You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-10-04 - 09:07

ARM Broadcom BCM2711 @1500 MHz, Linux 5.10.52-rt47-v7l (Profile)

Latency plot of system in rack #4, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack4slot1.osadl.org (updated Tue Oct 04, 2022 03:37:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1514521340,3sleep20-21swapper/203:00:232
2402421180,2chrt0-21swapper/303:25:093
2402421180,2chrt0-21swapper/303:25:093
2402421180,2chrt0-21swapper/303:25:093
1169421120,2sleep30-21swapper/302:50:273
1169421120,2sleep30-21swapper/302:50:273
1169421120,2sleep30-21swapper/302:50:273
179022810,4sleep20-21swapper/203:07:102
97142680,3sleep30-21swapper/302:45:253
97142680,3sleep30-21swapper/302:45:253
177732620,3sleep30-21swapper/303:05:503
177692590,2sleep00-21swapper/003:05:480
3421995620,8cyclictest16208-20Xorg03:13:402
3421995620,8cyclictest16208-20Xorg03:13:402
134182550,3sleep30-21swapper/302:55:263
134182550,3sleep30-21swapper/302:55:263
342099492,36cyclictest16208-20Xorg03:05:191
162402490,3sleep30-21swapper/303:05:063
341999472,27cyclictest162081Xorg03:20:290
341999472,27cyclictest162081Xorg03:20:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional