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2025-09-17 - 06:14
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Wed Sep 17, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7916872274198,27sleep10-21swapper/119:08:281
7916702264185,27sleep00-21swapper/019:08:170
125899670,5rtkit-daemon1257-21rtkit-daemon00:26:230
8653452570,8sleep1865019-21/usr/sbin/munin21:45:191
125899570,4rtkit-daemon1257-21rtkit-daemon22:13:111
125899550,4rtkit-daemon1257-21rtkit-daemon22:22:401
125899530,4rtkit-daemon1257-21rtkit-daemon20:25:581
125899520,4rtkit-daemon1257-21rtkit-daemon20:17:151
125899510,4rtkit-daemon1257-21rtkit-daemon21:08:241
125899510,3rtkit-daemon1257-21rtkit-daemon21:41:091
125899500,4rtkit-daemon1257-21rtkit-daemon19:44:281
125899490,4rtkit-daemon1257-21rtkit-daemon23:19:181
125899490,4rtkit-daemon1257-21rtkit-daemon22:33:131
125899400,7rtkit-daemon919440-21ssh23:04:220
125899400,4rtkit-daemon0-21swapper/122:49:230
125899400,3rtkit-daemon0-21swapper/120:55:261
125899390,3rtkit-daemon0-21swapper/121:18:541
125899380,6rtkit-daemon802536-21cpuspeed_turbos19:35:180
125899380,3rtkit-daemon0-21swapper/000:36:410
125899370,5rtkit-daemon1257-21rtkit-daemon21:53:251
125899370,4rtkit-daemon1257-21rtkit-daemon23:49:231
125899370,3rtkit-daemon0-21swapper/123:37:041
125899370,3rtkit-daemon0-21swapper/122:26:221
125899370,3rtkit-daemon0-21swapper/023:57:201
125899370,3rtkit-daemon0-21swapper/021:56:521
125899370,3rtkit-daemon0-21swapper/020:48:380
8786462360,4chrt0-21swapper/122:04:031
125899360,4rtkit-daemon1257-21rtkit-daemon22:51:061
125899360,4rtkit-daemon1257-21rtkit-daemon22:48:351
125899360,4rtkit-daemon1257-21rtkit-daemon21:29:541
125899360,4rtkit-daemon1257-21rtkit-daemon21:23:471
125899360,3rtkit-daemon0-21swapper/123:43:561
125899360,3rtkit-daemon0-21swapper/123:06:061
125899350,6rtkit-daemon853912-21ssh21:28:590
125899350,3rtkit-daemon0-21swapper/123:51:540
125899350,3rtkit-daemon0-21swapper/121:59:330
125899350,3rtkit-daemon0-21swapper/121:03:541
125899350,3rtkit-daemon0-21swapper/119:11:461
125899350,3rtkit-daemon0-21swapper/100:15:151
125899350,3rtkit-daemon0-21swapper/020:46:531
125899350,3rtkit-daemon0-21swapper/019:34:041
125899350,3rtkit-daemon0-21swapper/000:34:091
125899340,5rtkit-daemon1067462-21snapd20:04:441
125899340,4rtkit-daemon1257-21rtkit-daemon23:14:251
125899340,4rtkit-daemon1257-21rtkit-daemon21:37:471
125899340,4rtkit-daemon0-21swapper/122:13:240
125899340,3rtkit-daemon0-21swapper/123:19:540
125899340,3rtkit-daemon0-21swapper/121:37:020
125899340,3rtkit-daemon0-21swapper/121:11:061
125899340,3rtkit-daemon0-21swapper/020:50:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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