RFR (M) 8234510: Remove file seeking requirement for writing a heap dump

[Schmelter, Ralf]

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 at oracle.com> 
Sent: Montag, 25. November 2019 18:11
To: Schmelter, Ralf <ralf.schmelter at sap.com>; OpenJDK Serviceability <serviceability-dev at openjdk.java.net>; hotspot-runtime-dev at 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