In XFS we can write parallel (i.,e we can make use of allocation groups for writing process). If the files are kept in individual directories, there is a possibility that first the blocks for that files be used from individual allocation groups. If I start ‘4’ writing process(cp 100MB_file /<dirnum>/) – after writing is finished – if I check the bmap – it does shows that initial allocation was from individual allocation groups. Even though in Ext4 also we do have groups – but I am not able to get behavior similar to XFS. If I check the file extents – the extents are in mixed form, the allocation pattern is also very fragmented. Please share more on this. Also, if there is a possible exact test case to check for parallel writes support. Thanks & Regards, Amit Sahrawat _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
