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<blockquote data-quote="SpiderWeb" data-source="post: 1094821" data-attributes="member: 88686">It&#039;s very hard to tell since most AVs operate on the driver level but that also means those events are minimal. AVs rarely act independently from the system. Whatever the system reads, the AV reads in the same process if that makes sense. Imagine the OS&nbsp; as a person, the AV is sitting on his shoulder seeing the same thing he&#039;s seeing simultaneously The AV doesn&#039;t have to read it twice. This piggybacking creates more work for CPU and requires more RAM, but it&#039;s not creating more reads. The only time AVs do create separate read events is during scheduled or more in depth scans of new or compressed files you access. But, these also come with the benefit of indirectly data scrubbing. Basically you want to regularly read every sector on an SSD to recharge the cells and prevent bit rot.To directly answer your question, no direct test exists other than performance comparisons which might correlate to disk usage affecting overall system responsiveness.</blockquote>

[QUOTE="SpiderWeb, post: 1094821, member: 88686"] It's very hard to tell since most AVs operate on the driver level but that also means those events are minimal. AVs rarely act independently from the system. Whatever the system reads, the AV reads in the same process if that makes sense. Imagine the OS as a person, the AV is sitting on his shoulder seeing the same thing he's seeing simultaneously The AV doesn't have to read it twice. This piggybacking creates more work for CPU and requires more RAM, but it's not creating more reads. The only time AVs do create separate read events is during scheduled or more in depth scans of new or compressed files you access. But, these also come with the benefit of indirectly data scrubbing. Basically you want to regularly read every sector on an SSD to recharge the cells and prevent bit rot. To directly answer your question, no direct test exists other than performance comparisons which might correlate to disk usage affecting overall system responsiveness. [/QUOTE]

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