I have Debian Etch AMD64 installed on a Dell PowerEdge 1950, connected to a MD1000 (SAS/SATA array) via a PERC5/e SAS controller. The array is RAID5. The whole drive is LVM, 9TB are one big XFS partition.
Linear reads/writes are very fast, directory listings are also fast. However, if the disk is under any kind of load (say someone downloading a file at 20MB/s) long directory listings (ls -l) get extremely slow. Listing a directory of 1000 files can take 5 minutes. Normal directory listings remain reasonable. If I strace ls -l, I notice its stopping at each getxattr() call for a split second, seems that's where it is wasting all of its time. Upon a recommendation at #xfs, I tried using attr2 via the mount option. xfs_db -c version shows: versionnum [0xb094+0x8] = V4,ATTR,ALIGN,DIRV2,EXTFLG,MOREBITS,ATTR2 The whole install is pretty vanilla. Any thoughts on why this system can't handle this type of load? Please cc me as I am not subscribed to this list. Thanks -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
