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2026-07-20 - 13:16
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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 Mon Jul 20, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
751021760,5sleep21023999cyclictest23:14:482
106891990,4ptp4l401ktimersoftd/321:07:213
311322840,2sleep10-21swapper/101:51:011
194352750,4sleep219438-21tr02:11:462
185242700,5sleep218525-21latency_hist23:26:282
185242700,5sleep218525-21latency_hist23:26:282
226432640,1sleep20-21swapper/222:41:442
165852610,2sleep10-21swapper/102:07:511
99412594,10sleep10-21swapper/121:08:571
7892570,2sleep20-21swapper/202:26:072
53842570,1sleep10-21swapper/100:17:141
1022899578,17cyclictest15383-21ssh23:21:590
1022899578,17cyclictest15383-21ssh23:21:590
312212550,2sleep30-21swapper/302:22:393
1022899545,17cyclictest3574-21diskmemload01:49:070
1022899544,18cyclictest3574-21diskmemload01:21:350
100382544,39sleep00-21swapper/021:10:130
1022899536,18cyclictest3574-21diskmemload02:03:090
1022899535,17cyclictest1055-21runrttasks01:35:560
1022899525,11cyclictest22985-21/usr/sbin/munin00:36:500
1022899513,17cyclictest3574-21diskmemload01:20:140
1022899504,16cyclictest3574-21diskmemload01:38:270
1022899494,16cyclictest23565-21snmp_o5powerctl01:41:580
1022899494,14cyclictest20181-21ssh01:06:310
1022899494,14cyclictest20181-21ssh01:06:310
1022899493,17cyclictest3574-21diskmemload02:07:120
143291480,2getstats0-21swapper/300:35:383
1022899475,10cyclictest6171-21ssh23:46:360
1022899473,9cyclictest11180-21apt-get02:36:430
1022899473,15cyclictest6598-21ssh01:57:500
1022899464,16cyclictest23432-21snmp_o5powerctl22:41:540
1022899463,16cyclictest18776-21apt-get23:26:390
1022899454,9cyclictest10356-21python23:16:530
1022899454,9cyclictest10356-21python23:16:530
1022899453,8cyclictest1445-21apt-get02:26:440
1022899453,18cyclictest3574-21diskmemload00:25:250
1022899453,15cyclictest6952-21users22:07:020
1022899453,14cyclictest3574-21diskmemload00:21:180
1022899444,8cyclictest21076-21apt-get21:31:390
1022899444,8cyclictest21076-21apt-get21:31:390
1022899444,16cyclictest2783-21python23:41:520
1022899443,9cyclictest5330-21ptp4l-jitter23:11:520
1022899443,18cyclictest3574-21diskmemload23:55:030
1022899442,18cyclictest3574-21diskmemload01:56:020
1022899441,17cyclictest3574-21diskmemload01:04:470
1022899441,17cyclictest3574-21diskmemload01:04:470
1022899437,14cyclictest24414-1kworker/u9:001:12:500
1022899437,14cyclictest24414-1kworker/u9:001:12:500
1022899434,9cyclictest17467-21python21:21:510
1022899434,9cyclictest17467-21python21:21:510
1022899433,8cyclictest6858-21snmp_o5powerctl00:51:560
1022899433,15cyclictest24450-21apt-get22:46:380
1022899432,17cyclictest3574-21diskmemload00:59:050
1024499424,8cyclictest20146-21ssh21:26:553
1022899424,16cyclictest27174-21snmp_o5powerctl21:41:540
1022899422,16cyclictest3574-21diskmemload00:29:420
106891410,1ptp4l401ktimersoftd/301:51:563
1022899414,14cyclictest32536-21ssh23:40:070
1022899413,9cyclictest20740-21snmp_o5powerctl02:11:590
993524014,13sleep29937-21sshd21:08:542
106891400,1ptp4l401ktimersoftd/301:12:273
106891400,1ptp4l401ktimersoftd/301:12:273
1022899403,8cyclictest18774-21ssh22:31:560
123562390,2sleep30-21swapper/302:04:203
106891390,1ptp4l401ktimersoftd/323:39:213
106891390,1ptp4l401ktimersoftd/323:28:013
106891390,1ptp4l401ktimersoftd/301:38:223
106891390,1ptp4l401ktimersoftd/301:34:443
106891390,1ptp4l401ktimersoftd/301:04:353
106891390,1ptp4l401ktimersoftd/301:04:353
106891390,1ptp4l401ktimersoftd/300:13:493
1022899393,8cyclictest876-21perl21:56:440
1022899393,16cyclictest3574-21diskmemload00:08:410
1022899392,8cyclictest3574-21diskmemload02:23:330
1022899392,8cyclictest3574-21diskmemload02:17:440
1022899391,8cyclictest3574-21diskmemload02:33:550
106891380,1ptp4l401ktimersoftd/323:42:273
106891380,1ptp4l401ktimersoftd/323:22:523
106891380,1ptp4l401ktimersoftd/323:22:523
106891380,1ptp4l401ktimersoftd/302:15:053
106891380,1ptp4l401ktimersoftd/302:10:303
106891380,1ptp4l401ktimersoftd/302:01:213
106891380,1ptp4l401ktimersoftd/301:19:313
106891380,1ptp4l401ktimersoftd/300:54:203
106891380,1ptp4l401ktimersoftd/300:21:393
106891380,1ptp4l401ktimersoftd/300:04:293
1022899382,8cyclictest3574-21diskmemload23:56:360
1022899382,8cyclictest3574-21diskmemload00:46:550
1022899382,7cyclictest3574-21diskmemload00:45:070
1022899381,8cyclictest3574-21diskmemload00:03:590
1022899380,8cyclictest3574-21diskmemload00:12:340
106891370,1ptp4l401ktimersoftd/323:53:543
106891370,1ptp4l401ktimersoftd/323:46:573
106891370,1ptp4l401ktimersoftd/323:12:303
106891370,1ptp4l401ktimersoftd/302:20:403
106891370,1ptp4l401ktimersoftd/301:47:113
106891370,1ptp4l401ktimersoftd/301:44:313
106891370,1ptp4l401ktimersoftd/301:08:473
106891370,1ptp4l401ktimersoftd/301:08:473
106891370,1ptp4l401ktimersoftd/300:44:533
106891370,1ptp4l401ktimersoftd/300:10:053
106891370,0ptp4l401ktimersoftd/323:33:183
106891370,0ptp4l401ktimersoftd/302:26:433
106891370,0ptp4l401ktimersoftd/301:30:103
106891370,0ptp4l401ktimersoftd/300:59:363
1022899371,7cyclictest3574-21diskmemload00:31:320
253592360,4sleep1241ktimersoftd/123:31:531
106891360,1ptp4l401ktimersoftd/323:20:213
106891360,1ptp4l401ktimersoftd/323:20:213
106891360,1ptp4l401ktimersoftd/302:40:003
106891360,1ptp4l401ktimersoftd/302:32:393
106891360,1ptp4l401ktimersoftd/300:46:343
106891360,1ptp4l401ktimersoftd/300:21:293
106891360,0ptp4l401ktimersoftd/322:31:103
106891350,1ptp4l401ktimersoftd/300:30:543
1022899333,11cyclictest32629-21munin-run21:56:260
1024499324,8cyclictest10206-21apt-get22:16:403
1022899324,14cyclictest28192-21apt-get21:46:360
106891310,1ptp4l401ktimersoftd/321:36:403
1022899315,13cyclictest3574-21diskmemload23:31:440
1022899312,9cyclictest23701-21diskstats21:36:420
106891290,0ptp4l401ktimersoftd/300:41:283
10234992922,4cyclictest25-21ksoftirqd/123:37:401
1023499292,20cyclictest0-21swapper/101:41:441
304102280,13sleep2321ktimersoftd/201:16:452
10244992816,6cyclictest10494-21apt-get21:11:373
10239992823,3cyclictest33-21ksoftirqd/223:41:292
10239992823,3cyclictest33-21ksoftirqd/200:41:422
10239992822,3cyclictest33-21ksoftirqd/201:56:502
10239992821,4cyclictest33-21ksoftirqd/223:47:242
1022899284,8cyclictest7478-21ssh01:26:450
1022899282,8cyclictest18194-21apt-get21:26:300
1022899281,8cyclictest12965-21perl22:21:420
106891270,1ptp4l401ktimersoftd/321:31:393
106891270,1ptp4l401ktimersoftd/321:31:393
106891270,1ptp4l401ktimersoftd/321:21:283
106891270,1ptp4l401ktimersoftd/321:21:283
10239992722,3cyclictest33-21ksoftirqd/201:29:062
10239992721,3cyclictest33-21ksoftirqd/222:30:142
10239992721,3cyclictest33-21ksoftirqd/222:21:272
10239992720,4cyclictest33-21ksoftirqd/221:57:482
1023999270,2cyclictest121rcu_preempt00:21:482
1023499275,13cyclictest18784-21ssh23:26:401
1024499268,15cyclictest3286-21ssh01:21:503
10244992620,3cyclictest41-21ksoftirqd/322:15:083
10244992619,4cyclictest41-21ksoftirqd/322:47:233
10239992620,3cyclictest33-21ksoftirqd/221:45:052
10239992619,4cyclictest33-21ksoftirqd/221:52:022
10239992619,4cyclictest33-21ksoftirqd/221:15:292
10234992620,3cyclictest25-21ksoftirqd/102:33:471
10234992619,4cyclictest25-21ksoftirqd/123:21:301
10234992619,4cyclictest25-21ksoftirqd/123:21:301
10234992619,4cyclictest25-21ksoftirqd/102:01:571
10228992616,7cyclictest1055-21runrttasks22:51:340
10228992610,11cyclictest0-21swapper/022:11:390
106891250,4ptp4l401ktimersoftd/322:24:003
106891250,1ptp4l401ktimersoftd/323:01:513
106891250,1ptp4l401ktimersoftd/321:16:393
1024499259,11cyclictest0-21swapper/322:51:403
10244992519,3cyclictest41-21ksoftirqd/321:41:273
10244992512,7cyclictest464-21apt-get21:56:403
1024499250,10cyclictest0-21swapper/323:58:333
1023999254,6cyclictest121rcu_preempt01:23:542
1023999252,13cyclictest30281-21ssh00:11:122
10239992520,3cyclictest33-21ksoftirqd/201:51:542
10239992519,3cyclictest33-21ksoftirqd/221:38:162
10239992519,3cyclictest33-21ksoftirqd/221:35:362
10239992519,3cyclictest33-21ksoftirqd/221:35:362
10239992519,3cyclictest33-21ksoftirqd/221:18:022
10239992518,4cyclictest33-21ksoftirqd/223:27:292
10239992518,4cyclictest33-21ksoftirqd/222:39:032
1023499255,18cyclictest12768-21gltestperf01:31:481
1023499254,12cyclictest11184-21ssh02:36:431
1023499253,19cyclictest15204-21head21:16:561
1023499253,19cyclictest107962sleep123:51:291
10234992519,4cyclictest25-21ksoftirqd/100:42:091
10234992518,4cyclictest21520-21sed21:31:441
10234992518,4cyclictest21520-21sed21:31:441
10228992510,11cyclictest0-21swapper/022:26:380
10228992510,10cyclictest0-21swapper/022:01:370
106891240,1ptp4l401ktimersoftd/323:06:463
106891240,1ptp4l401ktimersoftd/322:56:413
106891240,1ptp4l401ktimersoftd/322:36:563
106891240,1ptp4l401ktimersoftd/322:31:403
106891240,1ptp4l401ktimersoftd/322:06:443
106891240,1ptp4l401ktimersoftd/322:01:393
106891240,1ptp4l401ktimersoftd/321:46:463
10244992418,4cyclictest41-21ksoftirqd/322:42:133
10244992412,8cyclictest30829-21forks21:51:413
1023999242,19cyclictest17694-21gltestperf01:36:482
10239992419,3cyclictest33-21ksoftirqd/223:55:282
10239992419,3cyclictest33-21ksoftirqd/223:16:462
10239992419,3cyclictest33-21ksoftirqd/223:16:462
10239992419,3cyclictest33-21ksoftirqd/202:20:032
10239992419,3cyclictest33-21ksoftirqd/201:04:052
10239992419,3cyclictest33-21ksoftirqd/201:04:052
10239992419,3cyclictest33-21ksoftirqd/200:58:142
10239992419,3cyclictest33-21ksoftirqd/200:36:302
10239992419,3cyclictest33-21ksoftirqd/200:16:302
10239992418,3cyclictest33-21ksoftirqd/222:49:142
10239992417,4cyclictest33-21ksoftirqd/222:24:182
10239992417,4cyclictest33-21ksoftirqd/221:28:372
10239992417,4cyclictest33-21ksoftirqd/201:33:522
1023999240,3cyclictest121rcu_preempt00:49:122
10234992419,3cyclictest25-21ksoftirqd/122:11:151
10234992418,4cyclictest25-21ksoftirqd/123:05:401
10234992418,4cyclictest25-21ksoftirqd/121:12:021
10234992418,3cyclictest25-21ksoftirqd/122:53:181
10234992418,3cyclictest25-21ksoftirqd/122:32:061
10234992417,4cyclictest25-21ksoftirqd/123:08:251
1023499241,20cyclictest17671-21ssh01:02:591
1023499241,20cyclictest17671-21ssh01:02:591
1022899249,10cyclictest0-21swapper/023:06:400
10228992419,3cyclictest9-21ksoftirqd/022:59:240
10228992414,7cyclictest19861-21ls22:36:410
10228992413,8cyclictest11857-21grep22:16:570
10239992318,3cyclictest33-21ksoftirqd/201:51:322
10239992317,3cyclictest33-21ksoftirqd/221:48:262
10239992316,4cyclictest33-21ksoftirqd/223:08:462
10239992316,4cyclictest33-21ksoftirqd/222:32:052
1023499232,18cyclictest26093-21sed22:46:551
10234992318,3cyclictest25-21ksoftirqd/100:46:441
10234992317,3cyclictest25730-21grep01:11:471
10234992317,3cyclictest25730-21grep01:11:471
10234992317,3cyclictest25-21ksoftirqd/122:29:151
10234992317,3cyclictest25-21ksoftirqd/122:13:361
10234992317,3cyclictest25-21ksoftirqd/121:47:101
10234992317,3cyclictest25-21ksoftirqd/121:22:081
10234992317,3cyclictest25-21ksoftirqd/121:22:081
10234992317,3cyclictest25-21ksoftirqd/100:26:581
10234992316,4cyclictest25-21ksoftirqd/122:17:461
10234992316,4cyclictest25-21ksoftirqd/122:04:541
10234992316,4cyclictest25-21ksoftirqd/121:43:501
1023499231,19cyclictest28189-21ssh00:07:381
1023499231,19cyclictest26312-21ssh02:17:371
1023499231,19cyclictest23069-21ssh01:08:271
1023499231,19cyclictest23069-21ssh01:08:271
1023499231,19cyclictest20713-21snmp_o5powerctl02:11:571
10239992217,3cyclictest33-21ksoftirqd/223:41:562
10239992217,3cyclictest33-21ksoftirqd/201:12:002
10239992217,3cyclictest33-21ksoftirqd/201:12:002
10239992216,3cyclictest33-21ksoftirqd/222:57:282
10239992216,3cyclictest33-21ksoftirqd/222:08:022
10239992215,4cyclictest33-21ksoftirqd/222:15:352
10239992215,4cyclictest15054-21unixbench_singl00:26:592
10239992210,7cyclictest0-21swapper/202:31:442
1023499225,15cyclictest3866-21kworker/1:123:53:241
10234992216,3cyclictest25-21ksoftirqd/122:43:031
10234992216,3cyclictest25-21ksoftirqd/100:01:041
10234992216,3cyclictest0-21swapper/101:25:361
10234992215,4cyclictest13058-21cut22:21:431
1023499221,3cyclictest6655-21ssh01:57:561
1023499221,3cyclictest464-21rm01:18:401
1023499221,2cyclictest121rcu_preempt00:59:571
1023499221,19cyclictest4767-21ssh02:29:331
1023499221,18cyclictest6886-21ssh23:13:451
1023499221,18cyclictest2905-21ssh00:16:221
1023499221,18cyclictest19647-21snmp_o5powerctl00:31:581
10228992211,7cyclictest31648-21/usr/sbin/munin23:01:440
222212210,3sleep222225-21phc2sys00:01:502
1023999219,9cyclictest6201-21cut00:51:482
10239992115,3cyclictest33-21ksoftirqd/222:01:292
10239992114,4cyclictest1055-21runrttasks02:36:362
10234992117,2cyclictest0-21swapper/121:56:591
10234992116,3cyclictest31045-21smartctl21:51:431
10234992116,3cyclictest25-21ksoftirqd/122:37:201
10234992115,3cyclictest3106-21grep23:41:581
10234992115,3cyclictest27656-21latency_hist00:41:301
10234992115,3cyclictest25-21ksoftirqd/121:40:081
10234992115,3cyclictest25-21ksoftirqd/121:30:021
1023499211,17cyclictest3613-21ssh01:56:041
1023499211,17cyclictest24776-21chrt00:05:101
1023499211,17cyclictest0-21swapper/101:40:401
1023499210,4cyclictest12188-21ssh23:19:211
1023499210,4cyclictest12188-21ssh23:19:211
1023499210,3cyclictest9462-21strings00:21:501
1023499210,18cyclictest8761-21ssh00:54:351
1022899219,9cyclictest12727-21munin-node21:16:280
1022899219,8cyclictest11834-21snmp_o5powerctl21:11:510
1023999206,11cyclictest1594-21grep02:26:452
10239992014,3cyclictest33-21ksoftirqd/222:53:282
10239992014,3cyclictest25873-21sh00:38:372
10239992013,4cyclictest3545-21cpuspeed_turbos00:16:442
10239992013,4cyclictest33-21ksoftirqd/223:06:172
10239992013,4cyclictest23927-21sh23:31:412
10239992013,4cyclictest22728-21sh01:07:522
10239992013,4cyclictest22728-21sh01:07:522
10239992013,4cyclictest22375-21sh01:41:462
10239992013,4cyclictest15601-21apt-get21:21:302
10239992013,4cyclictest15601-21apt-get21:21:302
10239992013,4cyclictest12522-21sh02:04:372
1023999201,16cyclictest17572-21snmp_o5powerctl23:56:562
10234992016,2cyclictest0-21swapper/122:57:561
10234992014,3cyclictest7049-21latency_hist01:26:321
10239991913,3cyclictest33-21ksoftirqd/202:06:352
10234991912,4cyclictest29042-21sh02:21:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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