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Re: [Qemu-devel] [RFC PATCH] tcg/softmmu: Increase size of TLB cache
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [RFC PATCH] tcg/softmmu: Increase size of TLB cache |
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Date: |
Mon, 24 Jul 2017 23:19:55 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 24/07/2017 23:03, Pranith Kumar wrote:
> This patch increases the number of entries we allow in the TLB. I went
> over a few architectures to see if increasing it is problematic. Only
> armv6 seems to have a limitation that only 8 bits can be used for
> indexing these entries. For other architectures, I increased the
> number of TLB entries to a 4K-sized cache.
>
> Signed-off-by: Pranith Kumar <address@hidden>
How did you benchmark this, and can you plot (at least for x86 hosts)
the results as CPU_TLB_BITS_MAX grows from 8 to 12?
Thanks,
Paolo