Messages in this thread | | | Date | Sun, 27 May 2001 14:39:30 -0700 | From | Fabio Riccardi <> |
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Alan Cox wrote:
> > > mm: critical shortage of bounce buffers. > > > > Indeed this message has been pestering me in all the recent .4-acx kernels when > > the machine is under heavy FS pressure. > > > > In these kernels I observe a significative (5-10%) performance degradation as > > soon as the FS cache fills up all the available memory, at this moment "kswapd" > > Its there to prove we had a problem
granted
> > 2.4.2-acx and early 2.4.3-acx kernles were much better in this respect and a lot > > more stable. > > Hit any 2.4 kernel pre 2.4.5 vanilla [maybe fixed] and you will break bigmem > that way.
I've been using many kernels (I upgrade every week or so) and as far as I can recollect I started experiencing serious performance problems with the 2.4.4 series. I'm double checking my data right now with older kernels.
- Fabio
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