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2026-05-13 - 03:50
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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 highest latencies:
System rack0slot2.osadl.org (updated Wed May 13, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76953026252,7sleep40-21swapper/419:04:044
770105995550,4cyclictest1077204-21latency_hist21:38:077
770099995048,2cyclictest1234503-21kworker/u16:0+events_unbound00:08:395
76982025040,7sleep50-21swapper/519:08:065
770100994543,2cyclictest1210346-21kworker/u16:2+flush-8:022:38:086
7689792416,29sleep70-21swapper/719:03:437
770099993937,2cyclictest995094-21kworker/u16:1+events_unbound21:30:395
770099993937,2cyclictest1210346-21kworker/u16:2+events_unbound23:55:475
770099993836,2cyclictest1343314-21kworker/u16:1+flush-8:023:50:485
770099993836,2cyclictest1135273-21kworker/u16:1+events_unbound22:52:035
770099993735,2cyclictest1343314-21kworker/u16:1+events_unbound23:35:395
770099993735,2cyclictest1234503-21kworker/u16:0+events_unbound00:06:035
770099993735,2cyclictest1113487-21kworker/u16:4+events_unbound22:04:125
770099993634,2cyclictest975895-21kworker/u16:3+events_unbound21:08:485
770099993634,2cyclictest760303-21kworker/u16:0+flush-8:020:13:345
770099993634,2cyclictest1210346-21kworker/u16:2+events_unbound23:30:445
770099993634,2cyclictest1210346-21kworker/u16:2+events_unbound22:55:045
770099993634,2cyclictest1161110-21kworker/u16:0+flush-8:022:23:475
770099993634,2cyclictest1135273-21kworker/u16:1+flush-8:022:39:275
770099993634,2cyclictest1135273-21kworker/u16:1+events_unbound23:10:235
770099993634,2cyclictest1135273-21kworker/u16:1+events_unbound23:10:235
770099993533,2cyclictest995094-21kworker/u16:1+events_unbound21:25:365
770099993533,2cyclictest1343314-21kworker/u16:1+events_unbound23:58:475
770099993533,2cyclictest1234503-21kworker/u16:0+flush-8:023:18:515
770099993533,2cyclictest1234503-21kworker/u16:0+events_unbound23:24:235
770099993533,2cyclictest1234503-21kworker/u16:0+events_unbound00:24:395
770099993533,2cyclictest1135273-21kworker/u16:1+events_unbound22:35:165
770099993533,2cyclictest1135273-21kworker/u16:1+events_unbound22:16:235
770099993533,2cyclictest1037760-21kworker/u16:3+events_unbound21:50:275
770099993533,2cyclictest1037760-21kworker/u16:3+events_unbound21:39:275
770105993432,1cyclictest1004721-21diskmemload22:27:197
770105993429,4cyclictest1343273-21latency_hist23:28:087
770099993432,2cyclictest1343314-21kworker/u16:1+events_unbound23:42:205
770099993432,2cyclictest1234503-21kworker/u16:0+flush-8:023:47:595
770099993432,2cyclictest1210346-21kworker/u16:2+events_unbound22:44:125
770099993432,2cyclictest1161110-21kworker/u16:0+flush-8:022:29:445
770099993432,2cyclictest1135273-21kworker/u16:1+events_unbound23:00:355
770099993432,2cyclictest1135273-21kworker/u16:1+events_unbound22:19:245
770099993432,2cyclictest1113487-21kworker/u16:4+events_unbound22:09:035
770099993432,2cyclictest1113487-21kworker/u16:4+events_unbound21:56:115
770099993432,2cyclictest1016793-21kworker/u16:0+events_unbound21:34:005
770100993330,2cyclictest1210346-21kworker/u16:2+events_unbound23:18:206
770099993331,2cyclictest995094-21kworker/u16:1+events_unbound21:45:245
770099993331,2cyclictest1476414-21kworker/u16:3+events_unbound00:32:595
770099993331,2cyclictest1234503-21kworker/u16:0+events_unbound00:33:115
770099993331,2cyclictest1037760-21kworker/u16:3+events_unbound21:20:555
770099993230,2cyclictest995094-21kworker/u16:1+flush-8:021:14:285
770099993230,2cyclictest1113487-21kworker/u16:4+flush-8:022:00:435
770099993229,2cyclictest1135273-21kworker/u16:1+flush-8:023:13:155
76971323222,7sleep60-21swapper/619:06:386
770105993130,0cyclictest0-21swapper/721:08:237
77010599310,29cyclictest635-21systemd-journal22:33:027
770100993129,2cyclictest812663-21kworker/u16:1+flush-8:019:48:396
770099993129,2cyclictest1210346-21kworker/u16:2+flush-8:000:21:005
770099993129,2cyclictest1210346-21kworker/u16:2+events_unbound00:14:235
770099993129,2cyclictest1135273-21kworker/u16:1+events_unbound23:07:525
770100993028,2cyclictest1161110-21kworker/u16:0+flush-8:022:18:036
770095993027,2cyclictest1135273-21kworker/u16:1+flush-8:023:13:234
770105992928,0cyclictest0-21swapper/723:59:077
770105992823,4cyclictest1137738-21latency_hist22:03:087
770100992725,2cyclictest1234503-21kworker/u16:0+flush-8:000:28:316
770100992724,2cyclictest1210346-21kworker/u16:2+flush-8:000:33:276
770099992725,2cyclictest779614-21kworker/u16:2+flush-8:019:28:475
770099992725,2cyclictest779614-21kworker/u16:2+events_unbound21:00:475
770105992623,2cyclictest878753-21ntp_states19:58:327
770100992623,2cyclictest899295-21kworker/u16:1+flush-8:020:48:036
770105992524,0cyclictest0-21swapper/721:15:077
770099992523,2cyclictest779614-21kworker/u16:2+events_unbound19:39:135
770099992523,2cyclictest779614-21kworker/u16:2+events_unbound19:39:135
770099992522,2cyclictest899295-21kworker/u16:1+events_unbound20:48:205
770105992422,1cyclictest1379623-21ssh23:43:087
770105992422,1cyclictest0-21swapper/700:22:127
770105992421,2cyclictest124-21kswapd023:03:217
770105992420,2cyclictest1253616-21ssh22:48:287
770100992422,2cyclictest760303-21kworker/u16:0+flush-8:020:33:036
770099992422,2cyclictest779614-21kworker/u16:2+events_unbound20:04:185
770099992422,2cyclictest760303-21kworker/u16:0+events_unbound19:46:475
770105992322,0cyclictest0-21swapper/723:15:087
770105992322,0cyclictest0-21swapper/722:59:077
770105992321,1cyclictest1147559-21ssh22:03:527
77010599230,21cyclictest1706-21dockerd23:52:047
770100992321,2cyclictest760303-21kworker/u16:0+flush-8:020:08:336
770099992321,2cyclictest889473-21kworker/u16:4+events_unbound20:09:195
770105992221,0cyclictest0-21swapper/700:28:277
77010599220,20cyclictest1185393-21sshd-session22:21:477
770100992220,2cyclictest760303-21kworker/u16:0+flush-8:020:23:036
770100992220,2cyclictest1234503-21kworker/u16:0+flush-8:023:13:336
770099992220,2cyclictest860436-21kworker/u16:3+events_unbound19:57:475
770099992220,2cyclictest779614-21kworker/u16:2+flush-8:019:20:285
770105992120,0cyclictest0-21swapper/722:34:517
770105992120,0cyclictest0-21swapper/721:42:117
770105992119,1cyclictest1362401-21ssh23:33:287
770105992119,1cyclictest1172808-21ssh22:15:547
770099992119,2cyclictest779614-21kworker/u16:2+flush-8:020:46:195
770099992118,2cyclictest3386109-21kworker/u16:3+events_unbound19:10:205
770105992019,0cyclictest0-21swapper/722:11:597
770100992018,2cyclictest760303-21kworker/u16:0+events_unbound20:58:326
770099992018,2cyclictest779614-21kworker/u16:2+events_unbound19:52:565
770099992018,2cyclictest760303-21kworker/u16:0+flush-8:020:23:245
770099992018,2cyclictest760303-21kworker/u16:0+flush-8:020:23:245
770095992017,3cyclictest1210346-21kworker/u16:2+flush-8:022:43:234
770105991917,1cyclictest1064220-21ssh21:31:247
77010599190,17cyclictest1234-21snmpd22:53:277
77010599190,17cyclictest0-21swapper/719:38:297
77010599190,17cyclictest0-21swapper/719:38:297
770100991917,2cyclictest779614-21kworker/u16:2+flush-8:020:53:296
770100991917,2cyclictest1343314-21kworker/u16:1+flush-8:000:03:026
770100991916,2cyclictest1210346-21kworker/u16:2+flush-8:000:13:346
770100991916,2cyclictest1016793-21kworker/u16:0+flush-8:021:33:326
770099991917,2cyclictest937863-21kworker/u16:3+events_unbound20:37:185
770099991917,2cyclictest860436-21kworker/u16:3+flush-8:020:02:275
770099991917,2cyclictest779614-21kworker/u16:2+events_unbound20:42:115
770099991917,2cyclictest760303-21kworker/u16:0+events_unbound20:28:485
770105991816,1cyclictest0-21swapper/721:51:597
77010599180,17cyclictest1234-21snmpd21:04:337
77010599180,17cyclictest1234-21snmpd21:04:337
770100991815,2cyclictest760303-21kworker/u16:0+flush-8:020:23:276
770100991815,2cyclictest760303-21kworker/u16:0+flush-8:020:23:276
770099991816,2cyclictest779614-21kworker/u16:2+events_unbound20:54:495
770099991815,2cyclictest779614-21kworker/u16:2+events_unbound19:33:105
770105991714,2cyclictest1234-21snmpd00:14:267
770105991712,4cyclictest1234-21snmpd19:46:087
770100991715,2cyclictest760303-21kworker/u16:0+flush-8:019:33:376
770100991715,2cyclictest1210346-21kworker/u16:2+events_unbound00:23:386
770099991715,2cyclictest995094-21kworker/u16:1+events_unbound21:06:195
770099991715,2cyclictest995094-21kworker/u16:1+events_unbound21:06:195
770105991615,0cyclictest0-21swapper/700:35:357
770105991614,1cyclictest1344588-21ssh23:28:237
770105991614,1cyclictest1037817-21ssh21:18:307
770105991613,2cyclictest1232811-21ssh22:39:567
770100991614,2cyclictest899295-21kworker/u16:1+flush-8:020:48:226
770100991614,2cyclictest812663-21kworker/u16:1+events_unbound19:28:216
770099991614,2cyclictest779614-21kworker/u16:2+events_unbound19:17:185
770099991613,2cyclictest899295-21kworker/u16:1+events_unbound20:18:115
77009599160,15cyclictest0-21swapper/419:08:294
77010599157,7cyclictest6032-21gmain19:23:237
770105991513,1cyclictest1388767-21sh23:43:347
770105991513,1cyclictest1329457-21ssh23:19:597
770105991510,4cyclictest821865-21latency_hist19:33:087
77010599150,13cyclictest0-21swapper/723:53:307
770100991513,2cyclictest995094-21kworker/u16:1+events_unbound21:28:326
770100991513,2cyclictest3386109-21kworker/u16:3+events_unbound19:18:286
770100991513,2cyclictest1234503-21kworker/u16:0+flush-8:022:58:246
770100991512,2cyclictest779614-21kworker/u16:2+flush-8:019:38:346
770100991512,2cyclictest779614-21kworker/u16:2+flush-8:019:38:346
77009599150,14cyclictest0-21swapper/400:13:144
77010599145,8cyclictest6514-21gmain20:18:357
770105991413,0cyclictest0-21swapper/719:48:337
770105991412,1cyclictest1096491-21ssh21:43:297
770105991412,1cyclictest0-21swapper/719:53:337
770105991412,1cyclictest0-21swapper/719:13:347
770100991413,1cyclictest0-21swapper/623:47:546
770100991413,1cyclictest0-21swapper/623:31:586
770100991413,1cyclictest0-21swapper/622:40:066
770100991412,2cyclictest1234503-21kworker/u16:0+flush-8:000:08:296
770100991410,4cyclictest0-21swapper/623:05:296
77010099140,14cyclictest0-21swapper/622:00:226
77010099140,14cyclictest0-21swapper/621:42:336
77010099140,14cyclictest0-21swapper/621:17:106
770099991412,2cyclictest3386109-21kworker/u16:3+events_unbound19:25:195
770095991413,1cyclictest0-21swapper/421:13:404
77009599140,1cyclictest0-21swapper/421:32:454
77009599140,1cyclictest0-21swapper/420:18:314
77009599140,14cyclictest0-21swapper/423:29:534
77009599140,14cyclictest0-21swapper/423:05:174
77009599140,14cyclictest0-21swapper/422:18:284
77009599140,14cyclictest0-21swapper/422:08:514
77009599140,14cyclictest0-21swapper/421:58:264
77009599140,14cyclictest0-21swapper/421:24:424
77009599140,14cyclictest0-21swapper/400:03:314
77010599139,3cyclictest1234-21snmpd20:56:577
77010599138,4cyclictest1053074-21latency_hist21:28:087
77010599137,4cyclictest6514-21gmain20:43:277
770105991312,0cyclictest0-21swapper/722:43:357
770105991312,0cyclictest0-21swapper/719:33:347
770105991312,0cyclictest0-21swapper/700:11:047
770105991312,0cyclictest0-21swapper/700:03:567
77010599130,1cyclictest0-21swapper/720:03:307
77010599130,11cyclictest1234-21snmpd20:34:457
770100991312,1cyclictest0-21swapper/622:10:286
770100991312,1cyclictest0-21swapper/620:13:296
770100991311,2cyclictest937863-21kworker/u16:3+flush-8:020:38:336
770100991311,2cyclictest812663-21kworker/u16:1+flush-8:020:03:346
770100991311,2cyclictest1037760-21kworker/u16:3+flush-8:022:18:236
770100991311,2cyclictest1016793-21kworker/u16:0+flush-8:021:48:216
770100991310,2cyclictest1210346-21kworker/u16:2+flush-8:022:53:236
770100991310,2cyclictest1161110-21kworker/u16:0+flush-8:022:28:226
77010099130,13cyclictest0-21swapper/621:26:006
770095991312,1cyclictest0-21swapper/422:49:224
77010599129,2cyclictest1234-21snmpd23:11:587
77010599129,2cyclictest1234-21snmpd23:11:587
77010599129,2cyclictest1234-21snmpd20:59:427
77010599128,3cyclictest1234-21snmpd21:54:387
77010599128,3cyclictest1234-21snmpd20:14:267
77010599128,3cyclictest1234-21snmpd20:11:177
77010599125,6cyclictest6032-21gmain20:28:277
77010099127,4cyclictest784586-21tr19:13:256
770100991211,1cyclictest0-21swapper/622:51:186
770100991210,2cyclictest1234503-21kworker/u16:0+flush-8:023:08:386
770100991210,2cyclictest1234503-21kworker/u16:0+flush-8:023:08:386
77010099120,11cyclictest1355850-21cpu23:33:206
770095991210,2cyclictest1135273-21kworker/u16:1+flush-8:022:58:334
77009599120,1cyclictest0-21swapper/419:15:164
77010599117,3cyclictest1234-21snmpd20:49:577
77010599117,3cyclictest1234-21snmpd20:39:367
77010599114,6cyclictest6514-21gmain20:23:317
77010599114,6cyclictest6514-21gmain20:23:317
77010099118,3cyclictest1343314-21kworker/u16:1+events_unbound23:38:336
77010099118,2cyclictest996853-21kthreadcore21:03:246
77010099118,2cyclictest996853-21kthreadcore21:03:246
77010099110,4cyclictest1118029-21kthreadcore21:53:276
77010099110,3cyclictest1332057-21cat23:23:216
77010099110,10cyclictest946006-21missed_timers20:33:286
77009599118,2cyclictest1013555-21needreboot21:08:334
770095991110,1cyclictest0-21swapper/422:27:554
770095991110,1cyclictest0-21swapper/421:48:494
770095991110,1cyclictest0-21swapper/421:40:284
770095991110,1cyclictest0-21swapper/420:51:544
77010599109,0cyclictest0-21swapper/700:23:177
77010599107,2cyclictest1234-21snmpd19:10:287
77010599106,3cyclictest1234-21snmpd19:20:107
77010099108,2cyclictest1210346-21kworker/u16:2+events_unbound22:43:216
77010099107,2cyclictest0-21swapper/619:23:246
77010099106,3cyclictest867008-21kthreadcore19:53:286
77010099106,3cyclictest1144036-21kthreadcore22:03:276
77010099105,4cyclictest1187235-21tune2fs22:23:216
77010099100,9cyclictest1411816-21kthreadcore23:53:286
77010099100,9cyclictest1033830-21kthreadcore21:18:256
77010099100,9cyclictest1012630-21cut21:08:326
77010099100,4cyclictest1465608-21cat00:18:236
77010099100,3cyclictest841480-21/usr/sbin/munin19:43:296
77009599108,2cyclictest1016793-21kworker/u16:0+flush-8:021:53:194
77009599106,3cyclictest832645-21cat19:38:214
77009599106,3cyclictest832645-21cat19:38:214
77009599106,3cyclictest1380893-21cat23:43:234
77009599106,3cyclictest1163266-21cat22:13:224
7701009995,3cyclictest771101-21cat19:08:236
7701009990,8cyclictest1089926-21grep21:43:216
7701009990,3cyclictest870642-21tr19:58:196
7700959998,1cyclictest0-21swapper/423:43:084
7700959998,1cyclictest0-21swapper/423:33:284
7700959998,1cyclictest0-21swapper/422:38:014
7700959997,2cyclictest779614-21kworker/u16:2+flush-8:019:48:294
7700959996,2cyclictest994040-21needreboot20:58:314
7700959996,2cyclictest0-21swapper/421:18:264
7700959994,4cyclictest842255-21cat19:43:224
7700959994,4cyclictest1485292-21ntpq00:23:324
7700959994,4cyclictest1332941-21grep23:23:254
7700959992,2cyclictest1422541-21kthreadcore23:58:304
7700959990,8cyclictest0-21swapper/421:43:294
1208499290,1sleep4631rcuc/422:29:484
7701009980,7cyclictest1428512-21/usr/sbin/munin00:03:236
7701009980,2cyclictest1392722-21dnf23:48:216
7700959986,1cyclictest0-21swapper/420:53:194
7700959986,1cyclictest0-21swapper/420:28:184
7700959985,2cyclictest1404822-21df_inode23:53:204
7700959985,2cyclictest0-21swapper/420:13:254
7700959984,3cyclictest1072209-21kthreadcore21:33:284
7700959983,4cyclictest866604-21tr19:53:274
7700959983,4cyclictest826305-21grep19:33:274
7700959983,4cyclictest802285-21grep19:18:374
7700959983,4cyclictest1506766-21cut00:33:274
7700959983,4cyclictest1491973-21cut00:28:274
7700959983,4cyclictest1325052-21cut23:18:274
7700959983,4cyclictest1267904-21expr22:53:364
7700959983,4cyclictest1142673-21cut22:03:264
7700959975,1cyclictest0-21swapper/423:48:254
7700959975,1cyclictest0-21swapper/420:38:274
7700959975,1cyclictest0-21swapper/420:08:214
7700959975,1cyclictest0-21swapper/420:03:244
7700959975,1cyclictest0-21swapper/400:18:204
7700959974,2cyclictest808780-21kthreadcore19:23:294
7700959973,3cyclictest938746-21sed20:33:234
7700959973,3cyclictest814733-21cut19:28:264
7700959973,3cyclictest1441316-21grep00:08:244
7700959973,3cyclictest1295615-21sort23:08:224
7700959973,3cyclictest1295615-21sort23:08:224
7700959973,3cyclictest1226604-21cat22:38:274
7700959972,4cyclictest996328-21sed21:03:234
7700959972,4cyclictest996328-21sed21:03:234
7700959972,4cyclictest957844-21cat20:43:234
7700959972,4cyclictest921928-21cut20:23:274
7700959972,4cyclictest921928-21cut20:23:274
7700959972,4cyclictest870434-21cpu19:58:194
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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