Tuesday, June 2, 2009

Fortunately, another reason why I use Ubuntu

Since I installed Ubuntu 9.04 on my work machine (and replaced Micro$oft Outlook with Evolution), I always wondered why my download speed became surprisingly a lot faster! My surprises approached a relief today when I came across a local speed test service. I tested the speed on Windows (with no firewalls or anything coming in the middle) and Ubuntu.

The result was Ubuntu achieving DOUBLE speed than Windows! Yes you read it right, DOUBLE speed on the same machine!
I will leave you with the screenshots to witness it yourself.

Windows download speed:


Ubu download speed:

The only explanation I can tell is that the TCP/IP stack default parameters on Windows are not optimally configured, while the defaults in Linux are!
Any other suggestions?

7 comments:

mahmoud said...

There could be other background stuff that are consuming bandwidth on windows.. like Windows Update check.. outlook syncronizing mail boxes.. a virus...

hammady said...

Its a new machine, no updates running, no Outlook opened, no virus...
I really am urged to think it is misconfigured TCP/IP parameters.
I can remember since Windows 98 I used to edit the registry to tweak such parameters, but I am surprised why it is not optimized by default till now!

mahmoud said...

it could be so... what about trying again after doing the same parameters optimization (law fady tab3an).. this will prove/deny the threoritical explanation.

why don't you publish notes about that tweaking w eksab feena thawab

hammady said...

Actually I am not interested in Windows tweaking at all but you can find many guides through google search.

A.Abd-ElHaffiez said...

May be it's a thread management issue. Download application is blocked by other threads.

hammady said...

Whatever reason, Micro$oft failed to set optimal defaults for me, while Ubu did.

hammady said...

Update: Another reason popped out. When I login through Windows, I get logged in to the University domain, so I get attached to a VLAN X. When I connect through Ubuntu, my machine gets unrecognised and I get attached to VLAN Y (guest vlan). So is X having bandwidth limitation or is it overloaded? I dare not ask the IT guys here!