[dpdk-dev] [PATCH] dropping librte_ivshmem

Thomas Monjalon thomas.monjalon at 6wind.com
Mon Jun 20 17:54:13 CEST 2016


2016-06-20 16:44, Ferruh Yigit:
> On 6/15/2016 7:34 PM, Thomas Monjalon wrote:
> > 2016-06-15 19:16, Ferruh Yigit:
> >> On 6/9/2016 10:26 PM, Thomas Monjalon wrote:
> >>> So this is my proposal:
> >>> Someone start working on the above cleanup now, otherwise the whole
> >>> rte_ivshmem feature will be deprecated in 16.07 and removed in 16.11.
> >>
> >> I would like to note that at least SPP (soft patch panel) is using
> >> rte_ivshmem feature.
> > 
> > Why?
> > Can SPP work without ivshmem?
> > 
> 
> Can do, it supports both ivshmem and vhost.
> But ivshmem gives clearly more performance for VM to VM communication.

But SPP is not about performance? My understanding is that it supports
what DPDK supports.
And the question here is not about the benefit of QEMU ivshmem but the
current design of DPDK object sharing via ivshmem (librte_ivshmem).


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