That bug is more subtle. Apparently the various ways to use VirtualAlloc is not self evident, and some variations have wildly different performance characteristics due to undocumented interactions with Event Tracing for Windows (ETW) events that get sent to anti virus products.
So it's not only the original problem of the events being handled inefficiently, it's also that the way they're generated is a bit of a black box and hard to predict without detailed performance tracing work.
That bug is more subtle. Apparently the various ways to use VirtualAlloc is not self evident, and some variations have wildly different performance characteristics due to undocumented interactions with Event Tracing for Windows (ETW) events that get sent to anti virus products.
So it's not only the original problem of the events being handled inefficiently, it's also that the way they're generated is a bit of a black box and hard to predict without detailed performance tracing work.