
Anti-Virus Comparative - Performance Test (Internet Security Products) – October 2014 www.av-comparatives.org
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Test cases
File copying
Some anti-virus products ignore some types of files by design/default (e.g. based on their file
extensions), or use fingerprinting technologies, which may skip already scanned files in order to
increase the speed (see comments on page 6). We copied a set of various common file types from one
physical hard disk to another physical hard disk.
Archiving and unarchiving
Archives are commonly used for file storage, and the impact of anti-virus software on the time taken
to create new archives or to unarchive files from existing archives may be of interest for most users.
We archived a set of different file types that are commonly found on home and office workstations.
The results already consider the fingerprinting/optimization technologies of the anti-virus products,
as most users usually make archives of files they have on their disk.
Encoding/transcoding
Music files are often stored and converted on home systems, and converting such files takes system
resources. Because of this, many home users may be interested to know if their anti-virus product
imposes a slowdown while converting multimedia files from one format to another. We encoded and
transcoded some multimedia files with FFmpeg and HandBrakeCLI.
Installing/uninstalling applications
We installed several popular applications with the silent install mode, then uninstalled them and
measured how long it took. We did not consider fingerprinting, because usually an application is in-
stalled only once.
Launching applications
Microsoft Office and PDF files are very common. We opened and then later closed some large docu-
ment files in Microsoft Office and some large PDF files in Adobe Acrobat Reader. The time taken for
the viewer or editor application to launch, and afterwards to close, was measured. Although we list
the results for the first opening and the subsequent openings, we consider the subsequent openings
more important, as normally this operation is done several times by users, and optimization of the
anti-virus products take place, minimizing their impact on the systems.
Downloading files
Large files are downloaded from a local server with a GUI-less browser that allows sending HTTP re-
quests in the background. Additionally, the content of several popular websites are fetched via wget,
also from a local server.
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