Re: am335x: performnce issues with FTDI and LOW_LATENCY

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Subject: Re: am335x: performnce issues with FTDI and LOW_LATENCY
From: Tony Lindgren <tony@xxxxxxxxxxx>
Date: Mon, 6 Mar 2023 09:42:00 +0200
Cc: Linux-OMAP <linux-omap@xxxxxxxxxxxxxxx>, Bin Liu <b-liu@xxxxxx>, Johan Hovold <johan@xxxxxxxxxx>
In-reply-to: <CAGm1_kuc0T5xqdQU0JVbetz+pMZb2=v=jhpgmfvZQhAiPdAG=A@mail.gmail.com>
References: <CAGm1_kuc0T5xqdQU0JVbetz+pMZb2=v=jhpgmfvZQhAiPdAG=A@mail.gmail.com>

* Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx> [230228 08:01]:
> Any idea why the performance drop is so big?

Maybe lots of interrupts and dma not being used for musb in this case?

Tony

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