Date: Thu, 16 Sep 1999 22:57:58 -0700 (PDT) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/nfs nfs.h nfs_bio.c nfs_serv.c nfs_vnops.c Message-ID: <199909170557.WAA54733@freefall.freebsd.org>
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dillon 1999/09/16 22:57:57 PDT
Modified files:
sys/nfs nfs.h nfs_bio.c nfs_serv.c nfs_vnops.c
Log:
Asynchronized client-side nfs_commit. NFS commit operations were
previously issued synchronously even if async daemons (nfsiod's) were
available. The commit has been moved from the strategy code to the doio
code in order to asynchronize it.
Removed use of lastr in preparation for removal of vnode->v_lastr. It
has been replaced with seqcount, which is already supported by the system
and, in fact, gives us a better heuristic for sequential detection then
lastr ever did.
Made major performance improvements to the server side commit. The
server previously fsync'd the entire file for each commit rpc. The
server now bawrite()s only those buffers related to the offset/size
specified in the commit rpc.
Note that we do not commit the meta-data yet. This works still needs
to be done.
Note that a further optimization can be done (and has not yet been done)
on the client: we can merge multiple potential commit rpc's into a
single rpc with a greater file offset/size range and greatly reduce
rpc traffic.
Reviewed by: Alan Cox <alc@cs.rice.edu>, David Greenman <dg@root.com>
Revision Changes Path
1.49 +3 -1 src/sys/nfs/nfs.h
1.78 +34 -4 src/sys/nfs/nfs_bio.c
1.85 +73 -4 src/sys/nfs/nfs_serv.c
1.141 +15 -12 src/sys/nfs/nfs_vnops.c
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