Hi, >> Could you slightly elaborate on that or give me a link or two which >> explain the matter? > > The kernel segment is limited to 960MB of RAM on ia32 bit machines > unless you build with special config options that allow for up to > 3GB of kernel memory. The trade off is that you've only got 4GB of > RAM in teh process address space, so by default you have 3GB of RAM > for each process (i.e. 960MB/3GB kernel/user split). If you change > that to a 3GB/1GB split, you'll have problems with applications > that are memory hogs running out of memory. Interesting! > As to the memory used by the inode cache, inodes tend to use between > 1-1.5k of RAM each. Hence for a 960MB kernel segment, you *might* be > able to cache 500,000 inodes if you don't cache anything else. > Typically it will be 25-30% of that number (200-300MB of RAM in > caching inodes during filesystem traversal). Seeing as you have > millions of inodes, that's way more than you can cache in available > kernel memory... Great! That answered all my questions! Thanks a lot! 3.6.0-rc6-x64 ist currently running fine on 6 machines. -volker _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
