Date: Thu, 2 May 2013 11:46:40 -0700 From: "Marc G. Fournier" <scrappy@hub.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-fs@freebsd.org Subject: oldnfs vs nfs ( Was: Re: Initial NFS Test: Linux vs FreeBSD (769% slower) ) Message-ID: <CDE89452-01C1-4BC6-B968-656FD0B47AC7@hub.org> In-Reply-To: <971747745.58619.1367458184334.JavaMail.root@erie.cs.uoguelph.ca> References: <971747745.58619.1367458184334.JavaMail.root@erie.cs.uoguelph.ca>
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Okay, I think I can make the pitch against Linux based on concerns as to what exactly it is doing to get 'near local drive' performance on start up of jboss … it has to be short circuiting something in favour of speed … and this project (to us) is such that any reduction in risk of data loss is desirable … we have a lot of naysayers against us …
But, that said, the newnfs code does appear to be slower then the oldnfs … just over 60s slower to start up … is that to be expected?
OLDNFS:
JBoss AS 7.1.1.Final "Brontes" started in 246381ms
root@server04:/usr/local/jboss-as-7.1.1.Final # nfsstat -o -c
Client Info:
Rpc Counts:
Getattr Setattr Lookup Readlink Read Write Create Remove
237199 5 17224 0 233935 234240 3743 1
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access
0 0 0 307 0 71 0 8420
Mknod Fsstat Fsinfo PathConf Commit
0 467 0 0 0
Rpc Info:
TimedOut Invalid X Replies Retries Requests
0 0 0 0 735611
Cache Info:
Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses
712242 237197 527641 17224 -100768 233774 13164 234240
BioRLHits Misses BioD Hits Misses DirE Hits Misses Accs Hits Misses
0 0 934 71 467 0 544719 8420
NEWNFS:
JBoss AS 7.1.1.Final "Brontes" started in 305919ms
root@server04:~ # nfsstat -c
Client Info:
Rpc Counts:
Getattr Setattr Lookup Readlink Read Write Create Remove
236644 5 17306 0 230891 231140 3743 1
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access
0 0 0 307 0 71 0 8481
Mknod Fsstat Fsinfo PathConf Commit
0 531 0 0 0
Rpc Info:
TimedOut Invalid X Replies Retries Requests
0 0 0 0 729116
Cache Info:
Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses
717990 236647 530738 17306 -101086 230812 13164 231140
BioRLHits Misses BioD Hits Misses DirE Hits Misses Accs Hits Misses
0 0 1087 55 531 0 548059 8481
Both using same mount options *other then* oldnfs vs nfs …
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