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

[David Holmes]

For the record I confused the bug Chris was referring to with 8148987.

A backport of 8165153 is needed.

David
-----


David Holmes david.holmes at oracle.com
Fri Sep 16 01:45:32 UTC 2016
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
 >>>
 >