Reply to post: Re: This is probably...

Emulating x86: Microsoft builds granny flat into Windows 10

Roo
Windows

Re: This is probably...

"It won't. Emulation is slow. It's not gonna happen. She fell for this once before, when reporting on the release of the original ARM based Surface."

Emulation isn't necessarily "slow" these days - and hasn't been for decades, FX!32 ran PKZIP 1.5-2x quicker despite the host processor having a 30% clock speed deficit. Typical desktop apps make a lot of API calls - those can be run native, and of course code tends to spend a lot of time executing loops - so caching translated sequences of instructions yields big benefits. Folks running code on JVMs benefit from those same tricks every day - it's not rocket science any more.

Of course it's better not to require emulation in the first place - but old x86 binaries developed for 300Mhz P3's should run just dandy on a 2GHz ARM these days.

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