[PD] MIDI Latency!!!

[matohawk]

Hello Pd-list,

Do you have the same problem with midi and Pure Data, 50 or 60 
miliseconds of latency?

I test it on windows and linux Ubuntu 2.6.24.

My test on windows is : Edirol UM-1SX with a midi cable out -> in and a 
small patch .

I made the same test on MAX/MSP with the same patch and I have 0 or 1 
milisecond of latency

And on linux is pd midi alsa out -> pd alsa midi in (virtual connection).

Here, you can find snapshot of the pd test :
Pd patch
http://www.th-th.fr/DOCS/Images/BlankPages/PD-Test-MIDI.png
Jack midi connection
http://www.th-th.fr/DOCS/Images/BlankPages/Connections-%20JACK-Audio-Connection%20Kit.png

Someone can you explain why?
Is that possible to reduce this?

Cheers Thomas Thiery