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From: Bruce Fields <bfields@fieldses.org>
To: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: linux-nfs@vger.kernel.org
Subject: Re: [PATCH 00/11] SUNRPC server scalability improvements
Date: Mon, 4 Aug 2014 09:36:41 -0400	[thread overview]
Message-ID: <20140804133641.GA23341@fieldses.org> (raw)
In-Reply-To: <1407085393-3175-1-git-send-email-trond.myklebust@primarydata.com>

On Sun, Aug 03, 2014 at 01:03:02PM -0400, Trond Myklebust wrote:
> When testing knfsd on 10GigE and 40GigE networks, we've been hitting a few
> scalability issues that are seriously affecting performance. The main issue
> was scalability of the pool->sp_lock, but we also hit a couple of things
> like the use of ioctls in the receive fast path, as well as some issues
> with heuristic tests being performed twice in the same path.
> 
> This is not urgent, and can definitely be delayed until the 3.18 merge
> window, however since the performance gains were significant over NFSv3,
> I thought I'd share now.

Thanks!  On a quick skim these and the DRC patches look good.

My first priority is to see if I can merge the last of the state locking
patches which are already in nfsd-next, so yes I'll probably queue these
up for 3.18 later.

--b.

  parent reply	other threads:[~2014-08-04 13:36 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-03 17:03 [PATCH 00/11] SUNRPC server scalability improvements Trond Myklebust
2014-08-03 17:03 ` [PATCH 01/11] SUNRPC: Reduce contention in svc_xprt_enqueue() Trond Myklebust
2014-08-03 17:03   ` [PATCH 02/11] SUNRPC: svc_tcp_write_space: don't clear SOCK_NOSPACE prematurely Trond Myklebust
2014-08-03 17:03     ` [PATCH 03/11] SUNRPC: Allow svc_reserve() to notify TCP socket that space has been freed Trond Myklebust
2014-08-03 17:03       ` [PATCH 04/11] SUNRPC: Do not override wspace tests in svc_handle_xprt Trond Myklebust
2014-08-03 17:03         ` [PATCH 05/11] lockd: Ensure that lockd_start_svc sets the server rq_task Trond Myklebust
2014-08-03 17:03           ` [PATCH 06/11] nfs: Ensure that nfs_callback_start_svc " Trond Myklebust
2014-08-03 17:03             ` [PATCH 07/11] SUNRPC: Do not grab pool->sp_lock unnecessarily in svc_get_next_xprt Trond Myklebust
2014-08-03 17:03               ` [PATCH 08/11] SUNRPC: get rid of the request wait queue Trond Myklebust
2014-08-03 17:03                 ` [PATCH 09/11] SUNRPC: Fix broken kthread_should_stop test in svc_get_next_xprt Trond Myklebust
2014-08-03 17:03                   ` [PATCH 10/11] SUNRPC: More optimisations of svc_xprt_enqueue() Trond Myklebust
2014-08-03 17:03                     ` [PATCH 11/11] SUNRPC: Optimise away svc_recv_available Trond Myklebust
2014-08-12 19:53                 ` [PATCH 08/11] SUNRPC: get rid of the request wait queue Bruce Fields
2014-08-12 20:09                   ` Trond Myklebust
2014-08-12 20:23                     ` Bruce Fields
2014-08-12 20:54                       ` Trond Myklebust
2014-08-12 21:29                         ` Bruce Fields
2014-08-12 21:34                           ` Trond Myklebust
2014-08-12 19:16         ` [PATCH 04/11] SUNRPC: Do not override wspace tests in svc_handle_xprt Bruce Fields
2014-08-12 19:31           ` Trond Myklebust
2014-08-12 20:04             ` Bruce Fields
2014-08-04 13:36 ` Bruce Fields [this message]
2014-08-05 20:42   ` [PATCH 00/11] SUNRPC server scalability improvements Bruce Fields
2014-08-05 21:24     ` Trond Myklebust

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