[The following notes a problem with how a test was done.
I omit the rest of the material.]
On 2018-Jan-7, at 2:09 AM, blubee blubeeme <gurenchan at gmail.com> wrote:
. . .
> This is a larger file, not the largest but hey
> L(q) ops/s r/s kBps ms/r w/s kBps ms/w d/s kBps ms/d
> %busy Name
> 0 4 0 0 0.0 2 8 0.0 0 0 0.0
> 0.1| nvd0
> 0 0 0 0 0.0 0 0 0.0 0 0 0.0
> 0.0| md99
> 128 982 1 32 58.8 981 125428 110.5 0 0 0.0
> 100.0| da1
. . .
Note that almost complete lack of kBps near r/s but the large
kBps near w/s.
It appears that the file has been cached in RAM and is not
being read from media at all. So this test is of a RAM to
disk transfer, not disk to disk, as far as I can tell.
You need to avoid re-reading the same file unless you
dismount and remount between tests or some such. Or
just use a different file not copied since booting (that
file may or may not be a previous copy of the same file
See if you can get gstat -pd results that show both
read kBps and write kBps figures.
markmi at dsl-only.net
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