On Mon, 8 Jan 2018 08:00:00 +0000 Chris Mi <chr...@mellanox.com> wrote:
> > >> I wonder whether specifying the batch size is necessary at all. > > >> Couldn't batch mode just collect messages until either EOF or an > > >> incompatible command is encountered which then triggers a commit to > > >> kernel? This might simplify code quite a bit. > > > That's a good suggestion. > > > > Thanks for your time on this, Chris. > After testing, I find that the message passed to kernel should not be too big. > If it is bigger than about 64K, sendmsg returns -1, errno is 90 (EMSGSIZE). > That is about 400 commands. So how about set batch size to 128 which is big > enough? Use sendmmsg?