Yes, but this is a heap, not a VM. You're not streaming through the cache into DRAM, you're polluting the cache with dirty lines that the app would presumably

Yes, but this is a heap, not a VM. You're not streaming through the cache into DRAM, you're polluting the cache with dirty lines that the app would presumably like to be using for near-future loads. The performance impact is obviously going to depend on usage patterns, but it certainly could be much higher.