We talk about this in the user's guide. 1. Always use 4K blocksize. 2. Never set the cluster size less than the database block size.
Having a smaller cluster size could mean that a db block may not be contiguous. And you don't want that for performance and other reasons. Having a still larger cluster size is an easy way to ensure the files are contiguous. Contiguity can only help perf. On 11/14/2011 03:35 PM, Pravin K Patil wrote: > Hi All, > Is there a benchmark study done different block sizes of ocfs2 and > corrosponding db_block_size and its impact on read / write? > Similar way s there any study done for cluster size of ocfs2 and > corrosponding db_block_size and its impact on read / write? > For example if the db_block_size is 8K and if we have ocfs2 cluster size as > 4K will it have any performance impact or in other words, if we make cluster > size of file systems on which data files are located as 8K will it improve > performance? if so is it for read or write? > Looking for actual expereince on the settings of ocfs2 block size, cluster > size and db_block_size corelation. > > Regards, > Pravin > _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
