samba - Jun 2022 - Why windows client is four times slower than linux client ?

On 6/15/22 3:11 PM, jie wang via samba wrote:
> Hi, all.
> 
> I deploy a samba server, and copy the hadoop source code to the mount
> point. When I use windows client, it cost 8 minutes, and there are about 1
> million packets. But when I use linux client, it cost 2 minutes, and there
> are only 0.2 million packets. So it seems windows client is four times
> slower than linux client. Windows and linux clients both use samba 3.1.1,
> and samba server use master code. Can anyone help explain the reason ?
> Thanks a lot.

Are you copying the files to the local storage of the client? If true 
maybe you should test only reading the files and not storing them 
locally after clearing any kine of cache. Windows filesystem layers are 
know to be slow when working with many small files, and source code tree 
tend to be like that.

Thanks the reply, I'm not copying the files to the local storage of the
client. There are 3 computers, samba server, windows client and linux
client, and copy files from windows/linux client to samba server's storage.
The network latency is almost same between windows client -> samba server
and linux client -> samba server.

On Thu, Jun 16, 2022 at 3:20 AM Robert Marcano via samba <
samba at lists.samba.org> wrote:
> On 6/15/22 3:11 PM, jie wang via samba wrote:
> > Hi, all.
> >
> > I deploy a samba server, and copy the hadoop source code to the mount
> > point. When I use windows client, it cost 8 minutes, and there are
about
> 1
> > million packets. But when I use linux client, it cost 2 minutes, and
> there
> > are only 0.2 million packets. So it seems windows client is four times
> > slower than linux client. Windows and linux clients both use samba
3.1.1,
> > and samba server use master code. Can anyone help explain the reason ?
> > Thanks a lot.
>
>
> Are you copying the files to the local storage of the client? If true
> maybe you should test only reading the files and not storing them
> locally after clearing any kine of cache. Windows filesystem layers are
> know to be slow when working with many small files, and source code tree
> tend to be like that.
>
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