I was one of the first to ring praises to the irqtune package which
improved
ppp performance in the 2.0.14-2.0.18 kernels at least. Now, with the
2.0.23
kernel, my ppp performance is outstanding, without the irqtune facility
loaded.
In fact, loading the irqtune seems to hurt the performance now. I
noticed some
changes in the tcp/ip stuff in regard to interrupts, maybe that in some
way
countered the function of irqtune by blocking when the serial interrupts
were
taking place. I haven't really looked at the code, I just browse the
patches,
but that's my theory on that instance.
Whatever has taken place, I applaud you. If things remain as they are I
will
not bitch ever again about ppp performance! :-)
---russ