Update README.

README

@@ -24,15 +24,9 @@ accompanying LICENSE file.
 
 BENCHMARKS
 
-The speed of go-fuse is close to libfuse's speed (measurements on my
-lenovo T60 laptop):
-
-* 'find' in tree with 14k files. fs access: 0.06s, go-fuse: 3.5s, bbfs: 3.9
-* 'ls -lR' in same tree:  fs access: 0.5s, go-fuse: 9.5s, bbfs: 8.8s
-* copying a 100 mb file: fs access: 200mb/s, go-fuse: 182mb/s, bbfs: 190mb/s
-
-bbfs is a loopback filesystem written in C, see
-http://www.cs.nmsu.edu/~pfeiffer/fuse-tutorial.tgz
+In benchmarks, Go-fuse's loopback system is about 10 times slower than
+equivalent C++ based FUSE filesystem.  In practical applications, the
+the file system client processing may mask some of these performance gaps.
 
 
 
@@ -54,7 +48,7 @@ Grep source code for TODO.  Major topics:
 
 * Missing support for file locking: FUSE_GETLK, FUSE_SETLK, FUSE_SETLKW
 
-* Missing support for extended attributes FUSE_SETXATTR, FUSE_GETXATTR, FUSE_LISTXATTR
+* Missing support for extended attributes FUSE_SETXATTR, FUSE_LISTXATTR
 
 * Missing support for FUSE_INTERRUPT, FUSE_NOTIFY, CUSE, BMAP, POLL, IOCTL