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2025-07-07 - 02:18
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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 Sun Jul 06, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288062303270,21sleep20-21swapper/207:06:572
289392277214,18sleep00-21swapper/007:08:400
288432261227,21sleep30-21swapper/307:07:263
270822254220,22sleep10-21swapper/107:05:031
274072690,0sleep00-21swapper/011:02:320
130802690,0sleep30-21swapper/309:57:523
137742630,0sleep20-21swapper/207:45:012
218962590,0sleep30-21swapper/309:10:263
79102580,0sleep00-21swapper/009:26:170
271062570,0sleep00-21swapper/008:10:210
271062570,0sleep00-21swapper/008:10:200
165722570,0sleep10-21swapper/111:39:331
243282530,0sleep30-21swapper/309:40:223
92852210,3sleep334-21ksoftirqd/307:35:013
23022190,0sleep20-21swapper/212:30:182
305732160,0sleep30-21swapper/311:47:523
288472140,0sleep10-21swapper/110:38:101
134612130,0sleep10-21swapper/110:25:131
2917199121,3cyclictest19982-21systemd-journal07:27:111
2917199113,3cyclictest20423-21tail11:20:201
2917199113,2cyclictest15086-21perf10:00:011
2917199112,3cyclictest19982-21systemd-journal08:03:291
2917199110,4cyclictest32685-21munin-run10:15:011
2917199110,3cyclictest19982-21systemd-journal10:20:011
2917199110,3cyclictest16323-21apt12:40:001
2917199110,2cyclictest19982-21systemd-journal08:40:001
2917199103,2cyclictest14215-21cat07:45:131
2917199103,1cyclictest6859-21sh11:53:271
2917199103,1cyclictest32114-21grep07:15:011
2917199102,3cyclictest30654-21snmpd09:28:011
2917199102,2cyclictest27993-21expr08:15:161
2917199102,2cyclictest13290-21sshd08:55:061
2917199101,3cyclictest8310-21idleruntime-cro12:35:001
2917199101,2cyclictest19982-21systemd-journal07:57:131
2917199100,3cyclictest19982-21systemd-journal11:05:321
2917199100,3cyclictest19982-21systemd-journal11:00:001
2917199100,2cyclictest502-21systemd-logind09:52:231
2917199100,2cyclictest19982-21systemd-journal10:50:221
2917199100,2cyclictest19982-21systemd-journal10:05:011
249372100,0sleep219733-21diskmemload12:05:012
249372100,0sleep219733-21diskmemload12:05:012
213752100,0sleep00-21swapper/012:02:100
213752100,0sleep00-21swapper/012:02:100
291719993,2cyclictest30654-21snmpd09:20:091
291719993,2cyclictest24948-21ssh09:40:451
291719993,1cyclictest19733-21diskmemload10:30:081
291719993,1cyclictest17533-21timerwakeupswit07:50:241
291719992,3cyclictest7661-21lldpd07:12:001
291719992,3cyclictest30654-21snmpd10:07:541
291719992,2cyclictest9548-21expr11:55:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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