Re: [dpdk-dev] [PATCH] test: rely on EAL detection for core list

[Bruce Richardson <bruce.richardson@intel.com>]

On Mon, Oct 18, 2021 at 07:01:36PM +0200, David Marchand wrote:
> Cores count has a direct impact on the time needed to complete unit
> tests.
> 
> Currently, the core list used for unit test is enforced to "all cores on
> the system" with no way for (CI) users to adapt it.
> On the other hand, EAL default behavior (when no -c/-l option gets passed)
> is to start threads on as many cores available in the process cpu
> affinity.
> 
> Remove logic from meson: users can then select where to run the tests by
> either running meson with a custom cpu affinity (using taskset/cpuset
> depending on OS) or by passing a --test-args option to meson.
> 
> Example:
> $ sudo meson test -C build --suite fast-tests -t 3 --test-args "-l 0-3"
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---
> I wanted to post this as a RFC, but now, I wonder if all CI test RFC
> patches, so sending as a normal patch.
> 
> ---
I really like this idea! Patch looks good other than it needs some doc
changes.