RE: Page Size on Solaris (Informix 7.31)

Solaris onlys has an 8K page size on certain architectures, the rest are 4K. Basically the sun4u's are 8 and the sun4m are 4K. The page size wrt to the OS is determined via the hardware abstraction layer which is typically one of the few machine code areas of the kernel and unique to each hardware platform. The OS designers need to trade performance and memory efficiency. Dec used have a 256K real page size, but used klustering to achieve an effective 2K page. The larger the page size the lower the memory management overhead, remember the latest Enterprise boxes have no effective upper memory limit, but a smaller page size wastes less memory as the page are more full. -----Original Message----- From: Klaus Gundermann [mailto:Klaus.Gundermann@t-online.de] Sent: Wednesday, May 03, 2000 9:10 PM To: informix-list@iiug.org Subject: Page Size on Solaris (Informix 7.31) Hello, the docs say: "The page size depends on the OS-Platform" but why uses IDS 7.31 a 2 KB page size on Solaris 2.6 with 8 KB pages? Any idea? Thanks Klaus-Dieter Gundermann