Java si memoria

Am probleme cu memory usage la java pe Linux (crapa prea mult)Am pornit tomcat5 + raptor + eclipse si frineaza atit de tare, incit este foarte greu de lucrat.Am JRE 1.4.2_10 si JDK 1.5 (pentru raptor). Am 512Mb RAM. Ce pot sa fac?! Mai jos detalii:# swapon -sFilename Type Size Used Priority/u/pagefile.sys file 1048568 440312 -1# cat /proc/meminfo MemTotal: 515432 kBMemFree: 6424 kBBuffers: 15424 kBCached: 139612 kBSwapCached: 141372 kBActive: 418952 kBInactive: 48216 kBHighTotal: 0 kBHighFree: 0 kBLowTotal: 515432 kBLowFree: 6424 kBSwapTotal: 1048568 kBSwapFree: 608256 kBDirty: 668 kBWriteback: 0 kBMapped: 381272 kBSlab: 29992 kBCommitLimit: 1306284 kBCommitted_AS: 950232 kBPageTables: 3928 kBVmallocTotal: 507896 kBVmallocUsed: 12804 kBVmallocChunk: 493980 kBHugePages_Total: 0HugePages_Free: 0Hugepagesize: 4096 kB# topPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP TIME DATA COMMAND ...15314 tomcat 23 0 242m 64m 31m S 0.0 12.9 0:10.88 177m 0:10 188m java 9709 dorin 15 0 513m 57m 15m S 0.0 11.5 2:35.22 455m 2:35 392m java 11630 dorin 15 0 856m 20m 2636 S 0.0 4.1 0:12.88 836m 0:12 760m java ...