Date: Fri, 26 Apr 2013 09:19:50 -0700 From: Marc G. Fournier <scrappy@hub.org> To: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Initial NFS Test: Linux vs FreeBSD (769% slower) Message-ID: <7F65FF30-7BE5-4D64-9450-84C8E7FB20AD@hub.org>
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Okay, I just bit the bullet and installed a Linux/Centos 6.4 system for testing purposes. All hardware is *identical*, except that the FreeBSD server has the nicer Intel card in it … the Linux is just using the onboard Broadcom. Everything else is the same … same CPUs, same amount of memory, same switch, same netapp … the netapp only has one filer head, so its the same head. I created two separate volumes, but both are on the same aggregate and the same size. OSs: FreeBSD 9.1-STABLE #2: Thu Apr 25 18:18:18 UTC 2013 - custom kernel, I try to compile everything I need in, what I missed: vs Linux server03.openstudent.ca 2.6.32-358.6.1.el6.x86_64 #1 SMP Tue Apr 23 19:29:00 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux - CentOS 6.4 + 'yum update' Everything is on the local drive *except* that I put /usr/local/jboss on the NFS drive, and there is no virtualization happening anywhere … everything is on the base server OS, and nothing else is running on either of the machines. FreeBSD start time for jBoss .. 270731ms (768% *slower*) Linux start time for jBoss ….…. 35218 ms Even hitting ctl-c after the test to stop the process is 2x faster: FreeBSD: 4207ms (169% slower) Linux: 2486ms Note that both systems have an equal lack of tuning … I wouldn't even know *where* to start tuning Linux … Here is nfsstat -m for the two systems … both using nfsv3, same rsize/wsize values, all default out of the box ... FreeBSD: 192.168.1.1:/vol/freebsd_jboss on /usr/local/jboss-as-7.1.1.Final nfsv3,tcp,resvport,hard,cto,lockd,sec=sys,acdirmin=3,acdirmax=60,acregmin=5,acregmax=60,nametimeo=60,negnametimeo=60,rsize=65536,wsize=65536,readdirsize=32768,readahead=1,wcommitsize=5175966,timeout=120,retrans=2 Linux: /usr/local/jboss-as-7.1.1.Final from 192.168.1.1:/vol/linux_jboss Flags: rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.1,mountvers=3,mountport=4046,mountproto=udp,local_lock=none,addr=192.168.1.1 Note, I have time on my side here … we are doing a limit pilot over the next month, but it isn't until Sep/Oct that this project goes live … what can we do to narrow down that gap? Thx
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