| Re: [eclipse-pmc] Proposal to move CDS Equinox adaptor (OpenJ9 class sharing) to Equinox |
Yes. We should probably also consider enhancing the launcher to automatically enable the necessary JVM options for shared classes when using OpenJ9. Or perhaps it is fine for the EPPs that include OpenJ9 to include an eclipse.ini file that sets that.
Tom
----- Original message -----
From: "Daniel Megert" <daniel_megert@xxxxxxxxxx>
Sent by: eclipse-pmc-bounces@eclipse.org
To: eclipse-pmc@xxxxxxxxxxx
Cc:
Subject: Re: [eclipse-pmc] Proposal to move CDS Equinox adaptor (OpenJ9 class sharing) to Equinox
Date: Thu, Jun 14, 2018 3:43 PM
+1, especially in the light of https://bugs.eclipse.org/bugs/show_bug.cgi?id=506244#c64 .
Dani
From: "Thomas Watson" <tjwatson@xxxxxxxxxx>
To: eclipse-pmc@xxxxxxxxxxx
Date: 14.06.2018 22:24
Subject: [eclipse-pmc] Proposal to move CDS Equinox adaptor (OpenJ9 class sharing) to Equinox
Sent by: eclipse-pmc-bounces@eclipse.org
Hello,
The OpenJ9 project will be the initial host project where the IBM Java team is contributing something called the CDS Equinox adaptor (see https://github.com/eclipse/openj9/pull/2167 ). In short, it provides a hook into the Equinox class loader to allow the Equinox class loaders to take advantage of the shared classes functionality provided by OpenJ9. This provides significant performance improvements when launching with OpenJ9 and the JVM shared classes cache is enabled.
I have discussed with the Java team and we have agreed that this code should move to Equinox. My plan is to place the shared class support directly into the Equinox framework to make it as easy as possible to realize the performance improvements when launching with OpenJ9. Any objections or concerns with me initiating a move review once this code is in the OpenJ9 project?
Tom
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