linux-kernel - Re: [PATCH] nvme/tcp: Add support to set the tcp worker cpu affinity

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Message-ID: <8310edb2-84cf-6211-f37d-d8f3df1e2320@nvidia.com>
Date:   Tue, 18 Apr 2023 03:58:32 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     Sagi Grimberg <sagi@...mberg.me>, Li Feng <fengli@...rtx.com>
CC:     "lifeng1519@...il.com" <lifeng1519@...il.com>,
        "open list:NVM EXPRESS DRIVER" <linux-nvme@...ts.infradead.org>,
        Christoph Hellwig <hch@....de>,
        Keith Busch <kbusch@...nel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Jens Axboe <axboe@...com>
Subject: Re: [PATCH] nvme/tcp: Add support to set the tcp worker cpu affinity


> - It is not backed by performance improvements, but more importantly
> does not cover any potential regressions in key metrics (bw/iops/lat)
> or lack there of.
>

I've already asked for this, without seeing performance numbers
and any regression for general usecase it is hard to justify this.

-ck