You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-12-10 - 13:05
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
Characteristics of the 20 highest latencies:
System rackdslot3.osadl.org (updated Tue Dec 10, 2024 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191235168,22phc2sys0-21swapper/319:08:153
281582212147,22sleep10-21swapper/119:05:071
302672204171,22sleep20-21swapper/219:09:432
300452204172,22sleep00-21swapper/019:06:470
2169921430,6sleep03058299cyclictest22:15:240
277372570,2sleep30-21swapper/323:35:193
202672570,6sleep03058299cyclictest21:00:280
136991560,1ptp4l401ktimersoftd/319:45:173
136991560,1ptp4l401ktimersoftd/319:26:453
30582995418,6cyclictest9-21ksoftirqd/020:28:050
216312540,3sleep0101ktimersoftd/021:05:170
3058299534,7cyclictest5334-21/usr/sbin/munin22:50:120
3058299516,5cyclictest9-21ksoftirqd/023:25:160
30582995018,7cyclictest9-21ksoftirqd/023:20:150
30582995018,3cyclictest9-21ksoftirqd/023:53:290
281762500,5sleep09-21ksoftirqd/020:10:210
3058299486,3cyclictest9-21ksoftirqd/023:05:240
30582994718,7cyclictest9-21ksoftirqd/021:57:100
30582994718,7cyclictest9-21ksoftirqd/021:40:490
132891460,8getstats3058599cyclictest22:17:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional