[Samba] Big performance difference between smbclient put/get

[James Peach]

On 4/13/06, Henrik Zagerholm <henke at mac.se> wrote:
> Hi list,
>
> I'm using Samba 3.0.21 on a FC4 box.
>
> When copying files using smbclient I get huge speed differences
> between put and get commands.
>
> smb: \> put backup.tar
> putting file backup.tar as \backup.tar (543.0 kb/s) (average 543.0 kb/s)
> smb: \> get backup.tar
> getting file \backup.tar of size 31549440 as backup.tar (7681.4 kb/s)
> (average 7681.4 kb/s)
> smb: \> put backup.tar
> putting file backup.tar as \backup.tar (512.5 kb/s) (average 527.3 kb/s)
> smb: \>
>
>
> Get => 7681.4 kb/s
> Put => 530 kb/s
>
> Any reason why?

Could be anything. In general, there is no reason to expect reads and
writes to achieve thta same bandwidth, and a mixed read/write workload
will be different again. The reasons for this particular result could
be in smbclient or they could be in the I/O stack on the server or the
client.

--
James Peach | jorgar at gmail.com