lkml.org 
[lkml]   [2021]   [Jul]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2 00/24] iommu: Refactor DMA domain strictness
Hi,

On Thu, Jul 29, 2021 at 3:33 PM Doug Anderson <dianders@chromium.org> wrote:
>
> I was definitely getting some inconsistencies in my tests where the
> eMMC speeds were getting into a bad state, but I don't believe it's
> related to your patch series.

I think this was just me being an idiot. I forgot that I'd been
running with KASAN, so that explains why my speeds were so much slower
than usual and probably also explains how it could get in a bad state
(I guess it also explains why sugov was eating up 30% of my CPU time
since that went away too!). No mystery here aside from why it took me
this long to realize it.

I'm now getting ~213 MB/s without forcing it to lazy and ~261 MB/s
with forcing it to lazy through sysfs (and without any other cpufreq
hacks).

-Doug

\
 
 \ /
  Last update: 2021-07-30 02:07    [W:0.307 / U:1.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site