Displaying 1 result from an estimated 1 matches for "vg_satabeast8_vol0".
2009 Dec 31
6
zvol (slow) vs file (fast) performance snv_130
...~35-44MB/s at 1MB blocksize writes. I then tested the underlying zfs file system with the same test and got 121MB/s. Is there any way to fix this? I really would like to have compatible performance between the zfs filesystem and the zfs zvols.
# first test is a file test at the root of the zpool vg_satabeast8_vol0
dd if=/dev/zero of=/vg_satabeast8_vol0/testing bs=1M count=32768
32768+0 records in
32768+0 records out
34359738368 bytes (34 GB) copied, 285.037 s, 121 MB/s
# create zvol
zfs create -V 100G -b 4k vg_satabeast8_vol0/lv_test
# test zvol with ''dsk'' device
> dd if=/dev/zero of=/...