[8u] RFR for JDK-6515172: Runtime.availableProcessors() ignores Linux taskset command

[Shafi Ahmad]

Adding jdk9 code change reviewer  'Daniel Daugherty' and  'Gerald Thornbrugh'.

Regards,
Shafi

> -----Original Message-----
> From: Shafi Ahmad
> Sent: Monday, September 19, 2016 10:25 AM
> To: David Holmes; Chris Plummer; hotspot-dev at openjdk.java.net
> Cc: Roger Calnan
> Subject: RE: [8u] RFR for JDK-6515172: Runtime.availableProcessors() ignores
> Linux taskset command
> 
> May I get the second review for this change.
> 
> Regards,
> Shafi
> 
> > -----Original Message-----
> > From: David Holmes
> > Sent: Friday, September 16, 2016 7:16 AM
> > To: Chris Plummer; Shafi Ahmad; hotspot-dev at openjdk.java.net
> > Subject: Re: [8u] RFR for JDK-6515172: Runtime.availableProcessors()
> > ignores Linux taskset command
> >
> > On 16/09/2016 4:17 AM, Chris Plummer wrote:
> > > You should probably include the backport of JDK-8165153 since it was
> > > introduced by JDK-6515172.
> >
> > This is a simplified backport of 6515172 suitable for Java 8. It does
> > end up being a combination of that fix and 8165153, but you can't be a
> > backport of two bugs, and there are no distinct parts that might map
> > to each bug. That was why originally this was flagged under a separate
> > bug id. But I agreed that this could be considered a simpified backport of
> 6515172.
> >
> > Thanks,
> > David
> >
> > > cheers,
> > >
> > > Chris
> > >
> > > On 9/15/16 2:51 AM, David Holmes wrote:
> > >> Looks good. Reviewed.
> > >>
> > >> Thanks,
> > >> David
> > >>
> > >> On 15/09/2016 4:40 PM, Shafi Ahmad wrote:
> > >>> Hi,
> > >>>
> > >>> Please review the backport [modified] of bug: "JDK-6515172
> > >>> Runtime.availableProcessors() ignores Linux taskset command" to
> jdk8u.
> > >>>
> > >>> Please note that the backport is not clean and we can't do as it is.
> > >>> Please note
> > >>>   1. The changes are made by 'Andreas Eriksson' who left Oracle.
> > >>>   2. There is difference in logging mechanism in jdk9 and jdk8 is
> > >>> different and file logTag.hpp doesn't exists in jdk8.
> > >>>   3. Newly added test pass after this change. It fails without
> > >>> this change.
> > >>>
> > >>> Webrev link:
> > http://cr.openjdk.java.net/~shshahma/8154324/webrev.02/
> > >>> Jdk9 bug: https://bugs.openjdk.java.net/browse/JDK-6515172
> > >>> Original patch pushed to jdk9:
> > >>> http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/c5480d4abfe4
> > >>>
> > >>> Testing: jprt and running jtreg.
> > >>>
> > >>> Regards,
> > >>> Shafi
> > >>>
> > >