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2026-08-26 - 08:36
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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 376 highest latencies:
System rackbslot6.osadl.org (updated Wed Aug 26, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2913121540,3sleep3272199cyclictest01:43:133
1196421540,5sleep0270399cyclictest01:58:480
1068911040,3ptp4l401ktimersoftd/321:27:403
25182674,10sleep00-21swapper/021:31:020
166842660,2sleep10-21swapper/123:07:061
110662610,2sleep00-21swapper/002:32:090
106891600,1ptp4l401ktimersoftd/323:59:373
106891580,1ptp4l401ktimersoftd/300:47:263
271472550,3sleep1270999cyclictest00:02:181
271472550,3sleep1270999cyclictest00:02:181
2721995346,4cyclictest41-21ksoftirqd/323:52:063
2721995322,3cyclictest41-21ksoftirqd/322:52:093
2721995145,3cyclictest41-21ksoftirqd/301:27:063
95062500,3sleep233-21ksoftirqd/201:57:102
2721994943,3cyclictest41-21ksoftirqd/321:42:013
2721994942,4cyclictest41-21ksoftirqd/321:37:033
2721994841,4cyclictest41-21ksoftirqd/322:42:043
2721994816,5cyclictest41-21ksoftirqd/301:56:563
2721994816,5cyclictest41-21ksoftirqd/301:56:563
2721994525,3cyclictest41-21ksoftirqd/300:27:253
106891450,1ptp4l28850-21kworker/3:200:36:273
2721994437,4cyclictest41-21ksoftirqd/323:12:063
106891440,0ptp4l401ktimersoftd/323:41:293
2709994317,4cyclictest23938-21cut23:22:061
2721994136,3cyclictest41-21ksoftirqd/302:07:083
106891410,1ptp4l401ktimersoftd/323:07:163
254024014,14sleep233-21ksoftirqd/221:31:202
272199399,10cyclictest41-21ksoftirqd/321:36:513
239423918,11sleep125-21ksoftirqd/121:29:261
106891390,1ptp4l401ktimersoftd/322:06:523
106891390,1ptp4l401ktimersoftd/302:24:583
106891390,1ptp4l401ktimersoftd/301:33:033
106891390,1ptp4l401ktimersoftd/301:11:083
2721993830,4cyclictest41-21ksoftirqd/301:12:083
106891380,1ptp4l401ktimersoftd/323:43:313
106891380,1ptp4l401ktimersoftd/323:34:213
106891380,1ptp4l401ktimersoftd/302:48:103
106891380,1ptp4l401ktimersoftd/302:40:593
106891380,1ptp4l401ktimersoftd/301:37:273
106891380,1ptp4l401ktimersoftd/301:18:103
106891380,1ptp4l401ktimersoftd/300:44:483
106891380,1ptp4l401ktimersoftd/300:14:593
106891380,1ptp4l401ktimersoftd/300:10:213
2721993731,3cyclictest41-21ksoftirqd/323:01:533
2721993718,7cyclictest41-21ksoftirqd/322:27:223
106891370,1ptp4l401ktimersoftd/323:48:063
106891370,1ptp4l401ktimersoftd/302:59:243
106891370,1ptp4l401ktimersoftd/302:30:213
106891370,1ptp4l401ktimersoftd/301:04:563
106891370,1ptp4l401ktimersoftd/300:55:243
106891370,1ptp4l401ktimersoftd/300:40:583
106891370,1ptp4l401ktimersoftd/300:19:253
106891370,1ptp4l401ktimersoftd/300:03:313
106891370,1ptp4l401ktimersoftd/300:03:313
2714993624,10cyclictest33-21ksoftirqd/201:39:472
106891360,2ptp4l10455-21kworker/3:202:42:593
106891360,1ptp4l401ktimersoftd/302:02:473
106891360,1ptp4l401ktimersoftd/302:01:023
106891360,1ptp4l401ktimersoftd/300:59:463
272199350,3cyclictest121rcu_preempt23:27:163
106891350,1ptp4l401ktimersoftd/302:54:243
106891350,1ptp4l401ktimersoftd/302:21:213
106891350,1ptp4l401ktimersoftd/301:23:283
106891350,0ptp4l401ktimersoftd/323:02:083
2721993422,9cyclictest41-21ksoftirqd/322:06:513
2721993420,11cyclictest41-21ksoftirqd/323:22:093
272199341,3cyclictest121rcu_preempt01:51:473
2714993428,3cyclictest33-21ksoftirqd/202:36:582
106891340,1ptp4l401ktimersoftd/322:12:543
87622330,4sleep0270399cyclictest00:50:390
2721993329,2cyclictest41-21ksoftirqd/321:56:503
272199331,7cyclictest121rcu_preempt02:14:543
2709993324,6cyclictest25-21ksoftirqd/123:31:541
2721993226,3cyclictest41-21ksoftirqd/322:32:123
106891320,0ptp4l401ktimersoftd/302:34:513
2721993118,3cyclictest41-21ksoftirqd/300:22:123
2714993126,3cyclictest33-21ksoftirqd/202:16:572
2714993125,3cyclictest33-21ksoftirqd/203:01:582
2721993025,3cyclictest41-21ksoftirqd/322:51:523
2721993024,3cyclictest41-21ksoftirqd/321:47:073
2714993024,3cyclictest33-21ksoftirqd/223:16:532
2714993024,3cyclictest33-21ksoftirqd/200:22:122
2714993018,9cyclictest33-21ksoftirqd/221:47:102
253722300,5sleep225375-21gltestperf01:07:112
2721992924,3cyclictest41-21ksoftirqd/322:21:523
2721992924,3cyclictest41-21ksoftirqd/322:21:523
2721992924,3cyclictest41-21ksoftirqd/321:57:113
2721992923,3cyclictest41-21ksoftirqd/323:17:123
2721992923,3cyclictest41-21ksoftirqd/322:37:083
271499294,3cyclictest121rcu_preempt01:52:182
271499294,3cyclictest121rcu_preempt01:52:182
2714992924,3cyclictest33-21ksoftirqd/202:42:172
2714992924,3cyclictest33-21ksoftirqd/201:26:552
2714992924,3cyclictest33-21ksoftirqd/200:37:092
2714992924,3cyclictest33-21ksoftirqd/200:07:132
2714992923,3cyclictest33-21ksoftirqd/223:42:092
2714992918,9cyclictest33-21ksoftirqd/200:57:062
270399290,3cyclictest121rcu_preempt23:35:530
2721992822,3cyclictest41-21ksoftirqd/322:22:213
271499284,3cyclictest33-21ksoftirqd/223:27:162
2714992823,3cyclictest33-21ksoftirqd/223:36:532
2714992823,3cyclictest33-21ksoftirqd/222:06:512
2714992823,3cyclictest33-21ksoftirqd/201:46:562
2714992823,3cyclictest33-21ksoftirqd/200:42:062
2714992822,3cyclictest33-21ksoftirqd/223:51:542
2714992822,3cyclictest33-21ksoftirqd/222:17:102
2714992822,3cyclictest33-21ksoftirqd/222:17:102
2714992821,4cyclictest33-21ksoftirqd/202:27:212
2714992818,8cyclictest33-21ksoftirqd/201:12:502
2714992811,15cyclictest33-21ksoftirqd/223:38:042
270999283,22cyclictest4854-21sed00:12:231
2714992722,3cyclictest33-21ksoftirqd/222:36:522
2714992722,3cyclictest33-21ksoftirqd/221:57:112
2714992722,3cyclictest33-21ksoftirqd/201:47:252
2714992721,3cyclictest33-21ksoftirqd/221:52:062
2714992721,3cyclictest33-21ksoftirqd/200:51:252
2714992721,3cyclictest33-21ksoftirqd/200:01:192
2714992720,4cyclictest20969-21sh02:07:272
2714992710,15cyclictest33-21ksoftirqd/202:51:242
2709992720,4cyclictest25-21ksoftirqd/100:33:421
2714992621,3cyclictest33-21ksoftirqd/223:52:132
2714992621,3cyclictest33-21ksoftirqd/222:27:112
2714992621,3cyclictest33-21ksoftirqd/221:32:092
2714992621,3cyclictest33-21ksoftirqd/202:02:162
2714992621,3cyclictest33-21ksoftirqd/200:02:132
2714992621,3cyclictest33-21ksoftirqd/200:02:132
2714992620,3cyclictest33-21ksoftirqd/223:18:332
2714992619,4cyclictest33-21ksoftirqd/222:13:472
271499261,2cyclictest121rcu_preempt00:52:092
2703992619,4cyclictest9-21ksoftirqd/022:50:110
286362250,3sleep0270399cyclictest00:04:140
286362250,3sleep0270399cyclictest00:04:140
2714992520,3cyclictest33-21ksoftirqd/223:22:162
2714992520,3cyclictest33-21ksoftirqd/222:57:062
2714992520,3cyclictest33-21ksoftirqd/201:02:132
2714992519,3cyclictest33-21ksoftirqd/222:52:062
2714992518,4cyclictest33-21ksoftirqd/222:07:532
2714992518,4cyclictest33-21ksoftirqd/221:40:312
2709992519,3cyclictest25-21ksoftirqd/122:07:281
2703992515,8cyclictest10645-21sh23:46:530
124322250,2sleep20-21swapper/200:21:502
2714992420,3cyclictest33-21ksoftirqd/223:02:112
2714992418,3cyclictest33-21ksoftirqd/221:42:032
2714992418,3cyclictest33-21ksoftirqd/201:36:302
2714992417,4cyclictest33-21ksoftirqd/223:10:042
2714992417,4cyclictest33-21ksoftirqd/222:42:022
271499241,3cyclictest33-21ksoftirqd/200:16:252
2709992418,3cyclictest25-21ksoftirqd/121:55:521
2709992418,3cyclictest25-21ksoftirqd/121:35:041
2709992417,4cyclictest25-21ksoftirqd/123:18:261
2709992417,4cyclictest25-21ksoftirqd/123:14:321
2703992419,3cyclictest9-21ksoftirqd/002:54:210
2703992418,3cyclictest9-21ksoftirqd/000:24:410
2312022417,3sleep09-21ksoftirqd/002:43:140
312612230,18sleep00-21swapper/022:27:190
2714992318,3cyclictest33-21ksoftirqd/202:37:122
2714992318,3cyclictest33-21ksoftirqd/202:17:122
2714992317,3cyclictest33-21ksoftirqd/201:21:552
2714992317,3cyclictest33-21ksoftirqd/200:27:142
2714992316,4cyclictest7473-21cut22:47:192
2714992316,4cyclictest33-21ksoftirqd/222:38:362
2709992318,3cyclictest25-21ksoftirqd/100:07:071
2709992317,3cyclictest25-21ksoftirqd/100:27:151
2709992316,4cyclictest5544-21grep22:42:111
2709992316,4cyclictest25-21ksoftirqd/122:55:171
270999231,19cyclictest3567-21ssh01:51:331
270999231,19cyclictest27548-21apt-get22:22:041
270999230,20cyclictest14247-21ssh23:49:461
270399239,11cyclictest7589-21fschecks_time01:22:110
2703992318,3cyclictest9-21ksoftirqd/022:03:540
2703992317,3cyclictest9-21ksoftirqd/023:56:470
2703992317,3cyclictest9-21ksoftirqd/023:51:450
2703992316,4cyclictest2573-21entropy01:17:110
2703992316,4cyclictest23809-21apt-get23:22:040
2703992315,5cyclictest10699-21snmp_o5powerctl22:52:170
2703992314,6cyclictest46950irq/100-ens3-Tx23:37:070
271499223,3cyclictest121rcu_preempt00:32:052
2714992217,3cyclictest33-21ksoftirqd/202:22:212
2714992215,5cyclictest33-21ksoftirqd/201:27:132
270999223,16cyclictest2679-21sed22:37:101
2709992217,3cyclictest25-21ksoftirqd/122:15:191
2709992217,3cyclictest25-21ksoftirqd/102:58:051
2709992216,4cyclictest25-21ksoftirqd/100:48:311
2709992215,4cyclictest25-21ksoftirqd/122:47:391
2709992215,4cyclictest25-21ksoftirqd/101:22:121
2709992215,4cyclictest20398-21sh23:56:531
270999221,18cyclictest4630-21ssh23:40:101
270399228,3cyclictest161182cstates02:37:130
270399227,12cyclictest31306-21irqrtprio00:07:120
270399223,17cyclictest26685-21head01:07:240
2703992216,3cyclictest28241-21diskmemload03:01:470
2703992215,4cyclictest16959-21ssh01:32:070
270399221,19cyclictest0-21swapper/001:14:320
270399221,18cyclictest27553-21chrt22:22:040
270399220,20cyclictest0-21swapper/022:42:130
2714992115,4cyclictest33-21ksoftirqd/222:22:212
2714992113,5cyclictest30827-21df02:52:132
270999218,10cyclictest29610-21uname23:32:141
2709992116,3cyclictest25-21ksoftirqd/102:47:511
2709992116,3cyclictest25-21ksoftirqd/102:20:251
2709992115,3cyclictest25-21ksoftirqd/122:19:121
2709992115,3cyclictest25-21ksoftirqd/122:19:121
2709992115,3cyclictest25-21ksoftirqd/122:05:341
2709992115,3cyclictest25-21ksoftirqd/101:44:081
2709992115,3cyclictest23548-21munin-plugin-st02:11:571
2709992114,4cyclictest6188-21expr21:37:041
2709992114,4cyclictest25-21ksoftirqd/102:39:281
270999211,3cyclictest0-21swapper/102:34:181
270999211,17cyclictest9180-21ssh01:57:011
270999211,17cyclictest4713-21df_inode01:52:131
270999211,17cyclictest4713-21df_inode01:52:131
270999211,17cyclictest4330-21ssh02:24:381
270999211,17cyclictest28854-21ssh00:37:171
270999211,17cyclictest13849-21ssh00:55:541
270999211,17cyclictest11897-21ssh00:20:551
270999211,13cyclictest0-21swapper/101:16:511
270999210,19cyclictest767-21ssh02:53:511
270999210,18cyclictest9571-21taskset02:30:181
270999210,17cyclictest21185-21phc2sys01:02:161
270399212,17cyclictest23829-21tr00:32:160
2703992117,2cyclictest0-21swapper/021:51:520
2703992116,3cyclictest9-21ksoftirqd/022:19:470
2703992116,3cyclictest9-21ksoftirqd/022:19:470
2703992116,3cyclictest0-21swapper/001:01:320
2703992115,3cyclictest9-21ksoftirqd/022:58:010
2703992115,3cyclictest9-21ksoftirqd/022:36:540
2703992115,3cyclictest9-21ksoftirqd/021:46:190
2703992115,3cyclictest25400-21latency_hist00:01:540
270399211,4cyclictest4875-21chrt21:35:150
270399211,4cyclictest21999-21ssh01:37:090
2703992114,4cyclictest22459-21sed23:17:160
2703992114,4cyclictest19692-21if_enp1s0.102:07:140
2703992114,4cyclictest14449-21ls02:02:110
2703992114,3cyclictest4348-21sh01:52:090
2703992114,3cyclictest4348-21sh01:52:090
2703992113,4cyclictest1055-21runrttasks23:07:070
270399211,18cyclictest0-21swapper/001:51:330
270399211,17cyclictest28241-21diskmemload00:17:150
270399211,17cyclictest228932sleep001:04:120
270399211,17cyclictest0-21swapper/000:30:510
161482210,2sleep10-21swapper/100:24:461
270999202,12cyclictest29920-21apt-get22:27:041
2709992015,3cyclictest25-21ksoftirqd/101:21:441
270999201,4cyclictest12426-21hddtemp_smartct22:57:101
2709992014,4cyclictest14251-21/usr/sbin/munin23:02:061
270999201,3cyclictest28241-21diskmemload23:57:141
270999201,3cyclictest14041-21ssh02:01:571
2709992013,4cyclictest16543-21awk21:57:131
270999201,17cyclictest27742-21ssh02:15:541
270999201,17cyclictest20135-21ssh01:34:351
270999201,17cyclictest0-21swapper/100:57:261
270999201,14cyclictest24889-21apt-get01:07:071
270999200,18cyclictest0-21swapper/100:42:071
270999200,17cyclictest32589-21grep22:32:091
270399204,9cyclictest23953-21apt-get02:12:100
2703992014,4cyclictest1098-21ptp4l-jitter22:32:150
2703992014,3cyclictest9-21ksoftirqd/021:41:460
2703992014,3cyclictest24396-21awk22:12:210
2703992014,3cyclictest14610-21cut23:02:100
270399201,3cyclictest28241-21diskmemload01:43:530
2703992013,4cyclictest6011-21/usr/sbin/munin02:27:270
2703992013,4cyclictest18981-21/usr/sbin/munin23:12:190
270399201,14cyclictest3257-21tr00:12:080
270399201,14cyclictest0-21swapper/001:28:410
2703992011,3cyclictest10133-21expr00:52:100
270399200,4cyclictest22367-21chrt22:10:240
270399200,18cyclictest0-21swapper/000:42:070
270399200,17cyclictest28875-21grep00:37:170
2709991914,3cyclictest25-21ksoftirqd/123:45:521
2709991914,3cyclictest25-21ksoftirqd/101:38:341
2709991914,3cyclictest20750-21/usr/sbin/munin02:42:201
2709991912,4cyclictest8573-21expr21:42:031
2709991912,4cyclictest12885-21irqrtprio01:27:131
2709991912,4cyclictest10935-21expr21:47:051
270399193,10cyclictest28755-21apt-get02:17:100
2703991914,3cyclictest9-21ksoftirqd/023:28:240
2703991914,2cyclictest0-21swapper/002:22:100
2703991913,3cyclictest15996-21cat21:57:100
2703991913,3cyclictest11248-21cat21:47:080
2703991912,4cyclictest26454-21irqrtprio02:47:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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