Hi, On 2025-06-23 16:48:27 +0200, Christoph Berg wrote: > Re: To Tomas Vondra > > Why do we try to force the pages to be allocated at all? This is just > > a monitoring function, it should not change the actual system state.
The problem is that the kernel function just gives bogus results for pages that *are* present in memory but that have only touched in another process that has mapped the same range of memory. > One-time touching might also not be enough, what if the pages later > get swapped out and the monitoring functions are called again? I don't think that's a problem, the process still has a relevant page table entry in that case. Greetings, Andres Freund
