On Wed, Sep 11, 2019 at 04:05:37PM +0100, Waiman Long wrote: > When allocating a large amount of static hugepages (~500-1500GB) on a > system with large number of CPUs (4, 8 or even 16 sockets), performance > degradation (random multi-second delays) was observed when thousands > of processes are trying to fault in the data into the huge pages. The > likelihood of the delay increases with the number of sockets and hence > the CPUs a system has. This only happens in the initial setup phase > and will be gone after all the necessary data are faulted in. Can;t the application just specify MAP_POPULATE?
