[dpdk-dev] [PATCH 0/4] Extend --lcores to run on cores > RTE_MAX_LCORE

[Yigit, Ferruh]

On 12/2/2019 3:35 PM, David Marchand wrote:
> We are currently stuck with no option but recompile a DPDK if the system
> has more cores than RTE_MAX_LCORE.
> A bit of a pity when you get a system with more than 200+ cores and your
> testpmd has been built and packaged with RTE_MAX_LCORE == 128.

Just for clarification, in this case the DPDK application will work but will
only use RTE_MAX_LCORE cores, right? You need to compile to use all available cores.

Are cores more than RTE_MAX_LCORE usable after this patch?

> 
> The --lcores does not need to care about the underlying cores, remove
> this limitation.
> 

+1 to remove limit in --lcores, but I didn't make it work with this patchset, I
may be missing something, I tried by setting the "RTE_MAX_LCORE=32", in this
case should '--lcores "(30-40)@(10-20)"' work?