[dpdk-users] MEMPOOL contentions

[Junguk Cho]

Hi, Keith.

Thank you for reply.

I reached those setup.
My question is when I run my app after these setup, how to get statistics?
In other words, where can I see some statistics like file or screen?


Thanks,
Junguk

2016-09-02 12:35 GMT-06:00 Wiles, Keith <keith.wiles at intel.com>:

>
> Regards,
> Keith
>
> > On Sep 2, 2016, at 1:27 PM, Junguk Cho <jmanbal at gmail.com> wrote:
> >
> > Hi,
> >
> > In my setup, I created one mempool which is shared with 5 rings.
> > So, I want to know statistics of contentions between 5 rings like taking
> > time to get one mbuf.
> > In the manual, there are some options like CONFIG_RTE_LIBRTE_MEMPOOL_
> DEBUG.
>
> Add the option to your config file uses in the build of DPDK and set the
> value to ‘y’ instead of ’n’.
>
> Example: edit or copy say defconfig_x86_64-native-linuxapp-gcc and add
> something like this;
>
> CONFIG_RTE_LIBRTE_MEMPOOL_DEBUG=y
>
> Then rebuild DPDK using something like ‘make install
> T=x86_64-native-linux-gcc -j'
>
> > However, I don't know how to use it.
> >
> > Is there any reference?
> >
> > Intuitively, as the number of rings are increase, I think the contention
> > happened frequently.
> > So, to avoid this, is increasing CONFIG_RTE_MEMPOOL_CACHE_MAX_SIZE one
> > solution?
> >
> >
> > Thanks,
> > Junguk
>
>