On Tue, Feb 06, 2024 at 11:14:11AM +0100, Geert Uytterhoeven wrote: > On Tue, Feb 6, 2024 at 11:09 AM Mark Brown <broonie@xxxxxxxxxx> wrote: > > There is a very small niche for devices where cache syncs are a > > particularly important part of the workload where rbtree's choices might > > give better performance, especially on systems with low end CPUs. > The REGCACHE_* value is specified by the device, not by the CPU? The device is going to dominate here, the main thing is how much of the workload consists of syncs. > While some of these MFD devices are on-SoC, and thus there is some > relation between device and CPU, several others (e.g. PMICs) are > external, and thus might be present on systems with a variety of CPU > performance. > Perhaps the value should depend on some CPU heuristic instead? No.
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