Leaked documents expose Avast antivirus subsidiary selling web browsing data

Re:Leaked documents expose Avast antivirus subsidiary sellin... by BlueTemplar on Monday January 27, 2020 @09:31PM (#22165913)

If only one core is busy, then it shouldn't have much of a performance impact?

[ Parent | on HN ]

Re:Leaked documents expose Avast antivirus subsidiary sellin... by the8472 on Tuesday January 28, 2020 @05:32AM (#22168080)

It's only one core pegged at 100%, practically nothing else, which means it's a sequential workload entirely blocked on defender.

[ Parent | on HN ]

Re:Leaked documents expose Avast antivirus subsidiary sellin... by BlueTemplar on Tuesday January 28, 2020 @04:01PM (#22173977)

Oh, you mean that Defender locks your thread?

[ Parent | on HN ]

Re:Leaked documents expose Avast antivirus subsidiary sellin... by the8472 on Wednesday January 29, 2020 @05:49AM (#22179206)

I don't recall seeing significant locking in the stack samples, just that the scanning happens synchronously during some IO (e.g. closing file handles) and >90% of the CPU cycles are spent on defender. Which effectively boils down to a task that should be IO-bound becoming bottlenecked by waiting on defender.

[ Parent | on HN ]