Thank you I have checked the memory ( 12G.) and sometimes memory is only 512M (I set it in grub.conf) fscache works well I have sent /proc/fs/fscache/states to David (RedHat who write fscache) ENOBUFS is just normal infor But once fscache detect a ENOBUFS It can't alloc more buff Then no more data can be write to disk nfs_readpages_to_fscache __nfs_readpages_from_fscache may report ENOBUF After that no buff will be alloc Thank you for replaying this mail yours GongMeng On Wed, Sep 15, 2010 at 5:28 PM, Bian Naimeng <biannm@xxxxxxxxxxxxxx> wrote: >> S: >> >> I want to get benchmark from pNFS+ fscache with iozone >> >> But iozone can't work well >> /proc/fs/nfsfs/volumes show that the fsc is YES >> >> I have open cachefiled and mount a ssd (ext3/user_xattr) on /var/fscache >> >> When I use iozone to test read/re-read it can't write page to the SSD DISK >> >> /var/log/messages show that first it can write 4 pages successfully >> >> after NFS: nfs_getpages_from_fscache: no page: -105 > > Please confirm whether do you have enough memory when get this error, > i guess iozone eats lot of memory. > > And, maybe the information of /proc/fs/fscache/states is useful, please > puts it. > > -- > Regards > Bian Naimeng > > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
