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2026-07-31 - 05:42
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Fri Jul 31, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32576822650,1sleep50-21swapper/522:54:155
275738225646,7sleep50-21swapper/519:04:355
275738125646,7sleep40-21swapper/419:04:344
275757625520,30sleep70-21swapper/719:07:177
2757995994037,2cyclictest125-21kswapd023:09:077
2757991993835,2cyclictest3077645-21kworker/u16:1+events_unbound21:53:546
2757991993835,2cyclictest2927055-21kworker/u16:1+events_unbound20:48:556
2757981993734,2cyclictest3224024-21kworker/u16:3+flush-8:022:58:534
2757991993634,2cyclictest3186821-21kworker/u16:0+events_unbound23:02:556
2757991993634,2cyclictest2994823-21kworker/u16:4+events_unbound22:21:356
2757995993534,0cyclictest0-21swapper/722:34:397
2757991993533,2cyclictest3308551-21kworker/u16:2+events_unbound23:48:066
2757995993433,0cyclictest0-21swapper/722:43:547
2757995993433,0cyclictest0-21swapper/700:02:477
2757991993432,2cyclictest3308551-21kworker/u16:2+events_unbound00:06:386
2757991993432,2cyclictest3006821-21kworker/u16:0+events_unbound22:14:216
2757991993432,2cyclictest3006821-21kworker/u16:0+events_unbound21:42:126
2757981993432,2cyclictest3308551-21kworker/u16:2+events_unbound23:41:024
2757981993432,2cyclictest3237061-21kworker/u16:1+flush-8:023:23:534
2757981993432,2cyclictest3006821-21kworker/u16:0+flush-8:022:14:194
2757981993432,2cyclictest2994823-21kworker/u16:4+flush-8:021:33:534
275751723424,7sleep60-21swapper/619:06:286
2757991993331,2cyclictest3479457-21kworker/u16:3+flush-8:000:30:146
2757991993331,2cyclictest3479457-21kworker/u16:3+events_unbound00:35:436
2757991993331,2cyclictest3441128-21kworker/u16:3+events_unbound00:11:526
2757991993331,2cyclictest3237061-21kworker/u16:1+events_unbound23:21:156
2757991993331,2cyclictest2956233-21kworker/u16:0+flush-8:021:04:206
2757981993331,2cyclictest3224024-21kworker/u16:3+flush-8:023:00:034
2757995993230,1cyclictest0-21swapper/700:13:427
2757991993230,2cyclictest3380264-21kworker/u16:1+events_unbound00:00:546
2757991993230,2cyclictest3308551-21kworker/u16:2+events_unbound23:31:526
2757991993230,2cyclictest3186821-21kworker/u16:0+events_unbound22:32:086
2757981993230,2cyclictest3006821-21kworker/u16:0+flush-8:021:24:294
2757995993130,0cyclictest0-21swapper/721:41:597
2757995993127,2cyclictest3309561-21sh23:18:167
2757995993127,2cyclictest3309561-21sh23:18:167
2757991993129,2cyclictest3380264-21kworker/u16:1+events_unbound00:20:506
2757991993129,2cyclictest3186821-21kworker/u16:0+flush-8:022:45:276
2757991993129,2cyclictest3006821-21kworker/u16:0+flush-8:021:51:116
2757991993128,2cyclictest2858975-21kworker/u16:3+flush-8:020:58:546
2757987993129,2cyclictest2956233-21kworker/u16:0+events_unbound20:54:085
2757981993129,2cyclictest3416385-21kworker/u16:4+flush-8:000:27:364
2757981993129,2cyclictest3237061-21kworker/u16:1+flush-8:022:53:034
2757995993029,0cyclictest0-21swapper/722:55:457
2757995993029,0cyclictest0-21swapper/722:07:027
2757991993028,2cyclictest3237061-21kworker/u16:1+events_unbound22:58:496
2757991993028,2cyclictest3186821-21kworker/u16:0+flush-8:022:36:356
2757981993028,2cyclictest3380264-21kworker/u16:1+events_unbound23:52:044
2757981993028,2cyclictest3152950-21kworker/u16:1+events_unbound22:19:034
2757995992927,1cyclictest0-21swapper/721:23:427
2757991992927,2cyclictest3237061-21kworker/u16:1+events_unbound23:12:476
2757991992927,2cyclictest3211561-21kworker/u16:2+events_unbound22:40:316
2757991992927,2cyclictest2858975-21kworker/u16:3+events_unbound21:30:356
2757991992927,2cyclictest2858975-21kworker/u16:3+events_unbound20:38:166
2757981992927,2cyclictest3432672-21kworker/u16:0+events_unbound00:09:224
2757981992927,2cyclictest3308551-21kworker/u16:2+flush-8:000:18:234
2757981992927,2cyclictest3186821-21kworker/u16:0+flush-8:022:44:554
31143162280,1chrt3114314-21ssh21:55:277
2757995992827,0cyclictest0-21swapper/722:28:187
2757995992827,0cyclictest0-21swapper/720:20:087
2757995992827,0cyclictest0-21swapper/700:31:077
2757995992826,1cyclictest0-21swapper/722:02:597
2757991992826,2cyclictest3380264-21kworker/u16:1+events_unbound00:26:126
2757991992826,2cyclictest2994823-21kworker/u16:4+events_unbound21:10:026
2757991992825,2cyclictest2819793-21kworker/u16:2+events_unbound19:54:266
2757987992826,2cyclictest3224024-21kworker/u16:3+events_unbound22:59:265
2757987992826,2cyclictest2829712-21kworker/u16:1+events_unbound19:49:075
2757987992826,2cyclictest2829712-21kworker/u16:1+events_unbound19:49:075
2757991992725,2cyclictest3308551-21kworker/u16:2+events_unbound23:50:176
2757991992725,2cyclictest3006821-21kworker/u16:0+events_unbound22:11:066
2757991992725,2cyclictest2858975-21kworker/u16:3+flush-8:021:36:466
2757991992725,2cyclictest2858975-21kworker/u16:3+events_unbound21:59:526
2757991992725,2cyclictest2858975-21kworker/u16:3+events_unbound21:15:496
2757991992725,2cyclictest2858975-21kworker/u16:3+events_unbound21:15:496
2757991992725,2cyclictest2780797-21kworker/u16:4+flush-8:020:27:086
2757981992725,2cyclictest3380264-21kworker/u16:1+flush-8:023:57:444
2757981992725,2cyclictest3308551-21kworker/u16:2+events_unbound00:06:244
2757981992725,2cyclictest2994823-21kworker/u16:4+flush-8:022:32:044
2757995992625,0cyclictest0-21swapper/721:47:277
2757995992625,0cyclictest0-21swapper/700:22:147
2757995992624,1cyclictest2995141-21diskmemload21:50:097
2757995992624,1cyclictest2995141-21diskmemload00:18:377
275799599260,24cyclictest125-21kswapd022:33:537
2757991992624,2cyclictest3343964-21kworker/u16:3+events_unbound23:38:146
2757991992624,2cyclictest2819793-21kworker/u16:2+events_unbound19:42:196
2757991992624,2cyclictest2780797-21kworker/u16:4+events_unbound20:13:546
2757981992624,2cyclictest3380264-21kworker/u16:1+events_unbound00:02:044
2757981992624,2cyclictest3343964-21kworker/u16:3+flush-8:023:36:034
2757981992624,2cyclictest3224024-21kworker/u16:3+flush-8:023:09:114
2757981992624,2cyclictest3224024-21kworker/u16:3+flush-8:023:04:234
2757981992623,2cyclictest2956233-21kworker/u16:0+flush-8:020:53:564
2757995992524,0cyclictest0-21swapper/721:06:077
2757995992524,0cyclictest0-21swapper/721:02:407
2757995992524,0cyclictest0-21swapper/719:15:017
2757995992521,2cyclictest3430791-21ssh00:08:417
275799599250,24cyclictest648-21systemd-journal23:28:547
2757991992523,2cyclictest3380264-21kworker/u16:1+events_unbound23:57:566
2757991992523,2cyclictest3308551-21kworker/u16:2+flush-8:023:27:016
2757991992523,2cyclictest3224024-21kworker/u16:3+events_unbound23:15:516
2757991992523,2cyclictest3224024-21kworker/u16:3+events_unbound23:15:516
2757991992523,2cyclictest3139250-21kworker/u16:2+flush-8:022:08:106
2757991992523,2cyclictest2994823-21kworker/u16:4+flush-8:022:26:466
2757991992523,2cyclictest2858975-21kworker/u16:3+events_unbound21:24:026
2757991992523,2cyclictest2790726-21kworker/u16:0+events_unbound19:26:276
2757981992523,2cyclictest3152950-21kworker/u16:1+flush-8:022:28:084
2757981992523,2cyclictest3006821-21kworker/u16:0+flush-8:021:34:474
2757981992523,2cyclictest2994823-21kworker/u16:4+events_unbound21:15:044
2757981992523,2cyclictest2994823-21kworker/u16:4+events_unbound21:15:044
2757981992523,2cyclictest2994823-21kworker/u16:4+events_unbound21:12:034
2757981992523,2cyclictest2858975-21kworker/u16:3+events_unbound22:00:034
2757995992423,0cyclictest0-21swapper/720:05:117
2757995992423,0cyclictest0-21swapper/720:02:117
2757995992423,0cyclictest0-21swapper/719:41:087
2757995992422,1cyclictest3283960-21ssh23:05:417
2757995992422,1cyclictest2995141-21diskmemload00:25:197
2757995992422,1cyclictest2975723-21awk20:58:547
2757995992420,3cyclictest3162303-21ssh22:14:327
275799599240,22cyclictest3369494-21sh23:42:177
2757991992422,2cyclictest3308551-21kworker/u16:2+events_unbound00:17:486
2757991992422,2cyclictest3006821-21kworker/u16:0+events_unbound21:21:576
2757991992422,2cyclictest2994823-21kworker/u16:4+events_unbound21:45:576
2757991992422,2cyclictest2956233-21kworker/u16:0+flush-8:020:58:326
2757991992422,2cyclictest2858975-21kworker/u16:3+flush-8:020:07:516
2757987992422,2cyclictest3308551-21kworker/u16:2+events_unbound23:55:435
2757981992422,2cyclictest2884700-21kworker/u16:0+flush-8:020:09:194
2757995992322,0cyclictest0-21swapper/723:26:597
2757995992322,0cyclictest0-21swapper/722:10:257
2757995992322,0cyclictest0-21swapper/719:45:557
2757995992321,1cyclictest0-21swapper/721:29:547
2757995992320,2cyclictest3223984-21ssh22:41:427
2757991992321,2cyclictest3237061-21kworker/u16:1+flush-8:022:49:336
2757991992321,2cyclictest2927055-21kworker/u16:1+flush-8:020:45:396
2757991992321,2cyclictest2858975-21kworker/u16:3+flush-8:020:19:226
2757991992321,2cyclictest2819793-21kworker/u16:2+flush-8:019:47:336
2757991992321,2cyclictest2729040-21kworker/u16:2+flush-8:019:16:096
2757987992321,2cyclictest2994823-21kworker/u16:4+events_unbound21:14:275
2757987992321,2cyclictest2994823-21kworker/u16:4+events_unbound21:14:275
2757987992321,2cyclictest2790726-21kworker/u16:0+events_unbound19:29:295
2757987992320,2cyclictest3380264-21kworker/u16:1+events_unbound23:48:555
2757981992321,2cyclictest3237061-21kworker/u16:1+flush-8:023:25:294
2757981992321,2cyclictest3077645-21kworker/u16:1+flush-8:021:40:314
2757995992221,0cyclictest0-21swapper/723:47:157
2757995992212,1cyclictest0-21swapper/719:34:177
2757991992220,2cyclictest3343964-21kworker/u16:3+events_unbound23:42:106
2757991992220,2cyclictest3224024-21kworker/u16:3+events_unbound23:05:266
2757987992220,2cyclictest3308551-21kworker/u16:2+events_unbound00:36:165
2757987992220,2cyclictest3308551-21kworker/u16:2+events_unbound00:10:405
2757987992220,2cyclictest3006821-21kworker/u16:0+events_unbound21:36:075
2757987992220,2cyclictest2994823-21kworker/u16:4+events_unbound22:33:195
2757987992220,2cyclictest2858975-21kworker/u16:3+events_unbound21:31:165
2757987992219,2cyclictest2927055-21kworker/u16:1+events_unbound20:33:565
2757981992220,2cyclictest3380264-21kworker/u16:1+flush-8:023:46:074
2757981992220,2cyclictest3186821-21kworker/u16:0+events_unbound22:40:074
2757981992220,2cyclictest3077645-21kworker/u16:1+events_unbound21:49:184
2757995992120,0cyclictest0-21swapper/723:56:067
2757995992120,0cyclictest0-21swapper/720:28:407
2757995992120,0cyclictest0-21swapper/719:31:207
2757995992120,0cyclictest0-21swapper/719:23:597
2757995992119,1cyclictest3501336-21ssh00:34:337
2757995992118,2cyclictest3065927-21ssh21:35:297
2757991992119,2cyclictest2858975-21kworker/u16:3+events_unbound20:15:366
2757991992119,2cyclictest2829712-21kworker/u16:1+events_unbound19:58:576
2757991992118,2cyclictest2858975-21kworker/u16:3+flush-8:020:29:016
2757987992119,2cyclictest3237061-21kworker/u16:1+events_unbound23:26:035
2757987992119,2cyclictest3186821-21kworker/u16:0+events_unbound23:09:515
2757987992119,2cyclictest3006821-21kworker/u16:0+events_unbound22:11:595
2757987992119,2cyclictest3006821-21kworker/u16:0+events_unbound21:25:045
2757987992119,2cyclictest2884700-21kworker/u16:0+events_unbound20:19:155
2757981992119,2cyclictest3465050-21kworker/u16:0+flush-8:000:21:074
2757981992119,2cyclictest3224024-21kworker/u16:3+flush-8:023:15:244
2757981992119,2cyclictest3224024-21kworker/u16:3+flush-8:023:15:244
2757981992119,2cyclictest3186821-21kworker/u16:0+events_unbound23:28:554
2757981992119,2cyclictest3152950-21kworker/u16:1+events_unbound22:35:124
2757981992119,2cyclictest3006821-21kworker/u16:0+events_unbound21:19:444
2757981992119,2cyclictest2994823-21kworker/u16:4+flush-8:021:48:324
2757981992119,2cyclictest2780797-21kworker/u16:4+events_unbound19:39:074
2757981992119,2cyclictest2757380-21kworker/u16:0+flush-8:019:14:044
2757995992019,0cyclictest0-21swapper/722:49:447
2757995992019,0cyclictest0-21swapper/722:20:377
2757995992019,0cyclictest0-21swapper/720:31:247
2757995992019,0cyclictest0-21swapper/720:10:557
2757995992018,1cyclictest2995141-21diskmemload23:35:497
2757987992018,2cyclictest3416385-21kworker/u16:4+events_unbound00:08:475
2757987992018,2cyclictest3380264-21kworker/u16:1+events_unbound00:01:545
2757987992018,2cyclictest3186821-21kworker/u16:0+events_unbound22:48:355
2757987992018,2cyclictest3006821-21kworker/u16:0+events_unbound22:18:295
2757987992017,2cyclictest3237061-21kworker/u16:1+events_unbound23:18:555
2757987992017,2cyclictest3211561-21kworker/u16:2+events_unbound22:48:555
2757987992017,2cyclictest2790726-21kworker/u16:0+events_unbound19:43:565
2757981992018,2cyclictest3006821-21kworker/u16:0+flush-8:022:05:474
2757981992017,2cyclictest2829712-21kworker/u16:1+flush-8:020:04:194
2757995991918,0cyclictest0-21swapper/723:21:087
2757995991918,0cyclictest0-21swapper/721:16:347
2757995991918,0cyclictest0-21swapper/721:16:347
2757995991918,0cyclictest0-21swapper/719:56:197
2757995991917,1cyclictest2995141-21diskmemload23:49:587
2757995991915,3cyclictest1302-21snmpd21:25:377
275799599190,17cyclictest2965973-21latency_hist20:53:547
2757991991917,2cyclictest2829712-21kworker/u16:1+events_unbound19:50:296
2757991991917,2cyclictest2829712-21kworker/u16:1+events_unbound19:50:296
2757991991917,2cyclictest2729040-21kworker/u16:2+events_unbound19:20:086
2757991991917,2cyclictest2718870-21kworker/u16:1+flush-8:019:35:156
2757987991917,2cyclictest3224024-21kworker/u16:3+events_unbound23:08:475
2757987991917,2cyclictest3211561-21kworker/u16:2+events_unbound22:42:475
2757987991917,2cyclictest2994823-21kworker/u16:4+events_unbound21:11:285
2757981991917,2cyclictest3380264-21kworker/u16:1+flush-8:000:31:524
2757981991917,2cyclictest2927055-21kworker/u16:1+events_unbound20:49:074
2757995991817,0cyclictest0-21swapper/721:10:337
2757995991817,0cyclictest0-21swapper/720:44:517
2757991991816,2cyclictest2757380-21kworker/u16:0+events_unbound19:11:576
2757987991816,2cyclictest3380264-21kworker/u16:1+events_unbound00:19:475
2757987991816,2cyclictest3139250-21kworker/u16:2+events_unbound22:23:035
2757987991816,2cyclictest2858975-21kworker/u16:3+events_unbound22:00:015
2757987991816,2cyclictest2858975-21kworker/u16:3+events_unbound20:07:045
2757987991816,2cyclictest2729040-21kworker/u16:2+events_unbound19:11:205
275798799180,3cyclictest0-21swapper/519:56:335
2757981991816,2cyclictest3479457-21kworker/u16:3+flush-8:000:37:404
2757981991816,2cyclictest3077645-21kworker/u16:1+flush-8:021:54:514
2757981991815,2cyclictest2819793-21kworker/u16:2+flush-8:019:54:044
2757995991714,1cyclictest2946590-21awk20:43:537
2757987991715,2cyclictest3380264-21kworker/u16:1+events_unbound00:17:195
2757987991715,2cyclictest3211561-21kworker/u16:2+events_unbound22:36:325
2757987991715,2cyclictest3186821-21kworker/u16:0+events_unbound23:45:085
2757987991715,2cyclictest2858975-21kworker/u16:3+events_unbound22:06:155
2757987991715,2cyclictest2858975-21kworker/u16:3+events_unbound21:05:205
2757987991715,2cyclictest2858975-21kworker/u16:3+events_unbound20:27:165
2757981991715,2cyclictest2858975-21kworker/u16:3+events_unbound20:19:094
2757995991615,0cyclictest0-21swapper/720:15:527
2757995991615,0cyclictest0-21swapper/719:10:207
2757991991614,2cyclictest2858975-21kworker/u16:3+flush-8:020:39:256
2757991991614,2cyclictest2790726-21kworker/u16:0+events_unbound19:33:006
2757987991614,2cyclictest3237061-21kworker/u16:1+events_unbound23:15:125
2757987991614,2cyclictest3237061-21kworker/u16:1+events_unbound23:15:125
2757987991614,2cyclictest3186821-21kworker/u16:0+events_unbound23:39:475
2757987991614,2cyclictest2994823-21kworker/u16:4+events_unbound21:23:315
2757987991614,2cyclictest2884700-21kworker/u16:0+flush-8:020:32:515
2757987991614,2cyclictest2829712-21kworker/u16:1+events_unbound20:02:075
2757987991614,2cyclictest2718870-21kworker/u16:1+events_unbound19:34:005
2757981991614,2cyclictest2994823-21kworker/u16:4+events_unbound22:09:034
2757981991614,2cyclictest2858975-21kworker/u16:3+flush-8:020:14:154
2757981991614,2cyclictest2829712-21kworker/u16:1+flush-8:019:48:484
2757987991513,2cyclictest2780797-21kworker/u16:4+events_unbound20:18:495
2757987991513,2cyclictest2729040-21kworker/u16:2+events_unbound19:21:405
2757981991513,2cyclictest2790726-21kworker/u16:0+events_unbound19:24:084
2757981991512,2cyclictest2790726-21kworker/u16:0+flush-8:019:28:574
2757995991413,0cyclictest0-21swapper/722:59:587
2757995991413,0cyclictest0-21swapper/719:53:137
2757995991413,0cyclictest0-21swapper/719:53:137
2757987991413,1cyclictest3113137-21ntp_states21:54:195
2757987991413,1cyclictest0-21swapper/500:24:485
2757987991412,2cyclictest3077645-21kworker/u16:1+events_unbound21:53:155
2757987991412,2cyclictest2956233-21kworker/u16:0+events_unbound20:48:535
2757987991412,2cyclictest2858975-21kworker/u16:3+events_unbound20:50:135
2757987991412,2cyclictest2780797-21kworker/u16:4+flush-8:019:42:365
2757987991412,2cyclictest2729040-21kworker/u16:2+events_unbound19:15:195
275798799140,14cyclictest0-21swapper/523:34:215
2757981991412,2cyclictest2884700-21kworker/u16:0+flush-8:020:24:104
2757981991412,2cyclictest2858975-21kworker/u16:3+flush-8:020:39:094
2757981991411,2cyclictest2780797-21kworker/u16:4+events_unbound19:19:114
275798199140,14cyclictest0-21swapper/421:04:094
2757987991311,2cyclictest3077645-21kworker/u16:1+events_unbound21:41:575
2757987991311,2cyclictest2780797-21kworker/u16:4+events_unbound19:26:175
2757987991311,1cyclictest3178015-21iostat_ios22:24:095
275798799130,13cyclictest0-21swapper/500:32:225
2757981991310,2cyclictest2819793-21kworker/u16:2+flush-8:019:49:104
2757981991310,2cyclictest2819793-21kworker/u16:2+flush-8:019:49:104
2757995991212,0cyclictest0-21swapper/720:37:357
2757987991211,1cyclictest2879346-21sh20:09:065
2757987991211,1cyclictest0-21swapper/521:02:315
2757987991210,2cyclictest2927055-21kworker/u16:1+events_unbound20:43:135
275798199120,1cyclictest0-21swapper/420:37:594
275798199120,12cyclictest0-21swapper/419:11:264
2757995991111,0cyclictest0-21swapper/719:20:127
275798799119,1cyclictest2994823-21kworker/u16:4-xprtiod21:44:085
275798799115,2cyclictest76-21ksoftirqd/523:29:095
275798199119,2cyclictest2790726-21kworker/u16:0+flush-8:019:59:104
2757981991110,1cyclictest0-21swapper/420:31:504
275798199110,11cyclictest0-21swapper/420:48:144
275798199110,0cyclictest0-21swapper/421:02:064
275798199110,0cyclictest0-21swapper/419:38:234
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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