Re: Status of Linux on sun4c?

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 15 Jun 1998 17:44:48 +0100 (BST)

> 2. About a year ago when I first started working with SPARC/Linux, there
> was a problem with sun4c machines where they would gradually slow down
> (over a period of time) to a near halt. I think the problem was
> attributed to kernel problems involving the SCSI bus. Has that been fixed
> now? If not, what is the status of debugging the problem? (Would money
> help the situation?)

Its to do with memory fragmentation. Its not fixed in 2.0.x though its better
than it was in .30. It seems to have gone away (minimal testing) on 2.1.x

> because of the tremendous speedup I get with the dcache. Apart from the
> generic changes such as the dcache, are there significant SPARC-specific
> changes in the development kernels so that they're much better?

SLAB based memory allocation

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