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Date: Sun, 15 Mar 2009 18:13:15 +0000 From: Sitsofe Wheeler <sitsofe@...oo.com> To: Alexey Fisher <bug-track@...her-privat.net> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: smart cache. ist is possible? Hi, On Sun, Mar 15, 2009 at 04:28:55PM +0100, Alexey Fisher wrote: > I found for my self how great is cache in linux. If read one file from > disk, so i don't need to do it second time, chace will do the job. It > speed up thing greatly. But i found it not working with realy big files. > Like i have 4GB RAM, so if i read a file like 4.6GB, cache won't work. Watch out - if you are doing cache tests you really want to be using drop_caches ( http://linux-mm.org/Drop_Caches ) before your "cold" runs so you can be sure that the cache really was empty before you started... -- Sitsofe | http://sucs.org/~sits/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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