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2018 Mar 08
0
fuse vs libgfapi LIO performances comparison: how to make tests?
...me mounted locally and exported with LIO is more faster than the
same volume exported directly with LIO.
For my tests I exported the volume from the first server and mounted and
checked the volume on the second
This is the dd command:
echo 3 > /proc/sys/vm/drop_caches
dd if=/dev/urandom of=file_1G bs=1M count=1000 oflag=direct
with fuse
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 9.5597 s, 112 MB/s
direct with user:glfs
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 27.0812 s, 39.6 MB/s
I think there is something strange. I don't really know if dd is good in
order to obtain "good&q...
2007 Mar 28
20
Gzip compression for ZFS
Adam,
With the blog entry[1] you''ve made about gzip for ZFS, it raises
a couple of questions...
1) It would appear that a ZFS filesystem can support files of
varying compression algorithm. If a file is compressed using
method A but method B is now active, if I truncate the file
and rewrite it, is A or B used?
2) The question of whether or not to use bzip2 was raised in
the