[fuse-devel] does FUSE support concurrent write ?

[Xiangyong (S. O. <ou...@cs...>]

Hi all,

I let 8 processes perform concurrent pwrite() to an example FUSE-based
filesystem (http://www.cs.nmsu.edu/~pfeiffer/fuse-tutorial/).  In
fuse_write() , I do a getpid() to show the current process id
that conducts the write.  I always see the SAME pid, regardless of how
many user processes are writing concurrently.

I'm under the impression that fuse library internally has multiple
worker-threads that fetch requests from /dev/fuse.  Therefore I'm
expecting to see different pids in fuse_write().  Am I missing some
flags to enable fuse internal multi-threads? I didn't pass any special
command line arguments to fuse except for "-f".

btw,  I'm running 8-core RHEL machine,  fuse 2.8.1,  kernel 2.6.30.10.  Thanks!


--Shangyong