Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

cmd/compile: implement duffcopy on ppc64x #17842

Open
bradfitz opened this issue Nov 8, 2016 · 2 comments

Comments

@bradfitz
Copy link
Member

@bradfitz bradfitz commented Nov 8, 2016

implement duffcopy on ppc64x.

See TODO in code and stale pending CL https://go-review.googlesource.com/c/9684/ which could be resurrected.

/cc @minux @laboger

@bradfitz bradfitz added the Performance label Nov 8, 2016
@bradfitz bradfitz added this to the Go1.9 milestone Nov 8, 2016
@laboger

This comment has been minimized.

Copy link
Contributor

@laboger laboger commented Nov 15, 2016

Are there benchmarks to test the performance of duffzero and duffcopy? I don't see any.

I'm not sure the duff implementations would perform better than memclr and a memcpy (similar to current memmove) on ppc64x.

@bradfitz

This comment has been minimized.

Copy link
Member Author

@bradfitz bradfitz commented Nov 15, 2016

Probably src/runtime/memmove_test.go

@randall77 randall77 modified the milestones: Go1.10, Go1.9 May 31, 2017
@bradfitz bradfitz modified the milestones: Go1.10, Go1.11 Nov 28, 2017
@bradfitz bradfitz modified the milestones: Go1.11, Unplanned May 18, 2018
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
4 participants
You can’t perform that action at this time.