Re: [PATCH v4 5/5] x86: mremap speedup - Enable HAVE_MOVE_PUD

2020-10-14 Thread Ingo Molnar
* Kalesh Singh wrote: > HAVE_MOVE_PUD enables remapping pages at the PUD level if both the > source and destination addresses are PUD-aligned. > > With HAVE_MOVE_PUD enabled it can be inferred that there is approximately > a 13x improvement in performance on x86. (See data below). > >

[PATCH v4 5/5] x86: mremap speedup - Enable HAVE_MOVE_PUD

2020-10-14 Thread Kalesh Singh
HAVE_MOVE_PUD enables remapping pages at the PUD level if both the source and destination addresses are PUD-aligned. With HAVE_MOVE_PUD enabled it can be inferred that there is approximately a 13x improvement in performance on x86. (See data below). --- Test Results - The following