Andreas Dilger Wrote: > On Jun 05, 2008 07:55 -0700, Mingming Cao wrote: >>> /** >>> - * ext4_new_blocks_old() -- core block(s) allocation function >>> + * ext4_orlov_new_blocks() -- core block(s) allocation function >> what is orlov means? this is core function for non extent based without >> mballoc block allocation, right? > > Orlov is the name of the INODE allocator, not the block allocator. I'm > not sure there is a name for the block allocator except "old" or "bitmap". > In the future I suspect we won't want to keep this version at all, using > the mballoc allocator even for block-mapped files, but it is useful for > now for performance comparisons. > Is that true? I got the following from the kernel ext4 documentation. orlov (*) This enables the new Orlov block allocator. It is enabled by default. oldalloc This disables the Orlov block allocator and enables the old block allocator. Orlov should have better performance - we'd like to get some feedback if it's the contrary for you. -Shen Feng -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
