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October 28, 2019 05:22
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рекомендации по настройке Oracle: | |
1. под SGA (System Global Area) Oracle можно отдать 50% оперативной памяти (RAM) с учетом что на машине работает одна БД. | |
рекомендуемые параметры для RAM=4G: | |
SHARED_POOL_SIZE=512M | |
DB_CACHE_SIZE=2G | |
LARGE_POOL_SIZE=16M | |
JAVA_POOL_SIZE=160M | |
PGA_AGGREGATE_TARGET=128M | |
рекомендуемые параметры для RAM=8G: | |
SHARED_POOL_SIZE=1G | |
DB_CACHE_SIZE=2500M | |
LARGE_POOL_SIZE=16M | |
JAVA_POOL_SIZE=256M | |
PGA_AGGREGATE_TARGET=512M | |
рекомендуемые параметры для RAM=16G: | |
SHARED_POOL_SIZE=1500M | |
DB_CACHE_SIZE=6G | |
LARGE_POOL_SIZE=16M | |
JAVA_POOL_SIZE=256M | |
PGA_AGGREGATE_TARGET=700M | |
2. проверить параметры SORT_AREA_SIZE и DB_MULTIREAD_BLOCK_COUNT: | |
SORT_AREA_SIZE=512K | |
DB_MULTIREAD_BLOCK_COUNT=16 | |
смотрим сформированный файл parameters.htm или непосредственно на сервере: | |
$sqlplus /as sysdba | |
SQL> show parameters shared_pool_size; и т.д. | |
изменение параметра: | |
SQL> alter system set shared_pool_size= scope=both; |
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