Re: [RFC PATCH 00/30] Code tagging framework and applications

Jens Axboe
2022-09-02T20:23:59Z

On 9/2/22 2:05 PM, Kent Overstreet wrote:
> On Fri, Sep 02, 2022 at 01:53:53PM -0600, Jens Axboe wrote:
>> I've complained about memcg accounting before, the slowness of it is why
>> io_uring works around it by caching. Anything we account we try NOT do
>> in the fast path because of it, the slowdown is considerable.
>
> I'm with you on that, it definitely raises an eyebrow.
>
>> You care about efficiency now? I thought that was relegated to
>> irrelevant 10M IOPS cases.
>
> I always did, it's just not the only thing I care about.

It's not the only thing anyone cares about.

--
Jens Axboe