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From: "Emilio G. Cota" <cota@braap.org>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: qemu-devel <qemu-devel@nongnu.org>,
	Pranith Kumar <bobby.prani@gmail.com>,
	Richard Henderson <richard.henderson@linaro.org>
Subject: Re: [Qemu-devel] ideas for improving TLB performance (help with TCG backend wanted)
Date: Mon, 1 Oct 2018 14:34:23 -0400	[thread overview]
Message-ID: <20181001183423.GA27555@flamenco> (raw)
In-Reply-To: <87va71uijc.fsf@linaro.org>

On Thu, Sep 20, 2018 at 01:19:51 +0100, Alex Bennée wrote:
> If we are going to have an indirection then we can also drop the
> requirement to scale the TLB according to the number of MMU indexes we
> have to support. It's fairly wasteful when a bunch of them are almost
> never used unless you are running stuff that uses them.

So with dynamic TLB sizing, what you're suggesting here is to resize
each MMU array independently (depending on their use rate) instead
of using a single "TLB size" for all MMU indexes. Am I understanding
your point correctly?

Thanks,

		E.

       reply	other threads:[~2018-10-01 18:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180919175423.GA25553@flamenco>
     [not found] ` <87va71uijc.fsf@linaro.org>
2018-10-01 18:34   ` Emilio G. Cota [this message]
2018-10-01 20:40     ` [Qemu-devel] ideas for improving TLB performance (help with TCG backend wanted) Richard Henderson
2018-10-02  1:54       ` Emilio G. Cota
2018-10-02  6:48     ` Alex Bennée
2018-10-02 18:09       ` Emilio G. Cota

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