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This page displays the results of a disk benchmark utility used
to test disk I/O with an EVA8000 using an 8GB LUN and a RAM disk.
The test was performed using an Itanium2 rx4640 configured with
16GB of memory, loaded with HP-UX 11.23 64bit and RamDisc Plus.
RamDisc Plus   vs    EVA8000
Disk specifications : EVA8000
                    : 2GB cache per controller

DSK     LVM device  : /dev/vg03/rlvol1
RAM     LVM device  : /dev/vr09/rlram1
   
#Benchmark version  : 1.6.2
#Benchmark started  : Tue Jun 27 12:00:47 2006
#Description        : diskbench
#
#System             : rx4640g (ia64)
#OS version         : HP-UX B.11.23 U
#
#Physical memory    : 16384 MB (16GB)
#Page size          : 4096 bytes

#Device             : rlvol1   (DSK)
#Interface          : Hard disk LVM logical volume
#Section capacity   : 8192 MB
#Disk capacity      : 8192 MB
#Sector size        : 1024 bytes

#Device             : rlram1   (RAM)
#Interface          : RamDisc   LVM logical volume
#Section capacity   : 8192 MB
#Disk capacity      : 8192 MB
#Sector size        : 1024 bytes

#Number of devices  : 1
#Files per device   : 1
#Load per file      : 1 processes
#Percentage         : 100% of the stated Rd/Wr
#File size          : 8388608 KB
#Start position     : 0 KB
#End position       : 8388608 KB
#
#Number of samples  : 10
#Sample period      : 30 seconds
#
Rd/Wr	 Xfer   Rate       +/-       Min        Max     CPU   +/-    RespT    +/-
100% 	  KB    IO/s 	  IO/s      IO/s       IO/s    util%   %      msec   msec
---------------------------------------------------------------------------------
read DSK  2    306.992    2.354    301.665    314.054  0.207  0.195  3.258  0.025
read RAM  2  87775.622  326.164  86496.295  88341.571  0.053  0.038  0.011  0.000
---------------------------------------------------------------------------------
 
#Percentage         : 100% of the stated Rd/Wr
#File size          : 8388608 KB
#Start position     : 0 KB
#End position       : 8388608 KB
#
#Number of samples  : 15
#Sample period      : 30 seconds

Rd/Wr	 Xfer  Rate       +/-        Min        Max     CPU   +/-    RespT    +/-
100% 	  KB   IO/s 	 IO/s       IO/s       IO/s    util%   %      msec   msec
---------------------------------------------------------------------------------
write DSK 2  4392.180    30.163   4326.195   4524.650  2.352  2.045  0.228  0.002
write RAM 2 81257.538   147.644  80683.205  81856.711  0.060  0.036  0.012  0.000
---------------------------------------------------------------------------------

#Percentage         : 60% of the stated Rd/Wr
#File size          : 8388608 KB
#Start position     : 0 KB
#End position       : 8388608 KB
#
#Number of samples  : 10
#Sample period      : 30 seconds

Rd/Wr	 Xfer   Rate      +/-        Min        Max     CPU   +/-    RespT    +/-
100% 	  KB    IO/s 	 IO/s       IO/s       IO/s    util%   %      msec   msec
---------------------------------------------------------------------------------
read DSK  2    493.308    2.229    486.012    497.346  0.209  0.264  2.027  0.009
read RAM  2  80809.662  166.300  80387.171  81209.187  0.080  0.036  0.012  0.000
---------------------------------------------------------------------------------
 

#File size         : 140960 KB
#Load per file     : 1 processes
#Number of samples : 20
#Start location    : 0 KB
#Interleave amount : 0 KB

Rd/Wr    Xfer    Rate     +/-        Min       Max      CPU     +/-  RespT    +/-
          KB     MB/s    MB/s       MB/s       MB/s    util%     %    msec   msec
---------------------------------------------------------------------------------
read DSK  256  105.952   6.501      76.068   116.009   0.274  0.239  2.416  0.178
read RAM  256 2731.010   9.179    2655.269  2766.400   0.917  0.175  0.092  0.000
---------------------------------------------------------------------------------
 

#File size         : 140960 KB
#Load per file     : 1 processes
#Number of samples : 20
#Start location    : 0 KB
#Interleave amount : 0 KB

Rd/Wr    Xfer    Rate     +/-        Min       Max      CPU     +/-  RespT    +/-
          KB     MB/s    MB/s       MB/s       MB/s    util%     %    msec   msec
---------------------------------------------------------------------------------
write DSK 256   84.608   0.122     84.064     85.350   0.358  0.243  2.955  0.004
write RAM 256 1145.711  30.926   1042.125   1334.905   0.436  0.162  0.219  0.006
---------------------------------------------------------------------------------

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