I'd venture to say that Linux scalability is fantastic. This also sounds like
a repeat of a debate that happened ten years ago.
I too was intrigued by Andrew's comment about 'finishing the kernel', though
I'm guessing (albeit without ever having spoken to Andrew personally) that it
was partially in jest. What it does suggest, though, is a point that KDE
desktop developer Aaron Seigo has made recently about the focus moving up the
stack.
If we are admirably tackling the problems of hardware compatibility,
stability, scalability and we've implemented most of the important features
that belong in the kernel, then a lot of the development fire for a so-called
complete Linux system is going to have to move up the stack - into the
userland.
Indeed, adding 100 cores to my Pentium 4 isn't going to do me a damned bit of
good when Akregator goes to query some 40 RSS feeds and Kontact blocks,
refusing to process GUI events. It's also not going to make compiling a
single .c file any faster.
I have no doubt that the bright minds here on LKML will continue to find
places to improve Linux's scalability, but that certainly doesn't require
rebuilding the kernel - we're already doing remarkably well in the
scalability department.
The bottom line is that the application developers need to start being clever
with threads. I think I remember some interesting rumors about Perl 6, for
example, including 'autothreading' support - the idea that your optimizer
could be smart enough to identify certain work that can go parallel.
As dual cores and HT become more popular, the onus is going to be on the
applications, not the OS, to speed up.
Regards,
Chase Venters
On Sunday 02 October 2005 08:10 pm, Luke Kenneth Casson Leighton wrote:
> ... words ...
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