[PATCH v5 1/8] Documentation: arm: define DT cpu capacity-dmips-mhz bindings
From: broonie@kernel.org (Mark Brown)
Date: 2016-06-15 14:05:11
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On Wed, Jun 15, 2016 at 11:17:50AM +0100, Juri Lelli wrote:
+CPU capacities are obtained by running a suitable benchmark. This binding makes +no aspersions on the validity or suitability of any particular benchmark, the +final capacity should, however, be:
Makes no guarantees. An aspersion is an insult!
+CPU capacities are obtained by running the Dhrystone benchmark on each CPU at +max frequency. The obtained DMIPS score is then divided by the frequency (in +MHz) at which the benchmark has been run, so that DMIPS/MHz are obtained. +Such values are then normalized w.r.t. the highest score obtained in the +system.
Perhaps worth mentioning that caches and so on should be enabled (based on previous experience with people doing bringup)? -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 473 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20160615/384c7778/attachment.sig>