[dpdk-dev] [PATCH v2 01/10] build: add an option to enable LTO build
amo at semihalf.com
Thu Sep 19 14:35:51 CEST 2019
On 9/18/19 3:32 PM, Ray Kinsella wrote:
> this is cool, good work.
> comments below.
>> # Compile to share library
> Why would we make this optional in this way and expand the matrix of
> different ways to build DPDK. To ask another way, why wouldn't a user
> turn on GSO.
Compilation time is much longer. In a normal hack|fix/compile/repeat
cycle with "compile" part being simple "make" the link time might be a
bit annoying. So I imagine keeping LTO off for the most part of the dev
cycle and then at the end when doing release/cleanup turn LTO on - to
either get release build ready or to get some set of warnings that you
address before yet another attempt to release build. By the way - this
make config option is equivalent to meson 'b_lto' option, which by
default is off, so we have similar behaviour in both build types.
PS. I assumed that you've meant "LTO" not "GSO" - if not, then please
explain what you've meant.
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