Re: [PATCH] of: cache phandle nodes to decrease cost of of_find_node_by_phandle()
From: Chintan Pandya <hidden>
Date: 2018-02-02 05:59:29
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On 2/2/2018 12:40 AM, Frank Rowand wrote:
On 02/01/18 02:31, Chintan Pandya wrote:quoted
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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).Is this with the many debug options enabled? If so, can you repeat with a normal configuration?
Could you share me the point of doing this experiment in perf mode ? I don't have a set up for taking these numbers in perf mode. For that, I need to ask some other team and round trip follow ups. In my set up, I rely on serial console logging which gets disabled in perf mode.
Thanks, Frank
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