RFR: 8205338: ZGC: LeakProfiler not yet supported

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RFR: 8205338: ZGC: LeakProfiler not yet supported

Per Liden
Disable JFR's LeakProfiler when using ZGC. There are a number of reasons
why this doesn't work yet. The LeakProfiler doesn't use the access API,
does it's own root scanning, allocates a bitmap spanning the entire
revered range, etc.

Bug: https://bugs.openjdk.java.net/browse/JDK-8205338
Webrev: http://cr.openjdk.java.net/~pliden/8205338/webrev.0

/Per
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Re: RFR: 8205338: ZGC: LeakProfiler not yet supported

Erik Gahlin
Looks good.

Erik

> Disable JFR's LeakProfiler when using ZGC. There are a number of
> reasons why this doesn't work yet. The LeakProfiler doesn't use the
> access API, does it's own root scanning, allocates a bitmap spanning
> the entire revered range, etc.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8205338
> Webrev: http://cr.openjdk.java.net/~pliden/8205338/webrev.0
>
> /Per

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Re: RFR: 8205338: ZGC: LeakProfiler not yet supported

Per Liden
Thanks Erik!

/Per

On 06/19/2018 02:32 PM, Erik Gahlin wrote:

> Looks good.
>
> Erik
>
>> Disable JFR's LeakProfiler when using ZGC. There are a number of
>> reasons why this doesn't work yet. The LeakProfiler doesn't use the
>> access API, does it's own root scanning, allocates a bitmap spanning
>> the entire revered range, etc.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8205338
>> Webrev: http://cr.openjdk.java.net/~pliden/8205338/webrev.0
>>
>> /Per
>
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Re: RFR: 8205338: ZGC: LeakProfiler not yet supported

Erik Österlund-2
In reply to this post by Per Liden
Hi Per,

Looks good.

Thanks,
/Erik

On 2018-06-19 14:23, Per Liden wrote:
> Disable JFR's LeakProfiler when using ZGC. There are a number of
> reasons why this doesn't work yet. The LeakProfiler doesn't use the
> access API, does it's own root scanning, allocates a bitmap spanning
> the entire revered range, etc.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8205338
> Webrev: http://cr.openjdk.java.net/~pliden/8205338/webrev.0
>
> /Per

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Re: RFR: 8205338: ZGC: LeakProfiler not yet supported

Per Liden
Thanks Erik#2!

/Per

On 06/20/2018 11:32 AM, Erik Österlund wrote:

> Hi Per,
>
> Looks good.
>
> Thanks,
> /Erik
>
> On 2018-06-19 14:23, Per Liden wrote:
>> Disable JFR's LeakProfiler when using ZGC. There are a number of
>> reasons why this doesn't work yet. The LeakProfiler doesn't use the
>> access API, does it's own root scanning, allocates a bitmap spanning
>> the entire revered range, etc.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8205338
>> Webrev: http://cr.openjdk.java.net/~pliden/8205338/webrev.0
>>
>> /Per
>