Bug ID: JDK-6973570 OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging

JDK-6973570 : OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging

Type: Bug
Component: hotspot
Sub-Component: runtime
Affected Version: hs19

Priority: P3
Status: Closed
Resolution: Fixed
OS: generic
CPU: generic

Submitted: 2010-07-30
Updated: 2014-10-23
Resolved: 2011-04-23

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.

Other	JDK 6	JDK 7	Other
1.4.2_31,hs19Fixed	6u21pFixed	7Fixed	hs19Fixed

Related Reports

Relates :	JDK-6948538 - CMS: BOT walkers can fall into object allocation and initialization cracks
Relates :	JDK-6975121 - OrderAccess should use compiler intrinsics where possible
Relates :	JDK-8061964 - Insufficient compiler barriers for GCC in OrderAccess functions

Description

See comments section.

Comments

Working link to the changeset: http://hg.openjdk.java.net/jdk7/jdk7/hotspot/rev/a6bff45449bc

23-10-2014

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/a6bff45449bc

11-08-2010

EVALUATION SubCR's will be needed for other releases to which 6948538 is planned to be backported.

30-07-2010