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2026-08-18 - 14:45
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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 Tue Aug 18, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
334221710,4sleep03242199cyclictest02:23:040
1068911050,4ptp4l401ktimersoftd/321:24:513
125752780,3sleep03242199cyclictest01:59:390
314092670,3sleep10-21swapper/101:12:471
314912663,49sleep230197-21/usr/sbin/munin21:22:542
3242199630,33cyclictest20537-21awk22:07:440
3242199620,27cyclictest3387-21awk00:43:010
98662610,2sleep30-21swapper/300:50:453
3242199611,35cyclictest3860-21cat23:37:470
3242199601,30cyclictest9918-21awk22:52:480
113922600,4sleep1241ktimersoftd/101:25:201
275112590,3sleep0101ktimersoftd/022:22:430
32421995713,24cyclictest25332-21diskmemload23:34:050
227342560,2sleep20-21swapper/200:30:362
75422550,2sleep20-21swapper/202:27:522
205082550,4sleep13242899cyclictest01:34:191
106891540,13ptp4l401ktimersoftd/300:35:103
35752490,1sleep20-21swapper/201:50:542
143291490,4getstats3244199cyclictest02:17:373
3242199481,38cyclictest17895-21apt-get01:32:400
3242199470,34cyclictest25367-21/usr/sbin/munin02:12:530
84852450,2sleep20-21swapper/200:16:072
3242199451,35cyclictest30897-21apt-get02:52:460
3242199451,35cyclictest30897-21apt-get02:52:460
3242199422,33cyclictest21009-21apt-get01:02:430
3242199422,33cyclictest21009-21apt-get01:02:430
3242199412,33cyclictest27643-21apt-get01:42:440
3242199412,32cyclictest11215-21apt-get22:57:400
32421994115,22cyclictest31995-21sh22:32:420
3242199410,30cyclictest0-21swapper/000:39:550
106891410,1ptp4l401ktimersoftd/300:43:313
3242199403,30cyclictest13085-21apt-get01:27:440
3242199402,32cyclictest19486-21apt-get02:07:450
3242199402,32cyclictest14540-21apt-get00:22:410
3242199402,30cyclictest13584-21apt-get23:02:400
3242199401,33cyclictest6582-21apt-get02:27:440
106891400,1ptp4l401ktimersoftd/302:34:043
3242199392,31cyclictest20910-21apt-get23:17:420
3242199392,30cyclictest29381-21apt-get22:27:400
32421993914,22cyclictest674-21grep00:07:470
106891390,1ptp4l401ktimersoftd/323:33:093
106891390,1ptp4l401ktimersoftd/301:02:583
106891390,1ptp4l401ktimersoftd/301:02:583
3244199382,12cyclictest9712-21ssh00:17:423
3242199383,30cyclictest0-21swapper/023:22:410
3242199383,30cyclictest0-21swapper/023:22:410
3242199382,32cyclictest14628-21apt-get02:02:440
3242199382,30cyclictest6450-21apt-get00:47:430
3242199382,29cyclictest30918-21apt-get01:12:420
32421993814,21cyclictest24665-21sh02:45:520
3242199381,30cyclictest32680-21apt-get21:27:390
3242199381,30cyclictest32680-21apt-get21:27:390
3242199381,30cyclictest18312-21apt-get23:12:420
3242199381,30cyclictest18312-21apt-get23:12:420
3242199380,4cyclictest30433-21ssh02:52:280
3242199380,4cyclictest12858-21/usr/sbin/munin02:32:550
317092383,22sleep031842-21grep21:23:000
106891380,1ptp4l401ktimersoftd/323:56:403
106891380,1ptp4l401ktimersoftd/323:52:113
106891380,1ptp4l401ktimersoftd/321:30:563
106891380,1ptp4l401ktimersoftd/321:30:563
106891380,1ptp4l401ktimersoftd/301:52:153
106891380,1ptp4l401ktimersoftd/301:32:203
106891380,1ptp4l401ktimersoftd/301:27:293
106891380,1ptp4l401ktimersoftd/301:09:433
106891380,1ptp4l401ktimersoftd/301:09:433
106891380,1ptp4l401ktimersoftd/300:41:183
106891380,1ptp4l401ktimersoftd/300:13:253
106891380,1ptp4l401ktimersoftd/300:08:033
106891380,0ptp4l401ktimersoftd/302:42:293
3244199372,12cyclictest19374-21ssh00:27:403
3242199372,27cyclictest10415-21apt-get21:47:370
3242199371,30cyclictest3394-21apt-get01:17:440
32421993712,22cyclictest25332-21diskmemload23:46:260
3242199370,3cyclictest97372sleep021:42:570
3242199370,32cyclictest0-21swapper/002:17:430
106891370,1ptp4l401ktimersoftd/323:46:193
106891370,1ptp4l401ktimersoftd/302:54:493
106891370,1ptp4l401ktimersoftd/302:54:493
106891370,1ptp4l401ktimersoftd/302:23:063
106891370,1ptp4l401ktimersoftd/302:01:493
106891370,1ptp4l401ktimersoftd/301:52:343
106891370,1ptp4l401ktimersoftd/301:41:333
106891370,1ptp4l401ktimersoftd/301:34:023
106891370,1ptp4l401ktimersoftd/300:56:303
106891370,1ptp4l401ktimersoftd/300:24:073
106891370,1ptp4l401ktimersoftd/300:02:323
106891370,0ptp4l401ktimersoftd/302:12:433
106891370,0ptp4l401ktimersoftd/301:12:383
3242199362,28cyclictest22798-21apt-get01:37:440
3242199361,32cyclictest0-21swapper/023:52:290
32421993613,20cyclictest3322-21unixbench_multi22:37:570
32421993613,20cyclictest25332-21diskmemload01:57:220
3242199361,30cyclictest25454-21apt-get01:07:350
3242199361,30cyclictest25454-21apt-get01:07:350
3242199361,29cyclictest25717-21apt-get23:27:370
3242199361,29cyclictest0-21swapper/022:02:370
106891360,1ptp4l401ktimersoftd/322:40:543
106891360,1ptp4l401ktimersoftd/322:27:223
106891360,1ptp4l401ktimersoftd/302:08:073
106891360,1ptp4l401ktimersoftd/301:45:513
106891360,1ptp4l401ktimersoftd/300:59:463
106891360,0ptp4l401ktimersoftd/323:58:253
106891360,0ptp4l401ktimersoftd/301:20:133
3242199352,29cyclictest0-21swapper/001:22:410
3242199351,30cyclictest17040-21/usr/sbin/munin23:07:510
3242199351,28cyclictest12785-21apt-get21:52:380
32421993510,22cyclictest19739-21fschecks_time00:27:440
3242199350,4cyclictest19037-21ssh02:39:310
3242199350,2cyclictest25332-21diskmemload00:53:290
3242199350,2cyclictest0-21swapper/000:32:450
3242199350,2cyclictest0-21swapper/000:16:560
32433993428,3cyclictest33-21ksoftirqd/201:37:312
3242199348,23cyclictest11430-21sed00:18:000
3242199347,24cyclictest6608-21grep22:47:410
3242199341,29cyclictest24320-21latency_hist22:17:270
3242199341,29cyclictest22282-21latency_hist23:57:290
3242199341,28cyclictest0-21swapper/021:37:370
32421993412,19cyclictest25332-21diskmemload23:58:100
3242199340,4cyclictest31139-21ssh00:06:000
106891340,1ptp4l401ktimersoftd/323:37:333
3242199337,23cyclictest4886-21irqrtprio22:42:470
3242199335,25cyclictest24854-21expr22:17:410
3242199330,2cyclictest0-21swapper/001:47:500
3242199330,2cyclictest0-21swapper/000:58:570
301962333,19sleep130272-21/usr/sbin/munin21:22:411
106891330,1ptp4l401ktimersoftd/323:11:023
106891330,11ptp4l401ktimersoftd/323:23:203
106891330,11ptp4l401ktimersoftd/323:23:203
32428993226,3cyclictest25-21ksoftirqd/123:37:281
3242199321,27cyclictest3004-21munin-node21:32:290
3242199321,27cyclictest3004-21munin-node21:32:290
106891320,1ptp4l401ktimersoftd/322:20:503
3244199313,8cyclictest22261-21apt-get22:12:403
32433993125,3cyclictest33-21ksoftirqd/202:37:482
3242899311,3cyclictest121rcu_preempt01:56:221
3242199311,27cyclictest15117-21/usr/sbin/munin21:57:380
106891310,0ptp4l401ktimersoftd/321:36:133
106891310,0ptp4l401ktimersoftd/321:36:133
3243399305,13cyclictest9778-21ssh01:57:432
32433993024,3cyclictest33-21ksoftirqd/202:57:332
32433993024,3cyclictest33-21ksoftirqd/202:57:332
106891300,1ptp4l401ktimersoftd/323:01:323
32433992923,3cyclictest33-21ksoftirqd/223:17:272
32433992923,3cyclictest33-21ksoftirqd/223:17:272
32433992922,3cyclictest33-21ksoftirqd/202:17:502
32428992924,3cyclictest25-21ksoftirqd/101:32:311
106891290,0ptp4l401ktimersoftd/322:46:423
32433992822,4cyclictest33-21ksoftirqd/221:32:252
32433992822,4cyclictest33-21ksoftirqd/221:32:252
32433992818,3cyclictest33-21ksoftirqd/223:50:072
32433992816,7cyclictest33-21ksoftirqd/201:07:432
32433992816,7cyclictest33-21ksoftirqd/201:07:432
3242899282,3cyclictest121rcu_preempt02:42:591
32428992823,3cyclictest25-21ksoftirqd/100:22:411
32428992822,4cyclictest25-21ksoftirqd/100:27:451
32441992721,4cyclictest41-21ksoftirqd/321:57:563
32441992720,4cyclictest41-21ksoftirqd/322:11:143
32433992721,3cyclictest33-21ksoftirqd/202:47:512
32433992721,3cyclictest33-21ksoftirqd/201:07:302
32433992721,3cyclictest33-21ksoftirqd/201:07:302
32433992720,4cyclictest33-21ksoftirqd/221:44:512
32428992722,3cyclictest25-21ksoftirqd/101:17:441
106891270,1ptp4l401ktimersoftd/322:34:263
32433992621,3cyclictest33-21ksoftirqd/202:42:482
32433992621,3cyclictest33-21ksoftirqd/201:12:442
32433992619,4cyclictest33-21ksoftirqd/223:05:092
32433992619,4cyclictest33-21ksoftirqd/222:27:392
32433992619,4cyclictest33-21ksoftirqd/221:54:432
32428992621,3cyclictest25-21ksoftirqd/102:32:591
32428992621,3cyclictest25-21ksoftirqd/102:27:451
32428992620,4cyclictest25-21ksoftirqd/101:07:451
32428992620,4cyclictest25-21ksoftirqd/101:07:451
32428992620,3cyclictest6947-21gltestperf00:47:471
106891260,1ptp4l401ktimersoftd/321:44:083
106891260,11ptp4l401ktimersoftd/321:40:453
106891260,10ptp4l401ktimersoftd/322:30:523
3243399255,11cyclictest24333-21ssh02:12:442
32433992519,3cyclictest33-21ksoftirqd/223:52:472
32433992519,3cyclictest33-21ksoftirqd/222:05:212
32433992518,4cyclictest33-21ksoftirqd/223:24:202
32433992518,4cyclictest33-21ksoftirqd/223:24:202
32433992511,11cyclictest18999-21sh00:59:442
3243399250,5cyclictest32415-21cyclictest22:14:202
32428992520,3cyclictest25-21ksoftirqd/123:57:481
32428992520,3cyclictest25-21ksoftirqd/123:27:381
32428992520,3cyclictest25-21ksoftirqd/102:22:561
32428992520,3cyclictest25-21ksoftirqd/102:17:441
32428992520,3cyclictest25-21ksoftirqd/101:42:481
32428992519,4cyclictest25-21ksoftirqd/123:37:411
32428992519,3cyclictest25-21ksoftirqd/122:55:511
32428992519,3cyclictest25-21ksoftirqd/122:48:281
32428992518,5cyclictest25-21ksoftirqd/100:37:441
32428992518,4cyclictest25-21ksoftirqd/122:27:101
32428992518,4cyclictest25-21ksoftirqd/122:02:331
318582250,3sleep232415-21cyclictest23:32:512
106891250,1ptp4l401ktimersoftd/322:52:523
3244199244,12cyclictest26046-21ssh02:47:443
32441992418,4cyclictest41-21ksoftirqd/322:04:273
32441992417,4cyclictest41-21ksoftirqd/322:52:133
32441992417,4cyclictest41-21ksoftirqd/302:45:353
32433992420,3cyclictest33-21ksoftirqd/202:26:552
32433992419,3cyclictest33-21ksoftirqd/200:52:452
32433992417,4cyclictest33-21ksoftirqd/222:54:052
32433992417,4cyclictest33-21ksoftirqd/222:47:342
32433992417,4cyclictest33-21ksoftirqd/222:45:542
32433992417,4cyclictest33-21ksoftirqd/200:46:302
32433992417,4cyclictest33-21ksoftirqd/200:33:452
32428992419,3cyclictest25-21ksoftirqd/123:52:501
32428992419,3cyclictest25-21ksoftirqd/123:47:491
32428992419,3cyclictest25-21ksoftirqd/121:57:551
32428992419,3cyclictest25-21ksoftirqd/102:47:511
32428992418,3cyclictest25-21ksoftirqd/121:32:381
32428992418,3cyclictest25-21ksoftirqd/121:32:381
32428992418,3cyclictest25-21ksoftirqd/102:12:511
32428992418,3cyclictest25-21ksoftirqd/101:04:361
32428992418,3cyclictest25-21ksoftirqd/101:04:361
32428992417,5cyclictest25-21ksoftirqd/101:37:451
32428992417,5cyclictest25-21ksoftirqd/100:19:181
32428992417,4cyclictest25-21ksoftirqd/121:55:461
32428992412,6cyclictest25-21ksoftirqd/100:42:431
106891240,1ptp4l401ktimersoftd/323:28:313
106891240,1ptp4l401ktimersoftd/323:17:543
106891240,1ptp4l401ktimersoftd/323:02:483
106891240,1ptp4l401ktimersoftd/321:52:563
106891240,1ptp4l401ktimersoftd/321:47:403
106891240,1ptp4l401ktimersoftd/302:27:493
106891240,1ptp4l401ktimersoftd/302:04:393
32433992318,3cyclictest8548-21grep01:22:452
32433992318,3cyclictest33-21ksoftirqd/223:57:552
32433992317,3cyclictest33-21ksoftirqd/202:07:502
32433992316,4cyclictest33-21ksoftirqd/222:20:402
32433992316,4cyclictest27849-21expr01:42:462
32428992318,3cyclictest25-21ksoftirqd/122:47:221
32428992318,3cyclictest25-21ksoftirqd/102:37:541
32428992318,3cyclictest25-21ksoftirqd/101:02:301
32428992317,3cyclictest25-21ksoftirqd/123:24:451
32428992317,3cyclictest25-21ksoftirqd/123:24:451
32428992317,3cyclictest25-21ksoftirqd/123:07:431
32428992317,3cyclictest25-21ksoftirqd/100:12:451
32428992317,3cyclictest25-21ksoftirqd/100:06:171
106891230,1ptp4l401ktimersoftd/323:12:433
106891230,1ptp4l401ktimersoftd/323:12:433
32433992217,3cyclictest33-21ksoftirqd/223:43:112
32433992216,3cyclictest33-21ksoftirqd/223:37:472
32433992216,3cyclictest33-21ksoftirqd/223:20:482
32433992216,3cyclictest33-21ksoftirqd/222:57:392
32433992216,3cyclictest33-21ksoftirqd/221:38:152
32433992215,4cyclictest9610-21sh00:17:382
32433992215,4cyclictest33-21ksoftirqd/201:52:502
32433992215,4cyclictest16526-21sh00:23:142
32433992215,4cyclictest13783-21sh02:33:532
32433992210,9cyclictest27899-21fschecks_count00:02:462
32428992217,3cyclictest25-21ksoftirqd/121:51:321
32428992217,3cyclictest25-21ksoftirqd/102:52:461
32428992217,3cyclictest25-21ksoftirqd/102:52:461
32428992217,3cyclictest25-21ksoftirqd/101:57:471
32428992217,3cyclictest25-21ksoftirqd/100:07:441
32428992216,3cyclictest25-21ksoftirqd/122:21:551
32428992215,4cyclictest594-21cut21:27:421
32428992215,4cyclictest594-21cut21:27:421
32428992214,5cyclictest11688-21grep22:57:451
32428992212,7cyclictest32292-21kworker/1:222:37:421
32433992116,3cyclictest33-21ksoftirqd/221:57:432
32433992115,4cyclictest15872-21/usr/sbin/munin23:08:002
32433992115,3cyclictest15522-21sh01:29:032
32433992112,3cyclictest33-21ksoftirqd/200:48:012
32433992110,9cyclictest25639-21/usr/sbin/munin23:27:432
32428992116,3cyclictest25-21ksoftirqd/122:17:271
32428992116,3cyclictest25-21ksoftirqd/102:02:471
32428992116,3cyclictest25-21ksoftirqd/101:47:541
32428992116,3cyclictest25-21ksoftirqd/100:37:301
32428992115,4cyclictest25-21ksoftirqd/123:22:281
32428992115,3cyclictest25-21ksoftirqd/123:03:481
32428992115,3cyclictest25-21ksoftirqd/121:44:371
32428992115,3cyclictest21302-21grep02:08:021
32428992114,4cyclictest25-21ksoftirqd/121:39:241
3243399207,11cyclictest25226-21ssh01:39:022
3243399202,15cyclictest3726-21tr21:32:412
3243399202,15cyclictest3726-21tr21:32:412
32433992015,3cyclictest33-21ksoftirqd/222:34:042
32433992015,3cyclictest33-21ksoftirqd/222:07:442
32433992014,3cyclictest601-21sh00:07:462
32433992014,3cyclictest33-21ksoftirqd/201:17:502
32433992014,3cyclictest29475-21sh00:37:472
32433992014,3cyclictest18141-21sh02:05:552
32433992013,4cyclictest10361-21acpi21:47:372
32428992014,4cyclictest29304-21/usr/sbin/munin22:27:551
32428992014,3cyclictest7888-21sh23:42:291
32428992013,4cyclictest540-21ptp4l-jitter22:32:501
32428992013,4cyclictest25-21ksoftirqd/122:11:121
16422200,16sleep20-21swapper/222:37:402
32433991913,3cyclictest33-21ksoftirqd/222:22:392
32428991914,3cyclictest25-21ksoftirqd/123:12:451
32428991914,3cyclictest25-21ksoftirqd/123:12:451
32428991913,4cyclictest11230-21sh00:52:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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