Author Topic: Avast web shield reduce internet speed  (Read 8749 times)

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Offline atomas31

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Avast web shield reduce internet speed
« on: January 16, 2011, 05:08:02 PM »
Hi,

With Avast Web shield ON my speed is reduce of 50%... For now, I had to disable web shield!

What is the problem and is there a way to use web shield without affecting our internet speed???

Thanks,

Offline Pondus

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Re: Avast web shield reduce internet speed
« Reply #1 on: January 16, 2011, 05:30:29 PM »
how do you measure the speed loss...

Offline atomas31

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Re: Avast web shield reduce internet speed
« Reply #2 on: January 16, 2011, 06:01:06 PM »
From speed test of my supplier (http://67.69.239.132/indexFR.html?useRegion=QC) and other (http://www.speedtest.net/... I tested it with all protection on and after with disabled proctection to finally pinpoint the problem to the web shield protection of avast!

Offline Pondus

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Re: Avast web shield reduce internet speed
« Reply #3 on: January 16, 2011, 06:08:06 PM »
The shields may effect how the speedo at speedtest.net work ?

The only way to measure this correct is to download a big file like 5 - 10 times with the shield on and take the time, and get average,  then you repete with the shields of....

you may try with this file: WinXP SP3 - 316mb
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=5b33b5a8-5e76-401f-be08-1e1555d4f3d4&displaylang=en

Offline DavidR

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Re: Avast web shield reduce internet speed
« Reply #4 on: January 16, 2011, 06:53:12 PM »
Well speedtest.net will fluctuate between tests and there will be a margin for error.

See the three images below and tell me which one had the web shield stopped on ?

All tests were run within two to three minutes.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.5.2470 (build 21.5.6354.675) UI 1.0.646/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline atomas31

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Re: Avast web shield reduce internet speed
« Reply #5 on: January 16, 2011, 07:07:08 PM »
That is why I also make test with the verification of my internet speed with my supplier tool : http://67.69.239.132/indexFR.html?useRegion=QC

As for speedtest, here's some screenshot of my result with and without webshield 

Offline DavidR

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Re: Avast web shield reduce internet speed
« Reply #6 on: January 16, 2011, 07:15:09 PM »
Since we have had no guesses so far I will put you out of your misery.

The first test (image1) was carried out with the web shield stopped, the second (image2) was with the web shield running. Whilst there is a bit of a difference I felt that it was well within the margins for error on these tests, so I ran it again with the web shield running, image3.

So I could say that my tests revealed that with the web shield running it is 40.60% faster test1 Vs test3, but I wouldn't as I know how fickle these tests are.

When I got my fast broadband installed I did a number of tests over several days to see just what my new connection would give, all of these tests were carried out with the web shield running. This image attached shows the fasted of the various tests I conducted.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.5.2470 (build 21.5.6354.675) UI 1.0.646/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline DavidR

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Re: Avast web shield reduce internet speed
« Reply #7 on: January 16, 2011, 07:27:18 PM »
That is why I also make test with the verification of my internet speed with my supplier tool : http://67.69.239.132/indexFR.html?useRegion=QC

As for speedtest, here's some screenshot of my result with and without webshield 

That is why I was saying that the tests really are a bit fickle and often bear no resemblance to real life use of the internet.

I have just run the test with the web shield running again 18.95Mb/s and it is very close the third test I did 18.18Mb/s in my first reply.

Notice in the images, my last one in this post and the last one shows a distance of 300 miles, yet the others in the first reply show < 50 miles. Now I don't know how speedtest.net arrives at these distances so if they aren't accurate how can we rely on the rest of the figures being accurate.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 21.5.2470 (build 21.5.6354.675) UI 1.0.646/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline DavidCo

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Re: Avast web shield reduce internet speed
« Reply #8 on: January 16, 2011, 07:29:50 PM »
No difference here with/without WS

Mind you, I don't like like Ookla although it's quite fun to play with it across different implementations





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Offline atomas31

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Re: Avast web shield reduce internet speed
« Reply #9 on: January 16, 2011, 08:03:24 PM »
The problem is that I could feel and see that my browsing was slower than normal. That is why I decide to run those test to see if my impression of slower speed was real or not and if it was reat to find the culprit and report it!

Here's the result with and without webshield from my ISP tools. My speed is always 6 to 8MB slower with webshield on than when webshield is off... For me, that's a bug! At least, on my system and for wich I would appreciate if Avast technical support could take a look on it and solve it!

Offline YoKenny

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Re: Avast web shield reduce internet speed
« Reply #10 on: January 16, 2011, 08:32:14 PM »
What Sympatico service package do you have ???

I have the 6MB DSL package.
E5200 2.5GHZ, 4GB RAM, 320GB HD, Windows 7 Home Premium 64bit, avast! V9.0 Free, IE10
P4 2.8GHZ, 1.5GB RAM, 40GB HD, XP Pro SP3 32bit, avast! V9.0 Free, Google Chrome
with hpHosts, MVPS HOSTS files, SpeedFan, WinPatrol PLUS

Offline atomas31

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Re: Avast web shield reduce internet speed
« Reply #11 on: January 16, 2011, 08:43:54 PM »
I have the 16Mb DSL package...

Offline mag

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Re: Avast web shield reduce internet speed
« Reply #12 on: January 16, 2011, 08:55:31 PM »
The problem is that I could feel and see that my browsing was slower than normal. That is why I decide to run those test to see if my impression of slower speed was real or not and if it was reat to find the culprit and report it!

Here's the result with and without webshield from my ISP tools. My speed is always 6 to 8MB slower with webshield on than when webshield is off... For me, that's a bug! At least, on my system and for wich I would appreciate if Avast technical support could take a look on it and solve it!
No effect here either - so if the effect exists it seems to be peculiar to your system (so far).

Offline YoKenny

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Re: Avast web shield reduce internet speed
« Reply #13 on: January 16, 2011, 09:04:17 PM »
Wow 16Mb DSL  8)

What operating system are you using ???

Maybe a tune up of your connection would help. ???

I use DrTCP on my XP Pro system:
http://www.dslreports.com/drtcp

Information on 'Tweaking' your TCP stack
http://www.dslreports.com/tweaks
E5200 2.5GHZ, 4GB RAM, 320GB HD, Windows 7 Home Premium 64bit, avast! V9.0 Free, IE10
P4 2.8GHZ, 1.5GB RAM, 40GB HD, XP Pro SP3 32bit, avast! V9.0 Free, Google Chrome
with hpHosts, MVPS HOSTS files, SpeedFan, WinPatrol PLUS

Offline bong2x

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Re: Avast web shield reduce internet speed
« Reply #14 on: January 16, 2011, 09:31:01 PM »
i feel this slow down too.

in the xp  but in win7 it is normal.  ???


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