RFR: SA: JDK-8189798: SA cleanup - part 1

2017-10-23 Thread Jini George
Hello, As a part of SA next, I am working on writing a test case which compares the fields and the types of the fields of the SA java classes with the corresponding entries in the vmStructs tables. This, to some extent, would help in preventing errors in SA due to the changes in hotspot. As a

Re: GcInfo: longest pause duration?

2017-10-23 Thread David Holmes
Hi Paul, Probably best to also include the GC mailing list here. David On 24/10/2017 2:31 AM, Hohensee, Paul wrote: I’d like to solicit opinions on reporting GC pause duration (stopped-world pause time) via JMX. This info would be useful in figuring out whether or not GC pause times are facto

Re: RFR : JDK-8044122 MBean access to the PID

2017-10-23 Thread Bernd Eckenfels
Hello, When running this privileged it means one can bypass the permission by using the MBean, is that intentional? (Besides it is already available as the JMVID) Gruss Bernd -- http://bernd.eckenfels.net From: serviceability-dev on behalf of mandy chung Sent:

Re: GcInfo: longest pause duration?

2017-10-23 Thread Jeremy Manson
Yes, this information is useful. We've done a couple of things to get at it, which folks might find interesting. 1) We extended the hsperfdata to include a large number of stats for CMS. Parsing hsperfdata is ridiculously easy, and hasn't changed in years, so we just parse it directly and report

RE: RFR : JDK-8044122 MBean access to the PID

2017-10-23 Thread Langer, Christoph
Hi Ujwal, just a minor thing: there's one space too much that sneaked in in line 72 " public default long getPid() {" of src/java.management/share/classes/java/lang/management/RuntimeMXBean.java. Best regards Christoph > -Original Message- > From: serviceability-dev [mailto:service

GcInfo: longest pause duration?

2017-10-23 Thread Hohensee, Paul
I’d like to solicit opinions on reporting GC pause duration (stopped-world pause time) via JMX. This info would be useful in figuring out whether or not GC pause times are factors in failing to meet response time SLAs. The info is of course available directly from GC logs, but parsing logs is fr

RE: RFR: JDK-8189061 - serviceability/sa/TestInstanceKlassSize.java - Unable to find instance klass for null

2017-10-23 Thread Sharath Ballal
Thanks Jini. Thanks, Sharath -Original Message- From: Jini George Sent: Monday, October 23, 2017 11:10 AM To: Sharath Ballal; serviceability-dev@openjdk.java.net Subject: Re: RFR: JDK-8189061 - serviceability/sa/TestInstanceKlassSize.java - Unable to find instance klass for null Your

RE: RFR: JDK-8189061 - serviceability/sa/TestInstanceKlassSize.java - Unable to find instance klass for null

2017-10-23 Thread Sharath Ballal
Thanks David. Thanks, Sharath -Original Message- From: David Holmes Sent: Monday, October 23, 2017 11:27 AM To: Sharath Ballal; serviceability-dev@openjdk.java.net Subject: Re: RFR: JDK-8189061 - serviceability/sa/TestInstanceKlassSize.java - Unable to find instance klass for null Lo