Messages in this thread |  | | Date | Mon, 29 Oct 2001 15:44:23 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: please revert bogus patch to vmscan.c |
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On Mon, 29 Oct 2001, Benjamin LaHaise wrote: > > Think of CPUs with tagged tlbs and lots of entries. Or even a system that > only runs 1 threaded app. Easily triggerable. If people want to optimise > it, great. But go for correctness first, please...
"easily triggerable"?
I doubt you'll find _any_ system where you can trigger it. Think about it: in order to get the kind of VM pressure that causes page-outs, your TLB pressure will be a lot higher than _any_ CPU I have ever heard about.
256 TLB entries is considered "a lot". Tagged or not, if the VM pressure is so big that we need to swap, those 256 entries are a grain of sand in sahara.
Linus
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