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2026-07-24 - 11:50
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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 24, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21397682950,0sleep60-21swapper/621:44:206
181689525319,29sleep70-21swapper/719:07:017
181677324232,7sleep50-21swapper/519:05:225
1817346994037,2cyclictest2493837-21kworker/u16:3+events_unbound00:14:226
1817342993937,2cyclictest2417679-21kworker/u16:2+events_unbound00:09:195
1817342993836,2cyclictest2493837-21kworker/u16:3+events_unbound00:27:355
1817342993836,2cyclictest2088348-21kworker/u16:1+events_unbound22:13:435
1817340993835,2cyclictest2417679-21kworker/u16:2+events_unbound23:39:234
1817342993735,2cyclictest2088348-21kworker/u16:1+events_unbound23:53:475
1817342993735,2cyclictest2088348-21kworker/u16:1+events_unbound23:53:475
1817340993735,2cyclictest2100791-21kworker/u16:2+flush-8:021:49:554
1817340993735,2cyclictest2088348-21kworker/u16:1+events_unbound22:57:124
1817342993634,2cyclictest2493837-21kworker/u16:3+events_unbound00:23:565
1817342993634,2cyclictest2417679-21kworker/u16:2+events_unbound23:40:355
1817342993634,2cyclictest2249608-21kworker/u16:0+events_unbound22:57:355
1817342993634,2cyclictest2188511-21kworker/u16:4+events_unbound22:14:385
1817342993634,2cyclictest2088348-21kworker/u16:1+events_unbound00:16:075
1817342993634,2cyclictest2088348-21kworker/u16:1+events_unbound00:12:195
1817342993634,2cyclictest1995907-21kworker/u16:4+events_unbound21:12:475
1817340993634,2cyclictest2113438-21kworker/u16:3+events_unbound21:56:514
1817342993533,2cyclictest2417679-21kworker/u16:2+events_unbound00:37:275
1817342993533,2cyclictest2298584-21kworker/u16:3+flush-8:023:14:035
1817342993533,2cyclictest2261766-21kworker/u16:2+events_unbound22:42:365
1817342993533,2cyclictest2188513-21kworker/u16:6+events_unbound22:28:325
1817342993533,2cyclictest2188513-21kworker/u16:6+events_unbound22:28:325
1817342993533,2cyclictest2188512-21kworker/u16:5+events_unbound22:08:035
1817342993533,2cyclictest2113438-21kworker/u16:3+events_unbound22:01:075
1817342993533,2cyclictest2088348-21kworker/u16:1+events_unbound23:46:035
1817342993533,2cyclictest2088348-21kworker/u16:1+events_unbound22:48:115
1817340993533,2cyclictest2249608-21kworker/u16:0+events_unbound22:52:114
1817340993533,2cyclictest2249608-21kworker/u16:0+events_unbound22:32:194
1817340993533,2cyclictest2188513-21kworker/u16:6+events_unbound22:35:484
1817340993533,2cyclictest2088348-21kworker/u16:1+events_unbound23:55:164
1817340993533,2cyclictest2088348-21kworker/u16:1+events_unbound23:46:354
1817340993533,2cyclictest2088348-21kworker/u16:1+events_unbound23:19:444
1817340993532,2cyclictest2359224-21kworker/u16:0+events_unbound23:29:034
181692123525,7sleep60-21swapper/619:07:246
1817346993432,2cyclictest1878927-21kworker/u16:3+flush-8:019:44:216
1817346993430,3cyclictest2088348-21kworker/u16:1+flush-8:022:49:206
1817342993432,2cyclictest2456929-21kworker/u16:4+flush-8:023:55:115
1817342993432,2cyclictest2417679-21kworker/u16:2+flush-8:000:02:315
1817342993432,2cyclictest2417679-21kworker/u16:2+events_unbound23:39:035
1817342993432,2cyclictest2359224-21kworker/u16:0+events_unbound23:32:115
1817342993432,2cyclictest2298584-21kworker/u16:3+events_unbound23:06:275
1817342993432,2cyclictest2249608-21kworker/u16:0+events_unbound22:51:595
1817342993432,2cyclictest2249608-21kworker/u16:0+events_unbound22:38:325
1817342993432,2cyclictest2188513-21kworker/u16:6+events_unbound22:22:035
1817342993432,2cyclictest2088348-21kworker/u16:1+events_unbound23:03:235
1817342993432,2cyclictest2088348-21kworker/u16:1+events_unbound21:53:125
1817342993432,2cyclictest2088348-21kworker/u16:1+events_unbound00:30:475
1817342993432,2cyclictest2088348-21kworker/u16:1+events_unbound00:30:475
1817340993432,2cyclictest2541500-21kworker/u16:0+events_unbound00:29:444
1817340993432,2cyclictest2541500-21kworker/u16:0+events_unbound00:29:444
1817340993432,2cyclictest2417679-21kworker/u16:2+events_unbound23:37:514
1817340993432,2cyclictest2188511-21kworker/u16:4+events_unbound22:23:084
1817340993432,2cyclictest2088348-21kworker/u16:1+events_unbound21:31:034
1817340993432,2cyclictest1804025-21kworker/u16:2+events_unbound21:12:004
1817346993331,2cyclictest1995907-21kworker/u16:4+events_unbound20:59:436
1817342993331,2cyclictest2113438-21kworker/u16:3+events_unbound21:46:435
1817342993331,2cyclictest2113438-21kworker/u16:3+events_unbound21:46:435
1817342993331,2cyclictest2063114-21kworker/u16:0+events_unbound21:30:125
1817340993331,2cyclictest2493837-21kworker/u16:3+events_unbound00:21:004
1817340993331,2cyclictest2493837-21kworker/u16:3+events_unbound00:11:164
1817340993331,2cyclictest2113438-21kworker/u16:3+events_unbound21:46:164
1817340993331,2cyclictest2113438-21kworker/u16:3+events_unbound21:46:164
1817340993331,2cyclictest2100791-21kworker/u16:2+flush-8:021:41:234
1817340993331,2cyclictest2088348-21kworker/u16:1+flush-8:023:18:194
1817340993331,2cyclictest2088348-21kworker/u16:1+events_unbound00:18:384
1817340993331,2cyclictest1995907-21kworker/u16:4+events_unbound21:15:314
1817346993230,2cyclictest2493837-21kworker/u16:3+events_unbound00:24:436
1817346993230,2cyclictest1888725-21kworker/u16:1+flush-8:020:19:166
1817342993230,2cyclictest2359224-21kworker/u16:0+events_unbound23:20:595
1817342993230,2cyclictest2088348-21kworker/u16:1+events_unbound22:30:435
1817342993230,2cyclictest1804025-21kworker/u16:2+flush-8:021:19:125
1817340993230,2cyclictest2432730-21kworker/u16:0+events_unbound00:08:084
1817340993230,2cyclictest2432730-21kworker/u16:0+events_unbound00:00:474
1817340993230,2cyclictest2322803-21kworker/u16:5+events_unbound23:03:314
1817340993230,2cyclictest2188511-21kworker/u16:4+events_unbound22:15:564
1817340993230,2cyclictest2100791-21kworker/u16:2+flush-8:021:37:484
1817340993230,2cyclictest2088348-21kworker/u16:1+events_unbound22:40:084
1817340993230,2cyclictest2088348-21kworker/u16:1+events_unbound22:11:074
1817340993229,2cyclictest2322803-21kworker/u16:5+flush-8:023:29:314
181691023221,8sleep40-21swapper/419:07:144
1817346993129,2cyclictest2088348-21kworker/u16:1+flush-8:022:49:556
1817342993129,2cyclictest2113438-21kworker/u16:3+events_unbound21:57:125
1817342993129,2cyclictest2100791-21kworker/u16:2+events_unbound21:35:235
1817342993129,2cyclictest1995907-21kworker/u16:4+events_unbound21:21:325
1817342993129,2cyclictest1946957-21kworker/u16:3+events_unbound20:27:485
1817340993129,2cyclictest2417679-21kworker/u16:2+events_unbound00:27:394
1817340993129,2cyclictest2298584-21kworker/u16:3+events_unbound23:14:084
1817340993129,2cyclictest2298584-21kworker/u16:3+events_unbound23:08:284
1817340993129,2cyclictest2088348-21kworker/u16:1+events_unbound22:47:044
1817340993129,2cyclictest1995907-21kworker/u16:4+events_unbound21:25:274
1817342993028,2cyclictest2063114-21kworker/u16:0+events_unbound21:29:085
1817342993028,2cyclictest1816828-21kworker/u16:0+events_unbound19:27:485
1817340993028,2cyclictest2322803-21kworker/u16:5+events_unbound23:54:044
1817340993028,2cyclictest2322803-21kworker/u16:5+events_unbound23:54:044
1817340993028,2cyclictest2188513-21kworker/u16:6+events_unbound22:28:484
1817340993028,2cyclictest2188513-21kworker/u16:6+events_unbound22:28:484
1817340993028,2cyclictest1995907-21kworker/u16:4+flush-8:021:20:124
23331012290,1chrt2333102-21ssh23:01:077
1817346992927,2cyclictest2188512-21kworker/u16:5+events_unbound22:14:556
1817346992927,2cyclictest1816828-21kworker/u16:0+events_unbound19:14:446
1817346992926,2cyclictest1995907-21kworker/u16:4+flush-8:021:04:366
1817342992927,2cyclictest2359224-21kworker/u16:0+events_unbound23:25:155
1817342992927,2cyclictest2025295-21kworker/u16:3+events_unbound20:58:485
1817340992927,2cyclictest2088348-21kworker/u16:1+events_unbound22:08:194
1817340992927,2cyclictest1888725-21kworker/u16:1+flush-8:020:20:484
1817340992927,2cyclictest1888725-21kworker/u16:1+flush-8:020:20:484
1817346992826,2cyclictest2088348-21kworker/u16:1+events_unbound22:24:516
1817346992826,2cyclictest2088348-21kworker/u16:1+events_unbound22:24:516
1817346992825,2cyclictest2063114-21kworker/u16:0+events_unbound21:29:236
1817342992826,2cyclictest2298584-21kworker/u16:3+events_unbound23:14:555
1817340992826,2cyclictest2127717-21kworker/u16:0+events_unbound22:03:084
1817340992826,2cyclictest1816828-21kworker/u16:0+flush-8:019:58:474
1817346992725,2cyclictest2088348-21kworker/u16:1+events_unbound23:43:236
1817342992724,2cyclictest1816828-21kworker/u16:0+events_unbound20:04:235
1817340992725,2cyclictest2088348-21kworker/u16:1+events_unbound00:35:364
181735199260,24cyclictest2225062-21latency_hist22:19:207
1817346992624,2cyclictest1995907-21kworker/u16:4+events_unbound21:09:476
1817346992624,2cyclictest1816828-21kworker/u16:0+events_unbound20:04:446
1817346992623,2cyclictest2188512-21kworker/u16:5+flush-8:022:09:416
1817342992623,2cyclictest1976643-21kworker/u16:1+events_unbound20:34:245
1817340992624,2cyclictest2025295-21kworker/u16:3+events_unbound21:05:314
1817346992523,2cyclictest2088348-21kworker/u16:1+events_unbound23:46:566
1817342992523,2cyclictest2100791-21kworker/u16:2+events_unbound21:41:225
1817342992523,2cyclictest1976643-21kworker/u16:1+events_unbound20:45:485
1817342992523,2cyclictest1804025-21kworker/u16:2+events_unbound21:03:475
1817342992523,2cyclictest1781575-21kworker/u16:1+events_unbound19:18:475
1817340992523,2cyclictest1888725-21kworker/u16:1+events_unbound20:14:154
1817351992418,5cyclictest1937622-21latency_hist20:09:207
1817346992422,2cyclictest2298584-21kworker/u16:3+events_unbound23:18:116
1817346992422,2cyclictest2088348-21kworker/u16:1+flush-8:021:29:166
1817342992422,2cyclictest2025295-21kworker/u16:3+events_unbound21:07:035
1817342992422,2cyclictest1966522-21kworker/u16:0+events_unbound20:41:115
1817342992422,2cyclictest1816828-21kworker/u16:0+events_unbound19:34:175
1817342992422,2cyclictest1804025-21kworker/u16:2+events_unbound19:41:525
1817342992422,2cyclictest1781575-21kworker/u16:1+events_unbound19:20:485
1817346992321,2cyclictest2359224-21kworker/u16:0+flush-8:023:25:196
1817346992321,2cyclictest2113438-21kworker/u16:3+flush-8:021:44:456
1817346992321,2cyclictest2113438-21kworker/u16:3+flush-8:021:44:456
1817340992320,2cyclictest1946957-21kworker/u16:3+events_unbound20:34:284
1817351992217,4cyclictest2310489-21latency_hist22:54:217
1817346992220,2cyclictest2493837-21kworker/u16:3+events_unbound00:19:466
1817346992220,2cyclictest2417679-21kworker/u16:2+events_unbound23:37:046
1817342992220,2cyclictest1976643-21kworker/u16:1+events_unbound20:33:325
1817342992220,2cyclictest1816828-21kworker/u16:0+events_unbound19:09:535
1817342992220,2cyclictest1804025-21kworker/u16:2+flush-8:020:14:555
1817342992220,2cyclictest1804025-21kworker/u16:2+events_unbound20:02:005
1817340992220,2cyclictest1995907-21kworker/u16:4+events_unbound20:51:324
1817351992120,0cyclictest0-21swapper/722:34:327
1817346992119,2cyclictest2417679-21kworker/u16:2+events_unbound00:06:196
1817346992119,2cyclictest2261766-21kworker/u16:2+events_unbound23:04:516
1817346992119,2cyclictest2188513-21kworker/u16:6+events_unbound22:35:526
1817346992119,2cyclictest2186793-21kworker/u16:2+events_unbound22:04:036
1817346992119,2cyclictest1804025-21kworker/u16:2+events_unbound19:34:446
1817346992119,2cyclictest1804025-21kworker/u16:2+events_unbound19:34:446
1817346992115,6cyclictest2088348-21kworker/u16:1+events_unbound23:52:156
1817346992115,6cyclictest2088348-21kworker/u16:1+events_unbound23:52:156
1817346992115,6cyclictest2088348-21kworker/u16:1+events_unbound22:58:206
1817342992119,2cyclictest1888725-21kworker/u16:1+flush-8:019:58:175
1817342992119,2cyclictest1804025-21kworker/u16:2+events_unbound19:52:085
1817340992119,2cyclictest1995907-21kworker/u16:4+events_unbound20:39:514
1817340992119,2cyclictest1888725-21kworker/u16:1+events_unbound19:48:484
1817346992018,2cyclictest2541500-21kworker/u16:0+flush-8:000:35:116
1817346992018,2cyclictest2417679-21kworker/u16:2+events_unbound00:00:276
1817346992018,2cyclictest2188513-21kworker/u16:6+flush-8:022:30:036
1817346992018,2cyclictest2088348-21kworker/u16:1+events_unbound23:02:236
1817340992018,2cyclictest1966522-21kworker/u16:0+events_unbound20:44:484
1817351991916,2cyclictest1302-21snmpd22:01:337
1817346991918,1cyclictest2493837-21kworker/u16:3+events_unbound00:31:346
1817346991918,1cyclictest2493837-21kworker/u16:3+events_unbound00:31:346
1817346991917,2cyclictest2456929-21kworker/u16:4+flush-8:023:55:316
1817346991917,2cyclictest2113438-21kworker/u16:3+events_unbound21:54:206
1817342991916,2cyclictest1888725-21kworker/u16:1+flush-8:019:44:315
1817340991917,2cyclictest1878927-21kworker/u16:3+events_unbound19:37:324
1817340991917,2cyclictest1878927-21kworker/u16:3+events_unbound19:37:324
1817340991917,2cyclictest1781575-21kworker/u16:1+events_unbound19:21:564
1817340991916,2cyclictest1804025-21kworker/u16:2+flush-8:019:59:284
1817346991816,2cyclictest2493837-21kworker/u16:3+events_unbound00:10:356
1817346991816,2cyclictest2359224-21kworker/u16:0+flush-8:023:29:456
1817346991816,2cyclictest2298584-21kworker/u16:3+events_unbound23:22:076
1817346991816,2cyclictest2249608-21kworker/u16:0+events_unbound22:41:326
1817346991816,2cyclictest2188513-21kworker/u16:6+events_unbound22:21:076
1817346991816,2cyclictest2088348-21kworker/u16:1+events_unbound23:10:166
1817346991816,2cyclictest1995907-21kworker/u16:4+events_unbound21:17:536
1817342991816,2cyclictest1888725-21kworker/u16:1+events_unbound20:13:325
1817340991816,2cyclictest1781575-21kworker/u16:1+events_unbound19:11:314
1817340991815,2cyclictest1816828-21kworker/u16:0+events_unbound19:29:224
1817351991714,2cyclictest1302-21snmpd20:18:257
181735199171,14cyclictest2087537-21ssh21:19:477
1817346991715,2cyclictest2188512-21kworker/u16:5+flush-8:022:08:516
1817346991715,2cyclictest1995907-21kworker/u16:4+flush-8:020:54:166
1817340991715,2cyclictest1781575-21kworker/u16:1+events_unbound19:25:474
22843062160,0sleep72284307-21sh22:40:557
181735199161,13cyclictest6664-21sshd23:39:457
181735199160,3cyclictest1108-21ntpd21:29:437
181735199160,14cyclictest0-21swapper/720:44:467
1817346991614,2cyclictest2063114-21kworker/u16:0+events_unbound21:21:526
1817342991614,2cyclictest1976643-21kworker/u16:1+events_unbound20:53:495
1817340991614,2cyclictest1804025-21kworker/u16:2+flush-8:020:05:474
181734099160,15cyclictest0-21swapper/419:14:254
1817351991512,2cyclictest0-21swapper/720:54:207
1817346991513,2cyclictest2113438-21kworker/u16:3+flush-8:021:59:156
1817346991513,2cyclictest1878927-21kworker/u16:3+events_unbound19:44:466
1817351991410,3cyclictest1302-21snmpd21:16:327
181735199140,13cyclictest0-21swapper/722:04:457
1817346991411,2cyclictest1976643-21kworker/u16:1+flush-8:020:29:226
181734699140,2cyclictest1849180-21ntp_states19:19:486
1817342991412,2cyclictest1878927-21kworker/u16:3+events_unbound19:38:525
1817342991412,2cyclictest1878927-21kworker/u16:3+events_unbound19:38:525
181734099140,14cyclictest0-21swapper/420:29:474
181735199139,3cyclictest1302-21snmpd22:55:177
181735199139,3cyclictest1302-21snmpd20:39:377
181735199139,3cyclictest1302-21snmpd20:35:227
181735199138,4cyclictest2164025-21latency_hist21:54:207
181735199138,4cyclictest1826877-21latency_hist19:14:217
1817351991311,1cyclictest2212921-21turbostat22:14:207
1817351991310,2cyclictest1302-21snmpd23:32:217
1817351991310,2cyclictest0-21swapper/700:39:207
181735199130,3cyclictest2505370-21ssh00:13:357
181735199130,2cyclictest2380616-21ntpq23:19:487
181735199130,11cyclictest2142119-21ssh21:44:387
181735199130,11cyclictest2142119-21ssh21:44:387
181735199130,11cyclictest1302-21snmpd20:25:227
181735199130,11cyclictest0-21swapper/720:59:457
1817346991310,2cyclictest1816828-21kworker/u16:0+events_unbound19:54:286
1817340991311,2cyclictest1888725-21kworker/u16:1+events_unbound20:17:484
181735199129,2cyclictest1302-21snmpd20:11:457
181735199129,2cyclictest1302-21snmpd19:15:117
181735199128,3cyclictest1302-21snmpd20:32:407
181735199128,3cyclictest1302-21snmpd20:22:347
181735199128,3cyclictest1302-21snmpd20:22:347
181735199126,5cyclictest2530125-21latency_hist00:24:207
181735199125,6cyclictest6233-21gvfs-afc-volume19:39:417
1817351991212,0cyclictest0-21swapper/722:22:287
1817351991210,1cyclictest0-21swapper/719:54:457
1817351991210,1cyclictest0-21swapper/719:44:367
181735199120,10cyclictest2673-21crond23:04:207
1817346991210,2cyclictest2088348-21kworker/u16:1+events_unbound21:34:446
1817346991210,2cyclictest1976643-21kworker/u16:1+flush-8:020:54:476
1817346991210,2cyclictest1946957-21kworker/u16:3+flush-8:020:24:496
181734699120,1cyclictest0-21swapper/620:19:436
181734699120,1cyclictest0-21swapper/620:19:436
181734699120,11cyclictest0-21swapper/620:44:286
1817340991210,2cyclictest1976643-21kworker/u16:1+flush-8:020:55:044
1817340991210,2cyclictest1888725-21kworker/u16:1+flush-8:019:49:464
181734099120,11cyclictest0-21swapper/420:24:354
181735199118,2cyclictest2356911-21ssh23:10:057
181735199118,2cyclictest1302-21snmpd21:11:087
181735199118,2cyclictest1302-21snmpd20:50:167
181735199118,2cyclictest1302-21snmpd00:02:137
181735199118,2cyclictest0-21swapper/723:49:447
181735199118,2cyclictest0-21swapper/723:49:447
181735199118,2cyclictest0-21swapper/722:44:217
181735199117,3cyclictest1302-21snmpd22:30:197
181735199117,3cyclictest1302-21snmpd21:42:337
181735199116,5cyclictest6233-21gvfs-afc-volume00:07:177
181735199116,3cyclictest1302-21snmpd21:24:447
181735199115,5cyclictest6233-21gvfs-afc-volume23:16:347
181735199115,5cyclictest6233-21gvfs-afc-volume00:29:257
181735199115,5cyclictest6233-21gvfs-afc-volume00:29:257
181735199113,8cyclictest1108-21ntpd23:48:157
181735199112,4cyclictest2395118-21diskmemload23:28:067
181735199110,1cyclictest0-21swapper/722:24:327
181735199110,1cyclictest0-21swapper/722:24:327
181735199110,10cyclictest2468061-21ssh23:57:277
1817346991110,1cyclictest0-21swapper/620:13:156
1817346991110,1cyclictest0-21swapper/619:32:536
181734699110,10cyclictest1907892-21sed19:49:506
181734299119,2cyclictest1804025-21kworker/u16:2+flush-8:020:19:525
181734299119,2cyclictest1804025-21kworker/u16:2+flush-8:020:19:525
181734099119,2cyclictest2025295-21kworker/u16:3+flush-8:020:59:244
181735199107,2cyclictest1302-21snmpd21:56:277
181735199107,2cyclictest1302-21snmpd19:22:117
181735199107,2cyclictest1108-21ntpd19:59:507
181735199106,3cyclictest6050-21gmain19:50:077
181735199106,3cyclictest1302-21snmpd19:39:097
181735199106,3cyclictest1302-21snmpd19:39:097
181735199106,3cyclictest1302-21snmpd19:25:237
181735199106,3cyclictest0-21swapper/700:14:467
181735199105,4cyclictest2540659-21rm00:26:107
181735199103,6cyclictest6233-21gvfs-afc-volume23:34:267
181735199100,8cyclictest1302-21snmpd21:04:357
181735199100,4cyclictest2124926-21taskset21:34:597
181735199100,1cyclictest0-21swapper/719:29:387
181734699100,9cyclictest1819317-21cut19:09:386
181734099108,2cyclictest1816828-21kworker/u16:0+events_unbound19:40:484
18173469997,2cyclictest1804025-21kworker/u16:2+flush-8:020:01:316
18173469995,3cyclictest1986605-21cpuspeed_turbos20:34:326
18173469990,2cyclictest1850482-21/usr/sbin/munin19:24:396
18173469986,1cyclictest0-21swapper/620:39:406
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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