[SLOF] [PATCH] Do not include the FCode evaluator by default anymore

Thomas Huth thuth at redhat.com
Wed Aug 31 17:02:20 AEST 2016

On 31.08.2016 07:44, Segher Boessenkool wrote:
> On Wed, Aug 31, 2016 at 05:00:14AM +0200, Thomas Huth wrote:
>> Commit 2fed5652819ad26627a8 ("Always include evaluator, move
>> framebuffer token init to fbuffer.fs") made sure that the FCode
>> evaluator is always included, during each boot cycle. The basic
>> idea was that we would soon be starting to support PCI cards with
>> FCode drivers on them. However, this has never happened, and so
>> this change was in vain. The bad thing is now that the inclusion
>> of the FCode evaluator also takes a lot of precious boot time,
>> e.g. when running in QEMU TCG mode, it is more than a second.
> Why is it so slow?

The time is lost in token.fs. I think it's because it is using a lot of
TICKs to set the behavior of the various tokens, and that seems to slow
things down.


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