linux-kernel - Re: [PATCH] of: cache phandle nodes to decrease cost of of_find_node_by

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Message-ID: <9e23d32f-05a0-ce8a-41f8-9a1a3d66be37@codeaurora.org>
Date:   Thu, 1 Feb 2018 16:01:58 +0530
From:   Chintan Pandya <cpandya@...eaurora.org>
To:     Frank Rowand <frowand.list@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of: cache phandle nodes to decrease cost of
 of_find_node_by_phandle()


>> Anyways, will fix this locally and share test results.
> 
> Thanks, I look forward to the results.
> 

Set up for this time was slightly different. So, taken all the numbers 
again.

Boot to shell time (in ms): Experiment 2
[1] Base			: 14.843805 14.784842 14.842338
[2] 64 sized fixed cache	: 14.189292 14.200003 14.266711
[3] Dynamic freeable cache	: 14.112412 14.064772 14.036052

So, [3] (this patch) looks to be improving 750ms (on avg from base build).

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