Messages in this thread | | | Date | Thu, 13 Jul 2000 13:45:35 +0200 | From | Norbert Federa <> | Subject | How to increase the page cache size |
| |
i would like to increase the page cache size for some cramfs-compression-performance tests (i386)
does anyone know the right way to do that??
PAGE_SIZE is defined in asm/page.h as (1UL << PAGE_SHIFT) PAGE_SHIFT for i386 is 12, so PAGE_SIZE is 4096 in linux/pagemap.h PAGE_CACHE_SIZE is defined as PAGE_SHIFT.
so that is what i've tried in order to get a page cache size of 8192 in linux/pagemap.h:
original version: #define PAGE_CACHE_SHIFT PAGE_SHIFT #define PAGE_CACHE_SIZE PAGE_SIZE #define PAGE_CACHE_MASK PAGE_MASK ...
my try: #define PAGE_CACHE_SHIFT 13 #define PAGE_CACHE_SIZE (1UL << PAGE_CACHE_SHIFT) #define PAGE_CACHE_MASK (~(PAGE_CACHE_SIZE-1))
the kernel is booting fine, but fails to mount root. any hints ???
thx a lot, Nob,
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |