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  1. #1
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    AVG 7.5 scan time

    Hi -

    I've run a Selected Scan, local hard drive. It took over 40 mins. I ran it again today but had to interrupt it after 11 minutes - and some 12,000 files scanned.

    Is this excessive? I don't remember it taking so long in prior versions. (Running it on XP.)

    Thank you,

  2. #2
    Super Moderator jscher2000's Avatar
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    Re: AVG 7.5 scan time

    I assume you're asking other AVG users, but as a data point, ZoneAlarm's scheduled scan (uses older Kaspersky engine) seems at least as slow.

    Maybe I should configure it to skip certain files, like enormous Photoshop (.psd) files...

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    Re: AVG 7.5 scan time

    Hi There

    I loaded the new version yesterday on to my laptop and was a little taken aback by the length of the initial scan but it was no longer than the Norton scan I use on my home PC. I switched on today and it went off on a scheduled full scan which took about 30 minutes and ran in the background whilst I was doing some work to no degradation in responsiveness. Personally, I think it is OK <img src=/S/shrug.gif border=0 alt=shrug width=39 height=15>
    Jerry

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    Re: AVG 7.5 scan time

    Thank you both for your responses. I guess my memory was way off.

    Acer

  5. #5
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    Re: AVG 7.5 scan time

    Just some comments from another AVG user.

    I can't say that I have seen an significant increase in scan time over the years I have used AVG. If I did, it would probably be due to my increasing file collection. On the other hand, during those years I once upgraded my hardware, and a faster CPU would probably decrease the scan time. But the ever growing collection of virus definitions to check my files against could maybe make it take more time to scan. And I guess they are always developing the algorithms and the scanning engine. And last, the type of files you have can have an impact on the scan time.

    When I do a "Complete Test", which I don't do as often as other on demand scanning related to downloads, email etc. due to real time, on access scanning, I scan all files. This obviously lengthen the scan time. But it is also possible to shorten it by not scanning inside archives. That is, if one has a lot of zip (and other archive) files that has been scanned before, it can be a good idea to exclude archive files for the more frequent complete tests, and maybe do a "scan all" less often.

    I think most agree that since a complete test isn't something you do every day, it doesn't bother so much if it takes 20-30 minutes once a while.

    In AVG Test Center these settings are found under Test|Complete Test Settings, or Ctrl+F4, and Selected Areas Test settings, or Ctrl+F5.

    Seems like I have not done a complete test with archives for some months, but a test without archives, 29,900 files, took 8 minutes some days ago.

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    Re: AVG 7.5 scan time

    As an addendum to my other post; obviously the type of files scanned have an impact on overall scan time (together with hardware speed), as also mentioned briefly by Jefferson. As a test I compared a Complete Test with and without archive files, see result below.

    All files, scan inside archives (Default in AVG)
    63789 files, 16 min. 45 sec

    All files, do NOT scan inside archives
    29815 files, 7 min. 26 sec

    For example, large setup files for programs, games etc, in the range 200-600 MB may contain a lot of compressed files. In the first example one such file took around 2 minutes to scan!

    So if you see a longer scan time it could be due to a larger number of files scanned (although it would have to increase quite a bit if the change in time is dramatic) or more likely the mix of files have changed (some files takes a longer time to scan). An example on the second case is some large downloaded archive files together with AVG's default setting "scan inside archives". As part of the AV scan routine it can be, as I think you know, good to clean browser cache/TIF to minimise the number of files to scan.

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