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2026-05-06 - 05:38
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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 the highest latencies:
System rackbslot6.osadl.org (updated Wed May 06, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2190521760,4sleep21749399cyclictest21:45:162
126302850,5sleep21749399cyclictest23:35:452
106891700,4ptp4l401ktimersoftd/320:27:513
106891630,1ptp4l401ktimersoftd/300:25:273
106891630,1ptp4l401ktimersoftd/300:25:273
17501996254,4cyclictest41-21ksoftirqd/322:50:143
171542624,46sleep00-21swapper/020:27:050
17501996150,5cyclictest41-21ksoftirqd/320:55:123
211752600,5sleep01748199cyclictest20:35:170
17501996050,4cyclictest41-21ksoftirqd/323:55:173
17501995848,5cyclictest41-21ksoftirqd/322:30:143
106891570,1ptp4l401ktimersoftd/323:51:263
43022540,2sleep10-21swapper/100:34:501
17501995442,5cyclictest41-21ksoftirqd/321:40:143
17501995342,5cyclictest41-21ksoftirqd/323:25:153
106891520,1ptp4l401ktimersoftd/301:01:583
197172510,2sleep30-21swapper/300:16:013
17501995140,4cyclictest41-21ksoftirqd/321:50:133
164822506,11sleep20-21swapper/220:25:302
170472494,33sleep10-21swapper/120:25:411
83112470,1sleep00-21swapper/000:38:180
184732470,2sleep20-21swapper/223:10:152
17501994741,3cyclictest41-21ksoftirqd/322:15:063
17501994741,3cyclictest41-21ksoftirqd/301:25:193
106891470,2ptp4l27010-21kworker/3:120:45:353
106891470,2ptp4l27010-21kworker/3:120:45:353
1750199468,3cyclictest121rcu_preempt00:00:313
106891460,1ptp4l401ktimersoftd/322:41:173
17501994539,3cyclictest90452chrt21:15:463
1750199452,3cyclictest121rcu_preempt23:00:073
106891450,2ptp4l27010-21kworker/3:123:16:333
17501994437,3cyclictest41-21ksoftirqd/301:05:103
106891440,1ptp4l401ktimersoftd/323:31:393
17501994320,7cyclictest41-21ksoftirqd/323:10:323
17501994318,4cyclictest41-21ksoftirqd/323:46:203
17501994318,4cyclictest41-21ksoftirqd/301:35:153
17501994219,4cyclictest41-21ksoftirqd/321:20:183
17501994218,4cyclictest41-21ksoftirqd/323:35:283
17501994217,4cyclictest41-21ksoftirqd/322:55:063
17501994217,4cyclictest41-21ksoftirqd/301:44:153
1750199417,12cyclictest41-21ksoftirqd/323:21:423
1750199413,3cyclictest41-21ksoftirqd/322:00:023
17501994125,13cyclictest41-21ksoftirqd/322:50:033
17501994116,4cyclictest41-21ksoftirqd/323:41:083
17501994116,4cyclictest41-21ksoftirqd/301:20:253
17501994116,4cyclictest41-21ksoftirqd/300:55:113
106891410,1ptp4l401ktimersoftd/321:28:143
1750199404,3cyclictest41-21ksoftirqd/301:11:383
17501994032,4cyclictest41-21ksoftirqd/300:30:163
17501994027,10cyclictest41-21ksoftirqd/300:40:253
1750199401,7cyclictest19847-21munin-node20:34:593
17501994016,4cyclictest41-21ksoftirqd/301:55:513
17501994016,4cyclictest41-21ksoftirqd/301:32:153
17501994015,4cyclictest41-21ksoftirqd/300:45:473
17501994015,4cyclictest41-21ksoftirqd/300:24:433
17501994015,4cyclictest41-21ksoftirqd/300:24:433
106891400,0ptp4l401ktimersoftd/300:36:433
17501993929,3cyclictest41-21ksoftirqd/301:15:273
17501993917,4cyclictest41-21ksoftirqd/300:10:213
17501993915,4cyclictest41-21ksoftirqd/301:45:493
106891390,1ptp4l401ktimersoftd/300:52:163
1750199383,4cyclictest121rcu_preempt22:20:063
17501993832,3cyclictest41-21ksoftirqd/300:10:043
17501993816,7cyclictest41-21ksoftirqd/322:35:323
17501993816,7cyclictest41-21ksoftirqd/322:35:323
17501993814,4cyclictest41-21ksoftirqd/323:05:243
17501993814,4cyclictest41-21ksoftirqd/321:05:293
17501993714,4cyclictest41-21ksoftirqd/322:30:023
1750199371,3cyclictest41-21ksoftirqd/321:10:293
17481993730,4cyclictest9-21ksoftirqd/023:45:160
106891370,1ptp4l401ktimersoftd/301:53:433
1750199361,3cyclictest41-21ksoftirqd/320:40:163
17488993625,5cyclictest25-21ksoftirqd/123:50:161
1750199358,10cyclictest41-21ksoftirqd/322:10:173
17501993529,3cyclictest41-21ksoftirqd/320:35:193
17501993524,3cyclictest41-21ksoftirqd/322:05:193
17501993512,4cyclictest41-21ksoftirqd/320:50:243
17501993428,3cyclictest41-21ksoftirqd/321:50:023
1750199341,6cyclictest41-21ksoftirqd/321:35:283
1750199340,6cyclictest30974-21idleruntime-cro22:05:013
1750199334,10cyclictest41-21ksoftirqd/321:00:143
17501993327,3cyclictest41-21ksoftirqd/321:30:193
17481993328,3cyclictest9-21ksoftirqd/000:40:160
17481993324,6cyclictest9-21ksoftirqd/001:40:070
1748899323,18cyclictest7790-21ssh00:05:161
17488993227,3cyclictest25-21ksoftirqd/121:40:011
17481993222,6cyclictest9-21ksoftirqd/021:35:120
161622310,3sleep00-21swapper/023:40:210
1749399304,3cyclictest121rcu_preempt01:25:152
17481993018,9cyclictest895-21cron22:10:010
17493992922,4cyclictest33-21ksoftirqd/222:25:022
17481992923,3cyclictest9-21ksoftirqd/022:20:020
1749399284,14cyclictest9348-21ssh01:45:192
17481992823,3cyclictest9-21ksoftirqd/001:40:380
17481992822,3cyclictest9-21ksoftirqd/023:00:030
17481992822,3cyclictest9-21ksoftirqd/001:50:070
17481992822,3cyclictest9-21ksoftirqd/001:20:060
17481992816,3cyclictest9-21ksoftirqd/001:55:210
1749399274,13cyclictest4878-21ssh00:35:172
1749399273,14cyclictest16183-21rm22:35:152
1749399273,14cyclictest16183-21rm22:35:152
17493992721,3cyclictest33-21ksoftirqd/223:54:082
17493992716,3cyclictest33-21ksoftirqd/223:25:092
17488992722,3cyclictest25-21ksoftirqd/123:35:041
17488992722,3cyclictest25-21ksoftirqd/100:03:381
17481992722,3cyclictest9-21ksoftirqd/000:05:240
17481992721,4cyclictest9-21ksoftirqd/020:40:160
17481992721,3cyclictest9-21ksoftirqd/023:15:220
17481992721,3cyclictest9-21ksoftirqd/001:30:360
17481992720,4cyclictest9-21ksoftirqd/023:05:160
253502260,3sleep010824-21diskmemload01:28:220
1749399263,11cyclictest16975-21ssh01:20:192
17493992620,3cyclictest33-21ksoftirqd/223:43:042
17493992619,4cyclictest33-21ksoftirqd/221:37:212
17493992619,4cyclictest33-21ksoftirqd/220:31:532
17488992621,3cyclictest25-21ksoftirqd/122:55:161
17488992619,4cyclictest25-21ksoftirqd/121:29:541
17481992622,2cyclictest9-21ksoftirqd/000:00:040
17481992621,3cyclictest9-21ksoftirqd/001:00:060
17481992621,3cyclictest9-21ksoftirqd/000:35:050
17481992621,3cyclictest9-21ksoftirqd/000:15:230
17481992620,4cyclictest9-21ksoftirqd/023:30:170
17481992620,3cyclictest9-21ksoftirqd/023:00:040
17481992620,3cyclictest9-21ksoftirqd/022:50:030
17481992620,3cyclictest9-21ksoftirqd/022:35:220
17481992620,3cyclictest9-21ksoftirqd/022:35:220
17481992620,3cyclictest9-21ksoftirqd/022:30:200
17481992620,3cyclictest9-21ksoftirqd/022:30:020
17481992620,3cyclictest9-21ksoftirqd/021:25:200
17481992620,3cyclictest9-21ksoftirqd/021:20:190
17481992620,3cyclictest9-21ksoftirqd/021:15:190
17481992620,3cyclictest9-21ksoftirqd/021:13:310
17481992620,3cyclictest9-21ksoftirqd/020:57:190
17481992620,3cyclictest9-21ksoftirqd/001:10:240
1748199261,3cyclictest121rcu_preempt00:10:350
1749399252,13cyclictest8612-21ssh23:00:152
17493992520,3cyclictest33-21ksoftirqd/221:05:002
17493992519,3cyclictest33-21ksoftirqd/222:10:392
17493992519,3cyclictest33-21ksoftirqd/220:57:142
17493992519,3cyclictest33-21ksoftirqd/220:54:262
17493992518,4cyclictest33-21ksoftirqd/222:29:402
17493992518,4cyclictest33-21ksoftirqd/221:34:282
17493992518,4cyclictest33-21ksoftirqd/221:26:052
1748899253,13cyclictest22556-21ssh00:20:171
1748899253,13cyclictest22556-21ssh00:20:171
17488992520,3cyclictest25-21ksoftirqd/123:35:161
17488992519,3cyclictest25-21ksoftirqd/120:38:391
17488992518,4cyclictest25-21ksoftirqd/123:11:511
17488992518,4cyclictest25-21ksoftirqd/100:14:301
17481992520,3cyclictest9-21ksoftirqd/023:35:180
17481992520,3cyclictest9-21ksoftirqd/021:45:190
17481992520,3cyclictest9-21ksoftirqd/021:05:230
17481992520,3cyclictest9-21ksoftirqd/020:50:170
17481992520,3cyclictest9-21ksoftirqd/001:05:100
17481992519,3cyclictest9-21ksoftirqd/023:55:040
17481992519,3cyclictest9-21ksoftirqd/001:50:250
17481992519,3cyclictest9-21ksoftirqd/000:20:240
17481992519,3cyclictest9-21ksoftirqd/000:20:240
17481992518,4cyclictest9-21ksoftirqd/021:56:460
17493992418,4cyclictest33-21ksoftirqd/221:59:182
17493992418,3cyclictest33-21ksoftirqd/222:18:162
17493992418,3cyclictest33-21ksoftirqd/221:51:202
17493992417,4cyclictest33-21ksoftirqd/220:35:432
17493992417,4cyclictest33-21ksoftirqd/200:18:372
17493992412,9cyclictest33-21ksoftirqd/200:59:242
1748899243,18cyclictest9390-21run-parts21:20:011
17488992419,3cyclictest25-21ksoftirqd/101:15:351
17488992419,3cyclictest25-21ksoftirqd/100:55:251
17488992418,3cyclictest25-21ksoftirqd/121:42:421
17488992418,3cyclictest25-21ksoftirqd/120:44:371
17488992417,4cyclictest5382-21grep22:15:311
17488992417,4cyclictest25-21ksoftirqd/121:02:321
17488992417,4cyclictest25-21ksoftirqd/100:26:471
17488992417,4cyclictest25-21ksoftirqd/100:26:471
17481992419,3cyclictest9-21ksoftirqd/023:25:190
17481992419,3cyclictest9-21ksoftirqd/022:50:180
17481992419,3cyclictest9-21ksoftirqd/021:50:200
17481992418,3cyclictest9-21ksoftirqd/000:54:280
17481992418,3cyclictest9-21ksoftirqd/000:00:170
17481992417,4cyclictest9-21ksoftirqd/022:12:120
17481992417,4cyclictest9-21ksoftirqd/022:04:250
17481992417,4cyclictest27586-21cron20:50:000
17481992417,4cyclictest27586-21cron20:50:000
17481992413,6cyclictest9-21ksoftirqd/020:30:120
17481992413,5cyclictest9-21ksoftirqd/021:30:130
142422240,2sleep10-21swapper/101:50:191
320592230,2sleep10-21swapper/101:35:201
1749399239,11cyclictest5134-21sh01:07:282
1749399233,12cyclictest28337-21ssh23:20:162
17493992318,3cyclictest33-21ksoftirqd/223:15:172
17493992317,3cyclictest33-21ksoftirqd/222:04:532
17493992316,4cyclictest33-21ksoftirqd/223:32:202
1749399230,4cyclictest16548-21munin-plugin-st01:20:062
17488992318,3cyclictest25-21ksoftirqd/122:45:181
17488992318,3cyclictest25-21ksoftirqd/120:52:391
17488992318,3cyclictest25-21ksoftirqd/100:00:041
17488992317,3cyclictest25-21ksoftirqd/122:26:301
17488992317,3cyclictest25-21ksoftirqd/120:56:281
17488992317,3cyclictest25-21ksoftirqd/120:45:581
17488992317,3cyclictest25-21ksoftirqd/120:45:581
17488992316,4cyclictest25-21ksoftirqd/120:30:561
17488992316,4cyclictest15189-21tail00:45:221
17488992312,9cyclictest0-21swapper/101:57:111
17488992311,9cyclictest7015-21/usr/sbin/munin01:10:321
17481992318,3cyclictest9-21ksoftirqd/023:25:040
17481992318,3cyclictest9-21ksoftirqd/001:20:270
17481992318,3cyclictest9-21ksoftirqd/000:25:210
17481992318,3cyclictest9-21ksoftirqd/000:25:210
17481992316,4cyclictest1232-21grep21:00:180
17493992217,3cyclictest33-21ksoftirqd/222:33:092
17493992215,4cyclictest33-21ksoftirqd/221:44:042
1749399221,3cyclictest30344-21ssh01:33:112
17493992212,6cyclictest626-21interrupts00:30:232
1749399221,18cyclictest15686-21snmp_o5powerctl01:50:312
1748899223,11cyclictest21127-21ssh22:40:141
17481992217,3cyclictest9-21ksoftirqd/001:00:230
17481992216,3cyclictest9-21ksoftirqd/022:40:500
17493992116,3cyclictest33-21ksoftirqd/222:52:452
17493992116,3cyclictest33-21ksoftirqd/200:24:072
17493992116,3cyclictest33-21ksoftirqd/200:24:072
17493992116,3cyclictest33-21ksoftirqd/200:07:392
17493992114,4cyclictest33-21ksoftirqd/221:24:292
1749399211,18cyclictest0-21swapper/222:57:072
1749399211,18cyclictest0-21swapper/200:40:142
1749399210,18cyclictest2790-21/usr/sbin/munin00:00:272
1748899212,16cyclictest24809-21tr21:50:201
1748899212,11cyclictest13524-21ssh23:05:141
17488992117,3cyclictest25-21ksoftirqd/101:24:241
17488992116,3cyclictest25-21ksoftirqd/121:57:201
17488992116,3cyclictest25-21ksoftirqd/100:40:061
17488992115,4cyclictest6813-21grep22:20:181
17488992115,3cyclictest25-21ksoftirqd/123:30:041
17488992115,3cyclictest25-21ksoftirqd/122:00:381
17488992114,4cyclictest30151-21awk23:20:341
17488992114,4cyclictest2556-21snmp_o5powerctl22:10:251
17488992114,4cyclictest23462-21cpuspeed_turbos23:15:171
17488992114,4cyclictest22858-21mailstats21:45:231
17488992113,3cyclictest20164-21sh22:39:101
17488992113,3cyclictest20164-21sh22:39:101
17493992015,3cyclictest33-21ksoftirqd/223:59:022
17493992015,3cyclictest33-21ksoftirqd/223:09:152
1749399201,4cyclictest7804-21hddtemp_smartct21:15:172
1749399201,4cyclictest7617-21hddtemp_smartct01:10:232
17493992014,3cyclictest33-21ksoftirqd/221:14:332
17493992014,3cyclictest33-21ksoftirqd/220:40:112
17493992014,3cyclictest2514-21/usr/sbin/munin21:05:202
17493992014,3cyclictest19968-21munin-node22:40:142
17493992013,4cyclictest31200-21/usr/sbin/munin22:05:222
17493992013,4cyclictest30936-21snmp_o5powerctl01:00:292
17493992013,4cyclictest22839-21sh23:46:192
17493992013,4cyclictest19580-21bc00:50:152
17493992013,4cyclictest16735-21sh00:45:522
1749399201,16cyclictest29833-21ssh00:26:262
1749399201,16cyclictest29833-21ssh00:26:262
17488992014,3cyclictest1055-21runrttasks00:51:441
17488992013,4cyclictest31642-21irqrtprio22:50:201
17488992013,4cyclictest22132-21timerandwakeup23:45:331
17488992013,4cyclictest11632-21fschecks_time22:30:171
1748899201,16cyclictest0-21swapper/100:16:191
1748199203,7cyclictest9-21ksoftirqd/022:20:030
17481992015,3cyclictest9-21ksoftirqd/021:40:140
17481992014,3cyclictest9-21ksoftirqd/000:45:180
17493991914,3cyclictest33-21ksoftirqd/201:57:012
17493991913,3cyclictest4712-21expr01:40:222
17493991913,3cyclictest33-21ksoftirqd/220:45:552
17493991913,3cyclictest33-21ksoftirqd/220:45:552
17493991913,3cyclictest31812-21/usr/sbin/munin01:35:262
17493991912,4cyclictest15146-21sh00:11:352
17493991911,5cyclictest47150irq/102-ens3-Tx22:45:152
17488991914,3cyclictest21814-21/usr/sbin/munin01:25:271
17488991914,3cyclictest1565-21apt-get01:05:101
17488991913,4cyclictest9987-21fschecks_count21:20:161
17488991913,3cyclictest2832-21expr21:05:141
17488991912,4cyclictest8534-21cat23:00:151
17488991912,4cyclictest32389-21phc2sys22:05:231
17488991912,4cyclictest31016-21cat01:00:321
17488991912,4cyclictest27247-21seq01:30:211
1748899191,15cyclictest5384-21irqstats01:40:271
1748899191,15cyclictest4986-21cpuspeed_turbos00:35:191
17488991911,5cyclictest47050irq/101-ens3-Tx23:40:161
17481991911,5cyclictest46950irq/100-ens3-Tx23:10:160
17488991811,4cyclictest14489-21cpu21:30:141
17488991811,4cyclictest10497-21open_files01:45:291
17488991711,3cyclictest5028-21cat21:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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