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2025-08-29 - 14:38
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rack2slot7.osadl.org (updated Fri Aug 29, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
384820599430,23cyclictest0-21swapper/011:14:480
3848205994216,4cyclictest3895554-21sendmail-msp09:24:560
384820599393,32cyclictest0-21swapper/011:37:160
384820599370,24cyclictest3936371-21tune2fs10:17:210
384820799351,8cyclictest171rcu_preempt10:42:222
3848205993518,7cyclictest3928254-21aten_r2power_en10:07:190
3848205993227,4cyclictest3857029-21fschecks_time07:42:200
3848205993218,4cyclictest4051639-21ntpq12:32:220
384820599320,21cyclictest3966200-21aten_r2power_po10:57:160
384820599310,22cyclictest3990514-21aten_r2power_cu11:27:160
3848206993027,2cyclictest0-21swapper/112:27:231
384820599301,16cyclictest3850117-21aten_r2power_cu07:22:140
384820599290,21cyclictest3986575-21/usr/sbin/munin11:22:150
3848207992821,5cyclictest4016154-21fschecks_time11:57:162
384820599281,7cyclictest4020970-21grep12:02:170
384820599281,21cyclictest3884490-21timerandwakeup09:02:320
384820599280,25cyclictest3911250-21sendmail-msp09:45:120
112699280,4rtkit-daemon1125-21rtkit-daemon10:47:231
3848207992716,8cyclictest3986998-21fschecks_time11:22:262
384820699271,8cyclictest11050irq/107-eth%d12:17:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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