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2026-06-21 - 17:06
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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 Sun Jun 21, 2026 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15292210190,4sleep015295-21cut06:58:410
153679910440,56cyclictest0-21swapper/112:08:371
15338991042,94cyclictest0-21swapper/009:18:500
15338991042,61cyclictest18925-21find10:39:110
153389910353,44cyclictest2374-21systemd-journal11:17:570
153389910341,55cyclictest31602-21ssh11:01:020
153389910241,53cyclictest0-21swapper/008:38:370
15338991013,90cyclictest0-21swapper/008:18:490
15367999942,49cyclictest0-21swapper/110:08:541
15338999940,51cyclictest0-21swapper/011:54:110
15338999940,51cyclictest0-21swapper/011:54:110
15377999842,33cyclictest19930-21latency_hist09:48:392
15367999826,13cyclictest0-21swapper/110:03:411
15338999837,54cyclictest0-21swapper/011:28:450
1533899983,64cyclictest10434-21sh11:19:300
1533899983,64cyclictest10434-21sh11:19:300
15338999833,45cyclictest16693-21rm09:42:560
15338999833,45cyclictest16693-21rm09:42:560
1533899982,66cyclictest31050-21taskset09:12:470
1533899982,66cyclictest31050-21taskset09:12:470
15367999738,11cyclictest0-21swapper/108:38:591
15367999738,11cyclictest0-21swapper/108:38:591
1536799973,34cyclictest26847-21latency_hist11:48:401
1536799973,34cyclictest26847-21latency_hist11:48:401
15367999730,14cyclictest0-21swapper/110:34:141
15367999730,14cyclictest0-21swapper/110:34:141
1533899973,60cyclictest8839-21runrttasks08:14:120
1533899973,60cyclictest8839-21runrttasks08:14:120
15338999735,54cyclictest0-21swapper/007:18:370
15338999734,53cyclictest0-21swapper/009:59:040
1533899972,51cyclictest9471-21tune2fs10:23:590
1533899972,51cyclictest9471-21tune2fs10:23:590
1536799963,38cyclictest352-21runrttasks11:00:221
1536799963,33cyclictest6870-21sort12:09:311
15338999632,57cyclictest0-21swapper/009:30:060
15338999632,57cyclictest0-21swapper/009:30:060
15338999631,59cyclictest0-21swapper/010:23:400
15338999611,77cyclictest156922chrt06:59:220
15338999611,77cyclictest156922chrt06:59:220
15367999546,43cyclictest0-21swapper/111:19:011
15367999546,43cyclictest0-21swapper/111:19:011
1536799954,37cyclictest28912-21fschecks_count09:08:581
1536799954,37cyclictest28912-21fschecks_count09:08:581
1536799954,37cyclictest1-21systemd08:28:381
15367999534,9cyclictest0-21swapper/110:44:061
15367999531,9cyclictest0-21swapper/109:28:381
15367999531,9cyclictest0-21swapper/109:28:381
15338999538,52cyclictest0-21swapper/009:28:390
15338999538,52cyclictest0-21swapper/009:28:390
1533899952,60cyclictest23416-21ssh10:48:000
15338999522,63cyclictest161ktimers/007:38:510
15367999441,45cyclictest3797-21latency11:09:031
15367999441,45cyclictest3797-21latency11:09:031
15367999438,49cyclictest15730-21fschecks_time12:23:591
15367999437,49cyclictest0-21swapper/109:34:531
1536799943,40cyclictest6532-21fschecks_count11:13:581
1536799943,33cyclictest8445-21/usr/sbin/munin09:30:121
1536799943,33cyclictest8445-21/usr/sbin/munin09:30:121
15367999433,11cyclictest0-21swapper/110:13:571
1536799942,34cyclictest29640-21/usr/sbin/munin10:04:531
15338999440,47cyclictest0-21swapper/011:59:120
1533899943,81cyclictest26920-21ssh11:48:410
1533899943,78cyclictest0-21swapper/010:48:520
1533899942,83cyclictest26188-21netstat09:04:030
150452946,16sleep10-21swapper/106:58:181
1536799934,35cyclictest6670-21grep08:08:591
1536799934,35cyclictest6670-21grep08:08:591
1536799934,35cyclictest12830-21ssh11:24:091
1536799934,35cyclictest12830-21ssh11:24:091
1536799934,32cyclictest31648-21/usr/sbin/munin09:14:001
15367999336,12cyclictest0-21swapper/112:14:021
1536799933,41cyclictest2499-21grep09:19:001
15367999334,13cyclictest0-21swapper/108:58:391
15367999334,13cyclictest0-21swapper/108:58:391
1536799933,36cyclictest22268-21latency_hist07:18:401
1536799933,36cyclictest14397-21rm09:38:551
1536799933,36cyclictest14397-21rm09:38:551
1536799933,33cyclictest28333-21mailstats07:35:141
15367999331,10cyclictest0-21swapper/108:49:101
1536799932,46cyclictest13012-21switchtime10:29:131
15367999324,12cyclictest0-21swapper/107:24:131
15367999324,12cyclictest0-21swapper/107:24:131
1536799932,34cyclictest440-21cpu11:58:521
15338999334,48cyclictest0-21swapper/012:03:510
1536799923,38cyclictest17233-21munin-node07:18:481
1536799923,35cyclictest3045-21idleruntime-cro11:08:361
1536799923,34cyclictest8269-21fschecks_count08:13:581
1536799923,34cyclictest8269-21fschecks_count08:13:581
15367999225,12cyclictest0-21swapper/107:54:001
1536799922,38cyclictest24992-21unixbench_multi10:49:141
1536799922,34cyclictest25633-21/usr/sbin/munin09:04:121
1536799922,29cyclictest3848-21wc07:59:091
1533899923,57cyclictest31436-21/usr/sbin/munin07:44:090
1533899923,57cyclictest31436-21/usr/sbin/munin07:44:090
15338999229,55cyclictest0-21swapper/009:38:400
1533899922,58cyclictest5781-21rm11:13:040
1533899922,58cyclictest5781-21rm11:13:040
1536799914,36cyclictest352-21runrttasks08:33:381
1536799914,33cyclictest9186-21/usr/sbin/munin10:24:011
1536799914,33cyclictest9186-21/usr/sbin/munin10:24:011
15367999137,9cyclictest0-21swapper/110:19:011
1536799913,36cyclictest14592-21sort08:33:531
1536799913,34cyclictest23481-21/usr/sbin/munin09:54:061
1536799913,34cyclictest23481-21/usr/sbin/munin09:54:061
1536799913,32cyclictest26352-21grep07:29:091
15367999130,11cyclictest0-21swapper/109:43:521
1536799912,37cyclictest16042-21cat11:29:111
1533899913,80cyclictest11614-21ssh12:17:100
15338999132,54cyclictest0-21swapper/007:23:400
15338999132,50cyclictest0-21swapper/007:09:040
1533899912,80cyclictest0-21swapper/011:23:520
1533899912,80cyclictest0-21swapper/011:23:520
1533899912,58cyclictest25456-21rm11:45:150
1533899912,58cyclictest25456-21rm11:45:150
1536799904,33cyclictest30148-21fschecks_count11:53:591
1536799904,33cyclictest30148-21fschecks_count11:53:591
1536799904,32cyclictest352-21runrttasks10:53:531
15367999041,41cyclictest0-21swapper/109:49:591
1536799903,36cyclictest23242-21ntp_kernel_pll_08:59:051
1536799903,35cyclictest11020-21latency_hist08:23:401
1536799903,34cyclictest13230-21fschecks_count12:20:291
1536799903,32cyclictest6338-21latency_hist08:08:401
1536799903,29cyclictest352-21runrttasks11:38:241
1536799902,39cyclictest32191-21awk07:48:381
1536799902,39cyclictest32191-21awk07:48:381
1533899903,59cyclictest398-21sh09:14:280
15338999034,49cyclictest0-21swapper/008:39:130
15338999034,49cyclictest0-21swapper/008:39:130
15377998969,15cyclictest15319-21cyclictest09:54:152
15377998969,15cyclictest15319-21cyclictest09:54:152
1536799893,36cyclictest27537-21ntpq11:49:041
1536799893,33cyclictest15978-21idleruntime06:59:371
1536799893,33cyclictest15978-21idleruntime06:59:371
1536799892,34cyclictest18364-21find08:44:091
1533899893,75cyclictest766-21fschecks_count10:09:260
1537799883,62cyclictest27108-21apt-get07:33:512
1536799884,32cyclictest17606-21fschecks_time07:03:501
1536799884,30cyclictest23830-21latency_hist11:43:401
1536799883,32cyclictest32643-21fschecks_count07:48:591
1536799883,29cyclictest18045-21/usr/sbin/munin10:39:151
15367998832,12cyclictest0-21swapper/107:11:131
15338998831,50cyclictest0-21swapper/008:29:130
15377998762,19cyclictest32681-21latency_hist11:58:402
15377998762,19cyclictest32681-21latency_hist11:58:402
1536799873,35cyclictest29485-21fschecks_time07:39:011
1533899873,73cyclictest22342-21diskmemload11:33:460
15338998736,44cyclictest22342-21diskmemload12:25:460
15338998735,46cyclictest22342-21diskmemload09:50:130
15338998735,45cyclictest0-21swapper/007:24:070
15338998735,45cyclictest0-21swapper/007:24:070
15338998734,46cyclictest0-21swapper/010:33:550
15338998734,46cyclictest0-21swapper/010:33:550
1533899872,56cyclictest18382-21ssh09:44:150
1533899872,55cyclictest24170-21ssh09:00:210
1533899872,49cyclictest0-21swapper/010:29:010
15377998668,13cyclictest0-21swapper/210:09:012
15338998631,48cyclictest0-21swapper/009:58:390
15338998631,48cyclictest0-21swapper/009:58:390
15338998630,49cyclictest0-21swapper/012:08:510
1533899848,65cyclictest27608-21apt-get07:33:510
1533899843,71cyclictest0-21swapper/007:58:480
15338998427,50cyclictest15350irq/295-2188000.ethernet10:04:540
15338998427,50cyclictest0-21swapper/011:04:070
15377998363,14cyclictest15319-21cyclictest09:59:152
15377998356,18cyclictest9777-21cstates08:18:552
15377998319,28cyclictest31192-21sh09:13:112
15377998319,28cyclictest31192-21sh09:13:112
15377998318,32cyclictest20680-21cron10:43:362
15377998315,26cyclictest0-21swapper/212:24:122
1533899824,72cyclictest0-21swapper/008:08:510
1533899824,72cyclictest0-21swapper/008:08:510
1533899823,72cyclictest12694-21ssh12:18:520
1533899823,71cyclictest3434-21cpuspeed10:13:520
1533899823,66cyclictest4836-21apt-get08:03:490
15338998226,51cyclictest0-21swapper/008:54:090
15338998226,51cyclictest0-21swapper/008:54:090
15377998132,22cyclictest0-21swapper/212:04:122
15377998121,28cyclictest27615-21wc10:54:102
15377998121,25cyclictest1765-21ssh11:59:582
15377998115,29cyclictest0-21swapper/209:23:532
15377998115,29cyclictest0-21swapper/209:23:532
1533899813,72cyclictest0-21swapper/010:53:530
15338998130,44cyclictest0-21swapper/008:24:030
15338998119,52cyclictest0-21swapper/007:53:400
1506728114,40sleep30-21swapper/306:58:373
15377998048,18cyclictest0-21swapper/209:29:202
15377998048,18cyclictest0-21swapper/209:29:202
15377998015,28cyclictest0-21swapper/208:44:002
15338998052,22cyclictest11085-21ntpd11:39:000
1533899802,69cyclictest26810-21chrt07:29:520
15338998015,56cyclictest17967-21idleruntime07:04:030
15377997965,7cyclictest0-21swapper/209:23:372
15377997935,13cyclictest181rcu_preempt10:05:372
15377997921,25cyclictest24060-21seq09:00:012
15338997919,52cyclictest2679-21seq07:55:080
1516427912,41sleep215166-21munin-run06:58:402
15377997821,24cyclictest8757-21ssh11:18:092
15377997820,20cyclictest14910-21ssh09:39:082
15377997820,20cyclictest14910-21ssh09:39:082
15338997824,46cyclictest0-21swapper/008:44:130
15377997756,16cyclictest15319-21cyclictest12:22:442
15377997754,13cyclictest0-21swapper/209:34:062
15377997746,24cyclictest352-21runrttasks10:29:112
1537799773,26cyclictest3460-21fschecks_time07:58:592
15377997722,20cyclictest17748-21cron10:38:372
15377997722,20cyclictest17748-21cron10:38:372
15377997720,23cyclictest16710-21ssh11:30:332
15377997718,23cyclictest19318-21taskset11:34:342
15377997653,14cyclictest7699-21timerandwakeup12:09:512
15377997648,20cyclictest21327-21fschecks_time10:44:002
15377997618,27cyclictest27969-21ssh09:07:362
15377997615,27cyclictest0-21swapper/210:48:542
15377997613,27cyclictest0-21swapper/207:44:042
15377997613,27cyclictest0-21swapper/207:44:042
15377997613,26cyclictest0-21swapper/211:00:022
1533899762,59cyclictest20764-21unin-run08:53:380
15377997531,31cyclictest20996-21apt-get08:53:492
15377997531,31cyclictest20996-21apt-get08:53:492
15377997519,26cyclictest9210-21taskset08:16:052
15377997519,26cyclictest9210-21taskset08:16:052
15377997519,26cyclictest22461-21ssh09:51:382
15377997518,26cyclictest23237-21taskset11:42:202
15377997450,12cyclictest0-21swapper/207:58:412
15377997422,20cyclictest1204-21taskset07:51:552
15377997357,8cyclictest0-21swapper/207:03:502
15377997353,10cyclictest0-21swapper/207:33:392
15377997331,32cyclictest24000-21ssh11:43:462
15377997331,32cyclictest24000-21ssh11:43:462
15377997330,33cyclictest0-21swapper/209:13:482
15377997251,12cyclictest0-21swapper/207:13:582
15377997245,18cyclictest9411-21ssh10:23:582
15377997245,18cyclictest9411-21ssh10:23:582
15377997212,26cyclictest0-21swapper/210:19:492
15392997129,29cyclictest12777-21taskset10:29:073
15377997155,10cyclictest20764-21unin-run08:53:382
15377997141,21cyclictest29225-21apt-get07:38:512
15377997117,23cyclictest16739-21taskset07:00:382
15377997117,23cyclictest16739-21taskset07:00:382
15377997054,9cyclictest0-21swapper/211:03:482
15377997049,16cyclictest15319-21cyclictest10:17:112
15377997047,15cyclictest15319-21cyclictest12:18:372
15377997014,24cyclictest0-21swapper/211:18:462
15377997014,24cyclictest0-21swapper/211:18:462
15377996953,11cyclictest12525-21idleruntime11:24:002
15377996953,11cyclictest12525-21idleruntime11:24:002
15377996950,9cyclictest0-21swapper/207:24:102
15377996950,9cyclictest0-21swapper/207:24:102
15377996946,17cyclictest12858-21latency_hist08:28:412
15377996930,33cyclictest0-21swapper/207:08:492
15377996921,8cyclictest181rcu_preempt08:38:592
15377996921,8cyclictest181rcu_preempt08:38:592
15377996913,22cyclictest0-21swapper/211:53:072
15392996829,26cyclictest17502-21taskset07:03:473
15392996827,28cyclictest13350-21taskset12:20:313
15377996820,41cyclictest4370-21grep11:09:142
15377996820,41cyclictest4370-21grep11:09:142
15392996731,23cyclictest26705-21chrt11:48:383
15392996731,23cyclictest26705-21chrt11:48:383
15377996742,12cyclictest0-21swapper/208:33:402
15392996632,22cyclictest3380-21chrt11:08:523
15392996632,22cyclictest3380-21chrt11:08:523
15392996629,22cyclictest11888-21chrt12:17:573
15392996627,25cyclictest8343-21taskset12:11:133
15392996531,22cyclictest18723-21chrt10:39:083
15392996528,24cyclictest8603-21taskset09:29:143
15392996528,24cyclictest8603-21taskset09:29:143
15392996527,25cyclictest21031-21taskset10:43:513
15392996527,25cyclictest1700-21chrt09:18:053
15392996526,24cyclictest29667-21chrt10:03:493
15377996544,14cyclictest15319-21cyclictest08:09:142
15377996544,14cyclictest15319-21cyclictest08:09:142
15377996526,30cyclictest6372-21wc08:08:412
15392996428,22cyclictest11511-21chrt09:33:563
15392996426,24cyclictest9693-21chrt08:18:533
15392996426,24cyclictest529-21taskset10:09:123
15392996425,26cyclictest31558-21taskset11:55:473
15392996425,26cyclictest31558-21taskset11:55:473
15392996330,21cyclictest5617-21chrt09:24:003
15392996330,21cyclictest5617-21chrt09:24:003
15392996330,20cyclictest23024-21chrt09:53:143
15392996328,23cyclictest27122-21chrt10:53:563
15392996328,21cyclictest4183-21chrt10:14:113
15392996328,21cyclictest21003-21chrt08:53:523
15392996328,21cyclictest21003-21chrt08:53:523
15392996327,22cyclictest14218-21chrt11:26:573
15392996327,22cyclictest14218-21chrt11:26:573
15392996324,23cyclictest15064-21taskset10:33:413
15392996324,23cyclictest15064-21taskset10:33:413
15377996344,10cyclictest0-21swapper/208:34:112
15377996338,15cyclictest0-21swapper/207:19:002
15392996230,19cyclictest30666-21chrt10:59:113
15392996229,19cyclictest16925-21chrt11:31:103
15392996228,22cyclictest17659-21chrt12:27:323
15392996227,22cyclictest3234-21chrt07:58:523
15392996227,22cyclictest24362-21chrt09:54:163
15392996227,22cyclictest24362-21chrt09:54:163
15392996227,22cyclictest24099-21chrt09:00:083
15392996227,21cyclictest23993-21chrt10:48:493
15392996141,10cyclictest22542-21chrt07:18:543
15392996128,21cyclictest3861-21chrt09:20:443
15392996128,20cyclictest8281-21chrt08:13:593
15392996128,20cyclictest8281-21chrt08:13:593
15392996128,19cyclictest28072-21chrt11:49:153
15392996128,19cyclictest25983-21chrt07:28:583
15392996127,22cyclictest15693-21chrt09:40:053
15392996127,22cyclictest15693-21chrt09:40:053
15392996127,21cyclictest25671-21chrt09:03:493
15392996127,21cyclictest14100-21chrt08:31:413
15392996126,22cyclictest7409-21chrt11:14:163
15392996125,23cyclictest29096-21chrt10:03:363
15392996125,22cyclictest10438-21chrt10:24:373
15392996125,22cyclictest10438-21chrt10:24:373
15392996029,19cyclictest6482-21chrt08:08:523
15392996029,19cyclictest6482-21chrt08:08:523
15392996027,22cyclictest4458-21chrt12:04:153
15392996027,21cyclictest9410-21chrt11:18:543
15392996027,21cyclictest9410-21chrt11:18:543
15392996027,21cyclictest7720-21chrt10:20:153
15392996027,21cyclictest20596-21chrt08:52:023
15392996027,21cyclictest19045-21chrt09:46:093
15392996027,20cyclictest29228-21chrt07:38:513
15392996026,21cyclictest11823-21chrt08:24:073
15392996025,23cyclictest20926-21chrt07:13:473
15392996025,22cyclictest424-21chrt11:58:523
15392996025,22cyclictest396-21chrt11:03:543
1539299593,34cyclictest917-21kworker/3:1+events06:59:263
1539299593,34cyclictest917-21kworker/3:1+events06:59:263
15392995927,20cyclictest18760-21chrt08:44:293
15392995926,21cyclictest1628-21chrt07:53:533
15392995926,20cyclictest20516-21chrt07:11:573
15392995925,21cyclictest31874-21chrt07:44:583
15392995925,21cyclictest31874-21chrt07:44:583
15392995925,21cyclictest19299-21chrt11:34:313
15392995924,23cyclictest23193-21chrt11:42:133
15392995827,20cyclictest5342-21chrt08:04:063
15392995826,21cyclictest17451-21chrt08:43:233
15392995826,21cyclictest17451-21chrt08:43:233
15392995826,20cyclictest1062-21chrt07:50:013
15392995825,21cyclictest27672-21chrt07:34:293
15392995822,23cyclictest28646-21taskset09:08:443
15392995822,23cyclictest28646-21taskset09:08:443
15392995724,20cyclictest14507-21chrt08:33:433
1539299563,35cyclictest25510-21taskset07:28:383
1539299563,35cyclictest25510-21taskset07:28:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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