[dpdk-dev] About pmu cycle counter usage in armv8
hejianet at gmail.com
Mon Dec 11 06:38:25 CET 2017
In , I met a pmu cycle counter problem (all return value is 0)
And then I submited a patch to kernel maillist, but was rejected by
maintainer at last .
"We only intend for the in-kernel perf infrastructure to access
pmccntr_el0; nothing else should touch it."
So maybe it is not proper for dpdk to use pmu cycle counter?
More information about the dev