which AV has least disk read write?

Discussion in 'other anti-virus software' started by testsoso, Nov 9, 2013.

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  1. testsoso

    testsoso Registered Member

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    how many disk read write does your antivirus produce?
     
  2. imdb

    imdb Registered Member

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    never measured it but i can say avira and nod32 are amongst the lightest in this department.
     
  3. woomera

    woomera Registered Member

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    not sure about least read/write ratio but:
    Agnitum has one of the highest! i advice to stay away from it.
    Emsisoft is very light and only read/writes when necessary.
    Trend Micro has constant I/O access but the numbers are not high and disk access only when its scanning.
     
  4. Taliscicero

    Taliscicero Registered Member

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    webroot and avast are the lowest that exist right now from a pure logical numbers basis.
     
  5. testsoso

    testsoso Registered Member

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    what means i/o ? is this relayed to disk accesses?

    avira free 2014:
    i/o other bytes: 3.51 G
    i/o read bytes: 3.75 G
    i/o write bytes: 106 mb
    win 7 64bit
     
  6. Brummelchen

    Brummelchen Registered Member

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    your new ssd wont die due that...
     
  7. tomazyk

    tomazyk Guest

    Nod has really small write bytes. Only updates and some log files are written to disk.
    Read bytes depend on your settings and your activity. But if you use SSD reading from disk does not wear it out.

    I agree with @Brummelchen - no antivirus will wear out your SSD (if that is your concern).
     
    Last edited by a moderator: Nov 10, 2013
  8. trjam

    trjam Registered Member

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    Dr Web
     
  9. The Seeker

    The Seeker Registered Member

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    Interesting. I'd be interested in seeing Webroot's average I/O usage in numbers.
     
  10. DX2

    DX2 Guest

  11. bigc73542

    bigc73542 Retired Moderator

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  12. DX2

    DX2 Guest

    :D:D Thanks
     
  13. xxJackxx

    xxJackxx Registered Member

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    Does anyone know of any tests with actual numbers on this subject? I would like to see actual numbers but do not have time to do any testing myself.
     
  14. The Seeker

    The Seeker Registered Member

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  15. clocks

    clocks Registered Member

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    I never found Avast that light in terms of disk i/o. Do you know custom settings?
     
  16. testsoso

    testsoso Registered Member

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    NOD32 ESS v6. has much more i/o than avira. but lower in memory usage.

    avira free's i/o usage stop to grow after an hour or so, that is interesting.

    ESS v6
    2 processes
    after an hour:
    i/o read bytes: 4.65 G
    i/o write bytes: 440 Mb
     
  17. imdb

    imdb Registered Member

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    might be. all in all, your mileage may vary.
    kind regards
     
  18. SweX

    SweX Registered Member

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    It's good and interesting with tests like these I think.

    But you say "after and hour:" but an hour of what, web browsing, or heavy duty hard work?

    I mean wouldn't it be best to have the PC do an automatic test task with each AV so that the AVs scan the same data in order to get an accurate I/O usage result. So that the testing conditions is equal to each product. :doubt:
     
  19. rinem

    rinem Registered Member

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    If you set only default extensions on all scanners and scan only files written to hdd (disable on access/execute) in Eset there will be very low disk usage.

    Also Norton and WSA disk usage is very low cause their "whitelisting" works really good (turn off scheduled scans ofc).
     
  20. pajenn

    pajenn Registered Member

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    I'm not sure what the standard way to measure I/O usage is but below is a pic from Task Manager to show the I/O stats for ZoneAlarm firewall and Qihu 360 IS processes taken one hour after my computer was last booted.
     

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  21. m0unds

    m0unds Guest

    The read/write bytes in taskmgr encompass writes to disk, writes to network interfaces, write to system buffers, etc. In essence, it's an utterly irrelevant metric if you're specifically targeting writes to disk.

    If you want to actually measure disk write impact, use resource monitor. Also, one surefire way to reduce AV app writes to disk is to disable logging.

    That being said, write endurance on modern SSDs has improved to the point that, IMO, it's not really worth a tremendous amount of concern.
     
  22. xxJackxx

    xxJackxx Registered Member

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    Yes, if that is the concern, I wouldn't be concerned. Most SSDs have a warranty beyond their useful life and if you are making backups as one should it really isn't an issue. My SSDs have been going for years with no problems and I do not baby them in the least.
     
  23. Syobon

    Syobon Registered Member

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    webroot and other cloud av do not count because... they work in the cloud. nod32 is the lightest.
     
  24. imdb

    imdb Registered Member

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    good point. :thumb:
     
  25. testsoso

    testsoso Registered Member

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    so far MSE has the lightest i/o usage.
     
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