Hi all Just recently bumped up my project to use pants 2 14 Pants #general

Hi all! Just recently bumped up my project to use ...

ambitious-xylophone-5772

11/01/2022, 6:03 PM

Hi all! Just recently bumped up my project to use pants 2.14.0 from 2.13.0 and I’m trying to use the

xdist_enabled

option. I’ve set it to be true in

pants.toml

, but I’m not exactly sure if my tests are being run in parallel underneath. Checking

htop

isn’t really giving me an indication

sparse-lifeguard-95737

11/01/2022, 6:23 PM

you might be able to tell by running

ps ax | grep pex

and looking for usage of the

-n

flag

👀 1

sparse-lifeguard-95737

11/01/2022, 6:24 PM

the pants engine will limit the parallelism allocated to xdist based on the total number of processes scheduled at a time, so even if it’s enabled you might end up with all

-n 1

if the engine schedules a ton of concurrent processes 😕

sparse-lifeguard-95737

11/01/2022, 6:26 PM

Pants 2.15 will be adding support for testing multiple python files in a single

pytest

process - I haven’t tried combining it with xdist yet, but I’m hopeful the two together will behave like most people expect

ambitious-xylophone-5772

11/01/2022, 6:35 PM

Yeah I do have a ton of pytest files so it’s possible that I’m not getting as much parallelism as I may have hoped

ambitious-xylophone-5772

11/01/2022, 6:37 PM

Thanks @sparse-lifeguard-95737, I didn’t think of using

ps ax

, seems like it is

-n 1

happy-kitchen-89482

11/01/2022, 6:48 PM

If you run

./pants test --output=all ...

you’ll see all the pytest output, so that should tell you?

👀 1

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