On Mon, Jan 21, 2019 at 05:05:56PM +0700, Duy Nguyen wrote: > > It should be possible to salvage this optimization, but let's start with > > just removing the remnants. It hasn't been doing anything (except > > creating bugs) since 60a12722ac, and nobody seems to have noticed the > > performance regression. It's more important to fix the correctness > > problem clearly first. > > But muh optimization!!! You're right of course, correctness comes > first. I did try to look at this code but it's been a while and I'm > afraid I don't have anything valuable to say. I'll dig in more in the > next couple days. :) See the side-thread, and the response I just wrote to Stefan. At this point I do think it's possible, but my hope is that I could call it quits with the bugfix portion and hand it off to somebody interested in this area. I know you're juggling quite a few other series, though. -Peff