You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-12 - 00:34
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 rack3slot6.osadl.org (updated Tue Nov 11, 2025 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226921530,6sleep0171rcuc/007:05:190
3672999173,10cyclictest26-21ksoftirqd/108:20:151
3672999172,10cyclictest26-21ksoftirqd/110:00:181
3672998960,14cyclictest26-21ksoftirqd/111:30:161
336428829,48sleep10-21swapper/107:08:381
3672998770,11cyclictest26-21ksoftirqd/110:10:171
291732860,7chrt0-21swapper/011:20:390
3672998556,15cyclictest26-21ksoftirqd/109:20:141
3668998130,34cyclictest14-21ksoftirqd/007:32:400
3672998053,15cyclictest26-21ksoftirqd/107:45:161
3672997954,16cyclictest504-21snmpd12:05:151
3672997851,17cyclictest26-21ksoftirqd/111:45:261
3672997850,18cyclictest26-21ksoftirqd/109:55:161
3672997850,16cyclictest26-21ksoftirqd/108:30:151
3672997848,17cyclictest26-21ksoftirqd/108:25:161
3672997748,14cyclictest26-21ksoftirqd/110:30:151
3668997639,30cyclictest504-21snmpd11:13:380
3672997450,14cyclictest26-21ksoftirqd/109:05:241
3672997447,18cyclictest26-21ksoftirqd/107:40:171
3672997442,20cyclictest14204-21diskmemload09:10:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional