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any news on additional compression-schemes for zfs ?
this is interesting research-topic, imho :)
so, some more real-world tests with zfs-fuse + lzo patch :
-LZO------------------------------------------------
zfs set compression=lzo mypool
time cp /vmware/vserver1/vserver1.vmdk /mypool
real 7m8.540s
user 0m0.708s
sys 0m24.839s
zfs get compressratio mypool
NAME PROPERTY VALUE SOURCE
mypool compressratio 1.74x -
1.7G vserver1.vmdk compressed
3.0G vserver1.vmdk uncompressed
-LZJB------------------------------------------------
zfs set compression=lzjb mypool
time cp /vmware/vserver1/vserver1.vmdk /mypool
real 7m16.392s
user 0m0.709s
sys 0m25.107s
zfs get compressratio mypool
NAME PROPERTY VALUE SOURCE
mypool compressratio 1.47x -
2.0G vserver1.vmdk compressed
3.0G vserver1.vmdk uncompressed
-GZIP------------------------------------------------
zfs set compression=gzip mypool
time cp /vmware/vserver1/vserver1.vmdk /mypool/
real 12m54.183s
user 0m0.653s
sys 0m24.933s
zfs get compressratio
NAME PROPERTY VALUE SOURCE
mypool compressratio 2.02x -
1.5G vserver1.vmdk compressed
3.0G vserver1.vmdk uncompressed
btw - lzo-patch for zfs-fuse (does apply to latest zfs-fuse sources) is at
http://groups.google.com/group/zfs-fuse/attach/a489f630aa4aa189/zfs-lzo.diff.bz2?part=4
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