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Date:   Thu, 12 May 2022 23:54:23 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Allen Pais <apais@...ux.microsoft.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        olivier.dautricourt@...lia.com, sr@...x.de,
        Vinod Koul <vkoul@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        linux-hardening@...r.kernel.org, ludovic.desroches@...rochip.com,
        tudor.ambarus@...rochip.com, f.fainelli@...il.com,
        rjui@...adcom.com, sbranden@...adcom.com,
        bcm-kernel-feedback-list@...adcom.com, nsaenz@...nel.org,
        paul@...pouillou.net, Eugeniy.Paltsev@...opsys.com,
        gustavo.pimentel@...opsys.com, vireshk@...nel.org,
        leoyang.li@....com, zw@...kernel.org, wangzhou1@...ilicon.com,
        shawnguo@...nel.org, s.hauer@...gutronix.de,
        sean.wang@...iatek.com, matthias.bgg@...il.com, afaerber@...e.de,
        mani@...nel.org, logang@...tatee.com, sanju.mehta@....com,
        daniel@...que.org, haojian.zhuang@...il.com,
        robert.jarzmik@...e.fr, agross@...nel.org,
        bjorn.andersson@...aro.org, krzysztof.kozlowski@...aro.org,
        green.wan@...ive.com, orsonzhai@...il.com, baolin.wang7@...il.com,
        zhang.lyra@...il.com, patrice.chotard@...s.st.com, wens@...e.org,
        jernej.skrabec@...il.com, samuel@...lland.org,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/1] drivers/dma/*: replace tasklets with workqueue

On Fri, May 6, 2022 at 7:43 PM Allen Pais <apais@...ux.microsoft.com> wrote:

>  - Concerns regarding throughput, would workqueues be as efficient as tasklets (Vinod)

You need to ask the scheduler people about this.

The workqueues goes deep into the scheduler and I can't make
out how they are prioritized, but they are certainly not treated
like any other task.

Yours,
Linus Walleij

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