4 Commits

Author SHA1 Message Date
Yumin Qi
a90e842e0c 8033792: AltHashing used jint for imprecise bit shifting
AltHashing used jint the way of juint in bit shifting which could lead loss of precision. Fix  by change _seed defined as juint.

Reviewed-by: coleenp, ccheung
2014-02-10 21:29:14 -08:00
Yumin Qi
98151c30c8 8012902: remove use of global operator new - take 2
The fix of 8010992, disable use of global operator new and new[] which caused failure on some tests. This takes two of the bugs also add ALLOW_OPERATOR_NEW_USAGE to prevent crash for third party code calling operator new of jvm on certain platforms.

Reviewed-by: coleenp, dholmes, zgu
2013-05-14 09:41:12 -07:00
Jon Masamitsu
5c58d27aac 6964458: Reimplement class meta-data storage to use native memory
Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
2012-09-01 13:25:18 -04:00
Coleen Phillimore
55b09e7016 7158800: Improve storage of symbol tables
Use an alternate version of hashing algorithm for symbol string tables and after a certain bucket size to improve performance

Reviewed-by: pbk, kamg, dlong, kvn, fparain
2012-06-13 19:52:59 -04:00