Messages in this thread | | | Date | Tue, 19 Jun 2001 09:27:42 +0200 | From | "Martin.Knoblauch" <> | Subject | Re: VM: Buffer vs. Cache |
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Jonathan Morton wrote: > > > > > So, what actually is the difference between Buffered and Cached. > >Apparently quite a lot of the pages that are Cached in the evening are > >Buffered 9 houres later. > > Think about what happens in the meantime. Most distros install maintenance > scripts which run late at night (usually at midnight and/or 4am), which > perform heavy disk activity as they update databases and scan for > file-permissions security holes. Heavy disk activity usually means an > increase in buffer utilisation. Since most files are only "touched" once, > the cache is shrunk as it aren't being used very much. >
thanks to all who set me straight. Should have thought of the nightly stuff myself.
Martin -- ------------------------------------------------------------------ Martin Knoblauch | email: Martin.Knoblauch@TeraPort.de TeraPort GmbH | Phone: +49-89-510857-309 C+ITS | Fax: +49-89-510857-111 http://www.teraport.de | Mobile: +49-170-4904759 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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