Over NFS to non-ZFS drive
-------------------------
tar xfvj linux-2.6.21.tar.bz2
real 5m0.211s, user 0m45.330s, sys 0m50.118s
star xfv linux-2.6.21.tar.bz2
real 3m26.053s, user 0m43.069s, sys 0m33.726s
star -no-fsync -x -v -f linux-2.6.21.tar.bz2
real 3m55.522s, user 0m42.749s, sys 0m35.294s
It looks like ZFS is the culprit here. The untarring is much
faster to a single 80 GB UFS drive than a 6 disk raid-z array over
NFS.
Comparing a ZFS pool made out of a single disk to a single UFS
filesystem would be a fair comparison.
What does your storage look like?
eric
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