Arch Linux

GAZ082

Member

Registered: 2015-06-02

Posts: 32

EEVDF scheduler in 6.6

Hey. I want to use EEVDF but it does not seem to be available in /sys/block/sda/queue/scheduler

Its supposed to be the "default" scheduler right now according  to the Wiki, but its not yet available?

Thanks.

feguy

Member

Registered: 2023-11-14

Posts: 1

Re: EEVDF scheduler in 6.6

What you're looking at is the available I/O schedulers - in a general sense, these are responsible for scheduling operations for storage devices.

EEVDF is a CPU scheduler, which more or less decides how CPU runtime should be distributed among a queue of processes. The CPU scheduler is compiled as part of the kernel, so unless you've deliberately patched in a different scheduler (or use a custom kernel that does so), you're using EEVDF (if you've upgraded to 6.6) - it's not something you can change at runtime.

Last edited by feguy (2023-11-14 08:14:40)

GAZ082

Member

Registered: 2015-06-02

Posts: 32

Re: EEVDF scheduler in 6.6

What you're looking at is the available I/O schedulers - in a general sense, these are responsible for scheduling operations for storage devices.

EEVDF is a CPU scheduler, which more or less decides how CPU runtime should be distributed among a queue of processes. The CPU scheduler is compiled as part of the kernel, so unless you've deliberately patched in a different scheduler (or use a custom kernel that does so), you're using EEVDF (if you've upgraded to 6.6) - it's not something you can change at runtime.

Thank you for educating me! Welcome to the forums!

GAZ082

Member

Registered: 2015-06-02

Posts: 32

Re: EEVDF scheduler in 6.6

BTW, looks like its not enabled in the standard linux-6.6 package

loqs

Member

Registered: 2014-03-06

Posts: 18,877

Re: EEVDF scheduler in 6.6

BTW, looks like its not enabled in the standard linux-6.6 package

Please reread feguy's comment.