You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-01 - 00:42
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack1slot2.osadl.org (updated Mon Jun 30, 2025 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2391523826,0sleep20-21swapper/206:27:292
2327923826,0sleep10-21swapper/106:24:081
2391123728,0sleep30-21swapper/306:27:263
2373223523,0sleep00-21swapper/006:25:230
29925080,0irq/32-eth0-rx-19338-21kthreadcore07:29:003
329970,0watchdog/31615-21awk06:54:023
329970,0watchdog/30-21swapper/311:55:493
329970,0watchdog/30-21swapper/310:29:063
29925070,0irq/32-eth0-rx-30220-21cut07:14:053
29925070,0irq/32-eth0-rx-0-21swapper/309:53:163
329960,0watchdog/323857-21cut07:34:023
329960,0watchdog/321997-21munin-node08:39:063
329960,0watchdog/30-21swapper/311:48:413
329960,0watchdog/30-21swapper/311:44:373
329960,0watchdog/30-21swapper/311:43:253
329960,0watchdog/30-21swapper/311:33:533
329960,0watchdog/30-21swapper/311:28:413
329960,0watchdog/30-21swapper/311:23:573
329960,0watchdog/30-21swapper/311:10:373
329960,0watchdog/30-21swapper/311:03:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional