Sunday, July 14, 2019

BMQ 0.98 release

BMQ 0.98 is released with the following changes

1. Minor comment/code readable changes.
2. BMQ default RLIMIT_NICE, which let normal privilege users can set nice up to -10.
3. Instroduce __bmq_find_first_bit()/__bmq_find_next_bit() for rq->queue.bitmap, to avoid zero checking.

In this release, there is just one minor improvement(#3) for BMQ itself. But there is #2 for user experience. Now, even normal privilege users can promote interactive focused tasks to nice level up to -10, for example, I'd like to use "nice --5 firefox" to run firefox so heavy normal nice level 0 tasks on the terminal won't impact it. Usually, normal privilege users can't set nice level lower than 0. But it should be a nice to have privilege if using BMQ.

Further explanation  about the above use case, consider there is +/-4 auto nice level adjustment in BMQ, the firefox and the normal nice level 0 tasks will still have some overlap in scheduler level for some time, but the result turns out very good. If no overlap is really required, nice level -10 can be used for the firefox.

Enjoy BMQ 0.98 for v5.2 kernel, :)

Full kernel tree repository can be found at https://gitlab.com/alfredchen/linux-bmq
And all-in-one patch can be found at gitlab.

Please report bugs at https://gitlab.com/alfredchen/bmq/issues.

Sunday, July 7, 2019

BMQ 0.97 release

BMQ 0.97 is released with the following changes

1. Sync up with mainline 5.2 scheduler code changes.
2. Fix compilation error when PSI disabled and CGROUP enabled.

This is the first release for 5.2 kernel, just a sync-up release.

Enjoy BMQ 0.97 for v5.2 kernel, :)

Full kernel tree repository can be found at https://gitlab.com/alfredchen/linux-bmq
And all-in-one patch can be found at gitlab.

Please report bugs at https://gitlab.com/alfredchen/bmq/issues.