"ZFS is often looked upon as an advanced, superior file-system
and one of the strong points of the Solaris/OpenSolaris platform
while most feel that only recently has Linux been able to catch-up
on the file-system front with EXT4 and the still-experimental
Btrfs. ZFS is copy-on-write, self-healing with 256-bit checksums,
supports compression, online pool growth, scales much better than
the UFS file-system commonly used on BSD operating systems,
supports snapshots, supports deduplication, and the list goes on
for the features of this file-system developed by Sun Microsystems.
In this article we are seeing how well the performance of the ZFS
file-system under PC-BSD/FreeBSD 8.1 stacks up to UFS (including
UFS+J and UFS+S) and on the Linux side with EXT4 and Btrfs.
"The first bits of the Sun ZFS benchmarks were shared yesterday
when publishing the ZFS on FreeBSD's new CAM-based ATA
infrastructure results (all of these test results in this article
are also using CAM-ATA to take advantage of modern Serial ATA drive
features). Again, the test system was a Lenovo ThinkPad T61
notebook with an Intel Core 2 Duo T9300 (Penryn) processor, 4GB of
system memory, a 100GB Hitachi HTS72201 7200RPM Serial ATA 2.0 hard
drive, and a NVIDIA Quadro NVS 140M graphics processor. The ZFS
support within FreeBSD had improved greatly with FreeBSD 8.0 and
then further matured with the FreeBSD 8.1 kernel."
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