You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-22 - 15:47
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 Fri May 22, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt29039-21ssh23:02:570
81780rcu_preempt0-21swapper/121:18:531
146550760irq/30-eth0-tx-3-21ksoftirqd/019:07:240
81750rcu_preempt0-21swapper/123:22:261
81740rcu_preempt31147-21ssh00:07:140
81740rcu_preempt18611-21ssh21:46:220
81720rcu_preempt19-21ksoftirqd/123:19:411
81720rcu_preempt0-21swapper/022:27:080
81710rcu_preempt0-21swapper/021:49:000
81710rcu_preempt0-21swapper/021:17:150
81700rcu_preempt15465-21ssh21:39:560
81690rcu_preempt18806-21sh23:43:580
81690rcu_preempt14843-21/usr/sbin/munin23:37:140
81680rcu_preempt404-21irqstats19:07:191
81680rcu_preempt0-21swapper/023:23:080
89950670irq/17-ehci_hcd7851-21apt-get21:27:051
89550670irq/17-ehci_hcd0-21swapper/023:34:510
81670rcu_preempt9849-21sh00:27:510
81670rcu_preempt3-21ksoftirqd/000:23:340
81670rcu_preempt0-21swapper/122:55:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional