My virtual machines are Linux (RHEL 5.3 64 bit ).
The RAM is of 4 GB on host server running Virtual machines. 

Regards,
Anish Kumar


-----Original Message-----
From: Pavan T C [mailto:t...@gluster.com] 
Sent: 25 June, 2011 4:03 PM
To: Anish Kumar
Subject: Re: [Gluster-users] Performance on GlusterFS

On Saturday 25 June 2011 03:56 PM, anish.b.ku...@ril.com wrote:
> Yes sure it's  74 MB .
>   I am using Gluster version 3.2.1.1
>
> In my 4 node cluster setup, one of my node on which I am performing test run 
> is physical sever of HP proliant DL 380 G5  having RHEL 5.5 OS ,is having 
> 1000Mbps network.
> Other three nodes are hosted on Windows 2008 R2 on virtual machine(VM 
> ware Application)  , host machine network is of 1Gbps

What are you virtual machines? Linux, I suppose?

A few aspects of your setup makes the comparison unfair -

1. Since you run untar on the local file system on a physical server, the is a 
possibility to see the effect of write caching.

2. Since glusterfs is working on VMs, the comparison of its performance with 
that on a physical server is not fair.

3. The VMs are hosted on a system with low network bandwidth.

4. The IO throughput inside a VM is limited by the throughput of the host file 
system, in this case - a Windows filesystem (NTFS) ?

What is the amount of RAM on the Windows system hosting the VMs?

Pavan

>
> Regards,
> Anish Kumar
>
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