NFS Performance measurement of Linux 2.2
 
							16 Apr 1999
							T. Ichihara (RIKEN)
 
Preliminary
NFS Performance test [Draft]  

(Linux client - Linux Server  vs Linux Client - Solaris2.6)

Purpose 
  Compare the performace of NFS server (SUN Solaris v.s. i386 Linux) 
for Linux NFS client, because we felt that the NFS-write profrmace 
for Solaris 2.6 NFS server from Linux NFS cliet is very slow to our 
experience so far.

-----------------------------------------------------------------------
 NFS Client: Dual Pentium II 450MHz  (256 MB Memory)
             Linux 2.2.4 (ap02.ccj)  100BaseTXi (Half Duplex) 

 Test method: Fortran unformated read & Write for 10MB-size variables
---------------------------------------------------------------------- 

NFS Server 1:  Solaris2.6 (Dual Ultra2 Sparc 400MHz) 1280 MB Memory
               18GB Bare Disk (Seagate UW SCSI)
               (Netperf: TCP STREAM 66.5 Mbps)

   10MB  NFS write   15.94 s   0.62 MB/s      <- !! slow
  100MB  NFS write  206.94 s   0.48 MB/s      <- !! slow
  200MB  NFS write  377.88 s   0.53 MB/s      <- !! slow
  400MB  NFS write  643.04 s   0.62 MB/s      <- !! slow
 1000MB  NFS write 1971.22 s   0.51 MB/s      <- !! slow

  100MB  NFS read    15.52 s   6.5 MB/s
  200MB  NFS read    41.00 s   4.9 MB/s
  400MB  NFS read    82.34 s   4.9 MB/s
 1000MB  NFS read   199.95 s   5.0 MB/s

NFS Server 2:  Linux2.2.4  Dual PII 450 MHz 256 MB Memory 
               18GB Bare Disk (Seagate UW SCSI)
              (Netperf: TCP STREAM 66.8 Mbps)

   10MB  NFS write    1.37 s   7.3 MB/s  
  100MB  NFS write   13.68 s   7.3 MB/s  
  400MB  NFS write   78.60 s   5.1 MB/s
 1000MB  NFS write  229.69 s   4.3 MB/s
 2000MB  NFS write  460.17 s   4.3 MB/s

  100MB  NFS read   25.28 s    4.0 MB/s
  400MB  NFS read   94.94 s    4.2 MB/s
 1000MB  NFS read  229.26 s    4.4 MB/s
 2000MB  NFS read  533.24 s    3.8 MB/s


 Result Summary

   For the Linux NFS client (Linux 2.2.4), the NFS-write peformance of the  
Linux NFS server is about 10 times larger than that of SUN Solaris 2.6 NFS 
server in this measurement.