You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-21 - 20:48
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 rackdslot2.osadl.org (updated Fri Nov 21, 2025 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254812208172,25sleep00-21swapper/007:08:480
252462208173,23sleep20-21swapper/207:05:442
253602206170,25sleep30-21swapper/307:07:143
252752206172,23sleep10-21swapper/107:06:071
136591640,8ptp4l401ktimersoftd/308:58:303
2587599629,16cyclictest3459-21sed09:45:010
2587599628,17cyclictest17713-21/usr/sbin/munin10:15:210
2587599618,17cyclictest6985-21sed11:00:000
2587599609,16cyclictest6106-21df_abs12:05:160
25877995927,6cyclictest33-21ksoftirqd/210:50:292
2587699590,22cyclictest13029-21dpkg07:50:131
25877995825,4cyclictest33-21ksoftirqd/210:35:132
2587699580,22cyclictest5529-21dpkg07:35:001
2587599588,15cyclictest14674-21sed12:20:280
2587599579,17cyclictest8614-21systemctl11:00:260
2587599579,15cyclictest30647-21/usr/sbin/munin07:20:220
25877995624,6cyclictest33-21ksoftirqd/210:10:212
2587599558,15cyclictest12030-21grep11:10:110
25877995324,6cyclictest33-21ksoftirqd/210:05:162
25877995323,6cyclictest33-21ksoftirqd/210:40:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional