From: naruse@...
Date: 2019-09-02T06:50:02+00:00
Subject: [ruby-core:94733] [Ruby master Bug#16007] Process.clock_getres matches the clock in practice for Process::CLOCK_{PROCESS, THREAD}_CPUTIME_ID FAILED fails on armv7hl

Issue #16007 has been updated by naruse (Yui NARUSE).

Status changed from Open to Feedback

Patch is welcome

----------------------------------------
Bug #16007: Process.clock_getres matches the clock in practice for Process::CLOCK_{PROCESS,THREAD}_CPUTIME_ID FAILED fails on armv7hl
https://bugs.ruby-lang.org/issues/16007#change-81349

* Author: vo.x (Vit Ondruch)
* Status: Feedback
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.7.0dev (2019-07-15T10:39:47Z master 0c6c937904) [x86_64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
During build of Ruby 2.7.0 0c6c937904 on Fedora Rawhide, I observe following test failure on armv7hl (other arches are fine):

~~~
1)
Process.clock_getres matches the clock in practice for Process::CLOCK_PROCESS_CPUTIME_ID FAILED
Expected 10000
 not to equal 10000
/builddir/build/BUILD/ruby-2.7.0-0c6c937904/spec/ruby/core/process/clock_getres_spec.rb:30:in `block (4 levels) in <top (required)>'
/builddir/build/BUILD/ruby-2.7.0-0c6c937904/spec/ruby/core/process/clock_getres_spec.rb:4:in `<top (required)>'
2)
Process.clock_getres matches the clock in practice for Process::CLOCK_THREAD_CPUTIME_ID FAILED
Expected 10000
 not to equal 10000
/builddir/build/BUILD/ruby-2.7.0-0c6c937904/spec/ruby/core/process/clock_getres_spec.rb:30:in `block (4 levels) in <top (required)>'
/builddir/build/BUILD/ruby-2.7.0-0c6c937904/spec/ruby/core/process/clock_getres_spec.rb:4:in `<top (required)>'
Finished in 189.216527 seconds
3770 files, 30971 examples, 112151 expectations, 2 failures, 0 errors, 0 tagged
~~~

I did not observe such issue previously testing with d9f8b88b47



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