You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-05-25 - 09:01

x86 VIA QuadCore L4700 @1200 MHz, Linux 3.18.43-rt46 (Profile)

Latency plot of system in rack #b, slot #4
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot4.osadl.org (updated Fri May 20, 2022 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2203699542,46cyclictest17529-21perl22:23:072
216322549,17sleep10-21swapper/118:16:091
2203699525,40cyclictest0-21swapper/222:08:192
2203699522,43cyclictest27949-21sshd22:50:472
22036995212,5cyclictest0-21swapper/222:03:182
2204399515,39cyclictest0-21swapper/323:18:053
22043995110,35cyclictest1575-21/usr/sbin/munin23:08:053
2203699514,40cyclictest0-21swapper/218:24:432
2203699513,42cyclictest0-21swapper/223:00:562
2204399507,36cyclictest10945-21/usr/sbin/munin23:33:133
2204399505,11cyclictest0-21swapper/320:38:223
2204399503,19cyclictest0-21swapper/320:24:503
2204399503,19cyclictest0-21swapper/320:24:503
22043995011,33cyclictest25203-21/usr/sbin/munin21:18:263
2203699504,39cyclictest0-21swapper/221:03:192
2203699503,41cyclictest0-21swapper/223:39:552
2202699503,42cyclictest0-21swapper/118:44:231
2204399498,35cyclictest6488-21/usr/sbin/munin20:28:283
2204399498,35cyclictest6488-21/usr/sbin/munin20:28:283
2204399498,35cyclictest29489-21latency21:28:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional