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Open Source and information security mailing list archives
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Date: Mon, 18 Oct 2021 11:38:26 +0800 From: Chen-Yu Tsai <wenst@...omium.org> To: Stephen Boyd <sboyd@...nel.org> Cc: Mark-PK Tsai <mark-pk.tsai@...iatek.com>, Michael Turquette <mturquette@...libre.com>, yj.chiang@...iatek.com, Matthias Brugger <matthias.bgg@...il.com>, linux-clk <linux-clk@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" <linux-arm-kernel@...ts.infradead.org>, "moderated list:ARM/Mediatek SoC support" <linux-mediatek@...ts.infradead.org> Subject: Re: [PATCH] clk: make clk_core_lookup faster by using clk name hash On Fri, Oct 15, 2021 at 8:44 AM Stephen Boyd <sboyd@...nel.org> wrote: > > Quoting Mark-PK Tsai (2021-10-04 23:59:49) > > Compare hash value before strcmp the full name to make > > clk_core_lookup faster. > > > > It make clk driver probe 30 percent faster on the platform > > have 1483 registered clks and average clock name length 20. > > Why is clk_core_lookup() a fast path for you? Maybe because the Mediatek clock driver still does global clk name matching to resolve parents?
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