>-----Original message----- > From: Timothy J Massey [tmas...@obscorp.com] > Sent: den 3 november 2011 1:44 > To: General list for user discussion, questions and support [backuppc-users@lists.sourceforge.net] >Subject: Re: [BackupPC-users] On/off again Internal Server Error 500 > >Caching the filesystem is *vitally* important for performance. But that can be done in a very small amount of RAM. Assuming a single file entry requires 100 bytes (which seems very high to >me), 300MB of RAM performing caching (which is what my backup severs usually average) will hold 3 *MILLION* files. > >Now, if you're dealing with a pool in that neighborhood, then *yes*, have at least 1GB of RAM. But for the rest of us, even 512MB of RAM is plenty.
So the below *would* warrant more RAM? Four GB RAM should be more than enough. Correct? "Pool is 1750.71GB comprising 4385533 files and 4369 directories (as of 2011-11-03 01:12)," OTOH, I didn't see much performance improvement when I went from the dual-xeon with 2 GB RAM and using ext3 to a quad-core with 4 GB RAM and ext4. The disks were faster on the quad-core, but that's to be expected when going from PATA-raids to SATA-raids I guess. -- /Sorin
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