Sidekiq runs 25 worker threads by default. MRI will context switch upon I/O so typical server-side applications will get plenty of concurrency, even with the GIL, because they spend lots of time talking to the DB, memcached, redis, 3rd party APIs, etc.
tl;dr - Sidekiq can do a LOT of work, even on MRI with the GIL.
Comments
Sidekiq runs 25 worker threads by default. MRI will context switch upon I/O so typical server-side applications will get plenty of concurrency, even with the GIL, because they spend lots of time talking to the DB, memcached, redis, 3rd party APIs, etc.
tl;dr - Sidekiq can do a LOT of work, even on MRI with the GIL.