Thanks Stefan...
SO, you just recommend to play only with max-cache-entries...? I have 4GB ram and Xeon CPU. is it possible to cache the entries on disk?? is it recommended also? > Date: Mon, 7 Feb 2011 10:45:51 +0100 > From: zaph...@zaphods.net > To: maroon_ibra...@hotmail.com > CC: pdns-users@mailman.powerdns.com > Subject: Re: [Pdns-users] PDNS Recursor on Debian / Low performance > !!!URGENT!!!! > > On Mon, Feb 07, 2011 at 09:38:42AM +0000, Maroon Ibrahim wrote: > ... > > AS for the recursor.conf... I still didn't touch it.... what is your best > > recommendation to have the opimum cache?? > > > > Please advise.... > > It depends on how much RAM you can spare. > Setting max-cache-entries=1000000 will use around 300MB on i386 and ~550MB on > x86_64. Leaving this unset (i.e. 0) the cache will have the potential to > outgrow your machines available memory hence causing it to swap resulting in > very bad performance obviously. > Most ISP setups are fine with sticking to 1000000 entries, 2000000 will give > you about 3-5% more cache hits depending on your load pattern ofc. > > Stefan > -- > "People say I shouldn't frown because it uses more muscles than smiling. > Then I point out that Americans need their exercise." > - anonymous
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