[QUESTION][16.0] queue_job: How to run parallel queue

[Saran440]

I tested with module queue_job and base_import_async and config odoo.conf

workers = 4
server_wide_modules = web,queue_job

[queue_job]
channels = root:4,root.ir_cron:3

Test 1 (Import 2 file 100k and 50k) with run background

• Import 100k record first. status = 'started'
• Import 50k record. status = 'started' but it taketime 87s

Test 2 (Import 1 file 50k) with run background

• Import 50k record. status = 'started' it taketime 26s

I would like to run 2 file in parallel queue. How can I config or do something mistake?

Thank you