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2025-04-23 - 06:33
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Wed Apr 23, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202712299267,20sleep20-21swapper/219:07:222
202772278227,15sleep30-21swapper/319:07:273
202062271243,18sleep00-21swapper/019:06:310
203372259226,21sleep10-21swapper/119:08:131
132352920,0sleep00-21swapper/021:40:080
179322600,0sleep30-21swapper/322:10:143
77262580,0sleep00-21swapper/022:01:070
234122580,0sleep10-21swapper/119:15:021
231642580,0sleep10-21swapper/121:49:021
283182570,0sleep1211rcuc/123:13:511
21072570,0sleep10-21swapper/123:45:271
287042560,0sleep30-21swapper/321:52:413
158092220,0sleep10-21swapper/121:41:171
307992210,0sleep20-21swapper/223:41:392
252592200,0sleep20-21swapper/223:37:352
180122200,1sleep218010-21apt-config00:30:002
13542200,0sleep00-21swapper/021:30:100
125952200,0sleep10-21swapper/100:23:061
261842190,0sleep20-21swapper/222:44:252
289422180,0chrt0-21swapper/320:40:243
287962180,0sleep30-21swapper/300:39:543
256302180,0sleep00-21swapper/023:38:010
154222180,0sleep00-21swapper/023:55:510
158382150,0sleep10-21swapper/122:09:281
260182130,0sleep00-21swapper/021:22:450
248202110,0sleep20-21swapper/200:04:012
197222100,0sleep20-21swapper/221:45:232
205959994,3cyclictest19982-21systemd-journal23:58:443
205959990,8cyclictest17555-21taskset23:31:133
205929995,3cyclictest508-21dbus-daemon00:24:362
205929994,3cyclictest19982-21systemd-journal22:25:002
32067280,0sleep20-21swapper/221:29:122
25334280,1sleep122-21ksoftirqd/120:35:141
24741280,0sleep10-21swapper/100:35:161
205959984,3cyclictest6060-21irqstats22:00:153
205959984,3cyclictest508-21dbus-daemon19:23:233
205929987,1cyclictest28-21ksoftirqd/220:40:002
205929984,3cyclictest19982-21systemd-journal20:50:342
205929983,3cyclictest7661-21lldpd23:15:182
205929983,3cyclictest19982-21systemd-journal20:50:002
205929980,5cyclictest20912-21munin-run23:35:002
205879985,2cyclictest22-21ksoftirqd/120:00:001
205839985,2cyclictest508-21dbus-daemon00:37:570
205839984,3cyclictest19982-21systemd-journal22:44:530
17322280,1sleep117321-21users21:15:221
205959974,2cyclictest4355-21grep19:45:213
205959973,3cyclictest6700-21dpkg23:50:083
205959973,3cyclictest30654-21snmpd23:08:063
205959973,3cyclictest30654-21snmpd00:05:473
205959973,3cyclictest19982-21systemd-journal00:00:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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