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runtime: cpu suboption for GODEBUG is not documented with the others for GODEBUG #54183

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laboger opened this issue Aug 1, 2022 · 4 comments
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runtime: cpu suboption for GODEBUG is not documented with the others for GODEBUG #54183

laboger opened this issue Aug 1, 2022 · 4 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. Documentation FrozenDueToAge help wanted NeedsFix The path to resolution is known, but the work has not been done.
Milestone
Go1.20

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@laboger
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laboger commented Aug 1, 2022

I've seen mention of using GODEBUG=cpu to disable certain cpu capabilities in various issues. I expected to find it described in runtime/extern.go where the other GODEBUG suboptions are documented, but it is not.
@gopherbot gopherbot added compiler/runtime Issues related to the Go compiler and/or runtime. Documentation labels Aug 1, 2022
@ianlancetaylor ianlancetaylor added this to the Go1.20 milestone Aug 1, 2022
@ianlancetaylor ianlancetaylor added help wanted NeedsFix The path to resolution is known, but the work has not been done. labels Aug 1, 2022
@mknyszek
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mknyszek commented Aug 3, 2022

Where do you suggest the documentation should go? (I agree it should be documented.)

@ianlancetaylor
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I think it pretty much has to go in the runtime package. Which is what @laboger suggests. It's a reasonable location, and where else could it go?

@martisch
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Its currently only documented at https://go.dev/doc/diagnostics. I agree we should add it to runtime/extern.go too.

@gopherbot
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Change https://go.dev/cl/423275 mentions this issue: runtime: document GODEBUG=cpu.* in runtime package

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compiler/runtime Issues related to the Go compiler and/or runtime. Documentation FrozenDueToAge help wanted NeedsFix The path to resolution is known, but the work has not been done.
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@martisch @mknyszek @ianlancetaylor @gopherbot @laboger