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2025-12-08 - 05:09
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 all highest latencies:
System rackbslot6.osadl.org (updated Mon Dec 08, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
993125060,7sleep29935-21phc2sys-jitter20:21:292
1985421510,5sleep01093799cyclictest00:31:130
1773911020,4ptp4l401ktimersoftd/320:23:023
95122790,5sleep39513-21sed21:26:403
208502710,2sleep30-21swapper/322:44:003
177391680,1ptp4l401ktimersoftd/323:37:353
4482670,4sleep3446-21grep22:16:303
31352670,2sleep20-21swapper/200:46:452
10937996526,6cyclictest9-21ksoftirqd/020:26:070
177391580,1ptp4l401ktimersoftd/323:11:523
177391580,1ptp4l401ktimersoftd/322:51:473
177391570,1ptp4l401ktimersoftd/323:20:163
10937995746,6cyclictest9-21ksoftirqd/000:11:250
10937995646,5cyclictest9-21ksoftirqd/022:41:230
177391550,1ptp4l401ktimersoftd/300:02:033
177391540,1ptp4l401ktimersoftd/301:05:343
177391540,1ptp4l401ktimersoftd/301:05:343
10937995443,6cyclictest9-21ksoftirqd/000:21:300
10937995443,5cyclictest9-21ksoftirqd/022:21:250
192102530,2sleep00-21swapper/023:17:060
10937995346,4cyclictest9-21ksoftirqd/000:01:160
10937995341,6cyclictest9-21ksoftirqd/022:16:230
1094799514,19cyclictest2794-21tr23:36:252
1094799513,13cyclictest15171-21sed20:31:282
1094799501,12cyclictest26631-21/usr/sbin/munin00:01:332
10937994939,5cyclictest9-21ksoftirqd/020:41:200
10937994918,4cyclictest9-21ksoftirqd/023:21:400
10937994918,4cyclictest9-21ksoftirqd/023:21:400
156452480,2sleep00-21swapper/001:38:500
1094799481,12cyclictest25293-21grep01:51:272
177391470,1ptp4l401ktimersoftd/300:24:023
1094799471,13cyclictest11731-21apt-get23:46:242
10937994736,6cyclictest9-21ksoftirqd/001:01:250
10937994736,6cyclictest9-21ksoftirqd/001:01:250
1094799462,20cyclictest29992-21sed21:01:352
1094799462,19cyclictest12443-21sed21:36:082
1094799462,19cyclictest12443-21sed21:36:082
177391450,2ptp4l20527-21kworker/3:123:45:363
177391450,1ptp4l401ktimersoftd/321:12:223
10937994519,3cyclictest9-21ksoftirqd/022:31:260
320452440,1sleep10-21swapper/100:07:131
1094799446,6cyclictest20949-21sh22:44:122
1094799442,16cyclictest16110-21/usr/sbin/munin01:01:332
1094799442,16cyclictest16110-21/usr/sbin/munin01:01:332
1094799441,11cyclictest3907-21diskmemload01:24:362
1094799440,12cyclictest3907-21diskmemload23:02:452
1094799440,12cyclictest13222-21idleruntime23:11:282
1094799440,11cyclictest987-21taskset00:09:582
1094799440,11cyclictest23072-21sensors23:21:352
1094799440,11cyclictest23072-21sensors23:21:352
325042430,2sleep10-21swapper/123:31:481
10937994337,3cyclictest9-21ksoftirqd/023:31:240
10937994322,4cyclictest9-21ksoftirqd/000:16:420
1094799424,13cyclictest14564-21ssh01:01:122
10937994237,3cyclictest9-21ksoftirqd/000:36:240
10937994232,5cyclictest9-21ksoftirqd/021:31:220
10937994232,5cyclictest9-21ksoftirqd/021:31:220
10937994215,4cyclictest9-21ksoftirqd/000:46:390
1094799410,8cyclictest29990-21if_enp1s022:11:292
10937994135,3cyclictest9-21ksoftirqd/001:21:260
10937994114,4cyclictest9-21ksoftirqd/023:36:240
177391400,1ptp4l401ktimersoftd/301:40:443
1094799400,15cyclictest25605-21smartctl01:11:382
10937994016,4cyclictest9-21ksoftirqd/021:06:390
10937994015,4cyclictest9-21ksoftirqd/001:11:440
1094299393,6cyclictest0-21swapper/100:31:241
1094299392,8cyclictest14964-21apt-get01:01:241
1094299392,8cyclictest14964-21apt-get01:01:241
1094299391,7cyclictest0-21swapper/121:36:221
1094299391,7cyclictest0-21swapper/121:36:221
10937993934,3cyclictest9-21ksoftirqd/023:26:410
10937993933,3cyclictest9-21ksoftirqd/023:01:320
10937993930,3cyclictest9-21ksoftirqd/000:01:120
10937993926,4cyclictest9-21ksoftirqd/023:56:110
10937993915,4cyclictest9-21ksoftirqd/001:42:240
177391380,1ptp4l401ktimersoftd/301:31:423
177391380,1ptp4l401ktimersoftd/300:51:163
177391380,1ptp4l401ktimersoftd/300:29:273
12432380,5sleep21247-21gltestperf21:11:262
1094299383,30cyclictest4845-21ssh01:26:241
10937993825,3cyclictest9-21ksoftirqd/021:06:070
10937993813,4cyclictest9-21ksoftirqd/023:14:140
10937993812,4cyclictest9-21ksoftirqd/001:31:330
177391370,1ptp4l401ktimersoftd/323:49:183
177391370,1ptp4l401ktimersoftd/321:45:363
177391370,1ptp4l401ktimersoftd/301:26:273
177391370,1ptp4l401ktimersoftd/300:59:313
177391370,1ptp4l401ktimersoftd/300:41:143
1094299371,6cyclictest10442-21snmp_o5powerctl01:31:411
10942993713,21cyclictest26203-21grep20:56:211
10942993712,21cyclictest1220-21/usr/sbin/munin00:46:361
10942993711,22cyclictest7870-21bc21:26:221
10937993732,3cyclictest9-21ksoftirqd/023:06:410
10937993732,3cyclictest9-21ksoftirqd/000:56:370
10937993728,3cyclictest9-21ksoftirqd/022:51:230
10937993713,3cyclictest9-21ksoftirqd/001:27:400
10937993712,4cyclictest9-21ksoftirqd/001:09:070
10937993712,4cyclictest9-21ksoftirqd/001:09:070
177391360,2ptp4l2951-21kworker/3:101:23:223
177391360,1ptp4l401ktimersoftd/322:56:433
177391360,1ptp4l401ktimersoftd/300:46:473
177391360,14ptp4l401ktimersoftd/321:56:283
177391360,0ptp4l401ktimersoftd/323:56:223
177391360,0ptp4l401ktimersoftd/322:34:193
1094799365,7cyclictest3907-21diskmemload00:32:272
1094799363,5cyclictest0-21swapper/223:59:292
1094299362,7cyclictest31853-21apt-get22:16:211
1094299362,6cyclictest26120-21apt-get23:26:231
1094299362,5cyclictest17835-21apt-get22:41:221
10942993612,21cyclictest24004-21sed22:46:411
10942993612,21cyclictest13172-21sed23:11:271
10942993611,21cyclictest27099-21expr22:06:241
10942993611,21cyclictest22810-21irqrtprio21:56:311
1094299360,33cyclictest0-21swapper/101:42:161
1093799363,3cyclictest121rcu_preempt20:31:070
1093799363,3cyclictest121rcu_preempt00:35:100
10937993630,3cyclictest9-21ksoftirqd/023:46:290
10937993630,3cyclictest9-21ksoftirqd/001:51:270
10937993630,3cyclictest9-21ksoftirqd/000:41:400
10937993630,3cyclictest9-21ksoftirqd/000:06:360
10937993625,3cyclictest9-21ksoftirqd/022:56:250
10937993622,11cyclictest9-21ksoftirqd/021:51:310
10937993610,5cyclictest9-21ksoftirqd/021:11:250
1093799360,3cyclictest121rcu_preempt22:36:300
177391350,1ptp4l401ktimersoftd/323:52:123
177391350,0ptp4l401ktimersoftd/322:47:083
177391350,0ptp4l401ktimersoftd/301:49:383
177391350,0ptp4l401ktimersoftd/301:12:423
1094799357,7cyclictest28531-21ssh23:27:492
1094799357,6cyclictest3907-21diskmemload00:12:572
1094299352,5cyclictest0-21swapper/121:46:201
10942993512,20cyclictest3546-21sed23:36:311
10942993512,19cyclictest12340-21sh21:36:081
10942993512,19cyclictest12340-21sh21:36:081
10942993511,20cyclictest4516-21snmp_o5powerctl21:16:321
1093799353,6cyclictest121rcu_preempt22:01:090
10937993530,3cyclictest9-21ksoftirqd/000:56:120
10937993529,3cyclictest9-21ksoftirqd/001:16:450
10937993521,7cyclictest9-21ksoftirqd/022:26:290
10937993512,4cyclictest9-21ksoftirqd/023:42:090
177391340,2ptp4l9561-21kworker/3:001:10:423
177391340,2ptp4l9561-21kworker/3:001:10:423
177391340,2ptp4l2951-21kworker/3:101:52:323
177391340,2ptp4l1316-21kworker/3:122:26:403
177391340,0ptp4l401ktimersoftd/300:09:403
1094799345,13cyclictest30301-21missed_timers00:41:352
1094299349,4cyclictest10158-21run-parts22:31:331
1094299347,5cyclictest6130-21sed22:26:411
1094299343,6cyclictest11084-21apt-get00:21:301
1094299342,5cyclictest18992-21apt-get20:41:191
1094299342,5cyclictest0-21swapper/120:36:201
10942993413,18cyclictest17109-21cat00:26:401
1093799349,4cyclictest9-21ksoftirqd/022:01:310
1093799349,4cyclictest9-21ksoftirqd/020:39:160
1093799344,6cyclictest121rcu_preempt21:26:290
10937993428,3cyclictest9-21ksoftirqd/022:46:330
10937993428,3cyclictest9-21ksoftirqd/020:51:080
10937993428,3cyclictest9-21ksoftirqd/020:31:100
10937993425,7cyclictest9-21ksoftirqd/020:56:360
10937993425,6cyclictest9-21ksoftirqd/022:16:090
10937993421,3cyclictest9-21ksoftirqd/021:46:250
177391330,2ptp4l16211-21kworker/3:200:17:123
177391330,2ptp4l1316-21kworker/3:122:25:143
177391330,1ptp4l401ktimersoftd/323:25:293
177391330,1ptp4l401ktimersoftd/323:25:293
177391330,1ptp4l401ktimersoftd/321:21:083
177391330,1ptp4l401ktimersoftd/300:32:383
177391330,0ptp4l401ktimersoftd/322:37:563
1094799332,6cyclictest321ktimersoftd/200:21:552
1094299339,4cyclictest21188-21gltestperf23:56:281
1094299338,4cyclictest322902chrt00:44:111
1094299338,3cyclictest0-21swapper/123:25:581
1094299338,3cyclictest0-21swapper/123:25:581
1094299337,5cyclictest13999-21missed_timers01:36:331
1094299332,6cyclictest1850-21apt-get22:21:241
1094299332,6cyclictest11871-21snmp_o5powerctl00:56:391
1094299332,5cyclictest8167-21apt-get23:06:231
1094299332,5cyclictest26913-21snmp_o5powerctl00:01:381
1094299332,5cyclictest0-21swapper/121:11:211
1094299332,3cyclictest0-21swapper/122:56:221
10942993315,15cyclictest25-21ksoftirqd/121:06:111
10942993311,19cyclictest3907-21diskmemload22:54:301
1093799339,4cyclictest9-21ksoftirqd/001:46:280
10937993328,3cyclictest9-21ksoftirqd/020:56:070
10937993327,3cyclictest9-21ksoftirqd/021:21:080
1093799330,10cyclictest9-21ksoftirqd/022:06:270
177391320,1ptp4l401ktimersoftd/323:10:023
177391320,1ptp4l401ktimersoftd/300:36:253
1094799324,14cyclictest825-21ssh23:33:172
1094799321,28cyclictest28157-21cron21:01:062
1094299329,3cyclictest28515-1kworker/u9:100:41:121
1094299329,3cyclictest24972-21gltestperf22:01:271
1094299329,3cyclictest18531-21find23:16:341
1094299324,9cyclictest0-21swapper/101:52:441
1094299323,9cyclictest0-21swapper/101:18:501
1094299323,7cyclictest24375-21irqrtprio20:51:261
1094299322,6cyclictest5868-21apt-get00:51:251
1094299322,5cyclictest30816-21snmp_o5powerctl22:11:391
1094299322,5cyclictest2034-21apt-get00:11:251
10942993210,4cyclictest17757-21timedrift23:51:421
10937993227,3cyclictest9-21ksoftirqd/021:46:080
10937993226,3cyclictest9-21ksoftirqd/021:21:380
177391310,1ptp4l401ktimersoftd/323:31:423
177391310,1ptp4l401ktimersoftd/323:26:203
177391310,1ptp4l401ktimersoftd/323:01:573
177391310,1ptp4l401ktimersoftd/320:36:283
177391310,0ptp4l401ktimersoftd/320:55:073
1094299318,3cyclictest15251-21cat20:31:281
1094299316,3cyclictest50922chrt23:01:371
1094299312,5cyclictest22702-21snmp_o5powerctl20:46:361
1094299312,5cyclictest11207-21apt-get20:26:201
1094299312,10cyclictest12222-21gltestperf23:46:291
1094299311,6cyclictest25633-21snmp_o5powerctl01:11:411
10942993111,3cyclictest241ktimersoftd/100:18:091
1094299310,10cyclictest46950irq/101-ens3-Tx01:06:381
1094299310,10cyclictest46950irq/101-ens3-Tx01:06:381
10937993126,3cyclictest9-21ksoftirqd/021:36:390
10937993126,3cyclictest9-21ksoftirqd/021:36:390
10952993025,3cyclictest41-21ksoftirqd/301:41:463
1094799305,6cyclictest18482-21ssh23:52:352
10947993024,4cyclictest33-21ksoftirqd/222:46:242
1094299306,3cyclictest20766-21ls21:51:311
1094299306,3cyclictest1623-21nfs4_client01:21:341
1094299306,3cyclictest0-21swapper/123:41:521
1094299305,3cyclictest15780-21cut21:41:281
1094299304,4cyclictest21447-21wc01:46:261
1094299302,5cyclictest14788-21snmp_o5powerctl22:36:391
177391290,1ptp4l401ktimersoftd/321:54:503
177391290,1ptp4l401ktimersoftd/320:26:343
1094799295,14cyclictest765-21smartctl22:16:332
10947992924,3cyclictest33-21ksoftirqd/222:36:442
10947992924,3cyclictest33-21ksoftirqd/200:21:052
10947992923,3cyclictest33-21ksoftirqd/201:38:082
87042285,10sleep10-21swapper/120:21:091
177391280,1ptp4l401ktimersoftd/322:08:173
177391280,1ptp4l401ktimersoftd/322:01:343
10952992820,5cyclictest41-21ksoftirqd/320:46:223
1095299280,3cyclictest121rcu_preempt01:16:443
1094799286,6cyclictest797-21ssh22:56:442
1094799285,6cyclictest19337-21ssh23:17:212
1094799283,7cyclictest7311-21ssh22:28:592
1094799281,16cyclictest21133-21snmp_o5powerctl01:06:382
1094799281,16cyclictest21133-21snmp_o5powerctl01:06:382
1094299284,2cyclictest121rcu_preempt21:25:011
1094299281,6cyclictest29808-21snmp_o5powerctl21:01:311
177391270,1ptp4l401ktimersoftd/320:58:173
177391270,0ptp4l401ktimersoftd/300:12:553
10952992722,3cyclictest41-21ksoftirqd/320:31:203
1094799276,7cyclictest0-21swapper/221:51:242
1094799276,5cyclictest0-21swapper/201:16:322
1094799274,7cyclictest9845-21ssh22:31:302
1094799274,6cyclictest10615-21ssh01:31:462
1094799273,8cyclictest17640-21if_enp1s0.101:41:342
10947992722,3cyclictest33-21ksoftirqd/222:03:302
10947992720,4cyclictest33-21ksoftirqd/220:51:552
10952992621,3cyclictest41-21ksoftirqd/321:01:263
10952992619,4cyclictest41-21ksoftirqd/321:09:383
1094799265,6cyclictest28700-21ssh22:51:412
1094799264,19cyclictest12557-21snmp_o5powerctl20:26:412
10947992619,4cyclictest33-21ksoftirqd/220:49:142
1094799261,12cyclictest3907-21diskmemload23:44:502
177391250,1ptp4l401ktimersoftd/321:46:393
177391250,1ptp4l401ktimersoftd/321:36:393
177391250,1ptp4l401ktimersoftd/321:36:393
1094799256,6cyclictest8210-21ssh00:52:432
1094799254,6cyclictest8030-21ssh01:29:432
1094799254,6cyclictest26985-21ssh00:37:582
10947992519,4cyclictest33-21ksoftirqd/221:38:312
10947992519,4cyclictest33-21ksoftirqd/221:38:312
10947992519,3cyclictest33-21ksoftirqd/221:26:222
10947992512,6cyclictest21281-21apt-get01:46:252
10947992510,12cyclictest3501-21unixbench_singl22:21:422
1094799250,11cyclictest3907-21diskmemload23:08:012
177391240,1ptp4l401ktimersoftd/322:11:143
177391240,1ptp4l401ktimersoftd/321:16:203
177391240,1ptp4l401ktimersoftd/320:41:383
1575622417,3sleep233-21ksoftirqd/200:26:262
1094799243,18cyclictest17116-21sh20:36:282
1094799241,3cyclictest0-21swapper/221:21:072
10947992411,7cyclictest30840-21apt-get21:06:222
10952992318,3cyclictest41-21ksoftirqd/321:31:263
10952992318,3cyclictest41-21ksoftirqd/321:31:263
1094799234,5cyclictest0-21swapper/221:21:222
10947992312,6cyclictest15039-21apt-get21:41:212
10947992217,3cyclictest33-21ksoftirqd/221:46:252
10947992216,4cyclictest33-21ksoftirqd/222:00:112
1094799220,20cyclictest0-21swapper/222:06:262
10947992115,3cyclictest20630-21grep20:41:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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