"J. Bruce Fields" <bfields@xxxxxxxxxxxx> wrote on 04/18/2009 12:16:47 AM: > Re: [PATCH 0/11] nfsd: Summary of "Improve NFS server performance" > > On Wed, Mar 25, 2009 at 07:06:07PM +0530, Krishna Kumar wrote: > > From: Krishna Kumar <krkumar2@xxxxxxxxxx> > > > > Patch summary: > > -------------- > > Change the caching from ino/dev to a file handle model. Advantages: > > > > 1. Since file handles are unique, this patch removes all dependencies on the > > kernel readahead parameters and it's implementation; and instead caches> > files based on file handles. > > 2. Allows the server to not have to open/close a file multiple times when the > > client reads it, and results in faster lookup times. > > 3. Readahead is automatically taken care of since the file is not closed while > > it is getting read (quickly) by the client. > > 4. Another optimization is to avoid getting the cache lock twice for each read > > operation (after the first time it is taken to update the cache). > > 5. (ra_size, ra_depth retain the "ra" prefix for now, since I have not checked > > whether changing that will break any user programs) > > You're referring here to the "ra" line in /proc/net/rpc/nfsd? Yes - at that time I was thinking of any consumer of this file. From your comment, I see that it is not an issue now, thanks for pointing it out. Thanks, - KK -- 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
