Hello,

I have noticed similar things.  I have always attributed the slower
speed on Windows due to the fact that Microsoft hired the best students
from the best schools but most of them knew nothing about programming
and programming history (in particular Unix), thus these geniuses
re-invented the OS wheel in designing and building a monolithic
operating system that took about 10 times as much code as it took Unix
(and subsequently Linux).  To me it is not surprising that Windows had
more bugs than Linux (despite huge advances, it probably still has more
bugs).  In any case, programming Windows for a Linux programmer is a
nightmare -- 10 times harder to do almost anything, because there are
far more OS calls; they all have different arguments; many of which are
not well or not at all document, ...

So, I have just attributed this to being normal Windows inefficiencies.

Of course, the above is sort of a gut feeling.  Perhaps someone can do
some real performance testing and figure out what is really going on.

Best regards,
Kern

On 2/28/19 8:22 PM, Peter Milesson wrote:
> Hi folks,
>
> I'm backing up 2 servers with Bacula, one with Windows 2016, the other
> one with CentOS. The hardware is described below. The Windows server
> is much more powerful than the Linux server in all respects, and
> should theoretically deliver data to the Bacula server at a much
> higher rate. But in reality, the Linux server delivers data about 7
> times faster over the network, than the Windows server.
>
> Is this completely normal, or should I start to check up the Windows
> server for problems?
>
> Best regards,
>
> Peter
>
>
> Windows server (file server, RDP-server, Hyper-V host with 2 very
> lightly loaded VMs)
> =====================================================================
> Hardware: HP DL180 Gen9, Intel Xeon E5-2683v4, 48GB RAM, Smart Array
> P440 Controller, 6x SAS 1GB (7200 rpm, 12 Gb/s) in RAID5
> Network: 2x 10GbE to HPE 1950 switch (LACP)
> OS: Windows 2016 (build 1607)
> Throughput to Bacula server: 23-Feb 08:52 MySd JobId 991: Elapsed
> time=00:26:09, Transfer rate=4.071 M Bytes/second
>
>
> Linux server (plain file server with Samba)
> ==================================
> Hardware: HP DL120 Gen9, Intel Xeon E5-2603v3, 8GB RAM, HP Dynamic
> Smart Array B140i SATA Controller 2x SATA 2GB (7200 rpm) in RAID1
> Network: 2x 1Gb to HPE 1950 switch (LACP)
> OS: CentOS Linux 7.5 (1804)
> Throughput to Bacula server: 23-Feb 08:26 MySd JobId 990: Elapsed
> time=00:26:08, Transfer rate=28.29 M Bytes/second
>
>
> Bacula server
> ===========
> Hardware: standard motherboard with a 6-core AMD FX-6300 CPU, 4xSATA
> 8GB (7200 rpm) in RAID10
> Network: Tehuti 10GbE NIC to ProCurve 2910al switch
> OS: CentOS Linux 7.6 (1810)
> Bacula server throughput to the RAID array: ca. 60 Mbytes/second
>
> All switches are connected to our 10Gb/s optical network backbone.
>
>
>
> _______________________________________________
> Bacula-users mailing list
> Bacula-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bacula-users
>




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