Slower Smart scan times

Discussion in 'ESET NOD32 Antivirus/Smart Security Beta' started by Matthijs5nl, May 7, 2011.

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  1. Matthijs5nl

    Matthijs5nl Guest

    Hello all,

    My scan times (Smart scan) are really a lot slower in comparison with ESS 4.2.
    So either there are performance issues with the scanning engine, or the default Smart scan profiles have drastically changed. Both on ESS 4.2 and ESS 5.0 beta I used completely default installations with completely default scan profiles. On both version I made exactly one change in the settings: disabling the splash startup screen.

    I performed three Smart scans now with the beta.

    First scan: total scanning time 00:42:09 - number of scanned objects 488737
    Second scan: total scanning time 00:41:28 - number of scanned objects 488345
    Third scan: total scanning time 00:41:07 - number of scanned objects 488160

    On ESS 4.2 my Smart scan times averaged 00:33:30 and the number of scanned objects were some lower if I remember correctly.

    Are you guys experiencing the same?
  2. Thankful

    Thankful Savings Monitor

    Feb 28, 2005
    New York City
    I'm running custom scan with smart optimization and the scan times are about the same as version 4.2. I don't usually run smart scans.
    Last edited: May 7, 2011
  3. yongsua

    yongsua Registered Member

    Feb 9, 2011
    You must know this
  4. IcePanther

    IcePanther Registered Member

    May 28, 2005
    (nearby) Paris, France

    It would seem logical that, if ESS 5.0 scans more objects than 4.2, it takes more time to do so.
    Anyway, I ran a full system scan (custom parameters, same as in v 4.2) and didn't notice a big difference.
  5. c2d

    c2d Registered Member

    Sep 26, 2007
    My results:
    First scan: total scanning time 00:19:08 - number of scanned objects 58 226
    Second scan: total scanning time 00:03:19 - number of scanned objects 58 034
    Third scan:total scanning time 00:01:58-number of scanned objects 58 020

    it looks ok
  6. Matthijs5nl

    Matthijs5nl Guest

    As you guys can see the scans were performed with different virus signature database versions, that is why you don't see the effect of smart optimization.
    But that is not the point, the point is that Smart scans without the effect of smart optimization (so after a virus signature database update and therefore a reset of the cache) scan are around 8 minutes or 24% slower with version 5 in comparison with version 4.2, both with default setup.
  7. nodyforever

    nodyforever Registered Member

    Oct 30, 2007
    PT / Lisbon
    my scan (custom scan) past documents:

    1º - 2 sec - enable smart optimization

    2º - 20 sec - disabled smart optimazation

    Attached Files:

    Last edited: May 7, 2011
  8. Matthijs5nl

    Matthijs5nl Guest

    I performed two more scans, and scans have speeded up and number of scanned objects have gone down. So I think I was worried about nothing and that after two (or something like that) more scans Scan speed is on par again with version 4.2.

    Fourth scan: total scanning time 00:38:33 - number of scanned objects 463708
    Fifth scan: total scanning time 00:35:31 - number of scanned objects 432147
  9. toxinon12345

    toxinon12345 Registered Member

    Sep 8, 2010
    Managua, Nicaragua
    ThreatSense engine speed need to be improved while scanning clean files
  10. Marcos

    Marcos Eset Staff Account

    Nov 22, 2002
    Sounds like you're not talking about v5 which has improved overall scanning of files (especially clean files) manyfold. Just make sure that you have Smart optimization enabled for the scan profile you use and cloud is enabled as well.
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