September 22, 2016

Hugepages and Large Pages If you run a Oracle Database on a Linux Server with more than 16 GB physical memory and your System Global Area (SGA) is greater than 8 GB, you should configure HugePages. Oracle promises more performance by doing this. A HugePages configuration means, that the linux kernel can handle „large pages“, like Oracle generally calls them. Instead of standardly 4 KB on x86 and x86_64 or 16 KB on IA64 systems – 4 MB on x86, 2 MB on x86_64 and 256 MB on IA64 system. Bigger pages means, that the system uses less page tables, […]