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2026-08-07 - 14:09
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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 Fri Aug 07, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
949321520,4sleep21265899cyclictest01:01:592
2832921430,4sleep21265899cyclictest01:21:472
106891970,3ptp4l401ktimersoftd/321:18:213
106891970,3ptp4l401ktimersoftd/321:18:213
115172930,7sleep3401ktimersoftd/302:42:583
115172930,7sleep3401ktimersoftd/302:42:583
106891820,1ptp4l401ktimersoftd/300:23:363
106891760,1ptp4l401ktimersoftd/300:44:313
106891760,10ptp4l401ktimersoftd/301:51:593
106891690,8ptp4l401ktimersoftd/302:14:243
106891690,1ptp4l401ktimersoftd/301:29:123
71342680,3sleep01264599cyclictest23:55:210
25402660,4sleep31266399cyclictest23:11:523
20202660,2sleep10-21swapper/122:01:521
106891650,1ptp4l401ktimersoftd/300:27:243
106891650,1ptp4l401ktimersoftd/300:10:383
170982630,1sleep00-21swapper/001:43:210
12658996213,25cyclictest18813-21sh23:33:492
106891610,1ptp4l401ktimersoftd/300:41:053
124642594,43sleep00-21swapper/021:20:240
124642594,43sleep00-21swapper/021:20:240
106891590,1ptp4l401ktimersoftd/300:51:503
106891590,1ptp4l401ktimersoftd/300:51:503
131412580,2sleep10-21swapper/100:01:281
106891580,1ptp4l401ktimersoftd/302:35:433
106891580,1ptp4l401ktimersoftd/301:24:403
18132570,1sleep20-21swapper/223:49:402
106891570,1ptp4l401ktimersoftd/321:25:563
106891560,1ptp4l401ktimersoftd/323:43:283
106891550,1ptp4l401ktimersoftd/301:48:573
88552520,2sleep10-21swapper/102:07:471
48862500,3sleep0101ktimersoftd/002:36:480
48862500,3sleep0101ktimersoftd/002:36:480
1264599501,11cyclictest30938-21tr23:46:380
122892483,19sleep2121rcu_preempt21:18:082
122892483,19sleep2121rcu_preempt21:18:082
1264599471,17cyclictest10271-21grep22:21:380
1264599470,16cyclictest15031-21latency_hist21:26:210
68682460,1sleep30-21swapper/302:06:443
106891460,2ptp4l22564-21kworker/3:201:58:503
106891450,1ptp4l401ktimersoftd/300:32:523
1265899440,3cyclictest2796-21chrt00:22:132
1264599435,6cyclictest9859-21grep01:36:430
12663994233,6cyclictest41-21ksoftirqd/301:11:393
1265899420,2cyclictest0-21swapper/201:00:202
1183424220,9sleep10-21swapper/121:16:501
1183424220,9sleep10-21swapper/121:16:501
106891420,1ptp4l401ktimersoftd/300:14:223
1265899403,30cyclictest20755-21apt-get23:36:382
106891400,1ptp4l401ktimersoftd/323:34:173
106891400,1ptp4l401ktimersoftd/321:31:403
106891400,1ptp4l401ktimersoftd/302:30:243
1265899393,29cyclictest31716-21apt-get02:31:412
1264599394,4cyclictest9-21ksoftirqd/001:06:440
106891390,1ptp4l401ktimersoftd/323:27:193
106891390,1ptp4l401ktimersoftd/302:38:423
106891390,1ptp4l401ktimersoftd/302:38:423
106891390,1ptp4l401ktimersoftd/300:57:053
292502380,3sleep1231rcuc/123:01:381
1265899381,30cyclictest14421-21apt-get01:41:392
1264599384,3cyclictest9-21ksoftirqd/001:32:390
1264599382,5cyclictest9-21ksoftirqd/023:27:080
1264599382,5cyclictest9-21ksoftirqd/000:21:550
1264599381,5cyclictest9-21ksoftirqd/023:40:010
1264599381,5cyclictest9-21ksoftirqd/000:51:000
1264599381,5cyclictest9-21ksoftirqd/000:51:000
1264599380,5cyclictest9-21ksoftirqd/000:16:490
106891380,1ptp4l401ktimersoftd/323:23:283
106891380,1ptp4l401ktimersoftd/302:04:423
106891380,1ptp4l401ktimersoftd/301:45:243
106891380,1ptp4l401ktimersoftd/301:08:193
106891380,1ptp4l401ktimersoftd/301:03:363
106891380,1ptp4l401ktimersoftd/300:47:393
106891380,1ptp4l401ktimersoftd/300:47:393
106891380,1ptp4l401ktimersoftd/300:04:593
106891380,0ptp4l401ktimersoftd/302:22:123
1265899372,28cyclictest23357-21apt-get00:11:352
1265899372,27cyclictest17451-21apt-get01:11:392
12658993721,13cyclictest33-21ksoftirqd/223:01:112
1265899370,3cyclictest3145-21ssh23:51:322
1264599373,6cyclictest9-21ksoftirqd/000:11:200
1264599373,5cyclictest9-21ksoftirqd/023:01:440
1264599372,5cyclictest9-21ksoftirqd/001:57:120
1264599371,6cyclictest9-21ksoftirqd/000:11:530
106891370,1ptp4l401ktimersoftd/323:58:363
106891370,1ptp4l401ktimersoftd/323:55:593
106891370,1ptp4l401ktimersoftd/323:36:543
106891370,1ptp4l401ktimersoftd/301:37:253
106891370,1ptp4l401ktimersoftd/301:33:213
1265899363,26cyclictest5086-21apt-get22:11:352
1264599362,6cyclictest9-21ksoftirqd/002:28:580
1264599362,5cyclictest9-21ksoftirqd/002:16:530
1264599361,5cyclictest9-21ksoftirqd/023:33:220
106891360,1ptp4l401ktimersoftd/323:49:003
106891360,1ptp4l401ktimersoftd/321:50:503
106891360,1ptp4l401ktimersoftd/321:41:233
106891360,1ptp4l401ktimersoftd/300:20:213
106891360,0ptp4l401ktimersoftd/302:50:583
106891360,0ptp4l401ktimersoftd/302:17:343
1265899354,26cyclictest10614-21apt-get00:31:382
1265899353,26cyclictest18326-21apt-get21:31:342
1265899352,26cyclictest6531-21apt-get02:06:412
1265899352,26cyclictest30388-21apt-get21:56:332
1265899351,31cyclictest23115-21grep02:21:492
12658993513,19cyclictest24729-21sh00:46:062
1265899350,4cyclictest4838-21expr01:31:422
1265899350,4cyclictest16871-21/usr/sbin/munin22:36:422
1265899350,4cyclictest14421-21sh23:29:442
1264599356,8cyclictest5557-21diskmemload00:55:540
1264599356,8cyclictest5557-21diskmemload00:55:540
1264599355,7cyclictest9-21ksoftirqd/001:13:420
1264599355,6cyclictest9-21ksoftirqd/001:23:280
1264599353,6cyclictest9-21ksoftirqd/002:44:230
1264599353,6cyclictest9-21ksoftirqd/002:44:230
1264599353,5cyclictest9-21ksoftirqd/023:11:370
1264599352,5cyclictest9-21ksoftirqd/023:58:440
1264599350,6cyclictest9-21ksoftirqd/002:25:000
1265899346,24cyclictest22542-21expr01:16:412
1265899343,24cyclictest32753-21apt-get22:01:342
1265899342,29cyclictest30107-21unixbench_singl00:16:552
1265899342,26cyclictest14019-21apt-get02:46:432
1265899342,25cyclictest8405-21apt-get23:56:392
12658993417,14cyclictest33-21ksoftirqd/222:34:172
12658993414,17cyclictest28723-21/usr/sbin/munin23:01:392
12658993414,17cyclictest13115-21cat21:21:342
12658993412,19cyclictest3462-21bc23:16:352
1265899340,4cyclictest3345-21sed23:16:242
1265899340,4cyclictest30828-21idleruntime00:51:452
1265899340,4cyclictest30828-21idleruntime00:51:452
1265899340,4cyclictest18287-21snmp_o5powerctl02:16:552
1265899340,4cyclictest10989-21runrttasks01:36:542
1264599341,5cyclictest9-21ksoftirqd/001:56:070
1264599341,5cyclictest9-21ksoftirqd/000:34:320
1264599340,5cyclictest0-21swapper/001:20:390
1265899332,25cyclictest21684-21apt-get22:46:382
12658993314,16cyclictest15854-21cut00:36:432
12658993313,17cyclictest19482-21expr01:46:402
12658993312,18cyclictest15597-21sh01:09:032
1265899330,4cyclictest802-21cat01:26:502
1265899330,4cyclictest31578-21tail23:06:392
1265899330,3cyclictest9347-21cat02:41:442
1265899330,3cyclictest9347-21cat02:41:442
1265899330,3cyclictest9037-21sed22:16:542
1265899330,3cyclictest5557-21diskmemload02:11:512
1265899330,3cyclictest5218-21ssh02:04:552
1265899330,3cyclictest29384-21/usr/sbin/munin21:51:492
1265899330,2cyclictest0-21swapper/200:49:412
1265899330,2cyclictest0-21swapper/200:49:412
1265899330,2cyclictest0-21swapper/200:06:472
1264599335,7cyclictest9-21ksoftirqd/000:41:300
1264599331,6cyclictest9-21ksoftirqd/002:35:210
12663993224,5cyclictest41-21ksoftirqd/322:41:233
1265899326,22cyclictest21583-21cat22:46:232
1265899323,23cyclictest26795-21apt-get02:26:422
1265899323,23cyclictest12183-21apt-get22:26:342
12658993214,15cyclictest26679-21needreboot21:46:422
1265899321,2cyclictest25726-21ssh01:51:542
1265899320,3cyclictest7345-21mailstats23:21:472
1265899320,2cyclictest0-21swapper/200:26:452
1264599326,7cyclictest9-21ksoftirqd/001:30:280
1264599325,6cyclictest9-21ksoftirqd/000:38:260
1264599325,6cyclictest1664-21ssh02:01:420
1264599321,5cyclictest9-21ksoftirqd/022:41:460
1264599321,4cyclictest9-21ksoftirqd/000:03:350
106891320,1ptp4l401ktimersoftd/321:57:293
106891320,1ptp4l401ktimersoftd/321:39:353
106891320,10ptp4l401ktimersoftd/301:18:223
1265899313,24cyclictest13278-21cat00:01:372
1265899311,25cyclictest0-21swapper/222:21:342
1265899311,24cyclictest0-21swapper/222:51:332
12658993112,16cyclictest23439-21cstates21:41:362
1265899310,4cyclictest30153-21sh23:46:242
12649993126,3cyclictest25-21ksoftirqd/123:36:241
1264599314,4cyclictest9-21ksoftirqd/023:42:090
1264599313,5cyclictest0-21swapper/021:32:500
1264599311,5cyclictest9-21ksoftirqd/022:36:440
1264599311,5cyclictest9-21ksoftirqd/002:47:040
1264599311,5cyclictest9-21ksoftirqd/000:58:120
106891310,1ptp4l401ktimersoftd/322:50:153
106891310,0ptp4l401ktimersoftd/323:09:513
1265899305,22cyclictest30484-21ptp4l-jitter01:56:502
1265899300,2cyclictest0-21swapper/221:36:412
12649993025,3cyclictest25-21ksoftirqd/123:41:361
12649993025,3cyclictest25-21ksoftirqd/102:36:591
12649993025,3cyclictest25-21ksoftirqd/102:36:591
12649993024,3cyclictest25-21ksoftirqd/101:51:471
12649993024,3cyclictest25-21ksoftirqd/100:51:451
12649993024,3cyclictest25-21ksoftirqd/100:51:451
1264599306,9cyclictest9-21ksoftirqd/001:49:340
1264599305,5cyclictest9-21ksoftirqd/023:21:410
1264599304,7cyclictest9-21ksoftirqd/021:26:430
1264599304,7cyclictest9-21ksoftirqd/000:29:180
1264599304,6cyclictest12541-21fschecks_time22:26:380
1264599303,7cyclictest9-21ksoftirqd/001:03:090
1264599302,7cyclictest9-21ksoftirqd/002:11:320
106891300,1ptp4l401ktimersoftd/323:00:543
66462290,4sleep1241ktimersoftd/101:32:141
12663992922,4cyclictest41-21ksoftirqd/323:16:493
1265899296,20cyclictest5032-21irqrtprio02:36:492
1265899296,20cyclictest5032-21irqrtprio02:36:492
1265899294,21cyclictest15265-21processes21:26:232
12649992924,3cyclictest25-21ksoftirqd/102:46:471
12649992924,3cyclictest25-21ksoftirqd/101:11:261
12649992923,3cyclictest25-21ksoftirqd/123:56:261
12649992923,3cyclictest25-21ksoftirqd/100:26:251
1264599294,7cyclictest9-21ksoftirqd/002:06:550
106891290,1ptp4l401ktimersoftd/322:26:233
12649992823,3cyclictest25-21ksoftirqd/121:41:221
12649992823,3cyclictest25-21ksoftirqd/102:01:431
12649992823,3cyclictest25-21ksoftirqd/100:56:471
12649992823,3cyclictest25-21ksoftirqd/100:11:441
1264999282,2cyclictest121rcu_preempt23:26:351
1264599285,6cyclictest22966-21gpgv21:41:220
1264599284,8cyclictest9-21ksoftirqd/021:46:410
1264599283,4cyclictest0-21swapper/021:55:240
1264599282,5cyclictest9-21ksoftirqd/022:56:430
1264599282,3cyclictest9-21ksoftirqd/022:07:470
1265899277,17cyclictest3956-21sendmail_mailqu22:06:462
12649992722,3cyclictest25-21ksoftirqd/123:46:361
12649992722,3cyclictest25-21ksoftirqd/100:21:251
12649992721,4cyclictest25-21ksoftirqd/102:31:281
12649992721,3cyclictest25-21ksoftirqd/123:36:551
12649992721,3cyclictest25-21ksoftirqd/122:16:431
12649992721,3cyclictest25-21ksoftirqd/100:31:451
1264599273,3cyclictest9-21ksoftirqd/022:03:420
106891270,1ptp4l401ktimersoftd/322:09:283
12663992619,4cyclictest41-21ksoftirqd/322:15:073
12649992621,3cyclictest25-21ksoftirqd/123:21:431
12649992621,3cyclictest25-21ksoftirqd/122:41:421
12649992621,3cyclictest25-21ksoftirqd/121:51:351
12649992621,3cyclictest25-21ksoftirqd/121:31:391
12649992621,3cyclictest25-21ksoftirqd/121:26:251
12649992620,3cyclictest25-21ksoftirqd/122:11:231
12649992620,3cyclictest25-21ksoftirqd/101:51:281
12649992620,3cyclictest25-21ksoftirqd/101:31:271
12649992620,3cyclictest25-21ksoftirqd/100:41:451
1264599265,6cyclictest5793-21sed22:11:420
1264599263,8cyclictest9-21ksoftirqd/021:41:450
12645992620,3cyclictest9-21ksoftirqd/022:51:230
106891260,10ptp4l401ktimersoftd/322:51:583
1266399259,12cyclictest14689-21cpuspeed_turbos22:31:363
12649992521,3cyclictest25-21ksoftirqd/101:16:271
12649992520,3cyclictest25-21ksoftirqd/122:26:351
12649992519,4cyclictest25-21ksoftirqd/100:06:441
12649992519,3cyclictest25-21ksoftirqd/122:11:371
12649992519,3cyclictest25-21ksoftirqd/121:26:211
12649992519,3cyclictest25-21ksoftirqd/102:21:461
12649992519,3cyclictest25-21ksoftirqd/102:21:281
12649992519,3cyclictest25-21ksoftirqd/101:36:481
106891250,1ptp4l401ktimersoftd/322:01:353
106891250,1ptp4l401ktimersoftd/321:52:043
198262240,2sleep30-21swapper/322:41:413
12663992418,3cyclictest41-21ksoftirqd/323:02:293
12649992419,3cyclictest25-21ksoftirqd/123:56:261
12649992419,3cyclictest25-21ksoftirqd/122:56:231
12649992419,3cyclictest25-21ksoftirqd/122:36:221
12649992419,3cyclictest25-21ksoftirqd/102:31:431
12649992419,3cyclictest25-21ksoftirqd/102:11:481
12649992419,3cyclictest25-21ksoftirqd/101:56:461
12649992419,3cyclictest25-21ksoftirqd/101:16:461
12649992419,3cyclictest25-21ksoftirqd/100:26:391
12649992418,3cyclictest25-21ksoftirqd/123:11:531
1264599243,6cyclictest9-21ksoftirqd/023:16:420
1264599243,6cyclictest9-21ksoftirqd/023:10:100
12645992418,4cyclictest9-21ksoftirqd/022:35:050
12645992418,3cyclictest9-21ksoftirqd/022:17:330
12645992418,3cyclictest9-21ksoftirqd/021:58:420
106891240,1ptp4l401ktimersoftd/322:26:343
106891240,1ptp4l401ktimersoftd/322:16:353
106891240,1ptp4l401ktimersoftd/321:26:243
241022230,2sleep10-21swapper/121:41:411
12649992318,3cyclictest25-21ksoftirqd/122:36:401
12649992318,3cyclictest25-21ksoftirqd/101:01:421
12649992318,3cyclictest25-21ksoftirqd/100:46:551
12649992318,3cyclictest25-21ksoftirqd/100:46:551
12649992318,3cyclictest25-21ksoftirqd/100:36:491
12649992317,3cyclictest25-21ksoftirqd/123:10:061
12649992317,3cyclictest25-21ksoftirqd/122:56:371
12645992317,3cyclictest9-21ksoftirqd/022:53:300
12649992217,3cyclictest25-21ksoftirqd/122:50:181
12649992217,3cyclictest25-21ksoftirqd/121:56:501
12649992217,3cyclictest25-21ksoftirqd/121:46:501
12649992217,3cyclictest25-21ksoftirqd/101:21:421
12649992216,3cyclictest25-21ksoftirqd/101:41:401
12649992116,3cyclictest25-21ksoftirqd/102:41:491
12649992116,3cyclictest25-21ksoftirqd/102:41:491
12649992014,4cyclictest25-21ksoftirqd/123:17:281
12649991812,3cyclictest11507-21users22:21:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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