapper/319:50:093
221329191,2phc2sys0-21swapper/319:36:343
221329191,2phc2sys0-21swapper/319:25:003
221329190,2phc2sys0-21swapper/321:04:373
221329190,2phc2sys0-21swapper/320:16:343
221329190,2phc2sys0-21swapper/319:40:073
221329190,2phc2sys0-21swapper/300:35:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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