On 8/2/19 5:05 AM, Vlastimil Babka wrote: > > On 8/1/19 10:33 PM, Mike Kravetz wrote: >> On 8/1/19 6:01 AM, Vlastimil Babka wrote: >>> Could you try testing the patch below instead? It should hopefully >>> eliminate the stalls. If it makes hugepage allocation give up too early, >>> we'll know we have to involve __GFP_RETRY_MAYFAIL in allowing the >>> MIN_COMPACT_PRIORITY priority. Thanks! >> >> Thanks. This patch does eliminate the stalls I was seeing. >> >> In my testing, there is little difference in how many hugetlb pages are >> allocated. It does not appear to be giving up/failing too early. But, >> this is only with __GFP_RETRY_MAYFAIL. The real concern would with THP >> requests. Any suggestions on how to test that? > > Here's the full patch, can you include it in your series? Yes. Thank you! -- Mike Kravetz
