On Fri, Nov 04, 2016 at 12:20:11PM +0200, Niko Tyni wrote: > On Sun, Oct 30, 2016 at 11:29:10AM +0100, demerphq wrote: > > > commit fe546b38f5a7481954f2f933acf85267578058b3 > > Author: Yves Orton <demerphq@gmail.com> > > Date: Sun Oct 30 11:02:57 2016 +0100 > > > > fix #129802: sv_grow: remove the overallocation for COW exemption > > for powers of 2 > > > commit 7fdc4f5848180e5ae502e30ea783733d0da04086 > > Author: Yves Orton <demerphq@gmail.com> > > Date: Sun Oct 30 10:56:36 2016 +0100 > > > > fix perl #129802 - overallocate in concat to ensure we can COW > > > The first is potentially controversial. So it might get reverted. But > > I consider this ticket closed/fixed. > > Many thanks for your work. Just in case you didn't notice, there was > earlier correspondence on this ticket including a comment from Dave with > pretty much the same conclusions. > > As this seems to be a performance regression in 5.20 or so (and was > originally reported to Debian as one), is the fix something that could > be considered for the maint-* branches? If 7fdc4f5848 is backported to maint then whatever fix we end up with for #129997 will also need to be backported. TonyThread Previous | Thread Next