Hello Henry,
not quite sure what you are referring to as you are using Linux kernel
2.6.32-696.1.1.el6.x86_64 and perf is based on the perf_events interface and it
is exported by Linux kernel >= 2.6.31 - maybe it is just not in your path
("/usr/sbin/perf").
In addition i may got your description wrong but you wrote "A select count(*)
from dba_objects showed this behavior as did Jonathan Lewis's kill_cpu script."
- so you can completely ignore the I/O or network stack and focus on CPU (and
memory) as kill_cpu (https://jonathanlewis.wordpress.com/2016/10/03/kill-cpu/)
has nothing to do with these stacks.
... and if you want to analyze the CPU (and memory caching) behavior - measure
it with perf and you will see the difference.
Best Regards
Stefan Koehler
Independent Oracle performance consultant and researcher
Website: http://www.soocs.de
Twitter: @OracleSK
Henry Poras <henry.poras@xxxxxxxxx> hat am 11. August 2017 um 19:27--
geschrieben:
Some more minor updates and responses to suggestions:
Stefan - nice articles. Unfortunately neither turbostat or perf stat is
available. I've asked the sysadms about this.
