[SPDK] Re: SPDK Thread and Nvmf QPair migration

Hi Hari, Ben,

I added a simple patch to exercise repeated poll group migration among multiple POSIX threads.
https://review.spdk.io/gerrit/c/spdk/spdk/+/2556

I hope this will be any help to get better understanding.

Thanks,
Shuhei

________________________________
差出人: 松本周平 / MATSUMOTO，SHUUHEI <shuhei.matsumoto.xt(a)hitachi.com>
送信日時: 2020年5月20日 8:02
宛先: spdk(a)lists.01.org <spdk(a)lists.01.org>
件名: Re: [SPDK] Re: SPDK Thread and Nvmf QPair migration

Hi Hari, Ben, and all,

I implemented dynamic SPDK thread rescheduling onto a sample nvmf application which is not based on event (reactor) framework.
I will add a patch to exercise poll group thread migration in this sample application.

https://review.spdk.io/gerrit/c/spdk/spdk/+/2536
https://review.spdk.io/gerrit/c/spdk/spdk/+/2537/1
https://review.spdk.io/gerrit/c/spdk/spdk/+/2538/1
https://review.spdk.io/gerrit/c/spdk/spdk/+/2539/1
https://review.spdk.io/gerrit/c/spdk/spdk/+/2540/1
https://review.spdk.io/gerrit/c/spdk/spdk/+/2541/1
https://review.spdk.io/gerrit/c/spdk/spdk/+/2542/1

Will you review or use them as a reference?

I hope they are sufficiently simple and any help for all as Ben said.

Thanks,
Shuhei


________________________________
差出人: Hari Kadayam <harihara.kadayam(a)gmail.com>
送信日時: 2020年5月19日 6:25
宛先: spdk(a)lists.01.org <spdk(a)lists.01.org>
件名: [SPDK] Re: SPDK Thread and Nvmf QPair migration

Thanks Shuuhei and Ben for your response. We will do it as you suggested. I did remember seeing SPDK_THREAD_OP_RESCHED as in the spdk_thread_init method. I guess we will be implementing scale up/down feature slightly later and will look to your reactor code as reference.

Thanks
Hari
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