On Thu, Oct 14, 2021 at 04:54:19AM +0800, Kefu Chai wrote: > RTE_MAX_MEMSEG_LISTS = 128 is not enough for many-core machines, in our > case, we need to increase it to 8192. so add an option so user can > override it. > > Signed-off-by: Kefu Chai <tchai...@gmail.com>
This seems a very low-level option to be exposing to the user. Some thoughts/questions: - can you give some more detail on why you need such a massive number, 64 times the default? - what would be the impact of increasing the default to 8192? I assume this is only used in a few places in EAL, so would the memory footprint increase be large? - rather than a single specified value, would an alternative be to make this be a computed value at config time, scaled by number of lcores (or number of numa nodes)? Regards, /Bruce
