Re: [zfs-discuss] ZFS compression / ARC interaction

2006-12-08 Thread Darren J Moffat
Mark Maybee wrote: Yup, your assumption is correct. We currently do compression below the ARC. We have contemplated caching data in compressed form, but have not really explored the idea fully yet. The same applies to encryption, the current play is to encrypt just after where we currently

[zfs-discuss] ZFS compression / ARC interaction

2006-12-07 Thread Andrew Miller
Quick question about the interaction of ZFS filesystem compression and the filesystem cache. We have an Opensolaris (actually Nexenta alpha-6) box running RRD collection. These files seem to be quite compressible. A test filesystem containing about 3,000 of these files shows a compressratio

Re: [zfs-discuss] ZFS compression / ARC interaction

2006-12-07 Thread Mark Maybee
Andrew Miller wrote: Quick question about the interaction of ZFS filesystem compression and the filesystem cache. We have an Opensolaris (actually Nexenta alpha-6) box running RRD collection. These files seem to be quite compressible. A test filesystem containing about 3,000 of these files

Re: [zfs-discuss] ZFS compression / ARC interaction

2006-12-07 Thread Wee Yeh Tan
On 12/8/06, Mark Maybee [EMAIL PROTECTED] wrote: Yup, your assumption is correct. We currently do compression below the ARC. We have contemplated caching data in compressed form, but have not really explored the idea fully yet. Hmm... interesting idea. That will incur CPU to do a decompress

Re: [zfs-discuss] ZFS compression / ARC interaction

2006-12-07 Thread Mike Gerdts
On 12/7/06, Andrew Miller [EMAIL PROTECTED] wrote: Quick question about the interaction of ZFS filesystem compression and the filesystem cache. We have an Opensolaris (actually Nexenta alpha-6) box running RRD collection. These files seem to be quite compressible. A test filesystem