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2026-08-14 - 00:41
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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 Thu Aug 13, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90381925646,7sleep40-21swapper/407:06:404
9031752485,32sleep70-21swapper/707:03:387
89459924534,7sleep50-21swapper/507:03:045
904212994340,2cyclictest946544-21kworker/u16:1+flush-8:007:28:016
904203994341,2cyclictest1346942-21kworker/u16:2+flush-8:010:33:324
904203994037,2cyclictest1410659-21kworker/u16:4+flush-8:011:19:214
904203993836,2cyclictest1155869-21kworker/u16:5+events_unbound09:14:134
904203993835,2cyclictest1074336-21kworker/u16:3+events_unbound09:23:024
904203993533,2cyclictest1016356-21kworker/u16:2+events_unbound09:28:014
904203993432,2cyclictest946544-21kworker/u16:1+flush-8:008:03:014
904212993331,2cyclictest1188075-21kworker/u16:1+events_unbound09:53:246
904203993331,2cyclictest1599225-21kworker/u16:5+events_unbound12:26:094
904203993331,2cyclictest1410659-21kworker/u16:4+events_unbound12:05:244
904203993331,2cyclictest1261138-21kworker/u16:3+flush-8:009:54:524
904203993331,2cyclictest1175634-21kworker/u16:0+events_unbound10:12:564
904217993226,5cyclictest648-21systemd-journal10:16:537
904207993229,2cyclictest1188075-21kworker/u16:1+flush-8:010:18:295
904203993230,2cyclictest1631195-21kworker/u16:3+events_unbound12:34:454
904203993230,2cyclictest1310900-21kworker/u16:4+events_unbound10:20:534
904203993129,2cyclictest1520007-21kworker/u16:0+events_unbound12:08:364
904203993129,2cyclictest1310900-21kworker/u16:4+events_unbound10:44:574
904203993129,2cyclictest1016356-21kworker/u16:2+flush-8:009:47:524
904203993128,2cyclictest1384699-21kworker/u16:1+events_unbound11:58:074
90376723121,7sleep60-21swapper/607:05:536
904217993028,1cyclictest0-21swapper/707:13:057
904212993027,2cyclictest1188075-21kworker/u16:1+flush-8:010:18:166
904207993028,2cyclictest1410659-21kworker/u16:4+flush-8:011:53:295
904203993028,2cyclictest1530629-21kworker/u16:3+events_unbound11:50:124
904203993028,2cyclictest1214453-21kworker/u16:3+events_unbound09:41:564
904203993028,2cyclictest1016356-21kworker/u16:2+events_unbound09:30:574
904212992927,2cyclictest1188075-21kworker/u16:1+events_unbound10:23:246
904212992926,2cyclictest1410659-21kworker/u16:4+events_unbound11:28:156
904203992927,2cyclictest956399-21kworker/u16:2+events_unbound07:43:324
904203992927,2cyclictest1410659-21kworker/u16:4+flush-8:011:06:334
904203992927,2cyclictest1408474-21kworker/u16:0+events_unbound10:54:284
904203992927,2cyclictest1408474-21kworker/u16:0+events_unbound10:54:284
904212992824,3cyclictest1175634-21kworker/u16:0+events_unbound09:23:146
904203992826,2cyclictest1471238-21kworker/u16:0+events_unbound11:32:524
904203992826,2cyclictest1188075-21kworker/u16:1+events_unbound10:25:294
904203992826,2cyclictest1016356-21kworker/u16:2+events_unbound09:49:124
904217992721,5cyclictest648-21systemd-journal09:03:017
904217992721,5cyclictest648-21systemd-journal09:03:017
904203992725,2cyclictest1520007-21kworker/u16:0+flush-8:011:44:164
904203992725,2cyclictest1520007-21kworker/u16:0+events_unbound11:41:404
904203992725,2cyclictest1471238-21kworker/u16:0+flush-8:011:25:194
904203992725,2cyclictest1384699-21kworker/u16:1+flush-8:010:59:004
904203992725,2cyclictest1346942-21kworker/u16:2+events_unbound10:32:134
904203992725,2cyclictest1016356-21kworker/u16:2+events_unbound10:13:414
13570472270,1chrt1357052-21sh10:33:247
904217992625,0cyclictest0-21swapper/711:33:297
904207992624,2cyclictest1410659-21kworker/u16:4+events_unbound12:03:175
904207992624,2cyclictest1410659-21kworker/u16:4+events_unbound11:13:145
904207992623,2cyclictest1102253-21kworker/u16:1+flush-8:008:48:165
904203992624,2cyclictest839634-21kworker/u16:4+flush-8:007:33:284
904203992624,2cyclictest1384699-21kworker/u16:1+events_unbound10:51:204
904203992624,2cyclictest1131857-21kworker/u16:4+flush-8:009:07:564
904203992624,2cyclictest1016356-21kworker/u16:2+events_unbound10:00:284
904212992523,2cyclictest1074336-21kworker/u16:3+events_unbound08:38:176
904203992523,2cyclictest1496852-21kworker/u16:2+flush-8:011:35:334
904203992523,2cyclictest1410659-21kworker/u16:4+events_unbound12:16:334
904203992523,2cyclictest1386505-21kworker/u16:5+events_unbound11:10:044
904203992523,2cyclictest1384699-21kworker/u16:1+flush-8:011:15:254
904203992523,2cyclictest1175634-21kworker/u16:0+events_unbound09:33:414
904203992523,2cyclictest1175634-21kworker/u16:0+events_unbound09:33:414
904203992523,2cyclictest1151118-21kworker/u16:0+events_unbound09:10:534
904203992422,2cyclictest1615624-21kworker/u16:0+events_unbound12:22:444
904203992422,2cyclictest1346942-21kworker/u16:2+flush-8:010:39:454
904203992321,2cyclictest946544-21kworker/u16:1+events_unbound07:25:374
904203992221,1cyclictest1175634-21kworker/u16:0+events_unbound10:04:134
904203992220,2cyclictest1384699-21kworker/u16:1+events_unbound11:53:514
904217992120,0cyclictest0-21swapper/709:58:157
904217992120,0cyclictest0-21swapper/708:33:167
904203992119,2cyclictest1628709-21kworker/u16:2+events_unbound12:30:594
904203992017,2cyclictest839634-21kworker/u16:4+events_unbound07:28:154
904217991913,5cyclictest1652131-21ssh12:33:277
904212991917,2cyclictest1016356-21kworker/u16:2+events_unbound09:43:286
904207991917,1cyclictest903675-21kworker/u16:2+flush-8:007:08:185
904207991915,3cyclictest1188075-21kworker/u16:1+flush-8:009:28:155
904217991816,1cyclictest1141191-21diskmemload11:48:307
904217991812,5cyclictest648-21systemd-journal09:53:027
904217991812,5cyclictest1594049-21latency_hist12:13:017
90421799180,16cyclictest1615402-21sh12:18:257
904212991715,2cyclictest1016356-21kworker/u16:2+events_unbound08:33:146
904203991715,2cyclictest994955-21kworker/u16:0+flush-8:007:53:274
904203991715,2cyclictest839634-21kworker/u16:4+flush-8:008:03:204
904203991715,2cyclictest1074336-21kworker/u16:3+flush-8:008:38:494
904217991613,2cyclictest1302-21snmpd09:09:007
904217991613,2cyclictest0-21swapper/709:13:027
904217991612,3cyclictest1302-21snmpd07:54:567
904212991614,2cyclictest946544-21kworker/u16:1+flush-8:007:59:326
904212991614,2cyclictest839634-21kworker/u16:4+events_unbound08:03:146
904212991614,2cyclictest1175634-21kworker/u16:0+flush-8:010:28:296
90421299160,2cyclictest905989-21kthreadcore07:08:186
904207991614,2cyclictest1410659-21kworker/u16:4+events_unbound11:23:255
904203991613,2cyclictest839634-21kworker/u16:4+flush-8:007:38:204
904217991513,1cyclictest1435621-21ssh11:08:067
904217991513,1cyclictest0-21swapper/711:38:137
904217991513,1cyclictest0-21swapper/709:18:267
90421799150,13cyclictest1398369-21latency_hist10:53:017
904212991513,2cyclictest1188075-21kworker/u16:1+events_unbound10:08:296
904212991511,3cyclictest1423520-21cpuspeed_turbos11:03:126
90421299150,1cyclictest0-21swapper/610:15:366
904207991513,2cyclictest839634-21kworker/u16:4+flush-8:007:38:335
904207991513,2cyclictest1372153-21kworker/u16:0+events_unbound10:43:295
90420799151,13cyclictest0-21swapper/509:18:165
90420799150,1cyclictest0-21swapper/512:15:395
90420799150,1cyclictest0-21swapper/511:03:175
904203991513,2cyclictest839634-21kworker/u16:4+events_unbound07:13:184
90421799149,4cyclictest1630760-21latency_hist12:28:017
90421799149,4cyclictest1102280-21latency_hist08:48:017
904217991413,0cyclictest0-21swapper/711:04:367
904217991413,0cyclictest0-21swapper/709:42:377
904217991411,2cyclictest1302-21snmpd11:26:187
90421799140,13cyclictest0-21swapper/708:48:247
904212991413,1cyclictest0-21swapper/612:14:486
904212991412,2cyclictest956399-21kworker/u16:2+events_unbound07:43:166
90421299140,14cyclictest0-21swapper/612:25:036
90420799149,4cyclictest1122963-21cat08:58:175
90420799149,4cyclictest1122963-21cat08:58:175
904207991413,1cyclictest1175634-21kworker/u16:0+flush-8:010:17:125
904207991413,1cyclictest0-21swapper/510:50:215
904207991413,1cyclictest0-21swapper/510:28:365
904207991413,1cyclictest0-21swapper/509:47:275
904207991412,2cyclictest1074336-21kworker/u16:3+events_unbound09:08:155
904207991411,2cyclictest1175634-21kworker/u16:0+flush-8:010:08:205
904207991411,1cyclictest0-21swapper/510:27:015
90420799140,14cyclictest0-21swapper/511:09:075
90421799139,3cyclictest1302-21snmpd10:39:327
90421799139,3cyclictest1302-21snmpd10:07:227
90421799139,3cyclictest1302-21snmpd09:28:587
90421799139,3cyclictest1302-21snmpd08:02:207
90421799138,4cyclictest1349357-21latency_hist10:33:027
904217991312,0cyclictest0-21swapper/711:53:267
90421799130,3cyclictest1580603-21ssh12:05:367
90421299139,3cyclictest1522133-21cat11:43:146
90421299133,4cyclictest1565571-21cut11:58:236
904212991312,1cyclictest0-21swapper/611:36:486
904212991312,1cyclictest0-21swapper/611:26:146
904212991312,1cyclictest0-21swapper/611:14:346
904212991312,1cyclictest0-21swapper/608:58:216
904212991312,1cyclictest0-21swapper/608:58:216
904212991311,2cyclictest1555386-21kworker/u16:2+events_unbound12:03:256
904212991310,2cyclictest839634-21kworker/u16:4+flush-8:008:28:336
90421299130,1cyclictest0-21swapper/611:42:386
90421299130,1cyclictest0-21swapper/609:28:476
90421299130,13cyclictest0-21swapper/611:55:536
90421299130,13cyclictest0-21swapper/610:00:096
90421299130,13cyclictest0-21swapper/609:22:576
90421299130,13cyclictest0-21swapper/609:10:106
904207991312,1cyclictest0-21swapper/512:31:255
904207991312,1cyclictest0-21swapper/509:50:365
904207991312,1cyclictest0-21swapper/509:13:425
904207991312,1cyclictest0-21swapper/508:09:135
904207991312,1cyclictest0-21swapper/507:46:125
904207991310,3cyclictest1496852-21kworker/u16:2+flush-8:011:43:145
90420799130,13cyclictest0-21swapper/512:08:335
90420799130,13cyclictest0-21swapper/509:25:515
90420799130,13cyclictest0-21swapper/507:52:125
90420799130,13cyclictest0-21swapper/507:23:495
90420799130,0cyclictest0-21swapper/512:24:485
90420799130,0cyclictest0-21swapper/508:43:545
904203991311,2cyclictest1034142-21kworker/u16:0+flush-8:008:15:124
90420399130,13cyclictest0-21swapper/408:18:184
90421799129,2cyclictest1302-21snmpd08:54:217
90421799129,2cyclictest1302-21snmpd08:23:267
90421799129,2cyclictest1302-21snmpd08:16:447
90421799128,3cyclictest1302-21snmpd07:44:377
90421799127,4cyclictest5965-21gmain12:28:237
90421799126,5cyclictest6233-21gvfs-afc-volume11:28:187
904217991212,0cyclictest0-21swapper/711:14:517
90421799120,2cyclictest1383026-21ssh10:43:257
90421799120,2cyclictest1313402-21ssh10:18:147
90421799120,2cyclictest1211479-21ssh09:33:257
90421799120,2cyclictest1211479-21ssh09:33:257
90421799120,10cyclictest1334685-21ssh10:23:397
90421299129,2cyclictest1112212-21kworker/u16:0+flush-8:008:53:276
90421299129,2cyclictest1074-21lldpd08:15:516
90421299128,3cyclictest949555-21kthreadcore07:28:206
904212991211,1cyclictest0-21swapper/611:13:006
904212991211,1cyclictest0-21swapper/610:40:406
904212991210,2cyclictest1016356-21kworker/u16:2+events_unbound08:43:266
90421299120,3cyclictest1391116-21cut10:48:206
90421299120,1cyclictest0-21swapper/612:37:496
90421299120,1cyclictest0-21swapper/611:50:036
90421299120,1cyclictest0-21swapper/611:18:506
90421299120,1cyclictest0-21swapper/609:35:436
90421299120,1cyclictest0-21swapper/609:35:436
90421299120,12cyclictest0-21swapper/610:36:256
90421299120,0cyclictest0-21swapper/610:53:366
90421299120,0cyclictest0-21swapper/610:53:366
904207991211,1cyclictest0-21swapper/511:58:285
904207991211,1cyclictest0-21swapper/510:53:025
904207991211,1cyclictest0-21swapper/510:53:025
904207991211,1cyclictest0-21swapper/508:41:145
904207991211,1cyclictest0-21swapper/507:38:005
90420799120,11cyclictest0-21swapper/509:38:145
90420799120,0cyclictest0-21swapper/508:04:585
904203991210,2cyclictest1016356-21kworker/u16:2+events_unbound08:52:124
904203991210,1cyclictest9135472sleep407:09:434
90421799118,2cyclictest913800-21munin-run07:13:017
90421799118,2cyclictest1302-21snmpd12:00:587
90421799118,2cyclictest1302-21snmpd11:21:097
90421799118,2cyclictest1302-21snmpd10:55:327
90421799118,2cyclictest1302-21snmpd10:55:327
90421799118,2cyclictest1302-21snmpd10:09:557
90421799118,2cyclictest1302-21snmpd09:49:227
90421799118,2cyclictest1302-21snmpd08:18:327
90421799118,2cyclictest1302-21snmpd08:07:477
90421799118,2cyclictest1302-21snmpd07:50:057
90421799118,2cyclictest1302-21snmpd07:39:497
90421799118,2cyclictest1302-21snmpd07:26:167
90421799118,2cyclictest0-21swapper/709:47:367
90421799117,3cyclictest1302-21snmpd08:41:037
90421799117,3cyclictest1302-21snmpd07:21:257
90421799115,5cyclictest6233-21gvfs-afc-volume08:28:267
90421799113,6cyclictest1256-21tuned-ppd07:33:287
904217991110,0cyclictest0-21swapper/709:23:277
90421799110,10cyclictest1302-21snmpd07:28:467
90421299119,2cyclictest903675-21kworker/u16:2+events_unbound07:18:216
90421299116,4cyclictest1132435-21tune2fs09:03:146
90421299111,9cyclictest0-21swapper/608:08:226
904212991110,1cyclictest0-21swapper/612:23:006
904212991110,1cyclictest0-21swapper/608:19:056
904212991110,1cyclictest0-21swapper/607:57:396
904212991110,1cyclictest0-21swapper/607:34:096
90421299110,3cyclictest974941-21ntpq07:38:276
90421299110,3cyclictest1416098-21cut10:58:216
90421299110,10cyclictest914341-21fschecks_time07:13:036
90421299110,10cyclictest1218618-21kthreadcore09:38:206
90420799119,2cyclictest913761-21kworker/u16:0+events_unbound07:18:175
90420799117,3cyclictest1064555-21cat08:28:175
904207991110,1cyclictest0-21swapper/510:41:505
904207991110,1cyclictest0-21swapper/509:55:205
904207991110,1cyclictest0-21swapper/509:03:375
904207991110,1cyclictest0-21swapper/508:33:115
904207991110,1cyclictest0-21swapper/508:19:195
90420799110,0cyclictest0-21swapper/507:53:465
90420799110,0cyclictest0-21swapper/507:32:015
90420399119,2cyclictest946544-21kworker/u16:1+flush-8:007:52:574
90420399119,2cyclictest946544-21kworker/u16:1+events_unbound08:12:124
90420399119,2cyclictest1112212-21kworker/u16:0+events_unbound08:53:264
904203991110,1cyclictest0-21swapper/408:59:084
904203991110,1cyclictest0-21swapper/408:59:084
904203991110,1cyclictest0-21swapper/408:45:444
904203991110,1cyclictest0-21swapper/407:19:394
90420399110,11cyclictest0-21swapper/408:23:404
90421799106,3cyclictest1302-21snmpd12:13:107
90421799106,3cyclictest1302-21snmpd09:06:157
90421799105,4cyclictest1420753-21crond10:59:007
90421799104,5cyclictest6233-21gvfs-afc-volume08:08:207
90421799100,1cyclictest0-21swapper/711:43:177
90421299109,1cyclictest0-21swapper/610:44:566
90421299109,1cyclictest0-21swapper/609:48:576
90421299109,1cyclictest0-21swapper/607:52:176
90421299106,3cyclictest1054841-21cat08:23:166
90421299104,5cyclictest0-21swapper/612:28:196
90421299100,9cyclictest1285349-21sed10:03:306
90420799109,1cyclictest1155869-21kworker/u16:5+events_unbound09:36:295
90420799109,1cyclictest1155869-21kworker/u16:5+events_unbound09:36:295
90420799109,1cyclictest0-21swapper/512:36:285
90420799109,1cyclictest0-21swapper/511:18:345
90420799109,1cyclictest0-21swapper/510:36:005
90420799109,1cyclictest0-21swapper/509:58:295
90420799109,1cyclictest0-21swapper/508:23:345
90420799107,2cyclictest1384699-21kworker/u16:1+flush-8:011:38:195
90420399107,2cyclictest1053450-21kworker/u16:1+flush-8:008:28:284
9042129990,3cyclictest1156360-21kthreadcore09:13:196
9042079998,1cyclictest0-21swapper/510:59:305
9042079998,1cyclictest0-21swapper/508:17:445
9042079995,3cyclictest1121314-21grep08:53:295
9042079990,8cyclictest0-21swapper/511:48:215
9042129985,2cyclictest0-21swapper/612:08:166
9042129983,4cyclictest1103546-21irqcore08:48:166
9042079984,3cyclictest979-21gdbus07:15:375
9042079983,4cyclictest1285036-21cut10:03:285
9042079980,7cyclictest0-21swapper/511:33:125
9042079980,4cyclictest1607023-21cpuspeed_turbos12:18:135
9042039987,1cyclictest0-21swapper/408:35:294
9042079975,1cyclictest0-21swapper/507:58:145
9042079974,2cyclictest1486091-21kthreadcore11:28:175
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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