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2026-07-29 - 19:26
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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
Characteristics of the highest latencies:
System rackcslot2.osadl.org (updated Wed Jul 29, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2301027158,8sleep00-21swapper/007:05:260
283562690,0sleep10-21swapper/109:38:171
2290226855,9sleep10-21swapper/107:04:181
23468993210,22cyclictest0-21swapper/012:19:390
23468993110,0cyclictest0-21swapper/011:25:020
2346999306,12cyclictest0-21swapper/111:33:301
23469993010,2cyclictest0-21swapper/109:19:541
2346999275,21cyclictest0-21swapper/109:13:111
23469992726,0cyclictest0-21swapper/111:31:261
2346999272,16cyclictest0-21swapper/110:57:371
2346999271,4cyclictest0-21swapper/111:58:371
23469992710,1cyclictest0-21swapper/110:45:571
23468992725,1cyclictest0-21swapper/010:47:280
23469992611,7cyclictest0-21swapper/109:31:221
23469992523,1cyclictest30519-21ssh11:48:481
23469992510,5cyclictest0-21swapper/109:13:371
23468992520,4cyclictest951-21apache210:30:080
2346999242,14cyclictest0-21swapper/110:38:361
2346999242,14cyclictest0-21swapper/110:38:361
23469992417,5cyclictest0-21swapper/112:10:261
23468992423,0cyclictest0-21swapper/012:10:090
23468992421,3cyclictest968-21apache211:11:360
23468992410,7cyclictest0-21swapper/011:38:370
23469992316,7cyclictest890-21kworker/1:212:21:021
23468992321,1cyclictest770-21irqbalance09:42:480
23468992320,0cyclictest0-21swapper/010:59:480
23468992319,3cyclictest951-21apache210:16:190
23468992312,7cyclictest968-21apache211:05:420
23468992310,8cyclictest0-21swapper/009:23:340
2346899230,4cyclictest0-21swapper/012:14:350
2346999227,8cyclictest0-21swapper/111:08:301
23469992221,1cyclictest231ktimersoftd/108:57:151
23469992220,1cyclictest8804-21ntp_states12:03:351
23469992213,4cyclictest231ktimersoftd/112:37:131
23469992211,6cyclictest5014-21diskmemload10:04:251
23469992210,6cyclictest0-21swapper/110:30:091
23469992210,5cyclictest0-21swapper/111:03:591
23469992210,2cyclictest0-21swapper/111:13:331
2346999220,7cyclictest0-21swapper/111:18:361
23468992222,0cyclictest0-21swapper/009:52:440
23468992216,2cyclictest0-21swapper/008:13:340
23468992215,2cyclictest968-21apache212:36:460
2346999215,8cyclictest0-21swapper/108:38:321
23469992121,0cyclictest0-21swapper/107:52:151
23469992120,1cyclictest0-21swapper/108:53:091
23469992119,1cyclictest705-21ntpd12:24:591
23469992116,4cyclictest18670-21munin-node08:20:591
23469992116,3cyclictest23466-21cyclictest10:18:281
23469992115,3cyclictest951-21apache210:26:211
23469992115,2cyclictest951-21apache211:27:081
23469992113,5cyclictest0-21swapper/109:03:321
23469992110,5cyclictest0-21swapper/110:58:311
23469992110,5cyclictest0-21swapper/109:03:181
23469992110,4cyclictest0-21swapper/109:38:311
23469992110,4cyclictest0-21swapper/107:53:311
2346899215,8cyclictest0-21swapper/010:18:280
2346899213,12cyclictest0-21swapper/009:58:350
23468992118,2cyclictest802-21apache208:35:170
23468992113,2cyclictest0-21swapper/009:22:110
23468992110,7cyclictest0-21swapper/010:40:000
23468992110,7cyclictest0-21swapper/010:40:000
23468992110,6cyclictest968-21apache209:08:270
23468992110,5cyclictest0-21swapper/009:43:340
23468992110,4cyclictest0-21swapper/009:34:530
2346999207,6cyclictest0-21swapper/110:13:291
23469992017,2cyclictest31369-21apache207:11:361
23469992013,5cyclictest100150irq/106-eth1-rx07:30:351
23469992011,5cyclictest6125-21unixbench_singl07:43:381
2346999201,15cyclictest0-21swapper/109:46:561
23469992010,6cyclictest0-21swapper/112:13:311
23469992010,5cyclictest0-21swapper/109:52:441
23469992010,5cyclictest0-21swapper/107:58:321
2346999200,14cyclictest0-21swapper/110:48:291
2346899203,11cyclictest0-21swapper/009:14:270
23468992012,5cyclictest0-21swapper/010:23:310
23468992010,5cyclictest0-21swapper/011:57:330
23468992010,5cyclictest0-21swapper/007:38:300
23468992010,3cyclictest0-21swapper/010:13:180
2346899200,13cyclictest0-21swapper/011:58:390
2346999193,14cyclictest0-21swapper/107:18:341
2346999192,9cyclictest0-21swapper/112:29:241
23469991913,5cyclictest951-21apache208:03:301
2346999191,1cyclictest0-21swapper/109:25:081
23469991911,5cyclictest18670-21munin-node11:41:401
23469991910,6cyclictest0-21swapper/109:53:281
23469991910,3cyclictest0-21swapper/109:58:301
23469991910,3cyclictest0-21swapper/108:23:391
23469991910,2cyclictest0-21swapper/107:13:301
23469991910,0cyclictest0-21swapper/111:46:361
2346899199,5cyclictest5014-21diskmemload09:54:390
2346899195,9cyclictest0-21swapper/007:08:350
2346899194,8cyclictest0-21swapper/011:48:290
2346899191,9cyclictest0-21swapper/011:43:300
23468991918,1cyclictest0-21swapper/011:34:530
23468991910,6cyclictest0-21swapper/010:36:100
23468991910,4cyclictest0-21swapper/010:53:350
23468991910,3cyclictest0-21swapper/012:03:300
23468991910,3cyclictest0-21swapper/011:13:370
23468991910,2cyclictest0-21swapper/012:32:130
2346999185,5cyclictest0-21swapper/107:38:301
2346999184,9cyclictest29679-21perf08:48:181
2346999184,9cyclictest29679-21perf08:48:181
23469991816,1cyclictest23466-21cyclictest11:53:321
23469991812,1cyclictest0-21swapper/108:15:081
23469991810,3cyclictest0-21swapper/108:33:301
2346899188,9cyclictest0-21swapper/008:18:320
2346899185,9cyclictest0-21swapper/007:58:370
23468991811,3cyclictest14842-21ssh10:03:290
23468991811,1cyclictest0-21swapper/009:08:150
23468991810,6cyclictest0-21swapper/011:19:310
23468991810,6cyclictest0-21swapper/010:50:240
23468991810,5cyclictest0-21swapper/008:23:360
23468991810,4cyclictest0-21swapper/012:23:360
23468991810,4cyclictest0-21swapper/008:28:340
23468991810,2cyclictest0-21swapper/007:43:300
23469991710,3cyclictest0-21swapper/108:28:351
23469991710,3cyclictest0-21swapper/108:08:361
2346899177,7cyclictest0-21swapper/008:43:340
2346899177,7cyclictest0-21swapper/008:43:340
2346899173,7cyclictest0-21swapper/007:48:300
2346899172,8cyclictest0-21swapper/007:53:380
2346899172,8cyclictest0-21swapper/007:18:310
2346899171,6cyclictest0-21swapper/008:03:330
23468991713,2cyclictest14158-21/usr/sbin/munin11:28:310
23468991712,4cyclictest24479-21snmpd08:09:010
23468991712,3cyclictest30392-21timerwakeupswit07:23:390
23468991710,3cyclictest0-21swapper/008:48:320
23468991710,3cyclictest0-21swapper/008:38:300
2346999167,4cyclictest30391-21grep07:23:391
2346999162,7cyclictest0-21swapper/110:08:301
23469991610,3cyclictest0-21swapper/110:37:111
23469991610,1cyclictest0-21swapper/107:33:301
2346899165,7cyclictest0-21swapper/009:28:310
2346899161,7cyclictest0-21swapper/008:58:300
23468991610,3cyclictest0-21swapper/007:13:350
23468991610,2cyclictest0-21swapper/007:37:000
2346899152,9cyclictest0-21swapper/007:28:340
23468991410,1cyclictest0-21swapper/008:53:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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