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2025-12-19 - 19:08
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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 rack7slot3.osadl.org (updated Fri Dec 19, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289162135622sleep28915-21cut07:05:320
2943499271122cyclictest2834-21snmpd12:23:530
2943499269222cyclictest245972sleep09:11:110
2943499263232cyclictest8488-21sh12:26:480
2943499263231cyclictest3667-21fgrep09:57:200
2943499261107cyclictest15793-21grep10:46:040
2943499259233cyclictest8126-21ssh10:15:420
294349925889cyclictest7011-21runrttasks07:51:400
2943499258232cyclictest31586-21cpu11:50:070
2943499256229cyclictest11603-21munin-run10:30:000
2943499256224cyclictest7068-21runrttasks10:11:160
294349925489cyclictest29527-21kernelversion09:31:360
2943499254229cyclictest2800-21/usr/sbin/munin09:55:180
2943499254228cyclictest19816-21latency11:01:390
2943499254117cyclictest24196-1kworker/0:2H11:50:520
294349925391cyclictest10910-21fschecks_count08:10:280
2943499251122cyclictest24464-21sh09:10:470
2943499251102cyclictest738-21ssh11:56:190
294349925094cyclictest1244-21runrttasks07:26:500
294349925080cyclictest2629-21sh12:03:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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