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2026-05-21 - 01:26
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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 Thu May 21, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290358825545,7sleep40-21swapper/419:07:104
290334324837,8sleep50-21swapper/519:03:425
290392399430,41cyclictest635-21systemd-journal21:27:367
290392399420,40cyclictest635-21systemd-journal19:12:367
2903918994238,3cyclictest3271601-21kworker/u16:4+flush-8:022:13:026
29034232415,31sleep70-21swapper/719:04:487
2903918993937,2cyclictest3138569-21kworker/u16:2+events_unbound21:20:476
2903918993937,2cyclictest2955773-21kworker/u16:1+events_unbound19:57:326
290392399360,34cyclictest3319635-21latency_hist22:22:367
2903918993634,2cyclictest3353046-21kworker/u16:1+events_unbound23:10:356
2903918993633,3cyclictest3138569-21kworker/u16:2+events_unbound21:14:476
2903923993529,5cyclictest3525289-21latency_hist23:47:357
2903918993533,2cyclictest3622004-21kworker/u16:3+events_unbound00:36:116
2903918993533,2cyclictest3500229-21kworker/u16:0+events_unbound00:11:476
2903918993533,2cyclictest3172112-21kworker/u16:0+events_unbound21:52:196
2903918993533,2cyclictest3172112-21kworker/u16:0+events_unbound21:52:196
2903918993533,2cyclictest3118815-21kworker/u16:1+events_unbound21:09:116
2903918993533,2cyclictest3118815-21kworker/u16:1+events_unbound21:09:116
2903918993532,2cyclictest3085307-21kworker/u16:0+events_unbound20:43:026
2903918993529,2cyclictest3353046-21kworker/u16:1+events_unbound22:52:286
2903923993429,4cyclictest3070893-21latency_hist20:32:367
2903918993432,2cyclictest3513147-21kworker/u16:2+events_unbound23:50:476
2903918993432,2cyclictest3513147-21kworker/u16:2+events_unbound00:23:276
2903913993432,2cyclictest3500229-21kworker/u16:0+flush-8:023:37:505
2903918993331,2cyclictest3513147-21kworker/u16:2+events_unbound23:47:316
2903918993331,2cyclictest3331985-21kworker/u16:3+events_unbound23:03:356
2903918993331,2cyclictest3051757-21kworker/u16:3+events_unbound20:47:556
2903918993230,2cyclictest3486546-21kworker/u16:1+events_unbound23:34:276
2903918993230,2cyclictest3172112-21kworker/u16:0+events_unbound22:02:366
2903918993229,2cyclictest3051757-21kworker/u16:3+events_unbound22:02:406
2903908993229,2cyclictest3353046-21kworker/u16:1+events_unbound22:47:514
2903918993129,2cyclictest3172112-21kworker/u16:0+events_unbound21:25:366
2903918993129,2cyclictest2955773-21kworker/u16:1+events_unbound19:42:316
2903918993129,2cyclictest2955773-21kworker/u16:1+events_unbound19:42:316
2903913993129,2cyclictest3089164-21kworker/u16:4+events_unbound20:58:055
2903918993028,2cyclictest3462507-21kworker/u16:4+flush-8:023:53:356
2903918993028,2cyclictest3462507-21kworker/u16:4+flush-8:023:53:356
2903918993028,2cyclictest3331985-21kworker/u16:3+events_unbound22:45:546
2903913993028,2cyclictest3462507-21kworker/u16:4+events_unbound00:12:505
2903918992927,2cyclictest3595614-21kworker/u16:1+events_unbound00:31:066
2903918992927,2cyclictest3452688-21kworker/u16:3+events_unbound23:22:206
2903918992927,2cyclictest3172112-21kworker/u16:0+events_unbound22:26:076
2903918992927,2cyclictest3138569-21kworker/u16:2+events_unbound21:28:466
2903918992927,2cyclictest2639756-21kworker/u16:2+events_unbound19:19:476
2903918992926,2cyclictest3317914-21kworker/u16:2+flush-8:022:57:386
2903913992927,2cyclictest3172112-21kworker/u16:0+events_unbound22:16:315
290348522919,7sleep60-21swapper/619:05:436
32107042280,1chrt3210705-21ssh21:37:367
2903918992826,2cyclictest3595614-21kworker/u16:1+events_unbound00:17:026
2903918992826,2cyclictest3513147-21kworker/u16:2+events_unbound00:19:076
2903918992826,2cyclictest3500229-21kworker/u16:0+flush-8:023:42:316
2903918992826,2cyclictest3462507-21kworker/u16:4+events_unbound23:59:036
2903918992826,2cyclictest3353046-21kworker/u16:1+events_unbound23:17:356
2903918992826,2cyclictest3305539-21kworker/u16:1+events_unbound22:20:556
2903918992826,2cyclictest3051757-21kworker/u16:3+events_unbound21:43:236
2903913992826,2cyclictest3138569-21kworker/u16:2+events_unbound21:20:125
2903913992826,2cyclictest2910520-21kworker/u16:1+flush-8:019:17:525
2903918992726,1cyclictest3462507-21kworker/u16:4+events_unbound23:25:426
2903918992725,2cyclictest3500229-21kworker/u16:0+events_unbound00:04:316
2903918992725,2cyclictest3172112-21kworker/u16:0+events_unbound21:40:186
2903913992725,2cyclictest3331985-21kworker/u16:3+events_unbound22:43:235
2903908992726,1cyclictest3427213-21kworker/u16:0+events_unbound23:27:594
2903908992725,2cyclictest3051757-21kworker/u16:3+events_unbound21:38:034
2903918992624,2cyclictest3331985-21kworker/u16:3+events_unbound22:34:356
2903918992624,2cyclictest3331985-21kworker/u16:3+events_unbound22:30:476
2903918992624,2cyclictest3331985-21kworker/u16:3+events_unbound22:30:476
2903918992624,2cyclictest3138569-21kworker/u16:2+flush-8:021:33:226
2903918992624,2cyclictest3051757-21kworker/u16:3+events_unbound22:09:156
2903918992624,2cyclictest2984384-21kworker/u16:2+flush-8:020:22:516
2903918992624,2cyclictest2984384-21kworker/u16:2+events_unbound20:10:476
2903913992624,2cyclictest3500229-21kworker/u16:0+events_unbound00:28:475
2903913992624,2cyclictest3138569-21kworker/u16:2+events_unbound21:39:195
2903913992624,2cyclictest3051757-21kworker/u16:3+events_unbound20:41:505
2903918992523,2cyclictest3331985-21kworker/u16:3+events_unbound22:53:526
2903918992523,2cyclictest3051757-21kworker/u16:3+events_unbound21:53:276
2903913992523,2cyclictest3353046-21kworker/u16:1+events_unbound22:49:485
2903913992523,2cyclictest3138569-21kworker/u16:2+events_unbound21:45:285
2903908992523,2cyclictest2984384-21kworker/u16:2+events_unbound20:38:074
2903923992419,4cyclictest3392226-21latency_hist22:52:367
2903923992416,7cyclictest3549466-21latency_hist23:57:367
2903923992416,7cyclictest3549466-21latency_hist23:57:367
2903918992422,2cyclictest3004043-21kworker/u16:0+events_unbound20:14:466
2903913992422,2cyclictest3452688-21kworker/u16:3+events_unbound23:32:585
2903913992422,2cyclictest3085307-21kworker/u16:0+events_unbound20:56:025
2903913992422,2cyclictest2984384-21kworker/u16:2+events_unbound19:56:495
2903913992421,3cyclictest2984384-21kworker/u16:2+flush-8:019:47:585
290392399230,22cyclictest3610043-21latency_hist00:22:367
2903918992321,2cyclictest2955773-21kworker/u16:1+events_unbound20:31:466
2903913992321,2cyclictest3622004-21kworker/u16:3+events_unbound00:36:075
2903913992321,2cyclictest3462507-21kworker/u16:4+events_unbound23:52:505
2903913992321,2cyclictest3462507-21kworker/u16:4+events_unbound23:52:505
2903913992321,2cyclictest3331985-21kworker/u16:3+events_unbound23:03:275
2903913992321,2cyclictest2639756-21kworker/u16:2+flush-8:019:24:395
2903913992320,2cyclictest2910520-21kworker/u16:1+events_unbound19:12:375
2903908992321,2cyclictest3562578-21kworker/u16:1+events_unbound00:03:054
2903923992221,0cyclictest0-21swapper/700:06:267
2903913992220,2cyclictest3172112-21kworker/u16:0+flush-8:022:23:215
2903913992220,2cyclictest3051757-21kworker/u16:3+flush-8:021:03:585
2903913992220,2cyclictest3004043-21kworker/u16:0+events_unbound20:04:465
2903913992220,2cyclictest2639756-21kworker/u16:2+events_unbound19:08:275
2903908992220,2cyclictest3462507-21kworker/u16:4+flush-8:023:59:064
2903908992219,2cyclictest3271601-21kworker/u16:4+events_unbound22:02:504
2903918992119,2cyclictest3462507-21kworker/u16:4+events_unbound23:30:236
2903918992119,2cyclictest3317914-21kworker/u16:2+flush-8:022:39:226
2903913992119,2cyclictest3462507-21kworker/u16:4+flush-8:023:28:015
2903913992119,2cyclictest2984384-21kworker/u16:2+events_unbound20:18:275
2903913992119,2cyclictest2955773-21kworker/u16:1+flush-8:019:41:225
2903913992119,2cyclictest2955773-21kworker/u16:1+flush-8:019:41:225
2903913992119,2cyclictest2955773-21kworker/u16:1+events_unbound20:28:545
2903913992119,2cyclictest2639756-21kworker/u16:2+events_unbound19:28:235
2903908992119,2cyclictest3317914-21kworker/u16:2+events_unbound22:33:004
2903923992015,4cyclictest3585808-21latency_hist00:12:367
2903918992018,2cyclictest2984384-21kworker/u16:2+events_unbound20:20:476
2903918992018,2cyclictest2984384-21kworker/u16:2+events_unbound19:52:316
2903918992018,2cyclictest2875332-21kworker/u16:4+flush-8:019:07:506
2903918992018,2cyclictest2875332-21kworker/u16:4+events_unbound19:46:476
2903913992018,2cyclictest3562578-21kworker/u16:1+events_unbound00:02:505
2903913992018,2cyclictest2936698-21kworker/u16:0+events_unbound19:44:135
2903913992017,3cyclictest3172112-21kworker/u16:0+flush-8:021:27:315
2903908992018,2cyclictest3271601-21kworker/u16:4+flush-8:022:17:594
2903908992018,2cyclictest3118815-21kworker/u16:1+events_unbound21:18:034
2903913991917,2cyclictest3317914-21kworker/u16:2+flush-8:023:17:595
2903913991917,2cyclictest3004043-21kworker/u16:0+flush-8:020:01:315
2903913991917,2cyclictest2955773-21kworker/u16:1+flush-8:020:26:565
2903913991916,2cyclictest3462507-21kworker/u16:4+events_unbound23:22:425
2903908991917,2cyclictest3452688-21kworker/u16:3+events_unbound23:33:034
2903918991816,2cyclictest2984384-21kworker/u16:2+events_unbound20:37:386
2903918991816,2cyclictest2936698-21kworker/u16:0+events_unbound19:27:286
2903913991816,2cyclictest3513147-21kworker/u16:2+flush-8:000:19:185
2903913991816,2cyclictest3331985-21kworker/u16:3+events_unbound22:52:425
2903913991816,2cyclictest3317914-21kworker/u16:2+events_unbound22:41:365
2903913991816,2cyclictest3051757-21kworker/u16:3+events_unbound20:46:085
2903913991816,2cyclictest2955773-21kworker/u16:1+events_unbound20:13:225
2903913991816,2cyclictest2955773-21kworker/u16:1+events_unbound19:34:425
2903918991715,2cyclictest2910520-21kworker/u16:1+events_unbound19:13:066
2903913991715,2cyclictest3513147-21kworker/u16:2+flush-8:023:47:365
2903913991715,2cyclictest3513147-21kworker/u16:2+flush-8:023:42:595
2903913991715,2cyclictest3462507-21kworker/u16:4+events_unbound00:02:095
2903913991715,2cyclictest3305539-21kworker/u16:1+events_unbound22:18:015
2903913991715,2cyclictest3172112-21kworker/u16:0+events_unbound22:00:495
2903913991715,2cyclictest3004043-21kworker/u16:0+events_unbound20:10:025
2903908991715,2cyclictest3353046-21kworker/u16:1+flush-8:023:13:044
290392399167,3cyclictest5822-21gmain23:21:307
290392399160,14cyclictest1234-21snmpd00:29:337
290392399160,14cyclictest0-21swapper/700:22:587
2903918991614,2cyclictest3089164-21kworker/u16:4+events_unbound20:53:066
2903913991614,2cyclictest3353046-21kworker/u16:1+flush-8:023:13:025
2903913991614,2cyclictest3172112-21kworker/u16:0+events_unbound21:33:065
2903913991614,2cyclictest3051757-21kworker/u16:3+flush-8:020:50:095
2903913991613,2cyclictest3271601-21kworker/u16:4+events_unbound22:07:555
2903908991614,2cyclictest3622004-21kworker/u16:3+events_unbound00:28:024
2903908991614,2cyclictest3595614-21kworker/u16:1+events_unbound00:22:504
290392399159,5cyclictest1234-21snmpd19:23:587
290392399157,7cyclictest5822-21gmain23:02:547
290392399152,7cyclictest3403944-21ssh22:56:567
2903923991512,2cyclictest1234-21snmpd23:23:257
2903923991511,3cyclictest3246114-21sh21:50:597
2903923991511,3cyclictest3246114-21sh21:50:597
2903923991510,4cyclictest3513104-21latency_hist23:42:367
2903918991513,2cyclictest2955773-21kworker/u16:1+events_unbound20:36:456
2903918991512,2cyclictest3004043-21kworker/u16:0+events_unbound20:02:456
2903913991513,2cyclictest3595614-21kworker/u16:1+flush-8:000:22:475
2903913991513,2cyclictest3172112-21kworker/u16:0+events_unbound21:51:385
2903913991513,2cyclictest3172112-21kworker/u16:0+events_unbound21:51:385
2903913991513,2cyclictest3051757-21kworker/u16:3+events_unbound22:04:065
2903913991513,2cyclictest2955773-21kworker/u16:1+events_unbound20:36:515
2903908991513,2cyclictest3353046-21kworker/u16:1+events_unbound22:42:584
2903908991513,2cyclictest3331985-21kworker/u16:3+flush-8:023:02:594
2903908991513,2cyclictest3172112-21kworker/u16:0+flush-8:022:28:064
2903908991513,2cyclictest3172112-21kworker/u16:0+flush-8:022:28:064
2903908991513,2cyclictest2875332-21kworker/u16:4+events_unbound19:13:024
290390899150,1cyclictest0-21swapper/421:43:074
290392399148,5cyclictest1234-21snmpd20:52:097
290392399147,6cyclictest1234-21snmpd20:02:597
2903923991411,2cyclictest0-21swapper/721:43:027
2903923991410,3cyclictest1234-21snmpd21:31:347
290392399140,12cyclictest2358-21crond22:37:367
2903918991413,1cyclictest0-21swapper/620:57:576
2903918991412,2cyclictest2955773-21kworker/u16:1+events_unbound19:58:466
2903913991412,2cyclictest3500229-21kworker/u16:0+events_unbound00:11:515
2903913991412,2cyclictest3353046-21kworker/u16:1+events_unbound22:34:085
2903908991413,1cyclictest0-21swapper/423:49:244
2903908991413,1cyclictest0-21swapper/421:53:224
2903908991412,2cyclictest3513147-21kworker/u16:2+events_unbound23:42:594
2903908991412,2cyclictest3427213-21kworker/u16:0+flush-8:023:08:164
2903908991412,1cyclictest0-21swapper/400:32:554
290390899140,1cyclictest0-21swapper/421:25:464
290390899140,14cyclictest0-21swapper/422:59:544
290390899140,14cyclictest0-21swapper/421:59:314
290390899140,14cyclictest0-21swapper/400:16:594
290392399139,3cyclictest5975-21gmain22:08:027
290392399139,3cyclictest1234-21snmpd19:18:407
290392399138,4cyclictest1234-21snmpd19:55:417
290392399136,6cyclictest6382-21gvfs-afc-volume23:35:087
290392399135,3cyclictest6032-21gmain20:54:107
290392399135,2cyclictest918-21gmain20:38:117
290392399134,3cyclictest6101-21gmain23:12:427
290392399133,3cyclictest5822-21gmain22:57:547
2903923991312,0cyclictest0-21swapper/721:18:027
2903923991310,2cyclictest0-21swapper/722:12:537
2903918991311,2cyclictest2936698-21kworker/u16:0+events_unbound19:36:006
2903913991311,2cyclictest3138569-21kworker/u16:2+flush-8:021:13:315
2903913991311,2cyclictest3051757-21kworker/u16:3+events_unbound21:12:055
2903913991311,2cyclictest3051757-21kworker/u16:3+events_unbound21:12:055
2903908991312,1cyclictest0-21swapper/422:25:504
2903908991310,2cyclictest2984384-21kworker/u16:2+flush-8:020:03:084
290390899130,13cyclictest0-21swapper/421:48:094
290390899130,13cyclictest0-21swapper/421:48:094
290392399129,2cyclictest6382-21gvfs-afc-volume22:42:567
290392399129,2cyclictest1234-21snmpd00:13:117
290392399129,2cyclictest0-21swapper/722:03:007
290392399128,3cyclictest1234-21snmpd20:18:247
290392399128,3cyclictest1234-21snmpd20:16:247
290392399128,3cyclictest1234-21snmpd19:35:567
290392399128,3cyclictest1234-21snmpd19:29:357
290392399128,3cyclictest0-21swapper/719:42:367
290392399128,3cyclictest0-21swapper/719:42:367
290392399127,4cyclictest635-21systemd-journal23:12:357
290392399126,5cyclictest6382-21gvfs-afc-volume23:51:177
290392399126,5cyclictest6382-21gvfs-afc-volume21:15:157
290392399126,5cyclictest6382-21gvfs-afc-volume21:09:427
290392399126,5cyclictest6382-21gvfs-afc-volume21:09:427
290392399126,5cyclictest1234-21snmpd19:48:147
290392399126,1cyclictest3268261-21ssh21:58:037
290392399125,6cyclictest6382-21gvfs-afc-volume22:34:277
290392399125,2cyclictest3560544-21ssh00:00:447
290392399123,5cyclictest6382-21gvfs-afc-volume20:07:577
290392399122,4cyclictest1172-21tuned22:28:197
290392399122,4cyclictest1172-21tuned22:28:197
290392399120,11cyclictest1234-21snmpd20:26:487
2903913991210,2cyclictest3317914-21kworker/u16:2+events_unbound22:57:575
2903913991210,2cyclictest3172112-21kworker/u16:0+events_unbound21:27:435
290390899127,4cyclictest3110486-21cat20:52:514
2903908991211,1cyclictest0-21swapper/423:23:234
2903908991211,1cyclictest0-21swapper/421:13:574
290392399118,2cyclictest1234-21snmpd23:29:077
290392399118,2cyclictest1234-21snmpd22:27:187
290392399117,3cyclictest1234-21snmpd21:57:057
290392399117,3cyclictest1234-21snmpd21:07:287
290392399117,3cyclictest1234-21snmpd19:59:357
290392399116,5cyclictest6382-21gvfs-afc-volume21:41:297
290392399113,3cyclictest1234-21snmpd00:33:027
2903923991111,0cyclictest0-21swapper/720:59:267
290392399110,10cyclictest1234-21snmpd20:47:067
290391899110,11cyclictest0-21swapper/621:07:066
290390899119,2cyclictest3462507-21kworker/u16:4+flush-8:000:07:514
290390899118,2cyclictest5827-21JS15:59:264
290390899117,3cyclictest2947121-21cat19:27:504
2903908991110,1cyclictest0-21swapper/422:42:334
2903908991110,1cyclictest0-21swapper/422:12:364
2903908991110,1cyclictest0-21swapper/421:02:074
2903908991110,1cyclictest0-21swapper/420:35:294
2903908991110,1cyclictest0-21swapper/420:24:174
2903908991110,1cyclictest0-21swapper/419:59:324
2903908991110,1cyclictest0-21swapper/419:47:144
290392399106,3cyclictest1234-21snmpd19:43:357
290392399105,4cyclictest2926777-21wc19:17:377
290392399101,4cyclictest1172-21tuned20:33:017
290391899100,3cyclictest2947686-21grep19:27:516
290391399108,2cyclictest3246466-21kworker/u16:1+flush-8:021:53:015
290391399108,2cyclictest3172112-21kworker/u16:0+events_unbound22:30:255
290391399108,2cyclictest3172112-21kworker/u16:0+events_unbound22:30:255
290391399108,1cyclictest3430289-21kthreadcore23:07:545
290390899109,1cyclictest0-21swapper/421:31:464
290390899108,2cyclictest3595614-21kworker/u16:1+flush-8:000:22:364
290390899106,3cyclictest2955773-21kworker/u16:1+flush-8:020:17:544
29039089997,2cyclictest3500229-21kworker/u16:0+events_unbound23:52:524
29039089997,2cyclictest3500229-21kworker/u16:0+events_unbound23:52:524
29039089996,2cyclictest2927130-21/usr/sbin/munin19:18:044
29039089994,4cyclictest2994674-21cstates19:52:494
29039089990,8cyclictest3143253-21tr21:07:574
29039089990,8cyclictest3143253-21tr21:07:574
29039089990,8cyclictest0-21swapper/419:07:474
29039089986,2cyclictest3118815-21kworker/u16:1+events_unbound21:03:024
29039089986,1cyclictest0-21swapper/419:32:574
29039089984,3cyclictest3208178-21cat21:33:084
29039089984,3cyclictest2937438-21tune2fs19:22:504
29039089983,4cyclictest3501547-21cat23:37:474
29039089983,4cyclictest3393422-21tune2fs22:52:494
29039089983,4cyclictest3108393-21ntp_states20:47:594
29039089983,4cyclictest2969697-21kthreadcore19:37:564
29039089983,4cyclictest2969697-21kthreadcore19:37:564
29039089980,1cyclictest0-21swapper/420:07:494
29039089973,3cyclictest3033360-21cat20:12:484
29039089972,4cyclictest3453353-21tr23:17:474
29039089972,4cyclictest3065267-21cut20:27:544
29039089972,4cyclictest2985447-21fschecks_time19:47:484
29039089965,1cyclictest0-21swapper/420:47:284
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