[dpdk-dev] DPDK and Link-time Optimizations

[Thomas Monjalon]

29/04/2019 18:39, Mattias Rönnblom:
> If LTO builds would work "out of the box", DPDK could gradually migrate 
> from away from having static inline functions in the header files.
> 
> Those interested squeezing out as much performance as possible would 
> build with LTO (and static linking), and those applications who cared 
> more about independent upgrades would use dynamic linking and non-LTO 
> builds. With the extra cost of using DPDK as a shared library 
> (-fPIC-compiled code, more expensive TLS accesses etc), I'm guessing 
> this is the case already today.

That's an interesting point of view.

For info, LTO is merged now.

I would like to see some benchmarks about
LTO static vs shared vs shared without inlines.
Then we could decide what to do with inline functions.