any plans to lock heap memory to RAM?

Thomas Viessmann thomas.viessmann at oracle.com
Mon May 26 08:03:56 UTC 2014


Hi,


are there any plans to(optionally) lock memory to RAM e.g. via memctl() 
in order to avoid
paging during GC runs?
IMO this becomes more of an issue (and not less) the bigger applications 
become and the
bigger heaps get sized. With a small heap of 1 or 2 G paging was rarely 
an issue. With a
heap of 10 or 20 G paging is more often observed than one might think.

Thanks and Regards

Thomas



-- 
Oracle <http://www.oracle.com>
THOMAS VIESSMANN | Senior Principal Technical Support Engineer - Java
Phone: +498914302496 <tel:+49814302496> | Mobile: +491743005467 
<tel:+491743005467>
Oracle Customer Technical Support - Java

ORACLE Deutschland B.V. & Co. KG | Riesstr.25 | D-80992 Muenchen

ORACLE Deutschland B.V. & Co. KG
Hauptverwaltung: Riesstr. 25, D-80992 Muenchen
Registergericht: Amtsgericht Muenchen, HRA 95603
Geschäftsführere: Juergen Kunz

Komplementärin: ORACLE Deutschland Verwaltung B.V.
Hertogswetering 163/167, 3543 AS Utrecht, Niederlande
Handelsregister der Handelskammer Midden-Niederlande, Nr. 30143697
Geschäftsführer: Alexander van der Ven, Astrid Kepper, Val Maher

------------------------------------------------------------------------
------------------------------------------------------------------------
Green Oracle <http://www.oracle.com/commitment> Oracle is committed to 
developing practices and products that help protect the environment
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/attachments/20140526/363df188/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: oracle_sig_logo.gif
Type: image/gif
Size: 658 bytes
Desc: not available
URL: <http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/attachments/20140526/363df188/oracle_sig_logo.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: green-for-email-sig_0.gif
Type: image/gif
Size: 356 bytes
Desc: not available
URL: <http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/attachments/20140526/363df188/green-for-email-sig_0.gif>


More information about the hotspot-gc-dev mailing list