Adding -XX:+CompactStrings seems reasonable to me. (And I think it's a
betters solution than, say, increasing -Xmx to allow running without
compact strings.)
-Brent
On 3/17/20 10:46 AM, Brian Burkhalter wrote:
OK, I am fine with that. I’ll leave it open for the moment though in case
anyone else has a comment.
Brian
On Mar 17, 2020, at 10:39 AM, Andrew Leonard <andrew_m_leon...@uk.ibm.com>
wrote:
I see what you mean, but it's not really the point of the the BigInteger test,
which is testing for an Arithmetic exception:
The problem test is the one for 8021204 which constructs a String of "0"'s 2*31 long! which if you
use 2bytes for each "0" is very likely to run out of memory! The problem is a "bug" in
the testcase in that it doesn't quite ensure the environment is capable of running the test, by ensuring
1byte per char helps ensure that. Hotspot is that by default. I also suspect OOME is not certain either
necessarily.
Andrew Leonard
Java Runtimes Development
IBM Hursley
IBM United Kingdom Ltd
internet email: andrew_m_leon...@uk.ibm.com
From: Brian Burkhalter <brian.burkhal...@oracle.com>
To: Andrew Leonard <andrew_m_leon...@uk.ibm.com>
Cc: Java Core Libs <core-libs-dev@openjdk.java.net>
Date: 17/03/2020 15:48
Subject: [EXTERNAL] Re: Sponsor Request: 8241097:
java/math/BigInteger/largeMemory/SymmetricRangeTests.java requires
-XX:+CompactStrings
To clarify, could the compact strings setting be detected and maybe add another
@run tag and expect an OOME? Not sure this is critical.
Brian
On Mar 17, 2020, at 8:06 AM, Brian Burkhalter <brian.burkhal...@oracle.com
<mailto:brian.burkhal...@oracle.com>> wrote:
You’re welcome.
I see. Let’s leave this hang out a bit for further comment. Also, is a test
possible, or a modification of an existing test?
Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU