From fw at deneb.enyo.de  Sat Jan  4 11:01:18 2020
From: fw at deneb.enyo.de (Florian Weimer)
Date: Sat, 04 Jan 2020 12:01:18 +0100
Subject: Testing for excess allocation
Message-ID: <87eewffptt.fsf@mid.deneb.enyo.de>

Is there a way to check that a particular test does not allocate to
match memory?  I'm not interesting in fine-grained checks, the
difference is more in the order of 1 GiB with the bug vs 10 MiB
without it.

Using Epsilon with a suitable heap size (fairly low, but with some
headroom) comes to my mind.  Is there a better approach?

From shade at redhat.com  Sat Jan  4 11:48:17 2020
From: shade at redhat.com (Aleksey Shipilev)
Date: Sat, 4 Jan 2020 12:48:17 +0100
Subject: Testing for excess allocation
In-Reply-To: <87eewffptt.fsf@mid.deneb.enyo.de>
References: <87eewffptt.fsf@mid.deneb.enyo.de>
Message-ID: <d756448b-efdc-932c-bb93-046fb3f5e460@redhat.com>

On 1/4/20 12:01 PM, Florian Weimer wrote:
> Is there a way to check that a particular test does not allocate to
> match memory?  I'm not interesting in fine-grained checks, the
> difference is more in the order of 1 GiB with the bug vs 10 MiB
> without it.
> 
> Using Epsilon with a suitable heap size (fairly low, but with some
> headroom) comes to my mind.  Is there a better approach?

Depends on your use case constraints. For external test that has to fail hard on exhaustion, Epsilon
is fine. For internal (programmatic) test, polling MXBeans is fine: either
MemoryMXBean.getHeapMemoryUsage() or ThreadMXBean.getThreadAllocatedBytes() are your friends. For
JMH-driven benchmarks, internal profiles like -prof gc call these for you.

-- 
Thanks,
-Aleksey


From joe.darcy at oracle.com  Thu Jan 16 20:56:18 2020
From: joe.darcy at oracle.com (Joe Darcy)
Date: Thu, 16 Jan 2020 12:56:18 -0800
Subject: Invitation to Project Skara update and demo, January 22, 2020, 8:30
 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)
Message-ID: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>

Hello,

Project Skara [1] has been investigating migrating from Mercurial to Git 
for the OpenJDK Community's source code management needs. This work is 
described in two JEPs, JEP 357: "Migrate from Mercurial to Git" [2] and 
JEP 369: "Migrate to GitHub." [3].

Please join the Skara team on January 22, 2020 at

 ??? 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)

for an update and presentation, including a demo of the current state of 
the project, over Zoom

 ? https://oracle.zoom.us/j/4082767053

Also possible to join by phone:

 ??? +1 669 900 6833 or +1 646 558 8656 US Toll
 ??? Meeting ID: 408 276 7053
 ??? International numbers available: https://oracle.zoom.us/u/adAltN8jVN

-Joe

[1] https://wiki.openjdk.java.net/display/SKARA

[2] http://openjdk.java.net/jeps/357

[3] http://openjdk.java.net/jeps/369


From felixxfyang at tencent.com  Fri Jan 17 05:01:03 2020
From: felixxfyang at tencent.com (=?utf-8?B?ZmVsaXh4Znlhbmco5p2o5pmT5bOwKQ==?=)
Date: Fri, 17 Jan 2020 05:01:03 +0000
Subject: Invitation to Project Skara update and demo, January 22, 2020,
 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)(Internet
 mail)
In-Reply-To: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
References: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
Message-ID: <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>

Hi Joe,
  Thank you and the team for the great work on project Skara. Are we going to provide meeting minutes or video records? This time looks not workable for a few of time zones , such as GMT+8.

Thanks,
Felix Yang
?? 2020/1/17 ??4:58??discuss ?? Joe Darcy?<discuss-bounces at openjdk.java.net ?? joe.darcy at oracle.com> ??:

    Hello,
    
    Project Skara [1] has been investigating migrating from Mercurial to Git 
    for the OpenJDK Community's source code management needs. This work is 
    described in two JEPs, JEP 357: "Migrate from Mercurial to Git" [2] and 
    JEP 369: "Migrate to GitHub." [3].
    
    Please join the Skara team on January 22, 2020 at
    
         8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)
    
    for an update and presentation, including a demo of the current state of 
    the project, over Zoom
    
       https://oracle.zoom.us/j/4082767053
    
    Also possible to join by phone:
    
         +1 669 900 6833 or +1 646 558 8656 US Toll
         Meeting ID: 408 276 7053
         International numbers available: https://oracle.zoom.us/u/adAltN8jVN
    
    -Joe
    
    [1] https://wiki.openjdk.java.net/display/SKARA
    
    [2] http://openjdk.java.net/jeps/357
    
    [3] http://openjdk.java.net/jeps/369
    
    
    


From joe.darcy at oracle.com  Fri Jan 17 17:58:43 2020
From: joe.darcy at oracle.com (Joe Darcy)
Date: Fri, 17 Jan 2020 09:58:43 -0800
Subject: Invitation to Project Skara update and demo, January 22, 2020,
 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)(Internet
 mail)
In-Reply-To: <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>
References: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
 <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>
Message-ID: <7985abe1-6f40-5699-bc00-958c4c7f06e8@oracle.com>

Hi Felix,

We are considering recording the session. With the number of time zones 
where OpenJDK development occurs, a single session can't be convenient 
for all of them!

Cheers,

-Joe

On 1/16/2020 9:01 PM, felixxfyang(???) wrote:
> Hi Joe,
>    Thank you and the team for the great work on project Skara. Are we going to provide meeting minutes or video records? This time looks not workable for a few of time zones , such as GMT+8.
>
> Thanks,
> Felix Yang
> ?? 2020/1/17 ??4:58??discuss ?? Joe Darcy?<discuss-bounces at openjdk.java.net ?? joe.darcy at oracle.com> ??:
>
>      Hello,
>      
>      Project Skara [1] has been investigating migrating from Mercurial to Git
>      for the OpenJDK Community's source code management needs. This work is
>      described in two JEPs, JEP 357: "Migrate from Mercurial to Git" [2] and
>      JEP 369: "Migrate to GitHub." [3].
>      
>      Please join the Skara team on January 22, 2020 at
>      
>           8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)
>      
>      for an update and presentation, including a demo of the current state of
>      the project, over Zoom
>      
>         https://oracle.zoom.us/j/4082767053
>      
>      Also possible to join by phone:
>      
>           +1 669 900 6833 or +1 646 558 8656 US Toll
>           Meeting ID: 408 276 7053
>           International numbers available: https://oracle.zoom.us/u/adAltN8jVN
>      
>      -Joe
>      
>      [1] https://wiki.openjdk.java.net/display/SKARA
>      
>      [2] http://openjdk.java.net/jeps/357
>      
>      [3] http://openjdk.java.net/jeps/369
>      
>      
>      
>

From joe.darcy at oracle.com  Wed Jan 22 19:47:15 2020
From: joe.darcy at oracle.com (Joe Darcy)
Date: Wed, 22 Jan 2020 11:47:15 -0800
Subject: Invitation to Project Skara update and demo, January 22, 2020,
 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)(Internet
 mail)
In-Reply-To: <7985abe1-6f40-5699-bc00-958c4c7f06e8@oracle.com>
References: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
 <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>
 <7985abe1-6f40-5699-bc00-958c4c7f06e8@oracle.com>
Message-ID: <80388f73-4a14-636b-b863-5db67e7d2614@oracle.com>

Hello,

We're considering doing another iteration of the demo in a few weeks at 
a different time of day. The announcement of the second update and demo 
will be posted on this list.

Cheers,

-Joe

On 1/17/2020 9:58 AM, Joe Darcy wrote:
> Hi Felix,
>
> We are considering recording the session. With the number of time 
> zones where OpenJDK development occurs, a single session can't be 
> convenient for all of them!
>
> Cheers,
>
> -Joe
>
> On 1/16/2020 9:01 PM, felixxfyang(???) wrote:
>> Hi Joe,
>> ?? Thank you and the team for the great work on project Skara. Are we 
>> going to provide meeting minutes or video records? This time looks 
>> not workable for a few of time zones , such as GMT+8.
>>
>> Thanks,
>> Felix Yang
>> ?? 2020/1/17 ??4:58??discuss ?? Joe 
>> Darcy?<discuss-bounces at openjdk.java.net ?? joe.darcy at oracle.com> ??:
>>
>> ???? Hello,
>> ???? ???? Project Skara [1] has been investigating migrating from 
>> Mercurial to Git
>> ???? for the OpenJDK Community's source code management needs. This 
>> work is
>> ???? described in two JEPs, JEP 357: "Migrate from Mercurial to Git" 
>> [2] and
>> ???? JEP 369: "Migrate to GitHub." [3].
>> ???? ???? Please join the Skara team on January 22, 2020 at
>> ???? ????????? 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm 
>> CET (UTC+1)
>> ???? ???? for an update and presentation, including a demo of the 
>> current state of
>> ???? the project, over Zoom
>> ???? ??????? https://oracle.zoom.us/j/4082767053
>> ???? ???? Also possible to join by phone:
>> ???? ????????? +1 669 900 6833 or +1 646 558 8656 US Toll
>> ????????? Meeting ID: 408 276 7053
>> ????????? International numbers available: 
>> https://oracle.zoom.us/u/adAltN8jVN
>> ???? ???? -Joe
>> ???? ???? [1] https://wiki.openjdk.java.net/display/SKARA
>> ???? ???? [2] http://openjdk.java.net/jeps/357
>> ???? ???? [3] http://openjdk.java.net/jeps/369
>>

From jai.forums2013 at gmail.com  Thu Jan 30 14:31:53 2020
From: jai.forums2013 at gmail.com (Jaikiran Pai)
Date: Thu, 30 Jan 2020 20:01:53 +0530
Subject: Invitation to Project Skara update and demo, January 22, 2020,
 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)(Internet
 mail)
In-Reply-To: <80388f73-4a14-636b-b863-5db67e7d2614@oracle.com>
References: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
 <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>
 <7985abe1-6f40-5699-bc00-958c4c7f06e8@oracle.com>
 <80388f73-4a14-636b-b863-5db67e7d2614@oracle.com>
Message-ID: <17ccca3c-1546-9668-cd25-3c4ab21ebdbd@gmail.com>

Hello Joe,

Was this first session recorded? If so, is it available for access some
place?

-Jaikiran

On 23/01/20 1:17 am, Joe Darcy wrote:
> Hello,
>
> We're considering doing another iteration of the demo in a few weeks
> at a different time of day. The announcement of the second update and
> demo will be posted on this list.
>
> Cheers,
>
> -Joe
>
> On 1/17/2020 9:58 AM, Joe Darcy wrote:
>> Hi Felix,
>>
>> We are considering recording the session. With the number of time
>> zones where OpenJDK development occurs, a single session can't be
>> convenient for all of them!
>>
>> Cheers,
>>
>> -Joe
>>
>> On 1/16/2020 9:01 PM, felixxfyang(???) wrote:
>>> Hi Joe,
>>> ?? Thank you and the team for the great work on project Skara. Are
>>> we going to provide meeting minutes or video records? This time
>>> looks not workable for a few of time zones , such as GMT+8.
>>>
>>> Thanks,
>>> Felix Yang
>>> ?? 2020/1/17 ??4:58??discuss ?? Joe
>>> Darcy?<discuss-bounces at openjdk.java.net ?? joe.darcy at oracle.com> ??:
>>>
>>>
>>> ???? Hello,
>>> ???? ???? Project Skara [1] has been investigating migrating from
>>> Mercurial to Git
>>> ???? for the OpenJDK Community's source code management needs. This
>>> work is
>>> ???? described in two JEPs, JEP 357: "Migrate from Mercurial to Git"
>>> [2] and
>>> ???? JEP 369: "Migrate to GitHub." [3].
>>> ???? ???? Please join the Skara team on January 22, 2020 at
>>> ???? ????????? 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm
>>> CET (UTC+1)
>>> ???? ???? for an update and presentation, including a demo of the
>>> current state of
>>> ???? the project, over Zoom
>>> ???? ??????? https://oracle.zoom.us/j/4082767053
>>> ???? ???? Also possible to join by phone:
>>> ???? ????????? +1 669 900 6833 or +1 646 558 8656 US Toll
>>> ????????? Meeting ID: 408 276 7053
>>> ????????? International numbers available:
>>> https://oracle.zoom.us/u/adAltN8jVN
>>> ???? ???? -Joe
>>> ???? ???? [1] https://wiki.openjdk.java.net/display/SKARA
>>> ???? ???? [2] http://openjdk.java.net/jeps/357
>>> ???? ???? [3] http://openjdk.java.net/jeps/369
>>>

From joe.darcy at oracle.com  Thu Jan 30 18:13:13 2020
From: joe.darcy at oracle.com (Joe Darcy)
Date: Thu, 30 Jan 2020 10:13:13 -0800
Subject: Invitation to Project Skara update and demo, January 22, 2020,
 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm CET (UTC+1)(Internet
 mail)
In-Reply-To: <17ccca3c-1546-9668-cd25-3c4ab21ebdbd@gmail.com>
References: <c4954b06-e6cb-d5b1-7778-7b632caa4142@oracle.com>
 <B64B05C9-4765-44FA-B8EB-28E81E3F9510@tencent.com>
 <7985abe1-6f40-5699-bc00-958c4c7f06e8@oracle.com>
 <80388f73-4a14-636b-b863-5db67e7d2614@oracle.com>
 <17ccca3c-1546-9668-cd25-3c4ab21ebdbd@gmail.com>
Message-ID: <51f646b7-e087-eaa6-06c8-af1495441ee6@oracle.com>

Hi Jaikiran,

The first session was not recorded.

Cheers,

-Joe

On 1/30/2020 6:31 AM, Jaikiran Pai wrote:
> Hello Joe,
>
> Was this first session recorded? If so, is it available for access some
> place?
>
> -Jaikiran
>
> On 23/01/20 1:17 am, Joe Darcy wrote:
>> Hello,
>>
>> We're considering doing another iteration of the demo in a few weeks
>> at a different time of day. The announcement of the second update and
>> demo will be posted on this list.
>>
>> Cheers,
>>
>> -Joe
>>
>> On 1/17/2020 9:58 AM, Joe Darcy wrote:
>>> Hi Felix,
>>>
>>> We are considering recording the session. With the number of time
>>> zones where OpenJDK development occurs, a single session can't be
>>> convenient for all of them!
>>>
>>> Cheers,
>>>
>>> -Joe
>>>
>>> On 1/16/2020 9:01 PM, felixxfyang(???) wrote:
>>>> Hi Joe,
>>>>  ?? Thank you and the team for the great work on project Skara. Are
>>>> we going to provide meeting minutes or video records? This time
>>>> looks not workable for a few of time zones , such as GMT+8.
>>>>
>>>> Thanks,
>>>> Felix Yang
>>>> ?? 2020/1/17 ??4:58??discuss ?? Joe
>>>> Darcy?<discuss-bounces at openjdk.java.net ?? joe.darcy at oracle.com> ??:
>>>>
>>>>
>>>>  ???? Hello,
>>>>  ???? ???? Project Skara [1] has been investigating migrating from
>>>> Mercurial to Git
>>>>  ???? for the OpenJDK Community's source code management needs. This
>>>> work is
>>>>  ???? described in two JEPs, JEP 357: "Migrate from Mercurial to Git"
>>>> [2] and
>>>>  ???? JEP 369: "Migrate to GitHub." [3].
>>>>  ???? ???? Please join the Skara team on January 22, 2020 at
>>>>  ???? ????????? 8:30 am PST (UTC-8) / 4:30 pm GMT (UTC+0) / 5:30 pm
>>>> CET (UTC+1)
>>>>  ???? ???? for an update and presentation, including a demo of the
>>>> current state of
>>>>  ???? the project, over Zoom
>>>>  ???? ??????? https://oracle.zoom.us/j/4082767053
>>>>  ???? ???? Also possible to join by phone:
>>>>  ???? ????????? +1 669 900 6833 or +1 646 558 8656 US Toll
>>>>  ????????? Meeting ID: 408 276 7053
>>>>  ????????? International numbers available:
>>>> https://oracle.zoom.us/u/adAltN8jVN
>>>>  ???? ???? -Joe
>>>>  ???? ???? [1] https://wiki.openjdk.java.net/display/SKARA
>>>>  ???? ???? [2] http://openjdk.java.net/jeps/357
>>>>  ???? ???? [3] http://openjdk.java.net/jeps/369
>>>>