Lower-latency kernels?

[Christian Jaeger <christian.jaeger@sl.ethz.ch>]

Hello

I'm quite a bit tired of all those 20-second-or-so almost-freeze 
times when untarring a big file, filtering a bunch of mails in Eudora 
under MOL, etcetc, just because the kernel 2.4.18 virtual memory 
infrastructure is paging, sorting and freeing memory or whatever and 
meanwhile also blocking processes from running that aren't involved 
in the memory stuff (and hey, I'm having 256MB, so it's not so little 
ok?). I'm even suspecting that the X crashes I'm having at least 
every few weeks could be related to this, i.e. some time sensitive 
operation in the X server gets stuck because of the kernel slowness 
and makes X crash (because of some bug that would be hidden 
otherwise).

So my question:

What are your experiences on PPC with the various lowlatency, 
preemption and maybe also O(1)scheduler patches?
Which ones are working, or crashing, and which is the best for my situation?

Thanks,
Christian.


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