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2026-07-13 - 01:46
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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 all highest latencies:
System rackbslot7.osadl.org (updated Sun Jul 12, 2026 12:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12533219513,82sleep112614-21tune2fs06:52:391
12533219513,82sleep112614-21tune2fs06:52:391
138379910548,15cyclictest0-21swapper/107:12:111
1345321036,16sleep20-21swapper/206:54:192
1345321036,16sleep20-21swapper/206:54:192
13839999853,38cyclictest277-21dbus-daemon07:57:122
281192970,9sleep3451rcuc/310:54:443
281192970,9sleep3451rcuc/310:54:443
13839999743,29cyclictest13824-21cyclictest12:05:542
13839999743,29cyclictest13824-21cyclictest12:05:542
1383999962,28cyclictest25485-21taskset07:29:222
1383999962,28cyclictest25485-21taskset07:29:222
1383799964,71cyclictest28297-21apt-get10:02:251
1383799964,71cyclictest28297-21apt-get10:02:251
13839999540,41cyclictest0-21swapper/212:17:312
13837999462,10cyclictest181rcu_preempt07:57:231
13839999334,32cyclictest0-21swapper/210:37:272
13839999334,32cyclictest0-21swapper/210:37:272
1383799937,73cyclictest32676-21apt-get07:52:291
13839999250,32cyclictest31028-21cut07:47:322
1383999918,70cyclictest25115-21ssh09:57:272
1383999912,25cyclictest7473-21sh11:14:152
1383999912,25cyclictest7473-21sh11:14:152
13837999062,11cyclictest181rcu_preempt08:42:231
13837999062,11cyclictest181rcu_preempt08:42:231
13837999059,22cyclictest21918-21sh11:37:451
13837999010,61cyclictest2180-21sh10:12:351
1383999893,73cyclictest0-21swapper/207:37:242
1383999893,73cyclictest0-21swapper/207:37:242
1383999893,37cyclictest30291-21apt-get09:12:222
1383399893,62cyclictest16282-21apt-get07:02:280
13839998838,45cyclictest0-21swapper/210:03:112
13839998838,45cyclictest0-21swapper/210:03:112
1383999883,75cyclictest0-21swapper/210:52:212
1383999883,75cyclictest0-21swapper/210:52:212
129482887,57sleep012995-21systemctl06:52:540
129482887,57sleep012995-21systemctl06:52:540
13837998768,13cyclictest20964-21diskmemload09:56:291
13839998639,39cyclictest0-21swapper/211:02:262
13839998635,42cyclictest0-21swapper/210:17:142
13833998658,20cyclictest20964-21diskmemload10:46:450
13833998658,20cyclictest20964-21diskmemload10:46:450
1383999853,7cyclictest0-21swapper/211:47:262
13833998558,18cyclictest9851-21latency_hist08:22:140
13833998524,40cyclictest0-21swapper/009:11:230
13833998524,40cyclictest0-21swapper/009:11:230
1383999844,76cyclictest0-21swapper/210:47:232
1383999843,71cyclictest827-21apt-get09:17:222
1383999843,71cyclictest0-21swapper/211:57:212
1383999843,69cyclictest16357-21apt-get08:42:232
1383999843,69cyclictest16357-21apt-get08:42:232
1383999842,6cyclictest0-21swapper/206:57:262
1383999842,39cyclictest5236-21/usr/sbin/munin08:07:292
1383999842,39cyclictest5236-21/usr/sbin/munin08:07:292
13837998464,14cyclictest352-21runrttasks10:42:491
13837998464,14cyclictest352-21runrttasks10:42:491
13837998442,31cyclictest24999-21grep07:27:441
13837998442,31cyclictest24999-21grep07:27:441
13833998462,16cyclictest31229-21latency_hist10:07:140
13833998462,16cyclictest31229-21latency_hist10:07:140
13833998428,38cyclictest0-21swapper/010:32:110
1383999834,71cyclictest0-21swapper/210:22:262
1383999833,69cyclictest5110-21apt-get10:17:242
1383999833,69cyclictest5110-21apt-get10:17:242
13833998353,21cyclictest16018-21ssh11:28:170
13833998353,21cyclictest16018-21ssh11:28:170
13839998241,34cyclictest0-21swapper/209:42:452
13839998241,34cyclictest0-21swapper/209:42:452
1383999823,71cyclictest0-21swapper/207:57:232
1383999823,68cyclictest0-21swapper/208:32:252
1383999823,68cyclictest0-21swapper/208:32:252
1383999823,68cyclictest0-21swapper/207:22:252
1383999822,35cyclictest10038-21runrttasks12:12:352
1383999822,34cyclictest18466-21date12:27:132
13837998261,14cyclictest30717-21ssh11:52:401
13833998262,14cyclictest2374-21systemd-journal11:52:370
13833998260,15cyclictest352-21runrttasks07:57:490
1383399823,29cyclictest29285-21/usr/sbin/munin10:57:430
1383999815,66cyclictest0-21swapper/208:27:222
1383999815,66cyclictest0-21swapper/208:27:222
13839998140,31cyclictest0-21swapper/211:02:142
1383999813,69cyclictest0-21swapper/209:47:242
1383999813,64cyclictest0-21swapper/208:17:242
13837998166,10cyclictest13824-21cyclictest11:28:131
13837998166,10cyclictest13824-21cyclictest11:28:131
13833998160,15cyclictest15-21ksoftirqd/011:12:220
13833998160,15cyclictest15-21ksoftirqd/011:12:220
13833998152,20cyclictest15925-21ssh12:22:340
13839998039,34cyclictest0-21swapper/210:42:482
13839998039,34cyclictest0-21swapper/210:42:482
1383999803,37cyclictest3660-21/usr/sbin/munin08:02:322
1383999803,37cyclictest3660-21/usr/sbin/munin08:02:322
1383999802,34cyclictest9035-21ssh11:17:172
1383999802,32cyclictest28678-21rm09:08:352
1383999802,32cyclictest28678-21rm09:08:352
13837998062,8cyclictest181rcu_preempt06:57:261
13837998052,17cyclictest8783-21latency_hist11:17:131
13837998052,17cyclictest8783-21latency_hist11:17:131
13833998051,19cyclictest32406-21apt-key07:52:140
1383999794,64cyclictest0-21swapper/207:42:262
1383999793,33cyclictest11451-21ssh10:27:402
1383999792,62cyclictest9832-21apt-get09:32:212
1383999792,62cyclictest9832-21apt-get09:32:212
1383999792,35cyclictest13143-21grep09:37:332
1383999792,33cyclictest8163-21latency_hist08:17:132
1383999792,33cyclictest8163-21latency_hist08:17:132
1383999792,32cyclictest10241-21/usr/sbin/munin08:22:352
1383999792,32cyclictest10241-21/usr/sbin/munin08:22:352
1383999792,31cyclictest3906-21grep09:22:282
1383999792,31cyclictest20961-21latency_hist07:17:132
1383999792,29cyclictest19917-21rm11:34:272
13837997955,17cyclictest19101-21fschecks_count09:47:341
13837997932,9cyclictest181rcu_preempt07:17:111
13833997960,13cyclictest15068-21latency_hist11:27:140
13833997960,13cyclictest15068-21latency_hist11:27:140
13833997959,14cyclictest20964-21diskmemload10:52:280
13833997959,14cyclictest20964-21diskmemload10:52:280
13839997854,16cyclictest2374-21systemd-journal09:01:392
13839997854,16cyclictest2374-21systemd-journal09:01:392
1383999784,69cyclictest0-21swapper/210:32:232
1383999783,62cyclictest21206-21apt-get11:37:222
1383999783,50cyclictest6864-21ssh12:07:372
1383999782,34cyclictest25959-21rm09:04:242
1383999782,33cyclictest17944-21grep07:07:302
1383999782,32cyclictest32674-21rm11:56:552
1383999782,31cyclictest25735-21ssh11:44:072
1383999782,31cyclictest15701-21fschecks_count11:28:082
1383999782,31cyclictest15701-21fschecks_count11:28:082
13837997859,12cyclictest5531-21sh11:12:101
13837997856,13cyclictest181rcu_preempt08:07:261
13837997856,13cyclictest181rcu_preempt08:07:261
13837997855,16cyclictest32409-21latency_hist07:52:141
13837997848,8cyclictest181rcu_preempt09:57:211
1383399784,40cyclictest21040-21latency_hist08:57:130
1383999773,31cyclictest21229-21cstates07:17:282
1383999772,7cyclictest0-21swapper/209:27:262
1383999772,29cyclictest4094-21sh11:08:092
1383999772,27cyclictest18724-21switchtime08:47:462
1383399777,34cyclictest1553-21apt-get10:12:190
13833997754,17cyclictest22784-21timerandwakeup09:52:470
13833997718,26cyclictest16193-21latency_hist08:42:120
13833997718,26cyclictest16193-21latency_hist08:42:120
1383999763,65cyclictest0-21swapper/210:07:282
1383999763,29cyclictest19783-21fschecks_count08:52:312
1383999762,6cyclictest0-21swapper/207:02:512
1383999762,34cyclictest352-21runrttasks09:54:532
1383999762,34cyclictest13131-21ssh11:22:482
1383999762,34cyclictest13131-21ssh11:22:482
1383999762,32cyclictest14806-21grep08:37:282
1383999762,32cyclictest14806-21grep08:37:282
1383999762,28cyclictest26656-21grep07:32:432
1383999762,28cyclictest26656-21grep07:32:432
13833997658,13cyclictest13824-21cyclictest08:27:100
13833997658,13cyclictest13824-21cyclictest08:27:100
13833997655,14cyclictest11592-21ssh11:21:430
13833997649,21cyclictest19097-21cut09:47:330
13833997617,40cyclictest0-21swapper/009:06:050
13833997611,29cyclictest0-21swapper/011:07:440
13837997555,14cyclictest1207-21if_eth009:17:351
13837997553,15cyclictest5656-21ssh10:17:421
13837997553,15cyclictest5656-21ssh10:17:421
13837997551,18cyclictest21120-21/usr/sbin/munin07:17:331
13837997547,9cyclictest181rcu_preempt09:42:491
13837997547,9cyclictest181rcu_preempt09:42:491
1383799752,43cyclictest9410-21latency_hist12:12:131
1383399755,51cyclictest9319-21idleruntime-cro12:12:100
13833997554,15cyclictest11085-21ntpd11:40:100
13833997552,17cyclictest16583-21fschecks_time08:42:330
13833997552,17cyclictest16583-21fschecks_time08:42:330
13833997546,14cyclictest14506-21ssh10:32:290
1383399753,38cyclictest19741-21fschecks_count07:12:310
13833997519,47cyclictest32179-21apt-get07:52:260
13833997514,28cyclictest0-21swapper/011:34:320
13837997437,9cyclictest181rcu_preempt09:12:221
13837997415,48cyclictest5581-21ssh12:05:181
13837997415,48cyclictest5581-21ssh12:05:181
13833997452,16cyclictest8601-21sh10:22:390
13833997447,22cyclictest0-21swapper/007:27:110
1383399743,58cyclictest13080-21fschecks_count09:37:320
13833997425,35cyclictest3645-21fschecks_count08:02:320
13833997425,35cyclictest3645-21fschecks_count08:02:320
13837997356,11cyclictest352-21runrttasks09:22:471
13837997352,16cyclictest18014-21kworker/u19:1+events_unbound08:22:101
13837997350,15cyclictest1-21systemd10:35:401
1383799733,51cyclictest9145-21runrttasks11:17:321
1383799732,59cyclictest3095-21kworker/u18:0+ext4-rsv-conversion10:27:291
13833997352,14cyclictest5005-21ssh09:23:020
13833997321,34cyclictest0-21swapper/011:57:330
13837997234,9cyclictest21874-21kworker/u18:3+rpciod10:07:231
1383799722,38cyclictest816-21timerwakeupswit11:02:481
13833997255,12cyclictest13824-21cyclictest10:17:520
13833997255,12cyclictest13824-21cyclictest10:17:520
13833997250,15cyclictest18545-21sendmail-msp09:47:110
13833997250,15cyclictest18545-21sendmail-msp09:47:110
1383399723,43cyclictest24532-21apt-get09:57:250
13833997220,23cyclictest0-21swapper/012:17:350
13833997216,16cyclictest19310-21latency_hist07:12:130
13837997150,13cyclictest0-21swapper/111:47:101
1383799712,37cyclictest27740-21df_inode07:37:301
1383799712,37cyclictest27740-21df_inode07:37:301
13833997146,18cyclictest0-21swapper/008:37:100
13833997146,18cyclictest0-21swapper/008:37:100
1383399714,38cyclictest23711-21if_eth010:47:350
1384499703,55cyclictest2115-21taskset10:12:233
1384499703,54cyclictest16320-21chrt07:02:473
1383799706,25cyclictest0-21swapper/108:13:131
1383799706,25cyclictest0-21swapper/108:13:131
13837997052,12cyclictest20964-21diskmemload10:58:401
13837997038,11cyclictest181rcu_preempt09:10:551
13837997038,11cyclictest181rcu_preempt09:10:551
1383799703,58cyclictest15354-21apt-get07:02:251
13833997044,19cyclictest15811-21latency_hist07:02:150
1383399703,57cyclictest7334-21latency09:27:370
13833997020,33cyclictest0-21swapper/012:07:130
13833997020,33cyclictest0-21swapper/012:07:130
1384499692,54cyclictest15351-21chrt07:02:103
13837996951,11cyclictest3267-21cron12:02:101
13837996950,14cyclictest13824-21cyclictest10:48:361
13837996941,12cyclictest15160-21kworker/u17:3-rpciod10:23:401
13837996936,12cyclictest7426-21ssh09:27:401
13833996939,22cyclictest19390-21latency_hist08:52:120
1383399693,31cyclictest352-21runrttasks10:08:090
13837996846,15cyclictest18246-21latency_hist12:27:141
13837996839,20cyclictest13421-21grep09:37:391
13837996837,15cyclictest13824-21cyclictest11:23:411
13837996837,15cyclictest13824-21cyclictest11:23:411
1383799683,46cyclictest29531-21ssh11:51:241
13837996817,14cyclictest181rcu_preempt10:37:331
13837996817,14cyclictest181rcu_preempt10:37:331
13837996813,26cyclictest9638-21apt-get12:12:221
1383399684,44cyclictest6628-21latency_hist08:12:130
1383399684,44cyclictest6628-21latency_hist08:12:130
1383399683,46cyclictest24227-21cpu11:42:260
1383399683,32cyclictest30967-21ps09:12:430
13833996827,31cyclictest0-21swapper/007:32:130
13833996827,31cyclictest0-21swapper/007:32:130
13833996821,34cyclictest6777-21cstates08:12:280
13833996821,34cyclictest6777-21cstates08:12:280
13833996812,29cyclictest0-21swapper/011:02:280
1384499673,50cyclictest17939-21taskset10:37:413
1384499673,50cyclictest17939-21taskset10:37:413
1384499673,49cyclictest8130-21taskset11:16:053
1384499673,49cyclictest8130-21taskset11:16:053
1384499672,51cyclictest5127-21taskset10:17:263
1384499672,51cyclictest5127-21taskset10:17:263
1384499672,50cyclictest23357-21taskset10:47:263
1384499672,49cyclictest1233-21chrt09:17:363
1383799673,48cyclictest26566-21fschecks_count10:52:321
1383799673,48cyclictest26566-21fschecks_count10:52:321
1383399675,53cyclictest9810-21ssh09:32:200
1383399675,53cyclictest9810-21ssh09:32:200
1383399673,50cyclictest21377-21fschecks_time07:17:330
13833996717,12cyclictest27764-21ssh11:47:390
130972676,43sleep30-21swapper/306:52:583
130972676,43sleep30-21swapper/306:52:583
1384499663,48cyclictest14350-21taskset12:19:363
13844996634,23cyclictest0-21swapper/309:57:273
1384499662,52cyclictest21077-21chrt08:57:133
1384499662,50cyclictest28967-21chrt07:42:123
1384499662,50cyclictest28967-21chrt07:42:123
1383799663,34cyclictest23568-21timerwakeupswit07:22:461
13833996643,15cyclictest0-21swapper/008:57:320
13833996643,15cyclictest0-21swapper/008:57:320
1383399664,27cyclictest17301-21/usr/sbin/munin10:37:280
1383399664,27cyclictest17301-21/usr/sbin/munin10:37:280
1383399663,27cyclictest10653-21grep12:12:480
1384499653,48cyclictest9091-21chrt11:17:233
1384499653,48cyclictest30730-21taskset10:58:423
1384499652,50cyclictest32393-21chrt10:07:493
1384499652,49cyclictest9904-21chrt08:22:263
1384499652,49cyclictest9904-21chrt08:22:263
1384499652,49cyclictest710-21chrt11:02:473
1384499652,49cyclictest22384-21chrt10:45:323
1384499652,49cyclictest22384-21chrt10:45:323
13837996541,14cyclictest0-21swapper/108:27:321
13837996541,14cyclictest0-21swapper/108:27:321
13837996535,10cyclictest181rcu_preempt09:00:421
13837996535,10cyclictest181rcu_preempt09:00:421
1383399653,45cyclictest26221-21fschecks_time07:32:320
1383399653,45cyclictest26221-21fschecks_time07:32:320
1383399653,30cyclictest30523-21cron07:47:100
1384499643,48cyclictest21098-21chrt11:37:133
1384499643,47cyclictest4852-21chrt08:07:113
1384499643,47cyclictest4852-21chrt08:07:113
1384499643,47cyclictest27562-21taskset11:47:353
1384499643,47cyclictest14703-21chrt10:32:353
1384499643,46cyclictest0-21swapper/309:42:213
1384499643,46cyclictest0-21swapper/309:42:213
1384499642,49cyclictest23227-21taskset11:40:253
1384499642,48cyclictest26367-21chrt11:45:573
1384499642,48cyclictest19191-21taskset09:47:343
13837996449,9cyclictest10749-21timerandwakeup09:32:451
13837996449,9cyclictest10749-21timerandwakeup09:32:451
13837996439,12cyclictest0-21swapper/108:42:131
13837996439,12cyclictest0-21swapper/108:42:131
1383799643,14cyclictest0-21swapper/111:37:131
13837996414,19cyclictest11468-21grep08:27:131
13837996414,19cyclictest11468-21grep08:27:131
1383399643,44cyclictest856-21sh09:17:260
1383399643,41cyclictest12177-21mailstats08:27:430
1383399643,41cyclictest12177-21mailstats08:27:430
1384499637,43cyclictest32244-21chrt11:55:423
1384499633,48cyclictest6695-21chrt08:12:263
1384499633,48cyclictest6695-21chrt08:12:263
1384499633,48cyclictest14575-21chrt08:37:123
1384499633,48cyclictest14575-21chrt08:37:123
1384499633,47cyclictest15290-21chrt11:27:163
1384499633,47cyclictest15290-21chrt11:27:163
1384499632,49cyclictest24383-21chrt09:02:283
1384499632,48cyclictest8386-21chrt08:17:283
1384499632,48cyclictest6297-21taskset09:26:393
1384499632,48cyclictest22422-21chrt08:57:543
1384499632,48cyclictest22422-21chrt08:57:543
1383799637,10cyclictest0-21swapper/112:17:231
13837996340,12cyclictest0-21swapper/108:02:311
13837996340,12cyclictest0-21swapper/108:02:311
1383799633,41cyclictest26559-21wc07:32:421
1383799633,41cyclictest26559-21wc07:32:421
1383799632,50cyclictest24305-21ssh09:02:271
13837996314,18cyclictest25748-21kworker/1:2-events08:37:131
13837996314,18cyclictest25748-21kworker/1:2-events08:37:131
1383399633,34cyclictest27862-21fschecks_time07:37:330
1383399633,34cyclictest27862-21fschecks_time07:37:330
1384499624,44cyclictest3538-21taskset12:02:153
1384499624,44cyclictest3538-21taskset12:02:153
1384499623,46cyclictest31861-21chrt07:48:163
1384499623,46cyclictest27489-21chrt09:07:313
1384499623,46cyclictest27489-21chrt09:07:313
1384499623,46cyclictest11217-21chrt12:14:083
1384499622,48cyclictest27191-21chrt07:35:403
1384499622,48cyclictest27191-21chrt07:35:403
1384499622,48cyclictest22958-21chrt09:52:493
1384499622,47cyclictest8947-21taskset12:11:083
1384499622,47cyclictest3306-21chrt12:02:113
1384499622,47cyclictest16683-21taskset08:42:353
1384499622,47cyclictest16683-21taskset08:42:353
1384499622,47cyclictest11376-21taskset10:27:283
1384499622,46cyclictest3489-21taskset11:07:423
13837996240,11cyclictest0-21swapper/107:42:461
1383799623,44cyclictest19789-21fschecks_count08:52:311
1384499613,46cyclictest8482-21taskset09:29:193
1384499613,45cyclictest9184-21chrt10:22:503
1384499613,45cyclictest17453-21chrt12:24:593
1384499613,44cyclictest18715-21taskset07:07:503
1384499612,47cyclictest30593-21chrt10:06:073
1384499612,47cyclictest30593-21chrt10:06:073
1384499612,47cyclictest19081-21chrt08:48:593
1384499612,46cyclictest22129-21chrt07:17:503
1384499612,46cyclictest20676-21chrt07:14:503
1384499612,45cyclictest12303-21chrt08:27:453
1384499612,45cyclictest12303-21chrt08:27:453
1383799613,33cyclictest352-21runrttasks08:49:221
1384499603,43cyclictest0-21swapper/309:37:263
1384499602,46cyclictest11573-21chrt09:34:343
1384499602,46cyclictest11573-21chrt09:34:343
1384499602,45cyclictest2999-21chrt08:00:063
1384499602,45cyclictest25633-21chrt07:31:193
1384499602,45cyclictest25633-21chrt07:31:193
1384499602,45cyclictest13743-21chrt11:24:203
1384499602,45cyclictest13743-21chrt11:24:203
1384499602,45cyclictest1357-21chrt07:54:403
1384499602,43cyclictest0-21swapper/308:37:233
1384499602,43cyclictest0-21swapper/308:37:233
1384499593,42cyclictest22723-21chrt07:22:193
1384499592,45cyclictest29202-21chrt07:42:243
1384499592,44cyclictest6133-21chrt08:08:373
1384499592,44cyclictest6133-21chrt08:08:373
1384499592,44cyclictest30245-21chrt09:12:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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