[OpenAFS] OpenAFS speed

[Sven Oehme]

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hy ,

may be i am wrong , but i see only one client accessing your System in 
case of the AFS test .
you have to use concurrent accesses to the same data , to get performance 
improvement against NFS .
to compare the speed between 1 NFS to 1 AFS client is okay and you are 
right , NFS is faster in this case .
but with multiple clients it's not and that is in fact , how you usually 
utilize a Fileserver.

Sven

--------------------------------------------------------------------------------------
Dept. 4192 , AIS Infrastructure 
Development Leader Stonehenge
Phone (+49)-6131-84-3151
Fax      (+49)-6131-84-6708
Mobil   (+49)-171-970-6664
E-Mail : oehmes@de.ibm.com
Questions on Stonehenge : stonehenge@de.ibm.com




Andrei Maslennikov <andrei@caspur.it>
06/24/2003 07:53 PM
 
        To:     Sven Oehme/Germany/IBM@IBMDE
        cc:     OpenAFS-info@openafs.org
        Subject:        Re: [OpenAFS] OpenAFS speed



On Tue, 24 Jun 2003, Sven Oehme wrote:
> it's all a question on the Hardware and fine tuning Network , Server ...

Unfortunately, this does not looks like that.. On a very performant 
hardware, we clearly see that with AFS we are protocol-bound. 

> we also have Transfer rates >25 MB/S into AFS in our Stonehenge Solution

We see 47/30 (W/R). But NFS does 80/80 and more on the same hw base.

Andrei.



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<br><font size=2 face="sans-serif">hy ,</font>
<br>
<br><font size=2 face="sans-serif">may be i am wrong , but i see only one
client accessing your System in case of the AFS test .</font>
<br><font size=2 face="sans-serif">you have to use concurrent accesses
to the same data , to get performance improvement against NFS .</font>
<br><font size=2 face="sans-serif">to compare the speed between 1 NFS to
1 AFS client is okay and you are right , NFS is faster in this case .</font>
<br><font size=2 face="sans-serif">but with multiple clients it's not and
that is in fact , how you usually utilize a Fileserver.</font>
<br>
<br><font size=2 face="sans-serif">Sven</font>
<br>
<br><font size=2 face="sans-serif">--------------------------------------------------------------------------------------<br>
Dept. 4192 , AIS Infrastructure &nbsp;<br>
Development Leader Stonehenge<br>
Phone (+49)-6131-84-3151<br>
Fax &nbsp; &nbsp; &nbsp;(+49)-6131-84-6708<br>
Mobil &nbsp; (+49)-171-970-6664<br>
E-Mail : oehmes@de.ibm.com</font>
<br><font size=2 face="sans-serif">Questions on Stonehenge : stonehenge@de.ibm.com</font>
<br>
<br>
<br>
<table width=100%>
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<td>
<td><font size=1 face="sans-serif"><b>Andrei Maslennikov &lt;andrei@caspur.it&gt;</b></font>
<p><font size=1 face="sans-serif">06/24/2003 07:53 PM</font>
<td><font size=1 face="Arial">&nbsp; &nbsp; &nbsp; &nbsp; </font>
<br><font size=1 face="sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; To:
&nbsp; &nbsp; &nbsp; &nbsp;Sven Oehme/Germany/IBM@IBMDE</font>
<br><font size=1 face="sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; cc:
&nbsp; &nbsp; &nbsp; &nbsp;OpenAFS-info@openafs.org</font>
<br><font size=1 face="sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; Subject:
&nbsp; &nbsp; &nbsp; &nbsp;Re: [OpenAFS] OpenAFS speed</font></table>
<br>
<br>
<br><font size=2><tt><br>
On Tue, 24 Jun 2003, Sven Oehme wrote:<br>
&gt; it's all a question on the Hardware and fine tuning Network , Server
...<br>
<br>
Unfortunately, this does not looks like that.. On a very performant <br>
hardware, we clearly see that with AFS we are protocol-bound. &nbsp;<br>
<br>
&gt; we also have Transfer rates &gt;25 MB/S into AFS in our Stonehenge
Solution<br>
<br>
We see 47/30 (W/R). But NFS does 80/80 and more on the same hw base.<br>
<br>
Andrei.<br>
<br>
</tt></font>
<br>
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