You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-17 - 17:22
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 10 highest latencies:
System rack1slot2.osadl.org (updated Tue Mar 17, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
444728483,0sleep00-21swapper/007:13:400
443928281,0sleep20-21swapper/207:13:342
460126460,0sleep10-21swapper/107:15:211
4890995454,0cyclictest26702-21md0_resync09:29:261
4891994343,0cyclictest83050irq/26-0000:00:09:29:262
475923322,0sleep30-21swapper/307:17:073
4889991616,0cyclictest41ktimersoftd/009:29:260
8305060,0irq/26-0000:00:837-21grep09:03:123
8305060,0irq/26-0000:00:8-21rcu_preempt09:54:442
8305060,0irq/26-0000:00:32338-21perl07:58:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional