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2026-05-25 - 01:19
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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 rack0slot2.osadl.org (updated Mon May 25, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
397152227548,8sleep40-21swapper/419:04:564
3971979995755,2cyclictest36210-21kworker/u16:1+flush-8:021:57:356
396256025544,7sleep50-21swapper/519:02:325
3971979995351,2cyclictest36210-21kworker/u16:1+events_unbound22:02:476
3971979995250,2cyclictest336128-21kworker/u16:1+events_unbound23:32:536
3971979995149,2cyclictest4176831-21kworker/u16:3+events_unbound20:57:466
3971979995047,2cyclictest3971742-21kworker/u16:3+flush-8:019:42:466
3971979994947,2cyclictest167364-21kworker/u16:2+events_unbound22:27:426
3971979994947,2cyclictest167364-21kworker/u16:2+events_unbound22:27:426
3971983994742,4cyclictest265424-21latency_hist22:52:207
3971979994745,2cyclictest205199-21kworker/u16:4+flush-8:023:07:456
3971979994543,2cyclictest4033380-21kworker/u16:2+flush-8:021:12:496
3971979994543,2cyclictest167364-21kworker/u16:2+flush-8:022:17:416
3971976994542,2cyclictest3952563-21kworker/u16:0+events_unbound19:12:225
3971979994441,2cyclictest4063262-21kworker/u16:0+events_unbound21:22:516
3971979994436,8cyclictest190730-21kworker/u16:1+events_unbound22:25:146
3971979994436,8cyclictest190730-21kworker/u16:1+events_unbound22:25:146
3971979994341,2cyclictest226921-21kworker/u16:0+events_unbound22:42:476
3971979994341,2cyclictest205199-21kworker/u16:4+flush-8:022:32:486
3971979994240,2cyclictest301851-21kworker/u16:3+events_unbound23:17:486
3971979994139,2cyclictest265642-21kworker/u16:2+flush-8:022:52:486
3971976994136,4cyclictest36210-21kworker/u16:1+flush-8:021:32:215
39651672413,31sleep70-21swapper/719:02:427
3971979994038,2cyclictest336128-21kworker/u16:1+events_unbound23:31:216
3971979993937,2cyclictest421931-21kworker/u16:4+events_unbound00:23:496
3971979993836,2cyclictest36210-21kworker/u16:1+events_unbound21:44:076
3971979993836,2cyclictest36210-21kworker/u16:1+events_unbound21:44:076
3971979993835,2cyclictest3270085-21kworker/u16:6+flush-8:020:32:366
3971976993835,2cyclictest337980-21kworker/u16:2+flush-8:000:02:415
3971979993735,2cyclictest4033380-21kworker/u16:2+flush-8:021:12:136
3971979993735,2cyclictest205199-21kworker/u16:4+events_unbound23:14:546
3971979993634,2cyclictest421931-21kworker/u16:4+events_unbound00:05:506
3971979993634,2cyclictest337980-21kworker/u16:2+events_unbound23:49:496
3971979993533,2cyclictest60465-21kworker/u16:2+events_unbound21:52:496
3971979993533,2cyclictest421931-21kworker/u16:4+events_unbound00:13:576
3971979993533,2cyclictest337980-21kworker/u16:2+flush-8:023:58:376
3971979993533,2cyclictest337980-21kworker/u16:2+events_unbound23:38:416
3971979993533,2cyclictest251977-21kworker/u16:1+events_unbound22:58:156
3971979993432,2cyclictest72681-21kworker/u16:3+events_unbound22:16:386
3971979993432,2cyclictest480872-21kworker/u16:0+events_unbound00:35:016
3971979993432,2cyclictest480872-21kworker/u16:0+events_unbound00:28:256
3971979993432,2cyclictest480872-21kworker/u16:0+events_unbound00:28:256
3971979993432,2cyclictest444505-21kworker/u16:1+events_unbound00:20:016
3971979993432,2cyclictest4063262-21kworker/u16:0+events_unbound21:28:356
3971979993432,2cyclictest336128-21kworker/u16:1+flush-8:023:52:336
3971979993432,2cyclictest336128-21kworker/u16:1+events_unbound23:47:136
3971979993432,2cyclictest336128-21kworker/u16:1+events_unbound23:47:136
3971979993432,2cyclictest3270085-21kworker/u16:6+events_unbound20:22:406
3971979993432,2cyclictest251977-21kworker/u16:1+events_unbound22:48:066
3971983993327,5cyclictest181079-21latency_hist22:17:207
3971979993331,2cyclictest72681-21kworker/u16:3+events_unbound21:33:056
3971979993331,2cyclictest60465-21kworker/u16:2+events_unbound21:51:026
3971979993331,2cyclictest60465-21kworker/u16:2+events_unbound21:39:346
3971979993331,2cyclictest286332-21kworker/u16:0+events_unbound23:06:186
3971979993331,2cyclictest286332-21kworker/u16:0+events_unbound23:06:186
3971979993331,2cyclictest167364-21kworker/u16:2+flush-8:022:10:256
397198399320,30cyclictest124-21kswapd021:57:487
3971979993230,2cyclictest444505-21kworker/u16:1+events_unbound00:10:016
3971979993230,2cyclictest4063262-21kworker/u16:0+flush-8:021:17:436
3971979993129,2cyclictest337980-21kworker/u16:2+events_unbound23:22:416
397145523121,7sleep60-21swapper/619:04:026
41485512300,1chrt4148552-21latency_hist20:37:207
3971979993028,2cyclictest239028-21kworker/u16:2+events_unbound22:39:496
3971976993028,2cyclictest60465-21kworker/u16:2+flush-8:021:47:155
3971976993028,2cyclictest60465-21kworker/u16:2+flush-8:021:47:155
3971979992927,2cyclictest4063262-21kworker/u16:0+events_unbound19:54:236
3971979992926,2cyclictest4033380-21kworker/u16:2+events_unbound19:47:236
3971976992927,2cyclictest409611-21kworker/u16:0+flush-8:023:52:475
3971979992826,2cyclictest4033380-21kworker/u16:2+events_unbound20:27:416
3971979992825,2cyclictest4033380-21kworker/u16:2+flush-8:020:37:216
3971976992826,2cyclictest3971742-21kworker/u16:3+events_unbound19:22:345
3971983992723,3cyclictest124-21kswapd022:56:237
3971979992725,2cyclictest3971742-21kworker/u16:3+events_unbound19:40:376
3971979992725,2cyclictest3971742-21kworker/u16:3+events_unbound19:24:316
3971976992725,2cyclictest337980-21kworker/u16:2+events_unbound23:26:185
3971979992624,2cyclictest4176831-21kworker/u16:3+events_unbound20:54:376
3971976992624,2cyclictest337980-21kworker/u16:2+flush-8:023:57:555
3971976992622,4cyclictest3971742-21kworker/u16:3+flush-8:019:32:205
3971983992520,4cyclictest494316-21latency_hist00:27:197
3971979992523,2cyclictest4148773-21kworker/u16:1+events_unbound20:42:516
3971979992523,2cyclictest3962552-21kworker/u16:1+events_unbound19:08:386
3971976992523,2cyclictest4063262-21kworker/u16:0+flush-8:019:57:435
3971976992522,2cyclictest4063262-21kworker/u16:0+flush-8:021:17:375
3971979992422,2cyclictest3962552-21kworker/u16:1+events_unbound19:33:386
3971976992423,1cyclictest134233-21kworker/u16:0+events_unbound22:13:245
3971979992321,2cyclictest4063262-21kworker/u16:0+events_unbound21:02:386
3971979992321,2cyclictest4063262-21kworker/u16:0+events_unbound21:02:386
3971979992321,2cyclictest4033380-21kworker/u16:2+flush-8:020:09:256
3971979992220,2cyclictest3971742-21kworker/u16:3+events_unbound19:27:496
3971979992220,2cyclictest3971742-21kworker/u16:3+events_unbound19:14:226
3971983992116,4cyclictest635-21systemd-journal21:32:217
3971979992119,2cyclictest3971742-21kworker/u16:3+events_unbound20:01:516
3971976992119,2cyclictest337980-21kworker/u16:2+flush-8:023:27:385
3971976992118,2cyclictest4033380-21kworker/u16:2+flush-8:020:27:515
397198399200,18cyclictest0-21swapper/719:57:427
3971976992018,2cyclictest336128-21kworker/u16:1+flush-8:023:20:085
3971983991915,3cyclictest1234-21snmpd20:13:327
3971979991916,2cyclictest4033380-21kworker/u16:2+events_unbound20:47:296
3971983991814,3cyclictest124-21kswapd023:25:287
3971983991814,3cyclictest1234-21snmpd19:10:347
3971979991816,2cyclictest4033380-21kworker/u16:2+events_unbound20:16:386
3971979991816,2cyclictest3270085-21kworker/u16:6+events_unbound20:04:256
3971976991816,2cyclictest4063262-21kworker/u16:0+events_unbound20:12:445
3971976991815,2cyclictest4063262-21kworker/u16:0+flush-8:021:02:385
3971976991815,2cyclictest4063262-21kworker/u16:0+flush-8:021:02:385
397197499180,14cyclictest0-21swapper/422:08:554
3971983991713,3cyclictest217255-21awk22:32:207
3971983991713,3cyclictest217255-21awk22:32:207
397198399170,1cyclictest0-21swapper/719:37:437
3971976991715,2cyclictest444505-21kworker/u16:1+events_unbound00:07:345
3971976991715,2cyclictest3270085-21kworker/u16:6+events_unbound20:07:505
3971983991614,1cyclictest0-21swapper/722:07:457
3971983991612,3cyclictest1234-21snmpd23:20:197
397198399160,14cyclictest0-21swapper/719:27:437
3971974991614,2cyclictest0-21swapper/421:25:244
3971974991613,3cyclictest0-21swapper/422:32:064
3971974991613,3cyclictest0-21swapper/422:32:064
397197499160,15cyclictest4073014-21irqcore19:57:354
3971983991512,2cyclictest0-21swapper/722:22:207
3971983991512,2cyclictest0-21swapper/722:22:207
397198399150,13cyclictest1234-21snmpd00:33:457
397198399150,13cyclictest120864-21latency_hist21:52:207
3971979991513,2cyclictest3971742-21kworker/u16:3+events_unbound19:21:226
397197499154,10cyclictest253794-21chrt22:47:244
397197499150,1cyclictest0-21swapper/420:39:414
397197499150,1cyclictest0-21swapper/400:20:434
397198399149,4cyclictest146058-21tune2fs22:02:357
397198399149,3cyclictest6514-21gmain19:32:457
3971983991413,0cyclictest0-21swapper/720:07:357
3971983991411,2cyclictest1234-21snmpd00:27:577
3971983991411,2cyclictest1234-21snmpd00:27:577
3971983991411,2cyclictest0-21swapper/721:07:517
3971983991411,2cyclictest0-21swapper/720:42:337
397198399140,12cyclictest218522-21cat22:32:367
3971976991413,1cyclictest0-21swapper/522:44:385
3971976991413,1cyclictest0-21swapper/522:20:315
397197699140,1cyclictest0-21swapper/522:06:195
397197699140,1cyclictest0-21swapper/521:09:255
397197699140,14cyclictest0-21swapper/523:16:015
397197699140,14cyclictest0-21swapper/523:10:205
397197699140,14cyclictest0-21swapper/522:34:525
397197699140,13cyclictest0-21swapper/520:32:225
3971974991413,1cyclictest0-21swapper/422:13:204
3971974991413,1cyclictest0-21swapper/421:55:124
3971974991413,1cyclictest0-21swapper/400:04:104
397197499140,1cyclictest0-21swapper/423:05:224
397197499140,1cyclictest0-21swapper/423:05:224
397197499140,14cyclictest0-21swapper/421:33:174
397197499140,14cyclictest0-21swapper/421:29:214
397197499140,0cyclictest0-21swapper/419:46:434
397198399139,3cyclictest1234-21snmpd23:51:117
397198399139,3cyclictest1234-21snmpd22:41:337
397198399139,3cyclictest1234-21snmpd21:25:307
397198399139,3cyclictest1234-21snmpd21:01:187
397198399138,4cyclictest447268-21cat00:07:357
397198399136,6cyclictest6895-21gmain22:42:257
3971983991311,1cyclictest70680-21ssh21:28:347
3971983991311,1cyclictest0-21swapper/723:12:467
3971983991310,2cyclictest0-21swapper/723:32:217
3971983991310,2cyclictest0-21swapper/720:52:217
3971983991310,2cyclictest0-21swapper/700:07:207
397198399130,11cyclictest2358-21crond19:22:207
3971979991311,2cyclictest4033380-21kworker/u16:2+events_unbound20:18:436
3971976991312,1cyclictest0-21swapper/520:37:345
3971976991312,1cyclictest0-21swapper/519:47:355
3971976991312,1cyclictest0-21swapper/500:34:415
3971976991312,1cyclictest0-21swapper/500:22:425
3971976991311,2cyclictest60465-21kworker/u16:2+flush-8:021:27:155
397197699130,1cyclictest0-21swapper/521:34:105
397197699130,0cyclictest0-21swapper/522:11:035
3971974991312,1cyclictest0-21swapper/423:58:584
3971974991312,1cyclictest0-21swapper/423:32:294
3971974991312,1cyclictest0-21swapper/423:16:244
3971974991312,1cyclictest0-21swapper/423:00:284
3971974991312,1cyclictest0-21swapper/421:09:294
3971974991312,1cyclictest0-21swapper/400:31:554
3971974991312,1cyclictest0-21swapper/400:31:554
3971974991312,1cyclictest0-21swapper/400:26:144
3971974991311,2cyclictest0-21swapper/421:46:224
3971974991311,2cyclictest0-21swapper/421:46:224
397197499130,13cyclictest0-21swapper/423:43:214
397197499130,13cyclictest0-21swapper/423:43:214
397198399129,2cyclictest1234-21snmpd23:10:047
397198399129,2cyclictest1234-21snmpd21:03:517
397198399129,2cyclictest1234-21snmpd21:03:517
397198399128,3cyclictest1234-21snmpd23:01:157
397198399128,3cyclictest1234-21snmpd21:53:257
397198399128,3cyclictest1234-21snmpd20:18:417
397198399128,3cyclictest1234-21snmpd19:17:557
397198399127,4cyclictest411043-21tune2fs23:52:347
397198399127,4cyclictest350908-21cat23:27:367
397198399125,6cyclictest6101-21gmain19:47:377
3971983991210,1cyclictest0-21swapper/722:17:477
397198399120,10cyclictest387045-21cat23:42:347
397198399120,10cyclictest387045-21cat23:42:347
3971976991211,1cyclictest0-21swapper/523:38:245
3971976991211,1cyclictest0-21swapper/523:04:215
3971976991211,1cyclictest0-21swapper/523:04:215
3971976991211,1cyclictest0-21swapper/522:01:365
397197699120,12cyclictest0-21swapper/500:16:525
397197499129,3cyclictest0-21swapper/422:55:454
397197499124,7cyclictest4061907-21chrt19:49:424
3971974991211,1cyclictest0-21swapper/423:37:504
3971974991211,1cyclictest0-21swapper/423:27:174
3971974991211,1cyclictest0-21swapper/422:27:124
3971974991211,1cyclictest0-21swapper/422:27:124
3971974991211,1cyclictest0-21swapper/421:59:374
3971974991211,1cyclictest0-21swapper/420:02:574
3971974991210,2cyclictest0-21swapper/423:48:434
397197499120,6cyclictest0-21swapper/422:02:464
397197499120,4cyclictest4160242-21taskset20:42:384
397197499120,4cyclictest4100197-21chrt20:07:534
397197499120,4cyclictest4042644-21chrt19:38:444
397197499120,1cyclictest0-21swapper/420:19:114
397197499120,12cyclictest0-21swapper/419:16:074
1288702120,0sleep50-21swapper/521:52:435
397198399118,2cyclictest1234-21snmpd23:07:047
397198399118,2cyclictest1234-21snmpd23:07:047
397198399118,2cyclictest1234-21snmpd20:37:517
397198399118,2cyclictest1234-21snmpd19:44:587
397198399118,2cyclictest1234-21snmpd00:19:547
397198399118,2cyclictest105761-21ntpq21:42:467
397198399118,2cyclictest105761-21ntpq21:42:467
397198399118,2cyclictest0-21swapper/721:12:537
397198399118,2cyclictest0-21swapper/720:52:457
397198399117,3cyclictest1234-21snmpd20:23:567
397198399116,4cyclictest6382-21gvfs-afc-volume19:52:397
397198399116,4cyclictest375022-21cat23:37:357
397198399115,5cyclictest6382-21gvfs-afc-volume00:15:477
397198399114,6cyclictest6382-21gvfs-afc-volume21:19:237
397197699119,2cyclictest3270085-21kworker/u16:6+events_unbound19:37:355
3971976991110,1cyclictest0-21swapper/523:32:435
3971976991110,1cyclictest0-21swapper/522:59:185
3971976991110,1cyclictest0-21swapper/522:29:495
3971976991110,1cyclictest0-21swapper/522:29:495
3971976991110,1cyclictest0-21swapper/522:25:055
3971976991110,1cyclictest0-21swapper/522:25:055
3971976991110,1cyclictest0-21swapper/521:47:245
3971976991110,1cyclictest0-21swapper/520:42:555
397197699110,1cyclictest0-21swapper/520:59:575
397197699110,1cyclictest0-21swapper/520:21:575
397197699110,1cyclictest0-21swapper/519:53:445
397197699110,11cyclictest0-21swapper/519:22:125
397197499114,6cyclictest3973432-21kthreadcore19:07:384
397197499113,7cyclictest4006556-21cut19:22:384
397197499112,8cyclictest4103207-21cat20:12:384
397197499112,8cyclictest4070114-21grep19:52:424
3971974991110,1cyclictest0-21swapper/422:45:584
3971974991110,1cyclictest0-21swapper/421:41:484
3971974991110,1cyclictest0-21swapper/419:28:254
397197499110,4cyclictest4186441-21chrt20:53:524
397197499110,4cyclictest4148124-21chrt20:33:494
397197499110,4cyclictest4032307-21chrt19:32:434
397197499110,4cyclictest4003601-21open_files19:17:454
397197499110,4cyclictest312630-21taskset23:10:404
397197499110,4cyclictest228801-21chrt22:36:264
397197499110,4cyclictest12249-21chrt21:04:104
397197499110,4cyclictest12249-21chrt21:04:104
397197499110,4cyclictest118571-21taskset21:48:014
397197499110,3cyclictest4176807-21taskset20:47:594
397197499110,11cyclictest0-21swapper/421:00:494
397197499110,11cyclictest0-21swapper/420:29:264
397197499110,11cyclictest0-21swapper/420:24:234
397198399107,2cyclictest0-21swapper/723:59:297
397198399104,4cyclictest85282-21grep21:37:317
397198399104,4cyclictest3984154-21grep19:12:247
397197699109,1cyclictest0-21swapper/521:38:165
397197699109,1cyclictest0-21swapper/521:13:215
397197699109,1cyclictest0-21swapper/520:48:265
397197699109,1cyclictest0-21swapper/500:28:325
397197699109,1cyclictest0-21swapper/500:28:325
397197499109,1cyclictest0-21swapper/423:53:464
397197499109,1cyclictest0-21swapper/422:17:454
397197499109,1cyclictest0-21swapper/421:21:184
397197499108,2cyclictest0-21swapper/423:21:554
397197499100,4cyclictest517522-21taskset00:35:364
397197499100,4cyclictest467889-21taskset00:13:084
397197499100,3cyclictest358618-21chrt23:27:474
397197499100,3cyclictest229675-21taskset22:37:224
39719839995,3cyclictest1234-21snmpd20:05:177
39719839994,4cyclictest4130386-21sed20:27:357
39719769998,1cyclictest0-21swapper/523:43:465
39719769998,1cyclictest0-21swapper/523:43:465
39719769998,1cyclictest0-21swapper/522:49:225
39719769998,1cyclictest0-21swapper/522:39:355
39719769998,1cyclictest0-21swapper/519:35:275
39719769998,1cyclictest0-21swapper/519:09:165
39719769997,2cyclictest301851-21kworker/u16:3+flush-8:023:47:475
39719749991,1cyclictest0-21swapper/421:13:004
39719749990,4cyclictest456047-21taskset00:08:354
39719769987,1cyclictest0-21swapper/522:54:155
39719769987,1cyclictest0-21swapper/520:27:195
39719769976,1cyclictest0-21swapper/520:53:585
39719769973,3cyclictest4083371-21kthreadcore20:02:395
39719769973,3cyclictest4044043-21smartctl19:42:345
39719769964,2cyclictest444505-21kworker/u16:1+flush-8:000:17:415
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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