[SPDK] Re: The power consumption of spdk framework.

Thank you so much for your response.

松本周平 / MATSUMOTO，SHUUHEI <shuhei.matsumoto.xt(a)hitachi.com> 於 2020年3月5日 週四
上午10:51寫道：

> Hi Vincent,
>
> An idea is out there now.
>
> The current idea is to migrate SPDK threads among CPU cores and create
> idle reactor.
> Idle reactor sleeps until any thread runs on it.
>
> Related patche is https://review.spdk.io/gerrit/c/spdk/spdk/+/1049 to
> sleep idle reactors.
> The recently added thread_set_cpumask can migrate SPDK thread among CPU
> cores.
>
> We discussed this topic in the last community meeting. Please check this
> together if you have interest.
>
> https://trello.com/c/JndSGRoW/277-simple-cpu-core-parking-when-reactor-has-no-threads
> Trello<
> https://trello.com/c/JndSGRoW/277-simple-cpu-core-parking-when-reactor-has-no-threads
> >
> Organize anything, together. Trello is a collaboration tool that organizes
> your projects into boards. In one glance, know what's being worked on,
> who's working on what, and where something is in a process.
> trello.com
>
>
> Thanks,
> Shuhei
>
>
>
> ________________________________
> 差出人: Vincent <cockroach1136(a)gmail.com>
> 送信日時: 2020年3月5日 11:38
> 宛先: Storage Performance Development Kit <spdk(a)lists.01.org>
> 件名: [SPDK] The power consumption of spdk framework.
>
> Hello all,
>    We know when spdk start, The cpu-core used by spdk usage will become
> 100% due to busy loop of reactor.  I remember this topic has been discussed
> before. But I forget the conclusion. I cannot find out the conclusion in
> the internet and maillist too.
>
>     Does anyone can provide me the information about this topic ??
> Can spdk avoid the cpu usage 100% when idle now??
>
> Thank you so much.
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