You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-17 - 03:49
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.

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 rackcslot3.osadl.org (updated Mon Nov 17, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt29726-21latency_hist19:04:561
81730rcu_preempt26076-21sendmail_mailtr20:55:200
81710rcu_preempt9095-21sh00:30:260
90050700irq/17-ehci_hcd0-21swapper/122:22:561
81690rcu_preempt1435-21ssh00:16:561
81690rcu_preempt10696-21sh00:35:030
81690rcu_preempt0-21swapper/023:45:220
81690rcu_preempt0-21swapper/021:45:150
81680rcu_preempt14101-1kworker/0:0H21:26:540
81680rcu_preempt0-21swapper/020:30:110
90050670irq/17-ehci_hcd946-21usb-storage22:15:270
81670rcu_preempt0-21swapper/122:35:191
81670rcu_preempt0-21swapper/023:56:250
81660rcu_preempt2235-21snmpd21:16:190
81660rcu_preempt20851-21sh21:53:131
81660rcu_preempt0-21swapper/123:30:141
151450660irq/28-eth0-rx-181ktimersoftd/122:03:491
90050650irq/17-ehci_hcd946-21usb-storage22:06:310
81650rcu_preempt29091-21sh23:08:160
81650rcu_preempt0-21swapper/123:51:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional