Hi I have a new question about lustre. In the func ll_start_readahead( llite/rw.c), the variable end_index is assigned to first_index+(inode->iblksize>>(PAGE_CACHE_SHIFT-3)). Why use this value? What is the difference in readahead strategy between lustre and standard linux? SongT.L _________________________________________________________________ ÓëÁª»úµÄÅóÓѽøÐн»Á÷£¬ÇëʹÓà MSN Messenger: http://messenger.msn.com/cn