Re: [Monotone-devel] Speedup chances

[Markus Schiltknecht]

Hi,

Christof Petig wrote:
> I tested Thursday's net.venge.monotone with binary ids and I don't know
> about cached pipes. But this should be easy to speed up (especially
> given that, according to Lapo, there is/was a specialized 40 digit hex
> decoder in monotone written by Graydon.

Ah, okay, so that's certainly with Zack's cached pipes. Did you test 
with '--debug'? That's doing lots more hex encoding (not decoding, though).

Some questions that arise here: Why is that specialized hex decoder so 
much faster that what's in botan? Does it have to be limited to 40 
digits? Can the botan decoder be sped up?

Another thing to keep in mind: instead of trying hard to squeeze out the 
last bits of performance from the decoder, it might rather be possible 
to avoid en- and decoding steps completely by using a binary roster 
format - thus also storing binary hashes.

Regards

Markus