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List:       openjdk-serviceability-dev
Subject:    Re: RFR (M) 8234510: Remove file seeking requirement for writing a heap dump
From:       Laurence Cable <larry.cable () oracle ! com>
Date:       2019-11-26 16:39:05
Message-ID: 7b5ee1a9-6ed0-f897-9646-a2f6ee5e2742 () oracle ! com
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COOL! thx

- Larry


On 11/26/19 1:30 AM, Schmelter, Ralf wrote:
> Hi Larry,
> 
> there should be no compatibility impact. The hprof format stayed the same, just the \
> heap dump segments we write are smaller on average and more frequent. 
> I tested the created heap dumps with the jtreg test (the former jhat code), memory \
> analyzer from eclipse, heap hero (an online heap analyzer) and visual VM. All \
> without problems. 
> Best regards,
> Ralf
> 
> -----Original Message-----
> From: Laurence Cable <larry.cable@oracle.com>
> Sent: Montag, 25. November 2019 18:11
> To: Schmelter, Ralf <ralf.schmelter@sap.com>; OpenJDK Serviceability \
>                 <serviceability-dev@openjdk.java.net>; \
>                 hotspot-runtime-dev@openjdk.java.net
> Subject: Re: RFR (M) 8234510: Remove file seeking requirement for writing a heap \
> dump 
> What (if any) is the compatibility impact of this change on tools
> consuming the heap dump format?
> 
> Thanks
> 
> - Larry


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