From robert.bissett at enterprisedb.com Wed Sep 27 20:12:34 2023 From: robert.bissett at enterprisedb.com (Bobby Bissett) Date: Wed, 27 Sep 2023 16:12:34 -0400 Subject: question about Java and VIRT memory Message-ID: Hi all, I doubt this is the right list for this, but chose it hoping there's info in the user's guide about this that I've missed or that someone can point me in the right direction. Please feel free to send me somewhere else, but just in case the question is below. A customer is running a Java application of ours that starts with -Xmx128m -- there are no problems specifically with the heap. But the process is using over 4 gig of VIRT(ual) memory according to 'top'. I didn't think that was generally an issue, but they are running with "overcommit_memory=2" on this linux system, and that 4 gig of memory is hurting things. Is there a jvm parameter to help with this? FWIW, they're running openjdk 1.8. They need to upgrade to something newer; if there's any particular version that might help with the virtual memory it would be nice to know. Thank you, Bobby Bissett -------------- next part -------------- An HTML attachment was scrubbed... URL: From dalibor.topic at oracle.com Wed Sep 27 20:52:46 2023 From: dalibor.topic at oracle.com (Dalibor Topic) Date: Wed, 27 Sep 2023 22:52:46 +0200 Subject: question about Java and VIRT memory In-Reply-To: References: Message-ID: On 27.09.2023 22:12, Bobby Bissett wrote: > Hi all, > > I doubt this is the right list for this, but chose it hoping there's > info in the user's guide about this that I've missed or that someone can > point me in the right direction. Please feel free to send me somewhere > else, but just in case the question is below. > I'd suggest the hotspot-gc-use mailing list. cheers, dalibor topic -- Dalibor Topic Consulting Product Manager Phone: +494089091214 , Mobile: +491737185961 Oracle Global Services Germany GmbH Hauptverwaltung: Riesstr. 25, D-80992 M?nchen Registergericht: Amtsgericht M?nchen, HRB 246209 Gesch?ftsf?hrer: Ralf Herrmann From robert.bissett at enterprisedb.com Wed Sep 27 20:59:32 2023 From: robert.bissett at enterprisedb.com (Bobby Bissett) Date: Wed, 27 Sep 2023 16:59:32 -0400 Subject: question about Java and VIRT memory In-Reply-To: References: Message-ID: On Wed, Sep 27, 2023 at 4:55?PM Dalibor Topic wrote: > [...] > > I'd suggest the hotspot-gc-use mailing list. > Thank you for that -- I appreciate the response to someone showing up like this with no clue of where to go. Cheers, Bobby -------------- next part -------------- An HTML attachment was scrubbed... URL: