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Author Topic: antivirus' negative impact on read/write/copy etc file speed  (Read 2977 times)

kalos

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antivirus' negative impact on read/write/copy etc file speed
« on: April 29, 2012, 03:28:31 PM »
hello

I notice that running an antivirus, has a noticably negative impact on read/write/copy etc file speed
if this is true, I suppose it is because before accessing a file, it is firstly read and scanned by the antivirus, which causes a delay

to overcome this problem, I wonder if we can run every new file sandboxed by default, so that we wont have any delay (afaik, to be honest I 've never used sandbox) and afterwards, antivirus may scan the file, or afterwards, if antivirus will not detect malicious behaviour, the file to be removed from sandbox

this way, the whole system will be more secure (since malicious file detect wont lay only to heuristics analysis, but also its real behaviour will be examined), and moreover, the whole system will be more responsive and there will be no negative impact to its performance

your opinion?

thanks!

Carol Haynes

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #1 on: April 30, 2012, 02:47:36 AM »
Would running files sandboxed have any less impact on file access times?

justice

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #2 on: April 30, 2012, 04:05:05 AM »
If this is feasible I'm sure that antivirus is already doing it?

kalos

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #3 on: April 30, 2012, 04:45:44 AM »
Would running files sandboxed have any less impact on file access times?

if you really ask me, I can't tell, I have no idea how sandbox works

eleman

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vi vi vi - editor of the beast

Carol Haynes

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #6 on: April 30, 2012, 11:27:45 AM »
Would running files sandboxed have any less impact on file access times?

if you really ask me, I can't tell, I have no idea how sandbox works

To sandbox it it has to create a sandbox environment for the file before running it and then revert everything back after it has finished. I would have thought most AV apps could do a virus check more quickly.

kalos

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #7 on: April 30, 2012, 01:07:58 PM »
Would running files sandboxed have any less impact on file access times?

if you really ask me, I can't tell, I have no idea how sandbox works

To sandbox it it has to create a sandbox environment for the file before running it and then revert everything back after it has finished. I would have thought most AV apps could do a virus check more quickly.

surely more quickly, but also more resources efficiently?

Carol Haynes

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #8 on: April 30, 2012, 01:52:15 PM »
I would have thought an AV check is quicker simply because the AV engine is already running and apart from reading it there isn't much else to do.

If your AV is slowing your system down I would say get a better/more efficient AV.

tomos

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #9 on: April 30, 2012, 06:03:15 PM »
If your AV is slowing your system down I would say get a better/more efficient AV.

FWIW, I stopped using Avira because of this. I'm now finding MS Security Essentials is slowing things down a lot more than it used to...
Tom

justice

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #10 on: May 01, 2012, 04:29:08 AM »
Maybe you have a virus  :huh:

tomos

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Re: antivirus' negative impact on read/write/copy etc file speed
« Reply #11 on: May 01, 2012, 05:11:24 AM »
Maybe you have a virus  :huh:

who, me ??? :P :)

if so neither app found anything. I know that doesnt necessarily mean much. Avira (av-pro) was last year, it always slowed things down all round - too much for my liking, also, it was on a different machine. MS seems to take a lot more CPU than it used to, and it often stalls Firefox when e.g. I'm downloading or opening a file, it usen't do this before (there was always a little lag, like with any real-time scanning). This could also be todo with new version of FF. I haven't really been keeping a good record of things so cant be sure...
Maybe I'm just being a fussy beggar ;-) it's nothing I cant live with.
Tom