From owner-freebsd-fs@FreeBSD.ORG Sat Feb 7 17:00:17 2009 Return-Path: Delivered-To: freebsd-fs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3FEA2106564A for ; Sat, 7 Feb 2009 17:00:17 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 2E2998FC0A for ; Sat, 7 Feb 2009 17:00:17 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n17H0Hce021580 for ; Sat, 7 Feb 2009 17:00:17 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n17H0HJT021579; Sat, 7 Feb 2009 17:00:17 GMT (envelope-from gnats) Date: Sat, 7 Feb 2009 17:00:17 GMT Message-Id: <200902071700.n17H0HJT021579@freefall.freebsd.org> To: freebsd-fs@FreeBSD.org From: Martin Birgmeier Cc: Subject: Re: kern/131360: [nfs] poor scaling behavior of the NFS server under load X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Martin Birgmeier List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Feb 2009 17:00:17 -0000 The following reply was made to PR kern/131360; it has been noted by GNATS. From: Martin Birgmeier To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/131360: [nfs] poor scaling behavior of the NFS server under load Date: Sat, 7 Feb 2009 17:59:05 +0100 (CET) o.k. more info... I have this on the server (machine A in my previous post); it is showing quite a high number for "Server Ret-Failed": # nfsstat Client Info: Rpc Counts: Getattr Setattr Lookup Readlink Read Write Create Remove 2304000 0 221 165 0 0 0 0 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 0 0 0 22 0 0 Mknod Fsstat Fsinfo PathConf Commit 0 58 0 0 0 Rpc Info: TimedOut Invalid X Replies Retries Requests 0 0 17 17 2304466 Cache Info: Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses 0 2304000 885499 221 0 0 0 0 BioRLHits Misses BioD Hits Misses DirE Hits Misses 532202 165 89 11 50 0 Server Info: Getattr Setattr Lookup Readlink Read Write Create Remove 8 19 3123468 82 34382 3156 19 11 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 11 0 0 9522 0 868616 Mknod Fsstat Fsinfo PathConf Commit 0 31396 23 0 147 Server Ret-Failed 3046139 Server Faults 0 Server Cache Stats: Inprog Idem Non-idem Misses 0 51 0 412 Server Write Gathering: WriteOps WriteRPC Opsaved 3156 3156 0 and this on the client (machine B): # nfsstat Client Info: Rpc Counts: Getattr Setattr Lookup Readlink Read Write Create Remove 48679649 0 3035823 58 26400 0 0 0 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 0 0 0 7255 0 767940 Mknod Fsstat Fsinfo PathConf Commit 0 27347 1 0 0 Rpc Info: TimedOut Invalid X Replies Retries Requests 0 0 0 1 52543821 Cache Info: Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses 46870061 49414909 64135869 3035823 1144711 26389 0 0 BioRLHits Misses BioD Hits Misses DirE Hits Misses 8748412 58 43987 7218 25358 0 Server Info: Getattr Setattr Lookup Readlink Read Write Create Remove 0 0 0 0 0 0 0 0 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 0 0 0 0 0 0 Mknod Fsstat Fsinfo PathConf Commit 0 0 0 0 0 Server Ret-Failed 0 Server Faults 0 Server Cache Stats: Inprog Idem Non-idem Misses 0 0 0 0 Server Write Gathering: WriteOps WriteRPC Opsaved 0 0 0