: : Teemu Järvinen wrote: : : > At first I noticed that NFS performance is low when tried to access this : : > server, and any serious reading attempt leads nfsd consuming all the : : > available cpu time. Later it became obvious that the local filesystem : : > is to blame, it behaves like there is no DMA.
The problem solved, faulty hd eventually revealed itself by generating enough i/o-errors. : [ 1.756838] ata2.00: ATA-8: WDC WD5000AACS-00G8B1, 05.04C05, max UDMA/133 After replacing this disc, the speed issues are history. The cpu burning is related to NFSv4, after reconfigured to use NFSv3 my file server is working smoothly. -- Teemu -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120502125300.ga5...@tambu.hopto.org