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This page displays the results of a disk benchmark utility used to test disk I/O using a conventional disk drive and a RAM disk. The test was performed using an HP9000/J5000 configured with 3GB of memory and loaded with HP-UX 11.00 64bit and RamDisc Plus. |
Disk specifications : LVD 9GB 10,000 rpm
: 4.7ms average read/write
: 4mb cache
SCSI describe of /dev/rdsk/c3t5d0:
vendor: FUJITSU
product id: MAJ3091MC
type: direct access
size: 8886762 Kbytes
bytes per sector: 512
RAM LVM device : /dev/vr09/rlram1
DSK LVM device : /dev/vg02/rlvol1
#Benchmark version : 1.6.0
#Benchmark started : Wed Sep 19 13:30:34 2001
#Description : none
#
#System : iotest (9000/785)
#OS version : HP-UX B.11.00 A
#
#Physical memory : 3072 MB
#Page size : 4096 bytes
#Device : rlvol1 (DSK)
#Interface : Hard disk LVM logical volume
#Section capacity : 2000 MB
#Disk capacity : 2000 MB
#Sector size : 1024 bytes
#Device : rlram1 (RAM)
#Interface : RamDisc LVM logical volume
#Section capacity : 2000 MB
#Disk capacity : 2000 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 : 2048000 KB
#Start position : 0 KB
#End position : 2048000 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 2 162.071 0.353 161.260 163.258 0.187 0.002 6.170 0.013
read RAM 2 59784.069 1046.045 56084.078 61958.007 0.594 0.004 0.017 0.000
---------------------------------------------------------------------------------
#Percentage : 100% of the stated Rd/Wr
#File size : 2048000 KB
#Start position : 0 KB
#End position : 2048000 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 2 320.536 0.447 318.604 321.971 0.611 0.194 3.120 0.004
write RAM 2 57627.593 730.347 55505.392 59916.167 0.661 0.145 0.017 0.000
---------------------------------------------------------------------------------
#Percentage : 60% of the stated Rd/Wr
#File size : 2048000 KB
#Start position : 0 KB
#End position : 2048000 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 2 166.552 0.322 165.589 167.298 0.100 0.087 6.004 0.012
read RAM 2 57335.003 1797.565 51368.708 60488.728 0.904 0.010 0.017 0.001
---------------------------------------------------------------------------------
#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 40.650 0.018 40.527 40.681 0.262 0.041 6.150 0.003
read RAM 256 532.016 9.450 480.533 552.820 0.104 0.080 0.471 0.009
---------------------------------------------------------------------------------
#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 39.594 0.087 39.215 39.896 1.307 0.136 6.314 0.014
write RAM 256 446.151 8.743 387.571 460.244 0.704 0.523 0.562 0.012
---------------------------------------------------------------------------------
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