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In-Reply-To: <20211005065948.10092-1-mark-pk.tsai@mediatek.com>
References: <20211005065948.10092-1-mark-pk.tsai@mediatek.com>
Subject: Re: [PATCH] clk: make clk_core_lookup faster by using clk name hash
From:   Stephen Boyd <sboyd@kernel.org>
Cc:     mark-pk.tsai@mediatek.com, yj.chiang@mediatek.com,
        matthias.bgg@gmail.com, linux-clk@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org
To:     Mark-PK Tsai <mark-pk.tsai@mediatek.com>, mturquette@baylibre.com
Date:   Thu, 14 Oct 2021 17:44:51 -0700
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Quoting Mark-PK Tsai (2021-10-04 23:59:49)
> Compare hash value before strcmp the full name to make
> clk_core_lookup faster.
>=20
> 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?