On 3/3/21 7:03 AM, Jarkko Sakkinen wrote: > Background > ========== > > EPC section is covered by one or more SRAT entries that are associated with > one and only one PXM (NUMA node). The current implementation overheats a Overheats? > single NUMA node, because sgx_alloc_epc_page() always starts looking for > pages from the same EPC section everytime. "every time" > Only within a section it does pick pages in FIFO fashion, i.e. the oldest > freed in that section is the EPC page given back to the caller. That does > not do any good, as the pages in the same node are performance-wise equal. I'm not sure why all of this is relevant and it doesn't really tell me anything about this patch's place in the *series*. Why are we destroying all of the per-node structures just before adding NUMA support? > Replace local lists with a single global free page list, from which pages > are borrowed in FIFO fashion.
