[GTALUG] Linux kernel 5.3.0

[Dhaval Giani]

On Fri, Sep 20, 2019 at 5:00 AM David Collier-Brown via talk
<talk at gtalug.org> wrote:
>
>
> On 2019-09-19 11:11 p.m., William Park via talk wrote:
>
> I just tried kernel 5.3.0, and it's noticeably faster in opening
> windows.  Not sure about overall throughput, though.
>
>
> I'd be interested in how quick it is in unblocking processes who just got I/O. I have servers doing arrays of heavily parallel network requests who race each other to get back, but then compete to get a core to service them.
>

Ha, you might be interested in the latest thing we are working on
upstream. We discussed it last week at Linux Plumbers. We are calling
it latency-nice (but as all good programmers know, naming is hard and
this will probably change).

Right now the scheduler is not too good at figuring out which process
should get a place to run at quickly, and by providing a latency-nice
tunable, you can ensure your latency sensitive processes are placed on
the runqueue quickly.

Keep an eye out for this, hopefully we will get it upstream in a few months.

Dhaval

> --dave
>
> --
> David Collier-Brown,         | Always do right. This will gratify
> System Programmer and Author | some people and astonish the rest
> davecb at spamcop.net           |                      -- Mark Twain
>
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