On 2010-09-30 04:57, DongJin Lee wrote: > Hi all. > > System: ubuntu 10.04 x32 and x64 > > I'm trying to use xtreemfs (distributed file system), which I got it > successfully mounted (it uses fusermount, current version I have is > 2.8.1), > so I can write, read, (including gnome drap drog, etc) and do some > file benchmarks using dbench (testing windows file server) to that > mounted directory, without any problems. > Also, I've used iozone benchmark without a problem, so it appears that > the filesystem works fine. > > However, when I tried to run fio (including the latest version > 1.44-rc1), I keep getting an 'Invalid argument error', I have no idea > because this does not happen on other file systems, (e.g., nfs, etc) > I think the error occurs somewhere getting the file information.. > > randread: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 > Starting 1 process > fio: pid=12627, err=22/file:filesetup.c:493, > func=open(/media/xtreemfs/afile), error=Invalid argument Try making that direct=0 instead, probably the fs does not support O_DIRECT. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html