Improving huge page handling

Posted Mar 12, 2015 15:36 UTC (Thu) by mtanski (guest, #56423)
Parent article: Improving huge page handling

Supporting large pages for file mapping would be free speedup for some userspace apps. For example large LMDB databases should see a improvement. This would be even more true if it can use 1Gb instead of 2Mb pages.

These guys were able to shave off 25% latency of very large hash tables by using 1Gb pages, I imagine the LMDB use case would be similar http://www.pvk.ca/Blog/2014/02/18/how-bad-can-1gb-pages-be/