Re: TLB refill problems again?
Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 28 Dec 1998 14:26:10 +0000 (GMT)
> The data volume is tiled in memory, so the memory access patterns are
> somewhat random (though of course the same for each test run). From
> the earlier responses with the Solaris 2 measurements, I gather the
> same problem with TLB filling (namely, that it's slow) is happening.
> Does this sound like a reasonable conclusion? If so, is there
> something that we can do about it? It's an awful performance suck.
The TLB reloads on x86 are hardware and relatively cheap. Its much more
likely your problem is cache related than TLB related.
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