On Tue, Jun 19, 2012 at 09:45:28AM +0900, Ryan Lee wrote: > Hi, My name is Ryan. > > Nowadays, Our company product has a new problem which is taking too much > time to delete file on xfs filesystem. > > When I try to delete the file (18GByte, It was just one file), it would > take around 7 minutes 30 seconds. It's fragmented, isn't it? Run 'xfs_bmap -vp <file>' and count the extents. If that fails because of ENOMEM errors, run 'xfs_io -f -c stat <file>' to see what the count of extents is. if the result is in the thousands, then that is the reason for it being slow. > # time rm hdd_write_test6.ts Hmmm - a loopback filesystem image that was written to randomly? Perhaps you should preallocate the file before running the write test.... > kernel 2.6.37 A current kernel (e.g. 3.4) will be significantly faster at removing fragmented files than 2.6.37. Consider upgrading. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
