Re: Jaws slows down network transfers, a lot!

  • From: "tribble" <lauraeaves@xxxxxxxxx>
  • To: <programmingblind@xxxxxxxxxxxxx>
  • Date: Wed, 17 Sep 2008 18:36:34 -0500

This is true -- jaws connects to the net at least once when it is started. 
Short of enforcing the license policy, I see no good reason for it to do 
this, and I have complained, but it still does it as of jaws9
I think someone posted an email a while back when this was discussed about a 
setting in jfw.ini that affected this. Perhaps someone more knowledgeable 
can specify what the settings are.
Cheers.
--le

----- Original Message ----- 
From: "Marlon Brandão de Sousa" <splyt.lists@xxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx>
Sent: Wednesday, September 17, 2008 11:25 AM
Subject: Re: Jaws slows down network transfers, a lot!


Well ... may be it's not related, but my firewall registers network
activities when JAWS 9 or 10 starts. This isn't what is happening with
previous versions of the screen reader. Using sigate personal
firewall.
Marlon

2008/9/17, Sina Bahram <sbahram@xxxxxxxxx>:
> Hi all,
>
> I've tested this with jaws 9 and jaws 10 beta.
>
> I'm on a gigabit connection with a very decent fast receiver on the other
> side of my gigabit link. 1.8 terabytes of raid 5 15,000 rpm sass drives, 
> so
> on and so forth.
>
> I want to transfer, let's say 50 gigabytes, from my laptop to the external
> machine. I'm just using straight up samba for this, not the best protocol 
> I
> know, but it illustrates the point beautifully.
>
> The specs on my machine are 7200 RPM 2.5 inch 250 gigabyte drive in a dell
> e6400 laptop running the latest 2.8ghz core 2 duo processor and four gigs 
> of
> ram, etc, etc.
>
> I'm trying to establish that hardware, is not the issue here, *smile*.
>
>
> So I fire up the transfer, and it starts up at around 25 megabytes per
> second. A rather pathetic speed, given the gigabit link, since it's only
> using 20% of the wire, but it's acceptable, for now. I allow the transfer 
> to
> continue, of course, and it inches downwards, 24, 23, 20, 18, 15, 13 ... 
> It
> goes all the way down to around 7 mb/s ... At this point I'm not even at
> more than 60% of a 100 mb/s connection, so much for gigabit.
>
> I think to myself, there has got to be something wrong with the network, 
> or
> hard drives, or something ... This is utterly unacceptable. So I stop 
> jaws,
> and have a friend read the transfer speeds.
>
> I not only climb back up, 15, 18, 20, 24, 25, but it keeps going, 28, 30,
> 35, 40, 45, 50 mb/s. I'm now at 400 megabits per second or 50 megabytes 
> per
> second over the network. This is now what I'm more used to seeing.
>
> I fire jaws back up, ... 50, 40, 38, 35, 32, 28, and so on, all the way 
> back
> down.
>
> What on Earth is going on?
>
> The most I can think of is some interrupt being delayed or some event
> blocking on something stupid jaws must be doing ... But wow.
>
> Any ideas? It sucks to have to turn jaws off every time I want to do a 
> file
> transfer.
>
> If folks think this is appropriate, feel free to forward to the jaws 
> scripts
> list or any other list.
>
> In case my email gets lost in forwards, contact me at:
>
> sbahram@xxxxxxxxx
>
> Take care,
> Sina
>
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> View the list's information and change your settings at
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>
>


-- 
When you say "I wrote a program that crashed Windows," people just
stare at you blankly and say "Hey, I got those with the system, for
free."
Linus Torvalds
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