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2026-04-11 - 03:30
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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 Sat Apr 11, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
91875625342,7sleep60-21swapper/618:58:536
919293995047,2cyclictest124-21kswapd021:52:017
919293994843,4cyclictest1466520-21latency_hist23:12:017
91879224635,8sleep40-21swapper/418:59:234
919290994442,2cyclictest919032-21kworker/u16:4+flush-8:019:57:026
919288994442,2cyclictest1083061-21kworker/u16:2+flush-8:020:31:565
919290994037,2cyclictest1611944-21kworker/u16:0+events_unbound00:17:036
91869024030,7sleep50-21swapper/518:57:555
9186722393,31sleep70-21swapper/718:57:417
919293993832,5cyclictest1236998-21latency_hist21:37:017
919290993836,2cyclictest951700-21kworker/u16:1+flush-8:020:56:566
919288993735,2cyclictest1235021-21kworker/u16:3+flush-8:021:56:565
919288993634,2cyclictest1345762-21kworker/u16:2+events_unbound00:01:255
919284993634,2cyclictest1647674-21kworker/u16:2+events_unbound00:27:234
919288993532,2cyclictest1515275-21kworker/u16:1+flush-8:023:42:155
919284993431,3cyclictest1345762-21kworker/u16:2+flush-8:023:17:274
919290993330,2cyclictest1345762-21kworker/u16:2+flush-8:022:47:016
919290993230,2cyclictest919032-21kworker/u16:4+flush-8:020:07:326
919290993230,2cyclictest919031-21kworker/u16:0+flush-8:019:07:026
919290993129,2cyclictest980003-21kworker/u16:0+flush-8:019:32:016
919290993028,2cyclictest919032-21kworker/u16:4+flush-8:019:57:326
919288993028,2cyclictest1345762-21kworker/u16:2+events_unbound22:57:215
919290992825,2cyclictest1028205-21kworker/u16:0+flush-8:020:22:176
919288992826,2cyclictest951700-21kworker/u16:1+flush-8:020:46:575
919288992825,2cyclictest1345762-21kworker/u16:2+flush-8:023:17:165
919288992825,2cyclictest1235021-21kworker/u16:3+flush-8:021:37:015
919290992723,3cyclictest1393992-21kworker/u16:0+flush-8:022:52:136
919288992725,2cyclictest919032-21kworker/u16:4+events_unbound19:12:195
919288992725,2cyclictest1345762-21kworker/u16:2+events_unbound00:07:315
919288992723,3cyclictest980003-21kworker/u16:0+flush-8:019:32:275
919284992726,1cyclictest1345763-21kworker/u16:4+flush-8:023:07:004
919290992624,2cyclictest1345762-21kworker/u16:2+events_unbound00:05:336
919288992624,2cyclictest951700-21kworker/u16:1+flush-8:019:56:575
919293992524,0cyclictest0-21swapper/720:58:187
919290992523,2cyclictest951700-21kworker/u16:1+flush-8:019:27:016
919290992523,2cyclictest1345763-21kworker/u16:4+flush-8:022:57:226
919288992523,2cyclictest919032-21kworker/u16:4+flush-8:019:42:285
919293992420,3cyclictest1418103-21latency_hist22:52:007
91929399240,22cyclictest1018503-21latency_hist19:52:027
919290992422,2cyclictest1345762-21kworker/u16:2+events_unbound23:27:216
919290992421,2cyclictest1345763-21kworker/u16:4+flush-8:023:12:166
919290992421,2cyclictest1249522-21kworker/u16:1+flush-8:022:02:196
919288992421,2cyclictest951700-21kworker/u16:1+events_unbound20:02:215
919284992422,2cyclictest1200764-21kworker/u16:2+events_unbound21:42:164
919293992322,0cyclictest0-21swapper/720:51:557
919290992321,2cyclictest919032-21kworker/u16:4+flush-8:019:12:226
919290992321,2cyclictest1587829-21kworker/u16:1+events_unbound00:12:286
919290992321,2cyclictest1587829-21kworker/u16:1+events_unbound00:12:286
919290992220,2cyclictest1345763-21kworker/u16:4+flush-8:022:32:276
919288992220,2cyclictest951700-21kworker/u16:1+events_unbound19:17:185
919288992220,2cyclictest1345762-21kworker/u16:2+events_unbound23:11:555
919293992120,0cyclictest0-21swapper/719:39:407
919293992120,0cyclictest0-21swapper/700:02:537
919293992113,7cyclictest1267-21snmpd22:10:347
919288992119,2cyclictest1454266-21kworker/u16:0+events_unbound23:47:035
919293992019,0cyclictest0-21swapper/720:39:387
919293992016,3cyclictest1551332-21sed23:47:017
919290992018,2cyclictest989914-21kworker/u16:2+flush-8:019:47:226
919290992018,2cyclictest1094584-21kworker/u16:3+events_unbound20:37:296
919290992017,2cyclictest1152295-21kworker/u16:4+flush-8:021:12:016
919288992018,2cyclictest919032-21kworker/u16:4+flush-8:019:07:075
919284992016,3cyclictest951700-21kworker/u16:1+flush-8:019:27:274
919293991919,0cyclictest0-21swapper/721:10:487
919293991918,0cyclictest0-21swapper/720:33:007
919293991918,0cyclictest0-21swapper/719:21:347
91929399190,17cyclictest1037499-21sshd-session20:00:317
919290991918,1cyclictest1272020-21kworker/u16:0+events_unbound21:52:036
919290991917,2cyclictest951700-21kworker/u16:1+events_unbound20:32:176
919290991917,2cyclictest1515275-21kworker/u16:1+flush-8:023:42:006
919290991917,2cyclictest1515275-21kworker/u16:1+flush-8:023:42:006
919288991917,2cyclictest1272020-21kworker/u16:0+events_unbound22:12:245
919288991917,2cyclictest1235021-21kworker/u16:3+flush-8:021:42:445
919288991916,2cyclictest1186140-21kworker/u16:3+flush-8:021:17:075
91929399186,11cyclictest0-21swapper/723:12:217
919293991818,0cyclictest0-21swapper/723:17:447
919293991817,0cyclictest0-21swapper/720:17:237
919293991817,0cyclictest0-21swapper/720:04:147
919293991817,0cyclictest0-21swapper/719:30:357
919293991817,0cyclictest0-21swapper/719:23:317
919290991816,2cyclictest919032-21kworker/u16:4+events_unbound19:42:216
919290991816,2cyclictest1200764-21kworker/u16:2+events_unbound21:37:256
91928499180,17cyclictest0-21swapper/419:22:244
91929399178,8cyclictest0-21swapper/722:17:267
91929399176,9cyclictest0-21swapper/722:02:147
919293991716,0cyclictest0-21swapper/720:26:297
919293991715,1cyclictest0-21swapper/719:32:257
919293991711,5cyclictest1142716-21latency_hist20:57:017
919290991715,2cyclictest1345763-21kworker/u16:4+flush-8:023:22:016
919290991715,2cyclictest1345763-21kworker/u16:4+flush-8:022:47:126
919290991715,2cyclictest1272020-21kworker/u16:0+flush-8:021:57:276
919290991715,2cyclictest1152295-21kworker/u16:4+events_unbound21:12:286
919288991715,2cyclictest989914-21kworker/u16:2+events_unbound19:47:165
919288991715,2cyclictest951700-21kworker/u16:1+flush-8:021:12:015
919288991715,2cyclictest1345763-21kworker/u16:4+events_unbound22:47:155
919288991714,2cyclictest951700-21kworker/u16:1+events_unbound21:12:185
919288991714,2cyclictest951700-21kworker/u16:1+events_unbound20:12:155
919288991714,2cyclictest951700-21kworker/u16:1+events_unbound20:12:155
919288991714,2cyclictest919031-21kworker/u16:0+events_unbound19:02:155
919288991714,2cyclictest1293880-21kthreadcore21:57:215
91929399168,7cyclictest919281-21cyclictest23:52:057
91929399168,7cyclictest0-21swapper/721:27:237
91929399168,7cyclictest0-21swapper/700:16:587
91929399168,7cyclictest0-21swapper/700:16:587
91929399167,8cyclictest0-21swapper/721:57:017
919293991615,0cyclictest0-21swapper/723:37:157
919293991615,0cyclictest0-21swapper/723:37:157
919293991615,0cyclictest0-21swapper/720:10:007
919293991613,2cyclictest1267-21snmpd23:35:577
919293991612,3cyclictest1095031-21ls20:32:017
91929399160,2cyclictest1439229-21ssh22:57:247
91929399160,14cyclictest0-21swapper/720:42:137
919290991614,2cyclictest1454266-21kworker/u16:0+flush-8:023:42:216
919290991614,2cyclictest1213300-21kworker/u16:0+events_unbound21:29:286
919288991614,2cyclictest1587829-21kworker/u16:1+flush-8:000:12:165
919288991614,2cyclictest1587829-21kworker/u16:1+flush-8:000:12:165
919288991614,2cyclictest1563637-21kworker/u16:4+events_unbound00:02:305
919288991613,2cyclictest1345763-21kworker/u16:4+events_unbound22:42:045
919288991613,2cyclictest1213300-21kworker/u16:0+events_unbound21:27:215
919284991614,2cyclictest1345763-21kworker/u16:4+flush-8:022:27:264
919284991612,3cyclictest951700-21kworker/u16:1+flush-8:020:47:274
91929399157,7cyclictest6450-21gmain23:57:227
91929399157,7cyclictest0-21swapper/722:32:177
91929399155,8cyclictest0-21swapper/722:22:187
919293991514,1cyclictest0-21swapper/700:17:267
919293991514,0cyclictest0-21swapper/719:04:227
919293991511,3cyclictest1366675-21ssh22:27:247
919290991513,2cyclictest1249522-21kworker/u16:1+events_unbound22:37:296
919288991513,2cyclictest951700-21kworker/u16:1+flush-8:020:22:305
919288991513,2cyclictest951700-21kworker/u16:1+events_unbound19:27:285
919288991513,2cyclictest1623588-21kworker/u16:3+flush-8:000:27:245
91929399148,5cyclictest6053-21gmain23:47:147
91929399147,6cyclictest6045-21gmain21:57:157
91929399146,7cyclictest0-21swapper/722:52:187
91929399146,7cyclictest0-21swapper/721:22:267
91929399146,7cyclictest0-21swapper/700:22:127
91929399145,8cyclictest0-21swapper/722:42:027
91929399145,8cyclictest0-21swapper/721:37:147
91929399145,8cyclictest0-21swapper/700:10:487
91929399145,7cyclictest0-21swapper/723:02:137
919293991413,0cyclictest0-21swapper/721:17:167
919293991413,0cyclictest0-21swapper/720:13:497
919293991413,0cyclictest0-21swapper/720:13:497
919293991411,2cyclictest0-21swapper/723:27:017
919290991413,1cyclictest0-21swapper/623:52:216
919290991413,1cyclictest0-21swapper/600:30:596
919290991412,2cyclictest1094584-21kworker/u16:3+events_unbound20:47:276
91929099140,1cyclictest0-21swapper/621:43:056
91929099140,14cyclictest0-21swapper/622:16:026
919288991413,1cyclictest1454266-21kworker/u16:0+events_unbound23:15:205
919288991413,1cyclictest0-21swapper/521:39:225
919288991412,2cyclictest991rcuop/721:04:415
919288991412,2cyclictest919032-21kworker/u16:4+flush-8:019:22:215
919288991412,2cyclictest1454266-21kworker/u16:0+flush-8:023:52:185
919288991412,2cyclictest1454266-21kworker/u16:0+events_unbound23:32:265
919288991412,2cyclictest1345763-21kworker/u16:4+flush-8:023:26:565
919288991412,2cyclictest1094584-21kworker/u16:3+flush-8:020:36:565
91928899140,14cyclictest0-21swapper/522:04:455
919284991411,2cyclictest919032-21kworker/u16:4+flush-8:019:07:224
91928499140,1cyclictest0-21swapper/422:42:194
91928499140,14cyclictest0-21swapper/421:32:294
91928499140,13cyclictest0-21swapper/420:17:254
91929399136,6cyclictest0-21swapper/722:37:077
91929399136,6cyclictest0-21swapper/721:44:117
91929399136,6cyclictest0-21swapper/721:02:367
91929399135,7cyclictest0-21swapper/723:22:237
91929399135,7cyclictest0-21swapper/721:12:377
91929399135,7cyclictest0-21swapper/700:27:247
91929399134,8cyclictest0-21swapper/722:12:197
919290991312,1cyclictest0-21swapper/600:24:506
919290991311,2cyclictest951700-21kworker/u16:1+events_unbound21:17:256
919290991311,2cyclictest1235021-21kworker/u16:3+flush-8:021:47:166
919290991311,2cyclictest1186140-21kworker/u16:3+events_unbound21:22:036
919290991311,2cyclictest1083061-21kworker/u16:2+events_unbound21:02:136
91929099130,13cyclictest0-21swapper/623:36:356
91929099130,13cyclictest0-21swapper/623:20:596
91929099130,13cyclictest0-21swapper/623:11:126
91929099130,0cyclictest0-21swapper/600:00:336
91928899139,3cyclictest1202047-21cat21:22:185
919288991312,1cyclictest0-21swapper/521:48:225
919288991312,1cyclictest0-21swapper/520:01:195
919288991311,2cyclictest1345763-21kworker/u16:4+events_unbound22:37:275
919288991311,2cyclictest1345762-21kworker/u16:2+events_unbound22:30:075
919288991311,2cyclictest1094584-21kworker/u16:3+events_unbound20:37:165
91928899130,13cyclictest0-21swapper/522:23:215
919284991312,1cyclictest0-21swapper/421:51:054
91928499130,1cyclictest0-21swapper/423:56:254
91928499130,13cyclictest0-21swapper/423:50:074
91928499130,13cyclictest0-21swapper/422:51:564
91928499130,13cyclictest0-21swapper/419:34:244
91928499130,13cyclictest0-21swapper/400:12:584
91928499130,13cyclictest0-21swapper/400:12:584
91928499130,12cyclictest0-21swapper/400:17:044
91929399128,3cyclictest1267-21snmpd19:52:227
91929399128,3cyclictest1267-21snmpd19:42:527
91929399128,3cyclictest1267-21snmpd19:08:427
919290991211,1cyclictest0-21swapper/623:48:156
919290991211,1cyclictest0-21swapper/622:23:266
919290991211,1cyclictest0-21swapper/600:08:366
91928899129,3cyclictest1623979-21kworker/u16:5+events_unbound00:22:005
91928899129,2cyclictest1371302-21irqcore22:32:165
919288991211,1cyclictest0-21swapper/523:03:055
91928899120,12cyclictest0-21swapper/520:58:515
91928899120,11cyclictest0-21swapper/523:37:135
91928899120,11cyclictest0-21swapper/523:37:135
91928499129,2cyclictest1523688-21needreboot23:32:214
91928499128,3cyclictest951700-21kworker/u16:1+flush-8:020:02:184
91928499128,3cyclictest1636891-21cat00:22:134
919284991211,1cyclictest0-21swapper/423:07:524
919284991211,1cyclictest0-21swapper/422:02:074
919284991211,1cyclictest0-21swapper/421:54:434
919284991211,1cyclictest0-21swapper/421:19:244
919284991211,1cyclictest0-21swapper/400:02:344
919284991210,2cyclictest1345762-21kworker/u16:2+flush-8:000:07:274
91928499120,12cyclictest0-21swapper/422:53:504
91929399114,6cyclictest0-21swapper/719:12:157
91929099119,2cyclictest1345763-21kworker/u16:4+events_unbound22:28:436
919290991110,1cyclictest0-21swapper/619:34:546
919290991110,1cyclictest0-21swapper/619:18:596
91929099110,11cyclictest0-21swapper/620:05:116
91928899119,2cyclictest1272020-21kworker/u16:0+events_unbound22:07:275
919288991110,1cyclictest0-21swapper/520:54:555
91928899110,11cyclictest0-21swapper/519:40:025
91928499119,2cyclictest1345763-21kworker/u16:4+flush-8:023:12:214
91928499118,2cyclictest951700-21kworker/u16:1+events_unbound21:27:154
919284991110,1cyclictest0-21swapper/423:31:594
919284991110,1cyclictest0-21swapper/423:23:574
919284991110,1cyclictest0-21swapper/422:15:314
919284991110,1cyclictest0-21swapper/420:36:504
919284991110,1cyclictest0-21swapper/419:58:124
91928499110,1cyclictest0-21swapper/420:42:404
91928499110,11cyclictest0-21swapper/419:04:554
91929099109,1cyclictest0-21swapper/620:44:546
91929099109,1cyclictest0-21swapper/620:31:116
91929099108,2cyclictest951700-21kworker/u16:1+flush-8:020:57:206
91929099108,2cyclictest1272020-21kworker/u16:0+flush-8:022:07:176
91929099108,1cyclictest0-21swapper/619:07:206
91928899109,1cyclictest0-21swapper/523:30:315
91928899108,2cyclictest1623979-21kworker/u16:5+flush-8:000:22:205
91928899108,2cyclictest1074175-21kthreadcore20:17:215
91928899108,1cyclictest0-21swapper/520:47:195
91928499109,1cyclictest0-21swapper/423:01:524
91928499109,1cyclictest0-21swapper/422:00:144
91928499109,1cyclictest0-21swapper/421:04:354
91928499109,1cyclictest0-21swapper/420:38:434
91928499109,1cyclictest0-21swapper/420:28:574
91928499109,1cyclictest0-21swapper/420:15:334
91928499109,1cyclictest0-21swapper/420:15:334
91928499108,2cyclictest919032-21kworker/u16:4+events_unbound19:17:164
626589100,0rtkit-daemon0-21swapper/421:25:204
9192909997,2cyclictest1213300-21kworker/u16:0+events_unbound21:35:126
9192909996,2cyclictest919032-21kworker/u16:4+events_unbound20:17:146
9192889997,1cyclictest1418674-21/usr/sbin/munin22:52:135
9192889997,1cyclictest0-21swapper/522:17:245
9192849998,1cyclictest0-21swapper/422:34:364
9192849998,1cyclictest0-21swapper/422:07:484
9192849998,1cyclictest0-21swapper/421:40:034
9192849998,1cyclictest0-21swapper/420:23:074
9192849998,1cyclictest0-21swapper/419:16:074
9192849997,2cyclictest1345762-21kworker/u16:2+flush-8:023:37:254
9192849997,2cyclictest1345762-21kworker/u16:2+flush-8:023:37:254
9192849990,8cyclictest0-21swapper/419:47:284
9192909987,1cyclictest0-21swapper/620:13:516
9192909987,1cyclictest0-21swapper/620:13:516
9192909986,2cyclictest989914-21kworker/u16:2+events_unbound19:37:166
9192909985,2cyclictest1235021-21kworker/u16:3+flush-8:022:22:016
9192909983,4cyclictest1445512-21cut23:02:186
9192889986,1cyclictest0-21swapper/520:07:215
9192849987,1cyclictest0-21swapper/420:52:364
9192849987,1cyclictest0-21swapper/400:00:314
9192849986,1cyclictest0-21swapper/423:42:164
9192849984,3cyclictest1052454-21kthreadcore20:07:204
9192849983,4cyclictest1336123-21cat22:17:194
9192849983,4cyclictest1005992-21cut19:42:214
9192849982,2cyclictest0-21swapper/419:39:584
9192849981,5cyclictest1177565-21fschecks_count21:12:164
9192849980,7cyclictest0-21swapper/422:22:194
9192849974,2cyclictest1143308-21cpuspeed_turbos20:57:134
9192849973,3cyclictest1383233-21cat22:37:174
9192849973,3cyclictest1165269-21expr21:07:134
9192849972,4cyclictest1020868-21cat19:52:194
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