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2025-10-06 - 13:25
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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 rack7slot8.osadl.org (updated Sun Oct 05, 2025 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11481213880,10sleep011479-21irqstats07:05:220
123819917938,17cyclictest10250irq/56-4a10000010:15:340
12381991768,37cyclictest1424-21nginx08:10:530
123819917137,16cyclictest10250irq/56-4a10000010:31:220
123819917134,31cyclictest10250irq/56-4a10000010:10:330
123819917028,21cyclictest1356-21snmpd11:16:020
123819916233,13cyclictest10250irq/56-4a10000009:00:580
123819916218,29cyclictest792-21haveged08:35:030
123819916152,14cyclictest10150irq/55-4a10000010:05:280
123819916137,13cyclictest8950irq/40-mmc112:22:130
123819916044,14cyclictest8950irq/40-mmc107:32:110
123819916041,15cyclictest10150irq/55-4a10000008:04:580
12381991597,41cyclictest1356-21snmpd07:14:460
123819915939,21cyclictest21990-21ntp_states07:45:520
123819915927,19cyclictest1356-21snmpd09:55:360
12381991587,36cyclictest1356-21snmpd11:26:030
12381991587,20cyclictest16497-21apt-get09:37:100
123819915732,26cyclictest0-21swapper/012:01:160
123819915629,28cyclictest8785-21wget11:10:170
123819915610,20cyclictest10952-21cut09:10:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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