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2026-07-16 - 04:20
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot6.osadl.org (updated Thu Jul 16, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2919021850,5sleep23245899cyclictest01:56:492
1068911020,4ptp4l401ktimersoftd/321:08:293
238952790,2sleep00-21swapper/001:51:050
65942670,2sleep10-21swapper/100:59:551
65942670,2sleep10-21swapper/100:59:551
37142670,3sleep30-21swapper/302:36:243
32465996457,4cyclictest41-21ksoftirqd/323:34:293
3244899610,28cyclictest7435-21sed22:29:320
106891610,1ptp4l401ktimersoftd/322:19:413
106891590,1ptp4l401ktimersoftd/323:17:283
106891590,1ptp4l401ktimersoftd/323:17:283
106891590,1ptp4l401ktimersoftd/301:32:083
160122580,1sleep30-21swapper/323:31:443
32465995748,5cyclictest41-21ksoftirqd/300:34:303
32448995710,25cyclictest25370-21diskmemload23:40:190
322802574,41sleep00-21swapper/021:08:170
212752570,2sleep00-21swapper/001:14:550
321952564,40sleep20-21swapper/221:07:102
106891560,1ptp4l401ktimersoftd/300:39:493
36092550,2sleep10-21swapper/101:29:581
3244899550,30cyclictest25370-21diskmemload01:20:440
3244899550,24cyclictest25370-21diskmemload23:54:490
32465995445,5cyclictest41-21ksoftirqd/300:49:293
105122540,2sleep20-21swapper/201:04:372
3244899530,23cyclictest25370-21diskmemload02:11:540
3244899520,22cyclictest25370-21diskmemload01:08:230
3244899510,24cyclictest19129-21cat02:19:380
106891500,1ptp4l401ktimersoftd/301:05:313
3244899490,26cyclictest25370-21diskmemload00:03:050
3244899490,24cyclictest16079-21latency_hist22:49:150
3244899490,23cyclictest25370-21diskmemload02:36:310
3244899490,20cyclictest0-21swapper/001:09:470
92022480,1sleep20-21swapper/223:24:362
32465994736,6cyclictest41-21ksoftirqd/321:24:243
32465994637,5cyclictest41-21ksoftirqd/302:04:333
32465994634,7cyclictest41-21ksoftirqd/300:14:293
106891460,1ptp4l401ktimersoftd/300:22:443
32465994534,5cyclictest41-21ksoftirqd/300:44:293
106891450,1ptp4l401ktimersoftd/302:32:463
106891450,0ptp4l401ktimersoftd/300:25:283
32465994439,3cyclictest41-21ksoftirqd/300:29:213
3244899430,21cyclictest0-21swapper/023:24:450
3244899422,33cyclictest15137-21apt-get00:04:270
3244899421,33cyclictest11607-21apt-get01:39:310
3244899420,21cyclictest25370-21diskmemload02:02:200
3244899420,20cyclictest25370-21diskmemload23:52:500
3244899411,34cyclictest3218-21apt-get23:19:280
106891410,1ptp4l401ktimersoftd/302:25:323
32465994034,3cyclictest41-21ksoftirqd/300:54:223
32465994032,4cyclictest41-21ksoftirqd/323:09:283
32448994016,21cyclictest30285-21sh23:45:580
3244899400,25cyclictest0-21swapper/021:09:300
3244899393,33cyclictest4152-21grep00:24:460
3244899392,29cyclictest16451-21ssh01:44:290
3244899391,24cyclictest25370-21diskmemload02:06:170
106891390,1ptp4l401ktimersoftd/301:54:523
32465993826,6cyclictest41-21ksoftirqd/321:44:263
32448993815,20cyclictest25370-21diskmemload00:19:230
3244899381,34cyclictest32655-21grep22:14:330
32448993813,21cyclictest19668-21grep22:54:360
3244899381,29cyclictest30675-21apt-get23:14:260
3244899381,29cyclictest30675-21apt-get23:14:260
106891380,1ptp4l401ktimersoftd/323:26:403
106891380,1ptp4l401ktimersoftd/321:59:273
106891380,1ptp4l401ktimersoftd/302:23:113
32465993725,4cyclictest41-21ksoftirqd/301:24:303
3244899373,27cyclictest13017-21apt-get23:29:290
3244899372,30cyclictest5730-21wc21:19:260
3244899372,30cyclictest5730-21wc21:19:260
3244899372,28cyclictest6739-21apt-get01:34:320
32448993715,19cyclictest25370-21diskmemload00:31:490
32448993714,20cyclictest25370-21diskmemload23:13:120
32448993714,20cyclictest25370-21diskmemload02:32:520
32448993713,20cyclictest25370-21diskmemload00:59:330
32448993713,20cyclictest25370-21diskmemload00:59:330
106891370,1ptp4l401ktimersoftd/323:56:523
106891370,1ptp4l401ktimersoftd/323:52:053
106891370,1ptp4l401ktimersoftd/323:48:333
106891370,1ptp4l401ktimersoftd/323:39:263
106891370,1ptp4l401ktimersoftd/323:21:473
106891370,1ptp4l401ktimersoftd/302:16:193
106891370,1ptp4l401ktimersoftd/302:11:473
106891370,1ptp4l401ktimersoftd/302:02:193
106891370,1ptp4l401ktimersoftd/301:47:213
106891370,1ptp4l401ktimersoftd/301:43:453
106891370,1ptp4l401ktimersoftd/301:17:383
106891370,1ptp4l401ktimersoftd/301:11:473
106891370,1ptp4l401ktimersoftd/300:11:553
32448993613,20cyclictest19316-21mailstats23:34:410
3244899361,28cyclictest23617-21apt-get02:24:320
32448993612,21cyclictest26936-21cut01:54:360
32448993612,21cyclictest24985-21tr21:59:270
32448993610,23cyclictest8393-21cut21:24:280
32448993610,22cyclictest21146-21cat22:59:270
3244899360,32cyclictest0-21swapper/022:39:270
3244899360,21cyclictest0-21swapper/000:44:590
3244899360,19cyclictest0-21swapper/000:40:390
106891360,1ptp4l401ktimersoftd/301:23:023
106891360,0ptp4l401ktimersoftd/300:00:103
3245399353,11cyclictest29876-21ssh00:19:281
32448993513,19cyclictest12716-21sed21:34:140
3244899351,28cyclictest0-21swapper/022:34:260
32448993512,20cyclictest25370-21diskmemload00:38:220
32448993512,19cyclictest1055-21runrttasks21:41:310
3244899351,19cyclictest30619-21smartctl01:24:430
321322354,18sleep1233-21systemd-journal21:06:201
304402350,18sleep10-21swapper/102:30:011
106891350,1ptp4l401ktimersoftd/300:08:263
3245399342,21cyclictest15152-21rm00:04:281
32453993410,12cyclictest25370-21diskmemload01:54:291
3244899349,22cyclictest23402-21cpuspeed_turbos23:04:310
32448993413,18cyclictest3822-21idleruntime21:14:280
3244899341,29cyclictest13745-21cpuspeed_turbos02:14:320
3244899341,28cyclictest12813-21apt-get21:34:260
3244899341,28cyclictest0-21swapper/022:09:240
3244899341,27cyclictest1677-21apt-get01:29:310
3244899340,30cyclictest5673-21python22:24:370
106891340,1ptp4l401ktimersoftd/301:52:593
32465993327,3cyclictest41-21ksoftirqd/322:39:153
32465993322,5cyclictest41-21ksoftirqd/322:04:263
3245399336,15cyclictest13026-21ssh23:29:291
3244899338,22cyclictest2488-21if_enp1s022:19:310
3244899336,23cyclictest17825-21unixbench_singl22:49:450
3244899332,26cyclictest0-21swapper/021:49:260
3244899331,28cyclictest31557-21apt-get00:54:220
106891330,1ptp4l401ktimersoftd/321:09:273
106891330,1ptp4l401ktimersoftd/301:37:263
32465993226,3cyclictest41-21ksoftirqd/300:59:323
32465993226,3cyclictest41-21ksoftirqd/300:59:323
3244899329,19cyclictest28670-21timerandwakeup00:49:460
3244899327,22cyclictest26781-21unixbench_singl00:14:460
3244899326,22cyclictest22564-21fschecks_count21:54:290
32448993211,18cyclictest17507-21acpi21:44:250
106891320,10ptp4l401ktimersoftd/323:04:263
32465993125,3cyclictest41-21ksoftirqd/321:39:143
3244899314,24cyclictest21359-21/usr/sbin/munin00:09:400
106891310,1ptp4l401ktimersoftd/322:48:493
106891310,10ptp4l401ktimersoftd/322:27:013
32465993025,3cyclictest41-21ksoftirqd/322:49:333
32465993024,3cyclictest41-21ksoftirqd/322:29:273
32465993024,3cyclictest41-21ksoftirqd/321:49:313
3244899300,26cyclictest27424-21ls22:04:270
32465992923,3cyclictest41-21ksoftirqd/322:09:253
32465992923,3cyclictest41-21ksoftirqd/321:54:433
32465992923,3cyclictest41-21ksoftirqd/321:34:143
32465992922,4cyclictest41-21ksoftirqd/321:44:133
32458992924,3cyclictest33-21ksoftirqd/222:59:272
32453992922,4cyclictest25-21ksoftirqd/101:44:391
106891290,1ptp4l401ktimersoftd/322:54:473
32465992823,3cyclictest41-21ksoftirqd/321:19:133
32465992822,3cyclictest41-21ksoftirqd/323:04:153
32465992822,3cyclictest41-21ksoftirqd/322:39:313
3245399282,20cyclictest5164-21kworker/u8:123:44:281
32453992819,5cyclictest25-21ksoftirqd/102:24:241
106891280,1ptp4l401ktimersoftd/321:21:043
106891280,1ptp4l401ktimersoftd/321:21:043
89952270,4sleep23245899cyclictest22:34:262
32458992722,3cyclictest33-21ksoftirqd/223:59:362
32458992722,3cyclictest16914-21kworker/2:101:34:192
32458992720,4cyclictest33-21ksoftirqd/200:13:022
32458992713,11cyclictest33-21ksoftirqd/202:19:402
32458992711,12cyclictest5937-21sh02:05:472
3245899262,2cyclictest121rcu_preempt23:56:402
32458992621,3cyclictest33-21ksoftirqd/201:44:402
32458992620,3cyclictest33-21ksoftirqd/223:07:372
32458992620,3cyclictest33-21ksoftirqd/221:10:552
32458992619,4cyclictest33-21ksoftirqd/222:56:502
32458992619,4cyclictest33-21ksoftirqd/221:52:472
32458992619,4cyclictest33-21ksoftirqd/200:47:032
32458992612,3cyclictest33-21ksoftirqd/221:16:292
32453992620,3cyclictest25-21ksoftirqd/122:49:171
3245399260,3cyclictest121rcu_preempt02:38:421
96032251,2sleep10-21swapper/123:59:171
32465992519,3cyclictest41-21ksoftirqd/322:14:283
3245899252,3cyclictest121rcu_preempt00:30:542
32458992520,3cyclictest33-21ksoftirqd/201:34:382
32458992518,4cyclictest33-21ksoftirqd/222:51:082
32458992518,4cyclictest33-21ksoftirqd/222:00:422
3245899251,3cyclictest121rcu_preempt02:31:592
3245899251,3cyclictest121rcu_preempt01:24:412
3245399253,14cyclictest18555-21ssh02:19:321
32453992519,3cyclictest25-21ksoftirqd/122:12:001
32453992519,3cyclictest25-21ksoftirqd/121:29:191
32453992518,4cyclictest25-21ksoftirqd/122:16:301
32453992518,4cyclictest25-21ksoftirqd/121:38:011
32458992419,3cyclictest27973-21sed00:49:362
32458992418,3cyclictest33-21ksoftirqd/223:19:472
32458992418,3cyclictest33-21ksoftirqd/222:24:212
32458992417,4cyclictest8898-21grep02:09:372
32458992417,4cyclictest33-21ksoftirqd/222:33:502
32458992417,4cyclictest33-21ksoftirqd/221:38:302
32458992417,4cyclictest33-21ksoftirqd/221:30:392
32458992417,4cyclictest33-21ksoftirqd/221:28:422
32458992417,4cyclictest33-21ksoftirqd/201:19:312
32453992419,3cyclictest25-21ksoftirqd/121:47:551
32453992419,3cyclictest25-21ksoftirqd/102:05:121
32453992419,3cyclictest25-21ksoftirqd/101:34:231
32453992418,4cyclictest25-21ksoftirqd/121:54:511
32453992418,3cyclictest25-21ksoftirqd/123:02:181
32453992418,3cyclictest25-21ksoftirqd/122:40:381
32453992418,3cyclictest25-21ksoftirqd/121:25:471
32453992418,3cyclictest25-21ksoftirqd/100:29:171
32453992417,4cyclictest25-21ksoftirqd/121:17:531
32453992417,4cyclictest25-21ksoftirqd/101:08:221
32453992413,6cyclictest25370-21diskmemload01:39:431
32458992318,3cyclictest33-21ksoftirqd/222:44:142
32458992317,4cyclictest33-21ksoftirqd/201:01:522
32458992317,4cyclictest33-21ksoftirqd/201:01:522
32458992316,4cyclictest33-21ksoftirqd/222:44:582
32458992316,4cyclictest33-21ksoftirqd/221:41:192
32458992316,4cyclictest33-21ksoftirqd/221:20:472
32458992316,4cyclictest33-21ksoftirqd/221:20:472
32458992316,4cyclictest33-21ksoftirqd/201:50:062
32458992316,4cyclictest18631-21cut23:34:362
32453992318,3cyclictest25-21ksoftirqd/101:14:451
32453992318,3cyclictest25-21ksoftirqd/100:34:471
32453992317,4cyclictest25-21ksoftirqd/121:22:351
32453992317,4cyclictest25-21ksoftirqd/121:22:351
32453992317,3cyclictest30637-21snmp_o5powerctl01:24:451
3245899222,17cyclictest1568-21grep00:54:482
32458992217,3cyclictest33-21ksoftirqd/222:09:142
32458992215,4cyclictest33-21ksoftirqd/200:28:082
3245899221,17cyclictest31558-21gltestperf01:59:352
32458992210,9cyclictest33-21ksoftirqd/200:06:482
32458992210,9cyclictest15299-21sh23:30:302
3245399224,9cyclictest3236-21ssh23:19:291
3245399224,3cyclictest0-21swapper/101:50:491
32453992217,3cyclictest25-21ksoftirqd/102:11:451
32453992217,3cyclictest25-21ksoftirqd/102:01:421
32453992216,4cyclictest25-21ksoftirqd/121:12:551
32453992214,5cyclictest47050irq/101-ens3-Tx02:14:311
3245899212,14cyclictest12367-21apt-get00:34:302
32458992115,4cyclictest33-21ksoftirqd/202:34:492
32458992115,4cyclictest33-21ksoftirqd/200:39:482
32458992115,3cyclictest33-21ksoftirqd/221:44:552
32458992114,4cyclictest33-21ksoftirqd/222:12:062
32458992114,4cyclictest33-21ksoftirqd/200:19:172
3245399213,11cyclictest30684-21ssh23:14:261
3245399213,11cyclictest30684-21ssh23:14:261
32453992116,3cyclictest25-21ksoftirqd/122:45:391
32453992116,3cyclictest25-21ksoftirqd/122:02:081
32453992114,4cyclictest19662-21phc2sys22:54:361
32453992110,8cyclictest233-21systemd-journal23:44:161
32458992015,3cyclictest33-21ksoftirqd/223:44:582
32458992014,3cyclictest33-21ksoftirqd/222:16:192
32458992014,3cyclictest27837-21sh23:10:062
32458992014,3cyclictest23522-21sh02:24:292
32458992013,4cyclictest33-21ksoftirqd/221:56:002
32458992013,4cyclictest19568-21expr01:14:322
32458992013,4cyclictest15071-21snmp_o5powerctl02:14:432
32458992013,4cyclictest11509-21seq01:39:282
3245899201,16cyclictest15921-21snmp_o5powerctl01:09:442
3245899200,17cyclictest23473-21if_ens323:39:352
3245399202,15cyclictest11125-21cron22:39:151
3245399201,9cyclictest8126-21ssh23:24:281
32453992015,3cyclictest25-21ksoftirqd/123:50:411
32453992015,3cyclictest25-21ksoftirqd/122:30:151
32453992014,4cyclictest25-21ksoftirqd/100:29:311
32453992014,4cyclictest25-21ksoftirqd/100:02:331
32453992014,4cyclictest17843-21/usr/sbin/munin23:34:341
32453992014,3cyclictest5483-21pluginstate22:24:351
32453992014,3cyclictest1055-21runrttasks22:19:291
32453992014,3cyclictest1055-21runrttasks00:14:311
32453992013,4cyclictest32490-21fschecks_count00:54:331
32453992013,4cyclictest28939-21rm00:49:491
32453992010,7cyclictest26488-21irqrtprio23:09:341
3245399200,17cyclictest22912-21cut00:44:351
32458991913,3cyclictest3621-21sed22:19:432
32458991913,3cyclictest32556-21sh23:14:462
32458991913,3cyclictest32556-21sh23:14:462
32458991913,3cyclictest29786-21/usr/sbin/munin00:19:382
32458991913,3cyclictest1435-21sh23:49:392
32453991914,3cyclictest25-21ksoftirqd/121:43:021
32453991914,3cyclictest24775-21timerandwakeup23:04:471
32453991913,4cyclictest19994-21basename00:09:291
32453991913,3cyclictest27458-21cat22:04:281
32453991912,4cyclictest25582-21seq01:19:411
32453991912,4cyclictest15548-21missed_timers01:09:381
32453991812,3cyclictest20405-21smartctl21:49:311
32453991711,3cyclictest25370-21diskmemload00:39:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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