22/09/2017 16:52, ilia.kura...@intel.com: > From: Ilia Kurakin <ilia.kura...@intel.com> > > The patch simplifies DPDK applications analysis for developers which use > Intel® VTune Amplifier. > > The empty cycles are such iterations that yielded no RX packets. As far as > DPDK is running in poll mode, wasting cycles is equal to wasting CPU time. > Tracing such iterations can identify that device is underutilized. Tracing > empty cycles becomes even more critical if a system uses a lot of Ethernet > ports. > > The patch gives possibility to analyze empty cycles without changing > application code. All needs to be done is just to reconfigure and rebuild > the DPDK itself with CONFIG_RTE_ETHDEV_PROFILE_ITT_WASTED_RX_ITERATIONS > enbled. The important thing here is that this does not affect DPDK code. > The profiling code is not being compiled if user does not specify config > flag. > > The patch provides common way to inject RX queues profiling and VTune > specific implementation. > > Signed-off-by: Ilia Kurakin <ilia.kura...@intel.com>
Applied with previous Ack from Jerin, thanks
