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2025-12-14 - 00:08
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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 rackbslot2.osadl.org (updated Sat Dec 13, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14866602237183,20sleep00-21swapper/007:08:450
14866312233181,42sleep10-21swapper/107:08:221
14867322227198,19sleep20-21swapper/207:09:382
14865882222193,19sleep30-21swapper/307:07:483
1486943996754,12cyclictest1621862-21/usr/share/muni09:45:041
1486941996751,13cyclictest1622087-21snmp_wlanswitch09:45:040
1486949996547,10cyclictest1725263-21snmp_ryswitch.c11:45:013
1486946996248,2cyclictest1725271-21snmp_wlanswitch11:45:012
1486946995651,4cyclictest1621536-21latency_hist09:45:012
1486946995237,2cyclictest1573676-21kworker/2:2+pm10:15:282
1486946995148,2cyclictest1482448-21kworker/u8:2+flush-179:007:35:142
17168572500,1chrt1716856-21ntpq11:35:032
1486946995046,3cyclictest1599567-21kworker/u8:3+events_unbound09:20:142
1486946994945,3cyclictest1551721-21kworker/u8:1+flush-179:008:30:062
1486941994946,2cyclictest1518160-21/usr/sbin/munin07:45:010
1486943994843,3cyclictest1518070-13chrome07:45:021
1486941994843,3cyclictest1772064-21latency_hist12:40:000
16307362470,1chrt1630731-21ntpq09:55:023
1486946994742,4cyclictest1625138-21kworker/u8:1+flush-179:009:55:142
1486949994646,0cyclictest1554724-21awk08:25:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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