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 <[email protected]> Sent: Montag, 25. November 2019 18:11 To: Schmelter, Ralf <[email protected]>; OpenJDK Serviceability <[email protected]>; [email protected] 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
