You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2021-10-24 - 02:09

ARMv7 Processor rev 10 (v7l), Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #b, slot #7
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 rackbslot7.osadl.org (updated Mon May 03, 2021 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1817921159,76sleep018218-21aten_rbpower_en19:05:160
1994099898,8cyclictest0-21swapper/222:55:032
1994099843,12cyclictest29429-21diskstats00:10:192
1993899835,51cyclictest0-21swapper/022:17:050
1937528344,27sleep20-21swapper/219:06:402
19940998211,12cyclictest0-21swapper/221:45:192
1994099818,10cyclictest0-21swapper/223:50:032
1994099804,11cyclictest28991-21fschecks_count21:05:222
1994099793,14cyclictest20753-21apt-get22:19:162
1994099793,12cyclictest30978-21grep00:15:172
1994099789,13cyclictest0-21swapper/222:40:022
1994099784,66cyclictest8426-21apt21:40:012
1994099784,16cyclictest23543-21cut20:50:562
1994099784,16cyclictest23543-21cut20:50:562
1994099783,14cyclictest17817-21grep22:05:222
1958827835,28sleep10-21swapper/119:09:111
1994099778,13cyclictest0-21swapper/219:30:032
1994099777,16cyclictest0-21swapper/221:15:252
1994099774,65cyclictest7134-21cron00:40:002
1994099774,17cyclictest13353-21aten_rbpower_cu23:25:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional