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doc: clarify arch support for power platforms #12679

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Add specifics as to the level of hardware supported for
power platforms. Power 8 is the first processor level to
support ppc little endian. Set the minimum level
for AIX to Power7 for Node version 8 and later.
This will allow the potential to leverage new instructions
and optimizations going forward. We have spoken to the
AIX team and they agree this makes sense. Earlier processor
levels will continue to be supported for version 4.x and 6.x
on AIX.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • documentation is changed or added
  • commit message follows [commit guidelines]
Affected core subsystem(s)

doc

Add specifics as to the level of hardware supported for
power platforms.  Power 8 is the first processor level to
support ppc little endian.  Set the minimum level
for AIX to Power7 for Node version 8 and later.
This will allow the potential to leverage new instructions
and optimizations going forward.  We have spoken to the
AIX team and they agree this makes sense. Earlier processor
levels will continue to be supported for version 4.x and 6.x
on AIX.
@nodejs-github-bot nodejs-github-bot added build Issues and PRs related to build files or the CI. doc Issues and PRs related to the documentations. labels Apr 26, 2017
@mhdawson mhdawson requested a review from gibfahn April 26, 2017 21:54
BUILDING.md Outdated
| GNU/Linux | Tier 2 | kernel >= 3.13.0, glibc >= 2.19 | ppc64le | |
| AIX | Tier 2 | >= 7.1 TL04 | ppc64be | |
| GNU/Linux | Tier 2 | kernel >= 3.13.0, glibc >= 2.19 | ppc64le, >=power8 | |
| AIX | Tier 2 | >= 7.1 TL04 | ppc64be, >=power7 | |
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@gibfahn gibfahn Apr 27, 2017

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Nit: can you remove the commas, elsewhere they seem to be used as or (x64, arm = x64 or arm, ppc64le >=power8 means ppc64le and power8)?

ppc64le, >=power8 -> ppc64le >=power8
ppc64be, >=power7-> ppc64be >=power7

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@gibfahn pushed change to address comments.

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gibfahn commented Apr 28, 2017

Landed in 71911be

@gibfahn gibfahn closed this Apr 28, 2017
gibfahn pushed a commit that referenced this pull request Apr 28, 2017
Add specifics as to the level of hardware supported for
power platforms.  Power 8 is the first processor level to
support ppc little endian.  Set the minimum level
for AIX to Power7 for Node version 8 and later.
This will allow the potential to leverage new instructions
and optimizations going forward.  We have spoken to the
AIX team and they agree this makes sense. Earlier processor
levels will continue to be supported for version 4.x and 6.x
on AIX.

PR-URL: #12679
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Gibson Fahnestock <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
@jasnell jasnell mentioned this pull request May 11, 2017
@gibfahn gibfahn mentioned this pull request Jun 15, 2017
3 tasks
@mhdawson mhdawson deleted the addAIXarch branch June 28, 2017 19:24
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6 participants