On Fri, Jul 19, 2013 at 05:03:45PM -0400, bjschuma@xxxxxxxxxx wrote: > From: Bryan Schumaker <bjschuma@xxxxxxxxxx> > > These patches build on Zach Brown's copyfile patches to add server side > copy to both the NFS client and the NFS server. > > The first patch improves on the copyfile syscall to make it usable on my > machine and also includes notes on other potential problems that I've > found. The remaining patches first implement a sync copy, then expand to > async. > > My testing was done on a server exporting an ext4 filesystem exporting an > ext4 filesystem. I compared copying using the cp command to copying with > the copyfile system call. Were these tests using the full series of patches? (So, using the asynchronous mechanism?) --b. > > > File size: 512 MB > cp: 4.244 seconds > copyfile: 0.961 seconds > > File size: 1024 MB > cp: 9.091 seconds > copyfile: 1.919 seconds > > File size: 1536 MB > cp: 15.291 seconds > copyfile: 6.016 seconds > > > Repeating these tests on a btrfs exported filesystem supporting the copyfile > system call drops the time for copyfile to about 0.01 seconds. > > Feel free to send me any questions, comments or other thoughts! > > - Bryan > > Bryan Schumaker (5): > Improve on the copyfile systemcall > NFSD: Implement the COPY call > NFS: Add COPY nfs operation > NFSD: Defer copying > NFS: Change copy to support async servers > > fs/copy_range.c | 10 +++- > fs/nfs/callback.h | 13 ++++ > fs/nfs/callback_proc.c | 9 +++ > fs/nfs/callback_xdr.c | 54 ++++++++++++++++- > fs/nfs/inode.c | 2 + > fs/nfs/nfs4_fs.h | 7 +++ > fs/nfs/nfs4file.c | 101 +++++++++++++++++++++++++++++++ > fs/nfs/nfs4proc.c | 16 +++++ > fs/nfs/nfs4xdr.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++ > fs/nfsd/nfs4callback.c | 136 ++++++++++++++++++++++++++++++++++++++++++ > fs/nfsd/nfs4proc.c | 104 ++++++++++++++++++++++++++++++-- > fs/nfsd/nfs4state.c | 15 ++++- > fs/nfsd/nfs4xdr.c | 121 +++++++++++++++++++++++++++++++++++++- > fs/nfsd/state.h | 23 +++++++- > fs/nfsd/vfs.c | 9 +++ > fs/nfsd/vfs.h | 1 + > fs/nfsd/xdr4.h | 24 ++++++++ > fs/nfsd/xdr4cb.h | 9 +++ > include/linux/nfs4.h | 14 ++++- > include/linux/nfs_xdr.h | 33 +++++++++++ > include/linux/syscalls.h | 1 + > 21 files changed, 836 insertions(+), 16 deletions(-) > > -- > 1.8.3.3 > > -- > 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 -- 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
