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2026-06-09 - 03:35
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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 Tue Jun 09, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9981212515,71sleep010068-21grep18:55:160
9981212515,71sleep010068-21grep18:55:160
105849910967,21cyclictest181rcu_preempt21:30:201
105849910419,32cyclictest0-21swapper/122:40:021
105849910213,79cyclictest19422-21apt-get22:49:461
105849910178,16cyclictest19974-21ssh23:44:451
21042990,7sleep10-21swapper/122:20:041
21042990,7sleep10-21swapper/122:20:041
10584999873,9cyclictest181rcu_preempt20:24:311
1058499963,55cyclictest7954-21apt-get23:25:321
1058499963,55cyclictest7954-21apt-get23:25:321
10580999679,11cyclictest277-21dbus-daemon22:49:290
10580999679,11cyclictest277-21dbus-daemon22:49:290
10584999563,8cyclictest181rcu_preempt20:39:511
10584999557,13cyclictest181rcu_preempt21:03:431
10584999557,13cyclictest181rcu_preempt21:03:431
10591999431,29cyclictest19214-21runrttasks21:54:532
10584999459,13cyclictest181rcu_preempt20:19:031
10584999360,11cyclictest181rcu_preempt00:06:401
10584999318,58cyclictest9816-21apt-get21:39:541
10584999318,58cyclictest9816-21apt-get21:39:541
10591999276,8cyclictest0-21swapper/200:09:482
10591999235,21cyclictest297-21systemd-logind19:39:292
10591999231,25cyclictest4091-21taskset22:24:382
10591999230,30cyclictest8278-21runrttasks23:25:332
10591999230,30cyclictest8278-21runrttasks23:25:332
10584999251,25cyclictest10571-21cyclictest23:10:021
10580999263,8cyclictest0-21swapper/023:44:430
10591999129,30cyclictest31156-21ssh22:14:542
10584999147,11cyclictest181rcu_preempt21:22:491
10580999172,9cyclictest0-21swapper/023:34:460
10591999030,29cyclictest9222-21seq20:32:112
10584999034,10cyclictest0-21swapper/122:02:211
10591998967,16cyclictest6469-21latency_hist21:34:312
10591998930,24cyclictest19884-21ssh23:44:432
10591998928,26cyclictest2814-21ssh22:21:472
10591998928,26cyclictest2814-21ssh22:21:472
10591998924,29cyclictest0-21swapper/200:19:572
10584998965,10cyclictest181rcu_preempt00:25:181
10584998956,13cyclictest181rcu_preempt19:54:481
10584998949,19cyclictest181rcu_preempt21:27:031
10584998948,13cyclictest181rcu_preempt19:04:371
10584998946,8cyclictest181rcu_preempt20:35:021
10591998830,18cyclictest235742sh22:55:182
10584998853,12cyclictest181rcu_preempt23:01:071
10580998855,17cyclictest181rcu_preempt23:19:280
10591998765,11cyclictest0-21swapper/200:04:312
10591998757,21cyclictest27902-21idleruntime19:49:502
10591998743,37cyclictest16219-21ssh22:44:432
10591998743,37cyclictest16219-21ssh22:44:432
10591998728,25cyclictest17466-21seq20:59:252
10591998725,25cyclictest5872-21taskset00:14:582
10591998725,25cyclictest5872-21taskset00:14:582
10584998752,13cyclictest181rcu_preempt19:49:541
10580998742,37cyclictest0-21swapper/021:04:410
10591998629,23cyclictest26159-21fschecks_time23:54:522
10591998629,23cyclictest26159-21fschecks_time23:54:522
10591998628,27cyclictest17497-21diskmemload22:40:322
10591998626,29cyclictest21100-21taskset22:51:422
10584998646,13cyclictest181rcu_preempt21:53:101
10584998646,13cyclictest181rcu_preempt21:53:101
10584998645,14cyclictest181rcu_preempt00:10:031
10584998633,17cyclictest0-21swapper/118:59:321
10584998633,17cyclictest0-21swapper/118:59:321
10591998565,9cyclictest0-21swapper/221:11:032
10591998562,12cyclictest0-21swapper/220:14:312
10591998529,22cyclictest17497-21diskmemload23:13:002
10591998529,20cyclictest1384-21sh00:07:522
10591998528,24cyclictest22250-21seq19:31:272
10591998528,22cyclictest20026-21taskset21:02:322
10591998528,22cyclictest20026-21taskset21:02:322
10591998527,28cyclictest28747-21ssh22:10:072
10591998527,28cyclictest28747-21ssh22:10:072
10591998527,23cyclictest7704-21ssh22:29:592
10591998522,30cyclictest15466-21ssh23:36:212
10584998560,11cyclictest181rcu_preempt20:04:491
10584998551,12cyclictest181rcu_preempt20:55:021
10584998551,10cyclictest181rcu_preempt20:54:251
10584998546,20cyclictest181rcu_preempt22:25:041
10584998546,13cyclictest181rcu_preempt21:14:371
10584998546,13cyclictest181rcu_preempt21:14:371
10580998562,12cyclictest0-21swapper/019:15:050
10591998464,11cyclictest0-21swapper/219:59:512
10591998428,19cyclictest12434-21seq20:42:042
10591998423,26cyclictest19578-21munin-run23:44:292
10591998423,26cyclictest19578-21munin-run23:44:292
10591998421,28cyclictest10943-21cut21:41:062
10591998421,28cyclictest10943-21cut21:41:062
10584998460,15cyclictest2374-21systemd-journal21:39:281
10584998445,12cyclictest181rcu_preempt19:29:511
10584998429,31cyclictest0-21swapper/122:59:301
10580998464,14cyclictest25127-21threads19:40:020
10580998457,21cyclictest21763-21ssh22:53:360
10591998363,11cyclictest0-21swapper/219:04:302
10591998363,11cyclictest0-21swapper/219:04:302
10591998329,25cyclictest12321-21taskset23:30:502
10591998329,24cyclictest25318-21taskset23:53:552
10591998327,20cyclictest10844-21seq20:37:182
10591998320,25cyclictest15825-21runrttasks20:53:582
10584998359,18cyclictest27985-21sh23:04:311
10584998359,18cyclictest27985-21sh23:04:311
10584998348,13cyclictest181rcu_preempt23:37:021
10584998344,13cyclictest181rcu_preempt22:06:081
10584998331,29cyclictest0-21swapper/120:34:051
10584998328,17cyclictest0-21swapper/121:07:581
10591998229,20cyclictest4546-21seq20:19:232
10591998228,24cyclictest352-21runrttasks21:05:462
10591998228,23cyclictest32718-21taskset21:24:242
10591998225,21cyclictest10052-21ssh22:34:392
10591998223,25cyclictest16633-21sort21:50:032
10591998223,25cyclictest16633-21sort21:50:032
10584998248,8cyclictest181rcu_preempt22:35:031
10584998243,12cyclictest181rcu_preempt19:45:081
10584998243,12cyclictest181rcu_preempt19:45:081
10584998242,17cyclictest181rcu_preempt20:04:311
10584998231,29cyclictest0-21swapper/122:14:371
10591998158,17cyclictest297-21systemd-logind19:29:302
10591998158,15cyclictest2374-21systemd-journal21:37:022
10591998150,21cyclictest25867-21latency_hist19:44:312
10591998128,20cyclictest13257-21taskset00:28:002
10591998121,27cyclictest22190-21ssh21:59:542
10584998151,8cyclictest181rcu_preempt23:54:541
10584998151,8cyclictest181rcu_preempt23:54:541
10584998146,8cyclictest181rcu_preempt21:10:471
10584998143,16cyclictest181rcu_preempt20:09:581
10580998164,10cyclictest24526-21rm23:51:400
10580998155,21cyclictest7835-21kworker/u19:0-nfsiod22:15:490
10591998028,23cyclictest3006-21ssh21:28:422
10591998026,21cyclictest1089-21seq20:06:352
10591998021,24cyclictest27507-21runrttasks23:03:072
10591998020,29cyclictest25589-21timerwakeupswit22:05:012
10584998048,12cyclictest181rcu_preempt23:21:321
10584998042,10cyclictest181rcu_preempt23:30:061
10584998041,12cyclictest181rcu_preempt22:32:471
10584998030,19cyclictest0-21swapper/100:24:301
10584998028,24cyclictest0-21swapper/120:44:471
10580998063,11cyclictest9314-21ssh21:39:290
10580998057,16cyclictest3812-21systemd-run22:24:300
10580998057,16cyclictest3812-21systemd-run22:24:300
10591997964,11cyclictest10571-21cyclictest21:45:032
10591997926,43cyclictest27708-21awk21:14:592
10591997926,43cyclictest27708-21awk21:14:592
10584997956,8cyclictest181rcu_preempt19:14:451
10584997954,10cyclictest181rcu_preempt19:39:311
10584997951,8cyclictest181rcu_preempt21:56:171
10584997947,12cyclictest181rcu_preempt00:16:421
10584997947,12cyclictest181rcu_preempt00:16:421
10584997945,8cyclictest181rcu_preempt22:48:301
10584997945,8cyclictest181rcu_preempt22:48:301
10584997942,10cyclictest181rcu_preempt18:59:331
10584997942,10cyclictest181rcu_preempt18:59:331
10584997933,12cyclictest0-21swapper/120:19:441
10584997933,12cyclictest0-21swapper/120:19:441
10584997911,24cyclictest0-21swapper/123:18:521
10580997960,10cyclictest0-21swapper/023:59:590
10591997862,9cyclictest0-21swapper/219:59:312
10591997861,10cyclictest0-21swapper/219:04:562
10591997858,9cyclictest0-21swapper/220:19:502
10591997858,9cyclictest0-21swapper/220:19:502
10591997837,36cyclictest0-21swapper/223:19:422
10591997821,25cyclictest4166-21taskset23:18:412
10584997855,8cyclictest181rcu_preempt23:42:571
10584997855,8cyclictest181rcu_preempt23:42:571
10584997850,9cyclictest181rcu_preempt22:11:251
10584997850,9cyclictest181rcu_preempt22:11:251
10584997850,13cyclictest181rcu_preempt19:24:321
10584997849,14cyclictest181rcu_preempt19:14:311
10584997847,12cyclictest181rcu_preempt23:54:151
10584997825,31cyclictest0-21swapper/121:45:011
10580997862,11cyclictest10571-21cyclictest21:50:010
10580997862,11cyclictest10571-21cyclictest21:50:010
10580997861,10cyclictest13791-21unixbench_singl19:05:070
10580997828,12cyclictest181rcu_preempt23:09:270
10580997828,12cyclictest181rcu_preempt23:09:270
1059799773,52cyclictest0-21swapper/319:29:523
10591997715,28cyclictest0-21swapper/219:44:422
10591997715,28cyclictest0-21swapper/219:44:422
10584997755,14cyclictest29963-21ssh00:00:161
10584997746,8cyclictest181rcu_preempt19:39:531
10584997743,16cyclictest181rcu_preempt19:27:411
10580997755,15cyclictest10571-21cyclictest22:40:140
10580997751,19cyclictest32067-21grep00:04:510
10591997658,8cyclictest0-21swapper/223:05:012
10591997658,8cyclictest0-21swapper/223:05:012
10591997655,11cyclictest0-21swapper/220:24:502
10591997628,24cyclictest17359-21seq19:18:592
10591997618,27cyclictest18952-21runrttasks19:23:502
10580997657,9cyclictest0-21swapper/022:34:590
1058099764,27cyclictest6312-21grep00:15:040
1058099764,27cyclictest6312-21grep00:15:040
10580997634,31cyclictest24340-21sh22:04:270
1059799754,44cyclictest0-21swapper/322:49:433
10580997558,11cyclictest26394-21ssh22:06:540
1058099754,60cyclictest7954-21apt-get23:24:420
1058099754,60cyclictest7954-21apt-get23:24:420
1058099752,36cyclictest0-21swapper/021:56:520
10591997455,12cyclictest0-21swapper/218:59:322
10591997455,12cyclictest0-21swapper/218:59:322
10591997424,20cyclictest352-21runrttasks20:46:332
10580997455,9cyclictest0-21swapper/019:54:530
10580997453,16cyclictest10571-21cyclictest00:24:490
1058099742,30cyclictest27754-21ssh23:57:240
1058099742,30cyclictest27754-21ssh23:57:240
10580997419,24cyclictest8194-21sh22:30:060
10591997318,26cyclictest15637-21runrttasks19:12:272
10580997356,9cyclictest0-21swapper/021:40:110
10580997356,9cyclictest0-21swapper/021:40:110
10580997355,13cyclictest10571-21cyclictest21:21:520
10580997349,17cyclictest1-21systemd19:29:300
10580997345,22cyclictest352-21runrttasks22:12:130
10580997345,22cyclictest352-21runrttasks22:12:130
10580997312,42cyclictest15658-21latency_hist21:49:310
10580997253,8cyclictest0-21swapper/023:39:590
10580997253,8cyclictest0-21swapper/023:39:590
1058099723,33cyclictest24673-21ntp_states21:09:570
10580997155,9cyclictest0-21swapper/000:09:440
1058099714,28cyclictest28523-21rm21:16:030
1058099714,28cyclictest28523-21rm21:16:030
10580997138,26cyclictest0-21swapper/023:22:030
10580997137,27cyclictest0-21swapper/020:59:310
1058099713,32cyclictest0-21swapper/020:04:370
1058099712,29cyclictest24826-21ssh22:58:520
1058099712,29cyclictest12640-21ssh23:31:440
10580997039,25cyclictest27487-21ssh23:03:040
1058099703,32cyclictest7820-21sendmail-msp20:29:280
10580997028,32cyclictest6954-21latency_hist22:29:300
10580996949,13cyclictest297-21systemd-logind20:44:280
1058099694,53cyclictest352-21runrttasks21:27:340
1058099694,31cyclictest0-21swapper/020:47:470
10580996937,27cyclictest1855-21kworker/u19:0-flush-179:019:35:030
1058099693,59cyclictest9239-21kworker/u17:3+rpciod21:00:320
1058099693,59cyclictest9239-21kworker/u17:3+rpciod21:00:320
1058099693,29cyclictest10267-21ssh00:22:540
1058099692,26cyclictest31838-21seq20:00:230
10580996851,8cyclictest0-21swapper/020:50:000
1058099683,35cyclictest4556-21timerandwakeup21:30:040
1058099683,31cyclictest31425-21cstates23:09:450
1058099673,46cyclictest2541-21unixbench_multi20:10:020
1058099673,31cyclictest352-21runrttasks19:32:410
1058099665,41cyclictest4914-21cpuspeed20:19:440
1058099665,41cyclictest4914-21cpuspeed20:19:440
1058099663,44cyclictest352-21runrttasks20:31:020
1058099663,23cyclictest0-21swapper/020:15:000
1058099653,41cyclictest11112-21grep20:39:300
1058099652,29cyclictest30696-21kworker/u17:3+flush-179:018:59:430
1058099652,29cyclictest30696-21kworker/u17:3+flush-179:018:59:430
28462640,7sleep30-21swapper/322:21:523
28462640,7sleep30-21swapper/322:21:523
1058099644,47cyclictest26683-21switchtime19:45:060
1058099644,47cyclictest26683-21switchtime19:45:060
1058099644,38cyclictest27590-21/usr/sbin/munin19:49:500
1058099642,24cyclictest18126-21runrttasks19:19:550
10597996350,9cyclictest451rcuc/320:38:153
1059799626,48cyclictest0-21swapper/322:39:563
1058099622,25cyclictest15739-21runrttasks19:13:490
10597996039,14cyclictest451rcuc/322:15:493
10597995947,8cyclictest451rcuc/323:55:243
10597995947,8cyclictest451rcuc/323:55:243
1059799594,35cyclictest0-21swapper/321:39:543
1059799594,35cyclictest0-21swapper/321:39:543
10597995939,13cyclictest451rcuc/323:04:123
10597995939,13cyclictest451rcuc/321:36:303
10597995939,12cyclictest451rcuc/322:27:443
10597995845,9cyclictest451rcuc/300:13:273
10597995835,16cyclictest451rcuc/319:20:583
10597995745,8cyclictest451rcuc/320:59:543
10597995745,8cyclictest451rcuc/320:59:543
10597995744,9cyclictest451rcuc/320:41:473
10597995743,9cyclictest451rcuc/322:36:113
10597995737,13cyclictest451rcuc/320:48:443
10597995736,14cyclictest451rcuc/320:05:303
10597995642,10cyclictest451rcuc/319:07:293
10597995638,11cyclictest451rcuc/319:41:163
1059799563,30cyclictest0-21swapper/323:25:363
1059799563,30cyclictest0-21swapper/323:25:363
10597995625,19cyclictest0-21swapper/321:22:023
10597995543,8cyclictest451rcuc/323:15:153
10597995543,8cyclictest451rcuc/321:10:073
10597995542,9cyclictest451rcuc/321:05:073
10597995542,9cyclictest451rcuc/319:37:593
10597995537,13cyclictest451rcuc/319:11:223
10597995442,8cyclictest451rcuc/323:08:473
10597995442,8cyclictest451rcuc/323:08:473
10597995441,9cyclictest451rcuc/320:29:363
10597995441,8cyclictest451rcuc/320:54:233
10597995440,9cyclictest451rcuc/320:55:203
10597995440,9cyclictest451rcuc/320:20:163
10597995440,9cyclictest451rcuc/320:20:163
10597995439,10cyclictest451rcuc/321:25:113
10597995438,11cyclictest451rcuc/319:59:183
10597995435,12cyclictest451rcuc/323:13:163
10597995435,12cyclictest451rcuc/320:13:243
10597995435,12cyclictest451rcuc/319:29:123
10597995435,11cyclictest451rcuc/319:50:433
10597995434,13cyclictest451rcuc/323:37:043
10597995341,8cyclictest451rcuc/319:14:383
10597995339,10cyclictest451rcuc/323:50:293
10597995339,10cyclictest451rcuc/320:15:553
10597995335,11cyclictest451rcuc/322:06:573
10597995335,11cyclictest451rcuc/320:01:213
10597995333,13cyclictest451rcuc/321:16:443
10597995333,13cyclictest451rcuc/321:16:443
10597995332,14cyclictest451rcuc/321:32:083
10597995332,14cyclictest451rcuc/300:28:473
10597995240,8cyclictest451rcuc/319:49:173
10597995240,8cyclictest451rcuc/319:49:173
10597995237,10cyclictest451rcuc/300:00:223
1059799523,36cyclictest21016-21taskset21:58:293
1059799523,36cyclictest11045-21chrt18:59:513
1059799523,36cyclictest11045-21chrt18:59:513
10597995233,14cyclictest451rcuc/323:40:283
10597995233,14cyclictest451rcuc/323:40:283
10597995134,12cyclictest451rcuc/323:32:223
10597995037,8cyclictest451rcuc/322:32:143
1059799503,35cyclictest22804-21taskset22:00:083
10597994934,9cyclictest451rcuc/300:05:203
10597994934,10cyclictest451rcuc/321:54:173
10597994934,10cyclictest451rcuc/321:54:173
1059799493,37cyclictest7012-21taskset00:17:033
1059799493,37cyclictest7012-21taskset00:17:033
1059799492,33cyclictest15055-21chrt21:48:243
1059799492,32cyclictest19305-21taskset22:49:323
1059799492,32cyclictest19305-21taskset22:49:323
10597994735,8cyclictest451rcuc/320:28:103
1059799463,29cyclictest23680-21taskset22:55:363
10597994533,8cyclictest451rcuc/323:21:113
1059799452,31cyclictest30396-21chrt22:14:303
1059799452,31cyclictest30396-21chrt22:14:303
10597994431,9cyclictest451rcuc/323:47:133
105242449,20sleep30-21swapper/318:59:313
105242449,20sleep30-21swapper/318:59:313
1059799423,29cyclictest10795-21taskset00:24:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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