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Subject: Re: [Qemu-devel] [PATCH v2] cpu: implementing victim TLB for
 QEMUsystem emulated TLBB
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To: BALATON Zoltan <balaton@eik.bme.hu>, =?UTF-8?B?QWxleCBCZW5uw6ll?= <alex.bennee@linaro.org>
Cc: Richard Henderson <rth@twiddle.net>, Xin Tong <trent.tong@gmail.com>, QEMU Developers <qemu-devel@nongnu.org>, afaerber@suse.de

Il 24/01/2014 23:32, BALATON Zoltan ha scritto:
> On Fri, 24 Jan 2014, Alex Bennée wrote:
>> trent.tong@gmail.com writes:
>>> Attaching data in excel which could not be sent with the patch at the
>>> same time.
>>>
>> <snip>
>>
>> If you can attach the summary of the data as plain text that would be
>> useful. Not all of us have access to a Windows box with Excell!
>
> Opens on LibreOffice as well but plain text is easier to read.
>
> I wonder how much of the measured performance increase is due to the
> increased effective cache size and how much is the reduction in number
> of instructions by the victim TLB mechanism. Wouldn't it be a more fair
> measurement to use a bigger TLB size for the TLB only case that matches
> the effective size of the TLB+victim case instead of using the same TLB
> size for both?

That's quite unlikely, the TLB size is 256 while TLB+victim is 264.

Paolo