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2026-06-15 - 10:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackbslot7.osadl.org (updated Mon Jun 15, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
473822280,21sleep30-21swapper/318:54:233
473822280,21sleep30-21swapper/318:54:233
5241219714,160sleep04607-21/usr/sbin/munin18:54:460
5241219714,160sleep04607-21/usr/sbin/munin18:54:460
60859911850,61cyclictest297-21systemd-logind21:29:040
5287211713,68sleep15327-21/usr/sbin/munin18:54:471
5287211713,68sleep15327-21/usr/sbin/munin18:54:471
60859911235,9cyclictest0-21swapper/021:14:330
6085991113,28cyclictest11850-21timerandwakeup22:44:400
6085991112,22cyclictest8345-21apt-get20:44:150
6101991109,78cyclictest20255-21diskmemload23:54:472
60859911032,12cyclictest0-21swapper/020:54:410
6085991093,26cyclictest29375-21awk23:14:360
6085991064,45cyclictest5838-21ntpq00:24:320
60859910634,11cyclictest0-21swapper/022:44:030
61019910555,41cyclictest0-21swapper/223:04:132
61019910555,41cyclictest0-21swapper/223:04:132
6085991053,24cyclictest25485-21apt-get21:19:340
60859910530,7cyclictest0-21swapper/022:29:070
60859910442,55cyclictest14220-21sh22:49:250
6085991043,34cyclictest19688-21apt-config23:54:060
6085991034,36cyclictest22858-21ls23:04:200
6085991034,36cyclictest22858-21ls23:04:200
60859910338,8cyclictest0-21swapper/020:04:400
60859910336,8cyclictest0-21swapper/022:34:360
6085991033,25cyclictest12317-21taskset21:51:320
60859910241,50cyclictest0-21swapper/022:04:070
6085991023,36cyclictest352-21runrttasks21:06:180
6085991023,36cyclictest352-21runrttasks21:06:180
6085991022,40cyclictest4611-21ssh21:39:170
60859910136,8cyclictest0-21swapper/000:09:310
6085991013,32cyclictest7746-21grep19:04:060
6085991013,32cyclictest7746-21grep19:04:060
60859910037,10cyclictest0-21swapper/019:34:330
6085991003,36cyclictest3039-21sendmail_mailqu00:19:360
6085991003,33cyclictest7693-21cstates21:44:200
6085991003,27cyclictest22236-21latency_hist22:09:050
6085991002,32cyclictest31690-21proc_pri20:14:360
6085991002,32cyclictest31690-21proc_pri20:14:360
608599993,33cyclictest17020-21wc19:29:290
608599993,33cyclictest17020-21wc19:29:290
6085999931,13cyclictest0-21swapper/019:29:040
6085999931,13cyclictest0-21swapper/019:29:040
608599985,27cyclictest20044-21/usr/sbin/munin23:55:400
608599984,33cyclictest6167-21uptime23:29:410
608599984,33cyclictest6167-21uptime23:29:410
608599984,27cyclictest26316-21timerandwakeup22:14:390
608599983,36cyclictest2346-21tr22:29:290
608599983,36cyclictest1-21systemd20:44:040
608599983,34cyclictest25704-21/usr/sbin/munin23:09:310
608599983,32cyclictest10843-21ssh23:39:070
608599983,30cyclictest31526-21irqstats21:29:290
608599983,30cyclictest14075-21ssh23:44:210
6085999829,10cyclictest0-21swapper/022:54:210
608599982,34cyclictest22984-21/usr/sbin/munin23:59:320
608599982,28cyclictest16250-21latency_hist21:59:060
608599974,33cyclictest8538-21fschecks_count19:04:280
608599973,41cyclictest26389-21grep00:04:290
608599973,41cyclictest26389-21grep00:04:290
608599973,34cyclictest32283-21kernelversion00:14:300
608599973,34cyclictest13743-21idleruntime19:20:300
608599973,31cyclictest2206-21cstates23:24:200
608599973,28cyclictest22627-21latency_hist23:04:060
6085999726,13cyclictest0-21swapper/023:19:380
608599972,32cyclictest23633-21proc_pri19:49:360
608599972,32cyclictest23633-21proc_pri19:49:360
608599972,23cyclictest14246-21timerwakeupswit20:59:410
608599963,34cyclictest10374-21grep19:09:290
608599963,33cyclictest352-21runrttasks21:36:070
6085999630,12cyclictest0-21swapper/021:09:470
610199952,52cyclictest11596-21apt-get20:54:152
6085999533,55cyclictest0-21swapper/019:19:070
608599953,32cyclictest24788-21cstates19:54:220
608599953,32cyclictest1-21systemd20:24:040
608599953,32cyclictest1-21systemd20:24:040
608599952,34cyclictest9962-21/usr/sbin/munin20:49:290
608599952,34cyclictest9962-21/usr/sbin/munin20:49:290
608599943,35cyclictest11242-21fschecks_time23:39:250
608599943,35cyclictest11242-21fschecks_time23:39:250
608599943,32cyclictest23167-21processes22:09:370
608599943,32cyclictest23167-21processes22:09:370
608599943,32cyclictest21405-21/usr/sbin/munin19:44:250
608599943,29cyclictest5370-21tune2fs20:34:240
608599942,36cyclictest2088-21fschecks_count20:24:260
608599942,31cyclictest28606-21df_inode22:19:240
608599942,31cyclictest28606-21df_inode22:19:240
6101999368,17cyclictest2374-21systemd-journal23:26:562
6101999346,40cyclictest21994-21sh21:14:042
610199932,27cyclictest13236-21apt-config19:19:082
608599933,32cyclictest26375-21wc19:59:200
608599933,31cyclictest3501-21/usr/sbin/munin20:29:360
608599932,32cyclictest19881-21sort19:39:200
6101999246,39cyclictest0-21swapper/223:49:032
610199923,36cyclictest22767-21latency21:14:312
608599922,33cyclictest29784-21fschecks_time20:09:260
6101999145,40cyclictest12945-21diskmemload23:39:042
610199912,39cyclictest2014-21latency_hist00:19:062
609699903,42cyclictest31-21ksoftirqd/121:34:181
6101998960,19cyclictest27770-21latency_hist20:04:072
6096998950,14cyclictest181rcu_preempt23:14:401
6101998863,18cyclictest12945-21diskmemload21:44:082
6101998835,45cyclictest0-21swapper/220:29:212
6096998856,10cyclictest181rcu_preempt23:58:341
6101998731,30cyclictest21646-21cut19:44:262
6096998759,21cyclictest18148-21sh21:06:541
6096998759,21cyclictest18148-21sh21:06:541
610199863,30cyclictest352-21runrttasks20:48:422
610199862,74cyclictest8145-21ssh22:39:222
610199853,36cyclictest14709-21latency_hist19:24:072
610199853,28cyclictest16899-21taskset23:49:172
610199853,24cyclictest9962-21apt-get19:09:152
610199852,37cyclictest4563-21modprobe22:34:032
610199847,52cyclictest25485-21apt-get21:19:532
6101998459,19cyclictest31484-21kernelversion20:14:292
6101998459,19cyclictest31484-21kernelversion20:14:292
6101998445,32cyclictest31414-21cpu22:24:182
610199844,47cyclictest10963-21ssh22:44:162
610199844,30cyclictest352-21runrttasks21:24:332
610199843,34cyclictest18416-21fschecks_count19:34:262
6096998463,16cyclictest6073-21cyclictest20:39:391
6096998424,43cyclictest31-21ksoftirqd/121:16:111
610199833,28cyclictest16805-21fschecks_time21:59:262
610199833,25cyclictest2856-21grep20:24:412
6096998366,12cyclictest58-21kcompactd019:19:581
6096998348,11cyclictest181rcu_preempt19:31:431
6096998348,11cyclictest181rcu_preempt19:31:431
610199824,32cyclictest448-21uniq20:19:252
610199824,32cyclictest448-21uniq20:19:252
610199824,27cyclictest20018-21cut19:39:262
610199823,34cyclictest17508-21tail19:29:392
610199823,34cyclictest17508-21tail19:29:392
610199823,30cyclictest30095-21ps20:09:362
610199823,27cyclictest16587-21fschecks_time21:04:272
610199823,27cyclictest16587-21fschecks_time21:04:272
610199823,25cyclictest28649-21/usr/sbin/munin23:14:352
610199823,25cyclictest23586-21/usr/sbin/munin22:09:432
610199823,25cyclictest23586-21/usr/sbin/munin22:09:432
6101998232,43cyclictest0-21swapper/221:34:422
6096998261,14cyclictest23259-21kworker/u17:3-ext4-rsv-conversion23:14:031
6096998253,14cyclictest181rcu_preempt19:24:161
6096998253,14cyclictest181rcu_preempt19:24:161
6096998246,10cyclictest181rcu_preempt20:19:071
6096998246,10cyclictest181rcu_preempt20:19:071
609699823,38cyclictest7962-21sh00:29:041
6101998157,14cyclictest29004-21cpuspeed00:09:222
610199814,23cyclictest9308-21/usr/sbin/munin19:04:442
610199813,35cyclictest9742-21sshd21:47:462
610199813,34cyclictest6904-21wc18:59:362
610199813,34cyclictest6904-21wc18:59:362
610199813,29cyclictest352-21runrttasks22:57:362
610199813,27cyclictest27872-21sort20:04:162
610199812,36cyclictest5323-21fschecks_count23:29:262
610199812,36cyclictest5323-21fschecks_count23:29:262
610199812,28cyclictest2562-21tune2fs00:19:242
610199812,23cyclictest10181-21fschecks_count20:49:262
610199812,23cyclictest10181-21fschecks_count20:49:262
6101998114,24cyclictest31987-21timerandwakeup21:29:402
6096998163,11cyclictest6073-21cyclictest23:43:001
6096998163,11cyclictest6073-21cyclictest23:43:001
6096998158,9cyclictest181rcu_preempt20:27:211
610199805,32cyclictest28670-21fschecks_count22:19:272
610199805,32cyclictest28670-21fschecks_count22:19:272
6101998037,36cyclictest0-21swapper/222:04:252
6101998034,40cyclictest10679-21cstates21:49:202
610199803,34cyclictest31582-21/usr/sbin/munin23:19:192
610199803,28cyclictest352-21runrttasks19:58:292
610199803,26cyclictest5431-21cat00:24:212
610199803,25cyclictest26318-21timerandwakeup22:14:392
610199802,28cyclictest6962-21cut20:39:252
610199802,26cyclictest23714-21/usr/sbin/munin23:59:382
6096998054,10cyclictest19676-21snmpd23:29:101
6096998054,10cyclictest19676-21snmpd23:29:101
6096998033,13cyclictest181rcu_preempt23:24:061
610199793,27cyclictest25897-21/usr/sbin/munin23:09:212
610199793,24cyclictest26447-21/usr/sbin/munin00:04:302
610199793,24cyclictest26447-21/usr/sbin/munin00:04:302
6101997928,43cyclictest0-21swapper/222:49:132
610199792,37cyclictest7696-21grep22:39:062
6096997964,10cyclictest6073-21cyclictest00:19:241
6096997964,10cyclictest30092-21ssh22:21:201
6096997964,10cyclictest30092-21ssh22:21:201
6096997953,20cyclictest11293-21sh21:49:381
6096997951,9cyclictest181rcu_preempt19:59:381
6096997950,7cyclictest181rcu_preempt22:04:401
6096997940,18cyclictest181rcu_preempt21:30:311
609699793,47cyclictest2434-21memory22:29:301
6101997857,13cyclictest14315-21mailstats21:54:392
610199783,25cyclictest15476-21ntpq19:24:332
610199783,25cyclictest15476-21ntpq19:24:332
610199783,24cyclictest23546-21ntpq19:49:322
610199783,24cyclictest23546-21ntpq19:49:322
610199782,27cyclictest22089-21ssh23:03:052
6096997860,11cyclictest2328-21kworker/u17:0-nfsiod23:06:181
6096997860,11cyclictest2328-21kworker/u17:0-nfsiod23:06:181
6096997852,10cyclictest181rcu_preempt19:58:201
610199777,28cyclictest12945-21diskmemload20:59:182
610199774,33cyclictest5295-21cut20:34:232
6096997763,9cyclictest7700-21kworker/u17:3-rpciod23:34:561
6096997762,10cyclictest58-21kcompactd019:46:251
6096997760,10cyclictest5773-21timerandwakeup22:34:391
6096997753,8cyclictest181rcu_preempt00:14:051
6096997744,8cyclictest181rcu_preempt21:24:071
6096997731,19cyclictest31-21ksoftirqd/122:28:201
6101997612,27cyclictest11244-21cut23:39:252
6101997612,27cyclictest11244-21cut23:39:252
6096997657,13cyclictest31826-21/usr/sbin/munin00:14:371
6096997639,13cyclictest181rcu_preempt00:04:401
6096997639,13cyclictest181rcu_preempt00:04:401
468527615,31sleep20-21swapper/218:54:232
468527615,31sleep20-21swapper/218:54:232
6096997561,10cyclictest6073-21cyclictest23:28:491
6096997557,11cyclictest2374-21systemd-journal22:53:561
6096997540,8cyclictest181rcu_preempt22:40:281
6096997537,14cyclictest181rcu_preempt22:58:441
6096997536,11cyclictest181rcu_preempt20:35:511
6096997535,13cyclictest181rcu_preempt21:45:341
6096997532,11cyclictest181rcu_preempt23:49:061
609699752,20cyclictest3780-21uniq20:29:261
6096997448,11cyclictest181rcu_preempt22:48:321
6096997446,19cyclictest9657-21modprobe19:09:031
6096997425,12cyclictest181rcu_preempt19:09:291
6096997356,13cyclictest6073-21cyclictest23:04:051
6096997350,9cyclictest181rcu_preempt20:54:211
6096997344,15cyclictest181rcu_preempt22:14:071
6096997344,15cyclictest181rcu_preempt22:14:071
6096997338,12cyclictest181rcu_preempt21:09:121
6096997337,14cyclictest181rcu_preempt20:59:351
6096997330,13cyclictest181rcu_preempt00:04:051
6096997253,13cyclictest17485-21diskmemload23:49:341
6096997251,8cyclictest181rcu_preempt21:24:211
6096997249,10cyclictest181rcu_preempt19:02:171
6096997249,10cyclictest181rcu_preempt19:02:171
6096997246,10cyclictest181rcu_preempt20:44:221
609699714,36cyclictest11817-21fschecks_time19:14:231
6096997134,10cyclictest181rcu_preempt22:14:401
6096997048,9cyclictest181rcu_preempt21:39:381
6096997047,9cyclictest181rcu_preempt20:21:501
6096997047,9cyclictest181rcu_preempt20:21:501
6096997046,10cyclictest181rcu_preempt21:58:051
6096997041,19cyclictest20443-21awk19:39:371
610999693,35cyclictest10178-21chrt23:37:443
610999692,35cyclictest11467-21taskset22:44:303
6096996932,14cyclictest181rcu_preempt21:59:391
6096996911,22cyclictest23849-21timerandwakeup19:49:391
6096996911,22cyclictest23849-21timerandwakeup19:49:391
610999684,32cyclictest25822-21taskset00:04:073
610999683,33cyclictest31401-21chrt00:13:443
610999682,34cyclictest8349-21chrt20:44:173
6096996834,13cyclictest181rcu_preempt19:34:271
609699683,35cyclictest10180-21sort20:49:261
609699683,35cyclictest10180-21sort20:49:261
609699682,45cyclictest30027-21ntpq20:09:321
610999673,51cyclictest2919-21chrt21:35:133
610999673,33cyclictest11574-21chrt19:14:153
610999673,32cyclictest6206-21chrt23:29:463
610999673,32cyclictest6206-21chrt23:29:463
610999673,32cyclictest24923-21taskset23:07:453
610999673,32cyclictest24923-21taskset23:07:453
610999663,31cyclictest16801-21taskset23:49:073
610999663,28cyclictest2030-21taskset23:24:073
610999662,33cyclictest30049-21chrt20:09:333
610999662,32cyclictest20136-21taskset21:09:373
610999653,33cyclictest25649-21chrt19:54:433
610999653,30cyclictest1242-21chrt00:16:523
6096996530,17cyclictest181rcu_preempt20:04:331
610999643,32cyclictest722-21taskset20:19:303
610999643,32cyclictest722-21taskset20:19:303
610999643,31cyclictest15550-21chrt22:51:113
610999643,30cyclictest29806-21chrt23:14:463
610999643,30cyclictest29084-21chrt20:07:233
610999643,30cyclictest21987-21chrt23:02:463
610999643,30cyclictest15593-21taskset19:24:383
610999643,30cyclictest15593-21taskset19:24:383
610999643,30cyclictest12623-21chrt21:52:243
610999643,29cyclictest32758-21chrt22:25:283
610999642,32cyclictest23896-21chrt21:16:103
610999642,31cyclictest9493-21chrt19:06:583
610999642,31cyclictest7288-21chrt21:44:053
610999642,31cyclictest26117-21chrt23:09:273
610999642,31cyclictest23687-21taskset22:10:003
610999642,31cyclictest23687-21taskset22:10:003
610999642,31cyclictest21499-21taskset22:07:163
610999642,30cyclictest15038-21chrt21:55:493
610999634,28cyclictest7531-21chrt19:03:013
610999634,28cyclictest7531-21chrt19:03:013
610999633,31cyclictest17403-21taskset23:49:323
610999633,30cyclictest3962-21chrt22:32:223
610999633,30cyclictest19530-21chrt19:38:593
610999633,29cyclictest4883-21chrt20:34:043
610999633,29cyclictest27245-21chrt22:16:413
610999633,28cyclictest3756-21chrt00:20:373
610999633,28cyclictest11101-21taskset19:11:403
610999632,31cyclictest6214-21chrt20:35:543
610999632,31cyclictest472-21taskset21:31:443
610999632,31cyclictest27529-21chrt20:03:093
610999632,31cyclictest14154-21taskset19:20:413
610999632,30cyclictest29706-21chrt22:20:133
610999632,30cyclictest29706-21chrt22:20:133
610999632,30cyclictest16610-21chrt19:29:153
610999632,30cyclictest16610-21chrt19:29:153
610999632,30cyclictest14801-21chrt21:00:543
610999632,30cyclictest12799-21chrt20:57:293
610999632,29cyclictest23061-21chrt19:49:163
610999632,29cyclictest23061-21chrt19:49:163
610999632,28cyclictest25971-21chrt00:04:193
610999632,28cyclictest25971-21chrt00:04:193
610999632,23cyclictest18836-21chrt22:57:113
610999623,31cyclictest7961-21taskset00:29:043
610999623,29cyclictest8929-21chrt21:45:273
610999622,32cyclictest31581-21chrt23:19:123
610999622,31cyclictest11016-21chrt20:50:123
610999622,31cyclictest11016-21chrt20:50:123
610999622,30cyclictest29875-21chrt21:26:333
610999622,30cyclictest2945-21chrt20:25:383
610999622,29cyclictest18863-21chrt22:03:153
610999622,29cyclictest11585-21chrt23:39:353
610999622,29cyclictest11585-21chrt23:39:353
610999612,30cyclictest27012-21chrt21:21:433
610999612,29cyclictest9745-21chrt22:41:303
610999612,28cyclictest20944-21chrt19:41:313
610999612,27cyclictest7972-21chrt20:42:513
610999612,27cyclictest22546-21chrt19:46:293
610999612,22cyclictest7153-21chrt22:37:573
610999612,22cyclictest22044-21chrt23:57:143
610999602,32cyclictest18471-21taskset21:07:473
610999602,32cyclictest18471-21taskset21:07:473
610999593,25cyclictest32347-21chrt20:17:403
610999593,25cyclictest32347-21chrt20:17:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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