On 23/10/2013 10:56 p.m., Omid Kosari wrote:
I am using rock on one of SSD drives to check its performance .
before choosing rock the filesystem was reiserfs because it shows good
performance in huge number of little files but i read somewhere the rock
uses one big file . so i choose ext4 with discard to got the benefits of
discard/trim .
the rock creates one file with the name rock in /cache2 directory with the
size 105906MB from begin and still it has same size . but "df " shows 27%
used and grows each day .
So what else is being added to the disk? logs? not part of rock anyway.
1. is the max-size=31000 is the maximum size rock may store ? if not what is
the max safe value ?
Absolute upper limit I think is max-size=32767. in other math: 32KB -1.
2. is my fstab line shows bellow optimal for rock ? i have created it with
"mkfs.ext4 /dev/sdb" on OCZ-VERTEX3 120GB
3. it seems the the disk is more idle since switched to rock . how to force
it use the disk more aggressive ?
Why? less waiting for disk is better.
4. the following is output of dumpe2fs of that drive . is it better to
resize the block size to 32KB which is the size of rock store size ? any
other suggestion for filesystem ?
dumpe2fs /dev/sdb | more
Amos
