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2026-03-25 - 11:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Wed Mar 25, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30157224382195,96sleep00-21swapper19:07:330
303189913076,33cyclictest24252-21ssh21:22:560
303189912976,32cyclictest16632-21fw_conntrack22:34:420
303189912773,32cyclictest1690-21snmpd00:09:560
303189912672,32cyclictest14352-21ssh00:02:080
303189912574,32cyclictest25572-21ssh00:34:520
303189912573,32cyclictest3347-21/usr/sbin/munin23:30:120
303189912474,31cyclictest20122-21/usr/sbin/munin22:44:460
303189912371,29cyclictest28299-21df_abs21:34:300
303189912369,31cyclictest30818-21ssh21:41:120
303189912270,31cyclictest20961-21ssh00:20:480
303189912166,34cyclictest529-21ssh23:22:010
303189912074,25cyclictest8536-21ntp_states23:45:130
303189911970,31cyclictest5174-21ssh22:00:390
303189911873,24cyclictest27817-21ssh23:07:000
303189911771,26cyclictest9689-21fw_conntrack20:14:190
303189911769,31cyclictest1690-21snmpd20:11:230
303189911669,29cyclictest2101-21ssh21:52:360
303189911659,42cyclictest8093-21kworker/0:022:11:580
303189911573,26cyclictest14866-21df_abs22:29:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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