Re: 10-12% performance decrease in benchmark going from GCC8 to GCC9

2020-09-30 Thread Soul Studios
Created a bug report a while back, also have recently identified the smallest code change necessary to 'turn off' the bug and have updated with that: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96750 If anyone has any input I'd love to see this fixed. Thanks- M On 11/08/2020 12:58 am, Bill Sc

Re: 10-12% performance decrease in benchmark going from GCC8 to GCC9

2020-08-10 Thread Bill Schmidt via Gcc
On 8/10/20 3:30 AM, Jonathan Wakely via Gcc wrote: Hi Matt, The best thing to do here is file a bug report with the code to reproduce it: https://gcc.gnu.org/bugzill Thanks Also, be sure to follow the instructions at https://gcc.gnu.org/bugs/. Bill On Sat, 8 Aug 2020 at 23:01, Soul Stu

Re: 10-12% performance decrease in benchmark going from GCC8 to GCC9

2020-08-10 Thread Jonathan Wakely via Gcc
Hi Matt, The best thing to do here is file a bug report with the code to reproduce it: https://gcc.gnu.org/bugzill Thanks On Sat, 8 Aug 2020 at 23:01, Soul Studios wrote: > > Hi all, > recently have been working on a new version of the plf::colony container > (plflib.org) and found GCC9 was giv

10-12% performance decrease in benchmark going from GCC8 to GCC9

2020-08-08 Thread Soul Studios
Hi all, recently have been working on a new version of the plf::colony container (plflib.org) and found GCC9 was giving 10-12% worse performance on a given benchmark than GCC8. Previous versions of the colony container did not experience this performance loss going from GCC8 to GCC9. However