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Re: [Qemu-devel] [RFC 6/6] cputlb: dynamically resize TLBs based on use


From: Emilio G. Cota
Subject: Re: [Qemu-devel] [RFC 6/6] cputlb: dynamically resize TLBs based on use rate
Date: Mon, 8 Oct 2018 09:46:16 -0400
User-agent: Mutt/1.9.4 (2018-02-28)

On Sun, Oct 07, 2018 at 21:48:34 -0400, Emilio G. Cota wrote:
> - 70/40% use rate for growing/shrinking the TLB does not
>   seem a great choice, if one wants to avoid a pathological
>   case that can induce constant resizing. Imagine we got
>   exactly 70% use rate, and all TLB misses were compulsory
>   (i.e. a direct-mapped TLB would have not prevented a
            ^^^
>   single miss). We'd then double the TLB size:

I meant fully associative.

                E.



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