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2026-05-19 - 11:06
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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 May 19, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
975321690,4sleep21396899cyclictest22:38:222
1068911060,4ptp4l401ktimersoftd/320:32:263
39122650,4sleep21396899cyclictest22:27:392
137022654,10sleep00-21swapper/020:35:110
121602620,1sleep20-21swapper/201:57:242
1397399611,22cyclictest14444-21sed01:27:183
71152600,2sleep20-21swapper/201:52:192
1397399606,18cyclictest323182chrt23:33:403
1397399600,23cyclictest27052-21taskset01:38:263
1397399596,19cyclictest4049-21sh00:42:483
1397399595,19cyclictest17123-21sh00:23:123
13968995919,4cyclictest33-21ksoftirqd/201:52:292
240822580,2sleep20-21swapper/222:02:332
184132580,2sleep118415-21proc_pri20:42:351
1397399581,21cyclictest484-21cstates22:22:273
1397399580,23cyclictest9131-21sed22:37:423
1397399576,20cyclictest28613-21irqrtprio22:12:323
1397399574,19cyclictest1598-21cat21:17:263
1397399571,21cyclictest21095-21mailstats01:32:423
1397399571,20cyclictest28961-21grep00:02:403
1397399570,22cyclictest12437-21cat21:37:413
1397399570,21cyclictest22680-21expr22:52:273
1397399570,21cyclictest22680-21expr22:52:273
151762560,2sleep00-21swapper/000:22:310
142892560,3sleep30-21swapper/300:21:463
1397399563,24cyclictest19438-21ssh02:03:193
1397399563,24cyclictest19438-21ssh02:03:193
1397399561,21cyclictest16170-21systemctl01:27:423
1397399561,20cyclictest12647-21df00:52:313
1397399560,22cyclictest22003-21sed21:57:413
1397399560,22cyclictest13364-21cut23:47:333
1397399560,21cyclictest26362-21mailstats00:32:403
1397399560,21cyclictest26362-21mailstats00:32:403
13956995624,5cyclictest9-21ksoftirqd/001:32:420
233622550,2sleep10-21swapper/100:30:191
1397399551,21cyclictest13279-21cat21:42:233
1397399551,20cyclictest20437-21smartctl23:22:323
1397399550,28cyclictest6466-21mailstats00:12:393
1397399550,22cyclictest18669-21ptp4l00:57:403
1397399550,19cyclictest8969-21switchtime00:47:463
13968995523,6cyclictest33-21ksoftirqd/200:02:172
1397399541,20cyclictest12505-21apt-get22:42:283
1397399541,18cyclictest18860-21snmp_o5powerctl23:52:413
13968995420,4cyclictest33-21ksoftirqd/221:17:352
1397399531,27cyclictest15715-21sed20:37:393
1397399531,18cyclictest7371-21/usr/sbin/munin23:42:373
1397399530,28cyclictest27466-21egrep22:57:263
1397399530,22cyclictest9138-21taskset01:52:463
1397399521,18cyclictest30840-21memory01:42:393
13968995223,6cyclictest33-21ksoftirqd/201:22:332
13968995221,6cyclictest33-21ksoftirqd/202:07:182
13968995221,6cyclictest33-21ksoftirqd/202:07:182
13956995246,4cyclictest9-21ksoftirqd/020:37:230
1397399510,28cyclictest7097-21diskmemload22:48:183
1397399510,25cyclictest7097-21diskmemload01:58:453
13968995126,4cyclictest33-21ksoftirqd/223:42:332
13956995144,4cyclictest9-21ksoftirqd/021:57:250
13956995115,5cyclictest9-21ksoftirqd/000:48:400
1397399501,19cyclictest21460-21snmp_o5powerctl00:27:433
1397399500,26cyclictest7097-21diskmemload01:07:203
13968995039,5cyclictest33-21ksoftirqd/222:12:262
13956995036,6cyclictest9-21ksoftirqd/023:52:270
13956995035,3cyclictest9-21ksoftirqd/001:07:470
136572504,34sleep20-21swapper/220:34:372
136132500,2sleep10-21swapper/100:52:391
1397399490,18cyclictest32689-21diskstats23:02:293
122992490,2sleep10-21swapper/100:18:271
1397399481,17cyclictest2981-21if_ens301:47:373
13968994839,4cyclictest33-21ksoftirqd/223:12:292
1395699486,8cyclictest9-21ksoftirqd/002:02:380
1395699486,8cyclictest9-21ksoftirqd/002:02:380
1395699485,3cyclictest9-21ksoftirqd/021:47:390
13956994834,3cyclictest9-21ksoftirqd/020:47:280
13956994823,4cyclictest9-21ksoftirqd/021:27:310
157942470,2sleep10-21swapper/123:17:321
13968994720,4cyclictest33-21ksoftirqd/200:07:362
13956994728,6cyclictest9-21ksoftirqd/000:02:170
13956994724,7cyclictest9-21ksoftirqd/021:37:340
13956994722,4cyclictest9-21ksoftirqd/001:57:410
13956994722,4cyclictest9-21ksoftirqd/000:32:350
13956994722,4cyclictest9-21ksoftirqd/000:32:350
1397399461,18cyclictest25203-21diskstats23:27:313
1397399461,17cyclictest4059-21diskstats21:22:283
13968994636,5cyclictest33-21ksoftirqd/220:57:252
13968994622,7cyclictest33-21ksoftirqd/200:47:322
13968994620,6cyclictest33-21ksoftirqd/223:37:292
13968994620,4cyclictest33-21ksoftirqd/221:52:132
13968994618,6cyclictest33-21ksoftirqd/200:57:362
13968994617,6cyclictest33-21ksoftirqd/201:12:332
13956994631,7cyclictest9-21ksoftirqd/021:07:320
13956994622,4cyclictest9-21ksoftirqd/020:52:400
13956994619,4cyclictest9-21ksoftirqd/001:42:340
13956994617,9cyclictest9-21ksoftirqd/023:02:310
1396899459,6cyclictest33-21ksoftirqd/201:12:182
13968994535,6cyclictest33-21ksoftirqd/221:42:252
13968994526,6cyclictest33-21ksoftirqd/222:51:362
13968994524,9cyclictest33-21ksoftirqd/222:42:462
13968994519,4cyclictest33-21ksoftirqd/201:42:362
13968994513,6cyclictest33-21ksoftirqd/200:32:322
13968994513,6cyclictest33-21ksoftirqd/200:32:322
1395699457,8cyclictest9-21ksoftirqd/001:12:500
13956994530,3cyclictest9-21ksoftirqd/021:32:350
13956994528,3cyclictest9-21ksoftirqd/023:18:040
13956994523,4cyclictest9-21ksoftirqd/022:22:250
13956994523,4cyclictest9-21ksoftirqd/020:42:330
13956994522,7cyclictest9-21ksoftirqd/022:56:340
13956994522,7cyclictest9-21ksoftirqd/022:56:340
13956994521,4cyclictest9-21ksoftirqd/022:45:100
13956994521,4cyclictest9-21ksoftirqd/000:30:120
13956994520,4cyclictest9-21ksoftirqd/000:41:150
1397399441,19cyclictest24928-21ssh01:04:033
1396899449,5cyclictest33-21ksoftirqd/201:36:542
1396899447,7cyclictest33-21ksoftirqd/223:22:382
13968994432,3cyclictest33-21ksoftirqd/221:57:292
13968994431,3cyclictest33-21ksoftirqd/223:02:432
13968994417,4cyclictest33-21ksoftirqd/201:22:182
13968994417,4cyclictest33-21ksoftirqd/200:17:342
13968994416,4cyclictest33-21ksoftirqd/200:12:352
13968994415,6cyclictest33-21ksoftirqd/200:57:182
1395699445,3cyclictest121rcu_preempt22:07:140
13956994430,6cyclictest9-21ksoftirqd/021:02:350
13956994430,6cyclictest9-21ksoftirqd/021:02:350
13956994420,4cyclictest9-21ksoftirqd/023:39:260
13956994420,4cyclictest9-21ksoftirqd/000:20:170
13956994419,5cyclictest9-21ksoftirqd/001:47:400
13956994419,4cyclictest9-21ksoftirqd/000:43:470
13956994416,4cyclictest9-21ksoftirqd/001:25:180
13956994410,4cyclictest9-21ksoftirqd/000:02:460
13968994328,3cyclictest33-21ksoftirqd/222:52:432
13968994328,3cyclictest33-21ksoftirqd/222:52:432
13968994323,9cyclictest33-21ksoftirqd/200:22:482
13968994323,7cyclictest33-21ksoftirqd/221:07:362
13968994320,9cyclictest33-21ksoftirqd/201:37:382
13968994320,7cyclictest33-21ksoftirqd/201:02:442
13968994315,4cyclictest33-21ksoftirqd/223:47:372
13956994338,3cyclictest9-21ksoftirqd/023:32:280
13956994330,6cyclictest9-21ksoftirqd/000:57:390
13956994325,7cyclictest9-21ksoftirqd/001:27:470
13956994321,7cyclictest9-21ksoftirqd/001:03:090
13956994320,4cyclictest9-21ksoftirqd/000:53:480
1396899427,7cyclictest33-21ksoftirqd/220:47:262
13968994231,5cyclictest33-21ksoftirqd/200:02:282
13968994217,7cyclictest33-21ksoftirqd/223:17:292
13968994216,4cyclictest33-21ksoftirqd/221:32:352
13968994214,6cyclictest33-21ksoftirqd/223:32:392
13968994214,5cyclictest33-21ksoftirqd/222:07:322
13968994212,7cyclictest33-21ksoftirqd/223:52:342
13968994212,7cyclictest33-21ksoftirqd/222:17:322
13968994211,7cyclictest33-21ksoftirqd/200:37:312
13968994210,7cyclictest33-21ksoftirqd/222:57:312
1396899420,6cyclictest7097-21diskmemload00:27:302
13956994220,7cyclictest9-21ksoftirqd/022:42:000
13956994220,7cyclictest9-21ksoftirqd/001:53:410
13956994219,4cyclictest9-21ksoftirqd/022:58:150
13956994217,4cyclictest9-21ksoftirqd/023:29:340
1397399411,24cyclictest16297-21mailstats23:17:363
1397399411,19cyclictest322-21df00:07:293
13968994131,5cyclictest33-21ksoftirqd/222:32:272
13968994128,3cyclictest33-21ksoftirqd/221:32:132
13968994121,7cyclictest33-21ksoftirqd/222:22:272
13968994115,7cyclictest33-21ksoftirqd/223:07:322
13968994115,4cyclictest33-21ksoftirqd/201:27:332
13968994113,6cyclictest33-21ksoftirqd/221:22:302
13968994113,5cyclictest33-21ksoftirqd/221:37:322
13968994110,7cyclictest33-21ksoftirqd/221:52:402
13968994110,7cyclictest33-21ksoftirqd/220:42:142
13956994130,3cyclictest9-21ksoftirqd/021:22:290
13956994129,3cyclictest9-21ksoftirqd/000:07:440
13956994128,3cyclictest9-21ksoftirqd/022:27:320
13956994119,4cyclictest9-21ksoftirqd/000:13:120
13956994118,4cyclictest9-21ksoftirqd/023:16:160
13956994117,4cyclictest9-21ksoftirqd/023:24:470
1397399400,20cyclictest23464-21missed_timers23:57:373
13968994015,4cyclictest33-21ksoftirqd/223:27:322
13968994014,7cyclictest33-21ksoftirqd/220:37:262
13968994014,4cyclictest33-21ksoftirqd/200:42:302
13968994011,8cyclictest33-21ksoftirqd/221:12:282
13956994029,3cyclictest9-21ksoftirqd/022:12:140
1395699402,6cyclictest9-21ksoftirqd/001:17:390
13956994021,7cyclictest9-21ksoftirqd/023:08:370
13956994016,8cyclictest9-21ksoftirqd/020:58:270
13956994016,4cyclictest9-21ksoftirqd/022:50:200
1397399390,19cyclictest5616-21if_ens322:32:323
1397399390,19cyclictest13869-21diskmemload23:16:093
1397399390,17cyclictest8643-21ssh23:10:443
1395699398,4cyclictest9-21ksoftirqd/021:12:310
13956993929,3cyclictest9-21ksoftirqd/023:48:060
13956993927,3cyclictest9-21ksoftirqd/023:46:470
13956993926,6cyclictest9-21ksoftirqd/001:38:540
13956993921,7cyclictest9-21ksoftirqd/021:22:130
13956993918,3cyclictest9-21ksoftirqd/021:42:350
106891390,1ptp4l401ktimersoftd/321:27:233
1396899381,4cyclictest27805-21strings21:02:392
1396899381,4cyclictest27805-21strings21:02:392
13968993813,7cyclictest33-21ksoftirqd/220:52:272
1395699385,3cyclictest9-21ksoftirqd/022:17:340
135102384,22sleep10-21swapper/120:32:421
106891380,1ptp4l401ktimersoftd/301:18:363
1397399371,20cyclictest7097-21diskmemload01:12:393
1397399370,23cyclictest26138-21if_enp1s0.122:07:313
1397399370,22cyclictest9712-21ps21:32:343
1397399370,16cyclictest6200-21ssh23:40:533
106891370,1ptp4l401ktimersoftd/300:37:493
13973993616,17cyclictest23780-21if_ens322:02:323
1397399360,22cyclictest19192-21sed21:52:313
13961993625,5cyclictest25-21ksoftirqd/122:37:251
1395699365,6cyclictest9-21ksoftirqd/022:12:270
106891360,0ptp4l401ktimersoftd/320:48:573
1395699352,3cyclictest9-21ksoftirqd/021:52:280
1397399343,23cyclictest29123-21apt-get21:07:253
1396199348,4cyclictest25-21ksoftirqd/122:07:141
13956993428,3cyclictest9-21ksoftirqd/022:32:310
1397399330,18cyclictest16601-21memory20:42:123
1397399330,18cyclictest0-21swapper/322:27:323
1396199338,22cyclictest26537-21cat22:07:331
13961993327,3cyclictest25-21ksoftirqd/123:27:151
13961993327,3cyclictest25-21ksoftirqd/122:47:141
13961993327,3cyclictest25-21ksoftirqd/122:32:131
13961993327,3cyclictest25-21ksoftirqd/102:02:311
13961993327,3cyclictest25-21ksoftirqd/102:02:311
13961993327,3cyclictest25-21ksoftirqd/101:17:181
1397399321,23cyclictest30331-21apt-get22:17:263
13961993227,3cyclictest25-21ksoftirqd/101:42:191
13961993226,3cyclictest25-21ksoftirqd/123:12:151
13961993226,3cyclictest25-21ksoftirqd/101:52:291
216872313,6sleep1121rcu_preempt20:52:121
13961993126,3cyclictest25-21ksoftirqd/100:12:461
13961993121,6cyclictest25-21ksoftirqd/101:57:311
1397399305,22cyclictest40092irq/92-enp1s0-T21:12:343
1397399301,26cyclictest0-21swapper/321:02:353
1397399301,26cyclictest0-21swapper/321:02:353
1397399300,26cyclictest23105-21/usr/sbin/munin20:52:323
1396199308,19cyclictest31535-21cat23:32:441
13961993025,3cyclictest25-21ksoftirqd/123:12:471
13961993025,3cyclictest25-21ksoftirqd/100:02:171
1396199300,3cyclictest121rcu_preempt01:42:361
13961992924,3cyclictest25-21ksoftirqd/123:42:331
13961992924,3cyclictest25-21ksoftirqd/122:52:141
13961992924,3cyclictest25-21ksoftirqd/120:37:291
13961992924,3cyclictest25-21ksoftirqd/100:02:181
13961992923,3cyclictest25-21ksoftirqd/123:52:291
13961992923,3cyclictest25-21ksoftirqd/122:37:141
13961992923,3cyclictest25-21ksoftirqd/121:57:291
1397399283,20cyclictest24371-21apt-get20:57:253
1397399280,24cyclictest16044-21/usr/sbin/munin21:47:263
13961992823,3cyclictest25-21ksoftirqd/123:42:161
13961992823,3cyclictest25-21ksoftirqd/121:52:131
13961992823,3cyclictest25-21ksoftirqd/121:42:251
13961992823,3cyclictest25-21ksoftirqd/121:27:301
13961992823,3cyclictest25-21ksoftirqd/100:42:371
13961992822,3cyclictest25-21ksoftirqd/122:17:271
13961992822,3cyclictest25-21ksoftirqd/101:32:381
13961992822,3cyclictest25-21ksoftirqd/101:22:181
13961992822,3cyclictest25-21ksoftirqd/100:07:261
13961992817,9cyclictest25-21ksoftirqd/101:47:491
1396199280,2cyclictest121rcu_preempt01:07:401
13961992722,3cyclictest25-21ksoftirqd/123:27:301
13961992722,3cyclictest25-21ksoftirqd/122:52:321
13961992722,3cyclictest25-21ksoftirqd/122:52:321
13961992722,3cyclictest25-21ksoftirqd/121:22:421
13961992722,3cyclictest25-21ksoftirqd/120:57:401
13961992722,3cyclictest25-21ksoftirqd/120:52:401
13961992722,3cyclictest25-21ksoftirqd/100:52:181
13961992722,3cyclictest25-21ksoftirqd/100:37:171
13961992722,3cyclictest25-21ksoftirqd/100:37:171
13961992722,3cyclictest25-21ksoftirqd/100:22:341
13961992721,4cyclictest25-21ksoftirqd/101:30:421
13961992721,3cyclictest25-21ksoftirqd/122:12:321
13961992721,3cyclictest25-21ksoftirqd/121:07:121
13961992721,3cyclictest25-21ksoftirqd/121:07:121
13961992720,4cyclictest18824-21snmp_o5powerctl00:57:431
13961992621,3cyclictest25-21ksoftirqd/121:57:131
13961992621,3cyclictest25-21ksoftirqd/121:32:411
13961992621,3cyclictest25-21ksoftirqd/121:07:271
13961992621,3cyclictest25-21ksoftirqd/101:02:301
13961992621,3cyclictest25-21ksoftirqd/100:42:171
13961992619,4cyclictest25-21ksoftirqd/121:15:471
13961992520,3cyclictest25-21ksoftirqd/123:48:551
13961992520,3cyclictest25-21ksoftirqd/123:02:361
13961992520,3cyclictest25-21ksoftirqd/122:22:331
13961992519,3cyclictest25-21ksoftirqd/121:39:281
13961992420,2cyclictest25-21ksoftirqd/101:22:281
13961992419,3cyclictest25-21ksoftirqd/122:57:371
13961992419,3cyclictest25-21ksoftirqd/121:17:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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