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Old 12th November 2008
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vermaden vermaden is offline
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Post STORAGE: benchmarks results (diskinfo)

I would like to start a thread to compare performance of various storage sollutions using FreeBSD diskinfo(8) tool.

I also encourage to post results of other benchamrking tools.

Here are mine results for the start:

Kingston DT100 16GB (pendrive):
Code:
# diskinfo -c -t /dev/da0
/dev/da0
	512         	# sectorsize
	16131293184 	# mediasize in bytes (15G)
	31506432    	# mediasize in sectors
	1961        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.617194 sec	=    0.030 msec/sector
	time to read 20480 sectors  15.450024 sec	=    0.754 msec/sector
	calculated command overhead			=    0.724 msec/sector

Seek times:
	Full stroke:	  250 iter in   0.251563 sec =    1.006 msec
	Half stroke:	  250 iter in   1.053088 sec =    4.212 msec
	Quarter stroke:	  500 iter in   0.499425 sec =    0.999 msec
	Short forward:	  400 iter in   0.300996 sec =    0.752 msec
	Short backward:	  400 iter in   0.303678 sec =    0.759 msec
	Seq outer:	 2048 iter in   1.536665 sec =    0.750 msec
	Seq inner:	 2048 iter in   1.548363 sec =    0.756 msec
Transfer rates:
	outside:       102400 kbytes in   5.749353 sec =    17811 kbytes/sec
	middle:        102400 kbytes in   3.553501 sec =    28817 kbytes/sec
	inside:        102400 kbytes in   3.547978 sec =    28862 kbytes/sec
Seagate Momentus 7200.2 8MB 80GB SATA [ST980813AS] (2.5 laptop disk):
Code:
# diskinfo -t -c /dev/ad4
/dev/ad4
	512         	# sectorsize
	80026361856 	# mediasize in bytes (75G)
	156301488   	# mediasize in sectors
	155061      	# Cylinders according to firmware.
	16          	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ad:5NH0MD7M 	# Disk ident.

I/O command overhead:
	time to read 10MB block      0.190977 sec	=    0.009 msec/sector
	time to read 20480 sectors   3.132845 sec	=    0.153 msec/sector
	calculated command overhead			=    0.144 msec/sector

Seek times:
	Full stroke:	  250 iter in   5.959489 sec =   23.838 msec
	Half stroke:	  250 iter in   4.147395 sec =   16.590 msec
	Quarter stroke:	  500 iter in   6.506640 sec =   13.013 msec
	Short forward:	  400 iter in   1.602929 sec =    4.007 msec
	Short backward:	  400 iter in   2.285750 sec =    5.714 msec
	Seq outer:	 2048 iter in   0.413902 sec =    0.202 msec
	Seq inner:	 2048 iter in   0.372223 sec =    0.182 msec
Transfer rates:
	outside:       102400 kbytes in   1.739364 sec =    58872 kbytes/sec
	middle:        102400 kbytes in   2.157085 sec =    47471 kbytes/sec
	inside:        102400 kbytes in   3.405393 sec =    30070 kbytes/sec

Seagate 7200.7 8MB 80GB PATA [ST380011A] (3.5 disk):
Code:
# diskinfo -t -c /dev/ad0
/dev/ad0
        512             # sectorsize
        80026361856     # mediasize in bytes (75G)
        156301488       # mediasize in sectors
        155061          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:5JVK88WT     # Disk ident.

I/O command overhead:
        time to read 10MB block      0.196956 sec       =    0.010 msec/sector
        time to read 20480 sectors   2.342352 sec       =    0.114 msec/sector
        calculated command overhead                     =    0.105 msec/sector

Seek times:
        Full stroke:      250 iter in   5.613326 sec =   22.453 msec
        Half stroke:      250 iter in   4.320666 sec =   17.283 msec
        Quarter stroke:   500 iter in   6.948839 sec =   13.898 msec
        Short forward:    400 iter in   2.039787 sec =    5.099 msec
        Short backward:   400 iter in   1.404436 sec =    3.511 msec
        Seq outer:       2048 iter in   0.246837 sec =    0.121 msec
        Seq inner:       2048 iter in   0.256757 sec =    0.125 msec
Transfer rates:
        outside:       102400 kbytes in   1.793044 sec =    57110 kbytes/sec
        middle:        102400 kbytes in   2.235812 sec =    45800 kbytes/sec
        inside:        102400 kbytes in   3.437295 sec =    29791 kbytes/sec
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Old 12th November 2008
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graudeejs graudeejs is offline
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ad0: 152627MB <SAMSUNG SP1604N TM100-30> at ata0-master UDMA33
Code:
killasmurf86 $ diskinfo -c -t /dev/ad0
/dev/ad0
        512             # sectorsize
        160041885696    # mediasize in bytes (149G)
        312581808       # mediasize in sectors
        310101          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:S013J10Y333525       # Disk ident.

I/O command overhead:
        time to read 10MB block      0.397548 sec       =    0.019 msec/sector
        time to read 20480 sectors   2.393213 sec       =    0.117 msec/sector
        calculated command overhead                     =    0.097 msec/sector

Seek times:
        Full stroke:      250 iter in   5.550619 sec =   22.202 msec
        Half stroke:      250 iter in   3.911959 sec =   15.648 msec
        Quarter stroke:   500 iter in   6.194812 sec =   12.390 msec
        Short forward:    400 iter in   2.468873 sec =    6.172 msec
        Short backward:   400 iter in   1.654048 sec =    4.135 msec
        Seq outer:       2048 iter in   0.267607 sec =    0.131 msec
        Seq inner:       2048 iter in   0.283663 sec =    0.139 msec
Transfer rates:
        outside:       102400 kbytes in   3.457052 sec =    29621 kbytes/sec
        middle:        102400 kbytes in   3.437947 sec =    29785 kbytes/sec
        inside:        102400 kbytes in   3.399791 sec =    30119 kbytes/sec
This is Sata2 drive, but my motherboard supports only SATA150
ad4: 238475MB <WDC WD2500KS-00MJB0 02.01C03> at ata2-master SATA150
Code:
killasmurf86 $ diskinfo -c -t /dev/ad4                                         
/dev/ad4
        512             # sectorsize
        250059350016    # mediasize in bytes (233G)
        488397168       # mediasize in sectors
        484521          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:WD-WCANK6032099      # Disk ident.

I/O command overhead:
        time to read 10MB block      0.170625 sec       =    0.008 msec/sector
        time to read 20480 sectors   1.909460 sec       =    0.093 msec/sector
        calculated command overhead                     =    0.085 msec/sector

Seek times:
        Full stroke:      250 iter in   5.499300 sec =   21.997 msec
        Half stroke:      250 iter in   3.857633 sec =   15.431 msec
        Quarter stroke:   500 iter in   6.175472 sec =   12.351 msec
        Short forward:    400 iter in   3.114933 sec =    7.787 msec
        Short backward:   400 iter in   2.817123 sec =    7.043 msec
        Seq outer:       2048 iter in   0.223266 sec =    0.109 msec
        Seq inner:       2048 iter in   0.228880 sec =    0.112 msec
Transfer rates:
        outside:       102400 kbytes in   1.627308 sec =    62926 kbytes/sec
        middle:        102400 kbytes in   1.768288 sec =    57909 kbytes/sec
        inside:        102400 kbytes in   2.911403 sec =    35172 kbytes/sec

umass0: <USB 2.0 USB Flash Drive, class 0/0, rev 2.00/1.00, addr 2> on uhub4
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <USB 2.0 USB Flash Drive 0.00> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 15424MB (31588352 512 byte sectors: 255H 63S/T 1966C)
adata PD16 16GB flash-key:
Code:
killasmurf86 $ diskinfo -c -t /dev/da0                                         
/dev/da0
        512             # sectorsize
        16173236224     # mediasize in bytes (15G)
        31588352        # mediasize in sectors
        1966            # Cylinders according to firmware.
        255             # Heads according to firmware.
        63              # Sectors according to firmware.

I/O command overhead:
        time to read 10MB block      0.437673 sec       =    0.021 msec/sector
        time to read 20480 sectors  15.357320 sec       =    0.750 msec/sector
        calculated command overhead                     =    0.728 msec/sector

Seek times:
        Full stroke:      250 iter in   0.187515 sec =    0.750 msec
        Half stroke:      250 iter in   0.187504 sec =    0.750 msec
        Quarter stroke:   500 iter in   0.374901 sec =    0.750 msec
        Short forward:    400 iter in   0.300024 sec =    0.750 msec
        Short backward:   400 iter in   0.299988 sec =    0.750 msec
        Seq outer:       2048 iter in   1.535759 sec =    0.750 msec
        Seq inner:       2048 iter in   1.535641 sec =    0.750 msec
Transfer rates:
        outside:       102400 kbytes in   4.374167 sec =    23410 kbytes/sec
        middle:        102400 kbytes in   4.374206 sec =    23410 kbytes/sec
        inside:        102400 kbytes in   4.259575 sec =    24040 kbytes/sec
umass0: <USBest Technology USB Mass Storage Device, class 0/0, rev 2.00/1.00, addr 2> on uhub4
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <UDISK PDU20_1G 73C2.0 0.00> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 983MB (2015231 512 byte sectors: 64H 32S/T 983C)
Code:
killasmurf86 $ diskinfo -c -t /dev/da0                                         
/dev/da0
        512             # sectorsize
        1031798272      # mediasize in bytes (984M)
        2015231         # mediasize in sectors
        983             # Cylinders according to firmware.
        64              # Heads according to firmware.
        32              # Sectors according to firmware.

I/O command overhead:
        time to read 10MB block      0.892140 sec       =    0.044 msec/sector
        time to read 20480 sectors  15.357453 sec       =    0.750 msec/sector
        calculated command overhead                     =    0.706 msec/sector

Seek times:
        Full stroke:    diskinfo: read error or disk too small for test.: Input/output error
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Old 13th November 2008
DrJ DrJ is offline
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Seagate 15K.3 (SCSI) drive, about five years old:

Code:
pinot# diskinfo -c -t /dev/da0
/dev/da0
	512         	# sectorsize
	36703934464 	# mediasize in bytes (34G)
	71687372    	# mediasize in sectors
	4462        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.143325 sec	=    0.007 msec/sector
	time to read 20480 sectors   4.014771 sec	=    0.196 msec/sector
	calculated command overhead			=    0.189 msec/sector

Seek times:
	Full stroke:	  250 iter in   2.194760 sec =    8.779 msec
	Half stroke:	  250 iter in   1.737971 sec =    6.952 msec
	Quarter stroke:	  500 iter in   2.936857 sec =    5.874 msec
	Short forward:	  400 iter in   1.671453 sec =    4.179 msec
	Short backward:	  400 iter in   0.840368 sec =    2.101 msec
	Seq outer:	 2048 iter in   0.243329 sec =    0.119 msec
	Seq inner:	 2048 iter in   0.247530 sec =    0.121 msec
Transfer rates:
	outside:       102400 kbytes in   1.402288 sec =    73024 kbytes/sec
	middle:        102400 kbytes in   1.568473 sec =    65286 kbytes/sec
	inside:        102400 kbytes in   2.133166 sec =    48004 kbytes/sec
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Old 13th November 2008
DrJ DrJ is offline
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Seagate 15K.4 (SCSI), about 4 years old:

Code:
pinot# diskinfo -c -t /dev/da1
/dev/da1
	512         	# sectorsize
	36703934464 	# mediasize in bytes (34G)
	71687372    	# mediasize in sectors
	4462        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.141310 sec	=    0.007 msec/sector
	time to read 20480 sectors   4.005664 sec	=    0.196 msec/sector
	calculated command overhead			=    0.189 msec/sector

Seek times:
	Full stroke:	  250 iter in   2.293915 sec =    9.176 msec
	Half stroke:	  250 iter in   1.676370 sec =    6.705 msec
	Quarter stroke:	  500 iter in   2.717760 sec =    5.436 msec
	Short forward:	  400 iter in   1.457543 sec =    3.644 msec
	Short backward:	  400 iter in   0.886641 sec =    2.217 msec
	Seq outer:	 2048 iter in   0.392236 sec =    0.192 msec
	Seq inner:	 2048 iter in   0.540832 sec =    0.264 msec
Transfer rates:
	outside:       102400 kbytes in   1.098587 sec =    93211 kbytes/sec
	middle:        102400 kbytes in   1.232444 sec =    83087 kbytes/sec
	inside:        102400 kbytes in   1.892680 sec =    54103 kbytes/sec
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Old 13th November 2008
DrJ DrJ is offline
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Maxtor 10K5 (SCSI) about three years old:

Code:
pinot# diskinfo -c -t /dev/da2
/dev/da2
	512         	# sectorsize
	73557090304 	# mediasize in bytes (69G)
	143666192   	# mediasize in sectors
	8942        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.126083 sec	=    0.006 msec/sector
	time to read 20480 sectors   3.888857 sec	=    0.190 msec/sector
	calculated command overhead			=    0.184 msec/sector

Seek times:
	Full stroke:	  250 iter in   2.713510 sec =   10.854 msec
	Half stroke:	  250 iter in   2.131789 sec =    8.527 msec
	Quarter stroke:	  500 iter in   3.611677 sec =    7.223 msec
	Short forward:	  400 iter in   1.719398 sec =    4.298 msec
	Short backward:	  400 iter in   1.151218 sec =    2.878 msec
	Seq outer:	 2048 iter in   0.601458 sec =    0.294 msec
	Seq inner:	 2048 iter in   3.763039 sec =    1.837 msec
Transfer rates:
	outside:       102400 kbytes in   1.217299 sec =    84121 kbytes/sec
	middle:        102400 kbytes in   1.422332 sec =    71994 kbytes/sec
	inside:        102400 kbytes in   2.195861 sec =    46633 kbytes/sec
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Old 13th November 2008
DrJ DrJ is offline
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Maxtor 15K2 (SCSI), also about three years old.

Code:
diskinfo -c -t /dev/da0
/dev/da0
	512         	# sectorsize
	73557090304 	# mediasize in bytes (69G)
	143666192   	# mediasize in sectors
	8942        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.115576 sec	=    0.006 msec/sector
	time to read 20480 sectors   2.665809 sec	=    0.130 msec/sector
	calculated command overhead			=    0.125 msec/sector

Seek times:
	Full stroke:	  250 iter in   1.931961 sec =    7.728 msec
	Half stroke:	  250 iter in   1.526477 sec =    6.106 msec
	Quarter stroke:	  500 iter in   2.579356 sec =    5.159 msec
	Short forward:	  400 iter in   1.369708 sec =    3.424 msec
	Short backward:	  400 iter in   1.230223 sec =    3.076 msec
	Seq outer:	 2048 iter in   0.219476 sec =    0.107 msec
	Seq inner:	 2048 iter in   2.323221 sec =    1.134 msec
Transfer rates:
	outside:       102400 kbytes in   1.088818 sec =    94047 kbytes/sec
	middle:        102400 kbytes in   1.177631 sec =    86954 kbytes/sec
	inside:        102400 kbytes in   1.517659 sec =    67472 kbytes/sec
And yes, all my BSD boxes use SCSI drives.

Last edited by DrJ; 13th November 2008 at 02:03 AM.
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Old 13th November 2008
DrJ DrJ is offline
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Seagate 10K.6 (SCSI), six (?) years old.

Code:
%diskinfo -c -t /dev/da1
/dev/da1
	512         	# sectorsize
	73407865856 	# mediasize in bytes (68G)
	143374738   	# mediasize in sectors
	8924        	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.

I/O command overhead:
	time to read 10MB block      0.153230 sec	=    0.007 msec/sector
	time to read 20480 sectors   2.956085 sec	=    0.144 msec/sector
	calculated command overhead			=    0.137 msec/sector

Seek times:
	Full stroke:	  250 iter in   2.993079 sec =   11.972 msec
	Half stroke:	  250 iter in   2.252052 sec =    9.008 msec
	Quarter stroke:	  500 iter in   3.684958 sec =    7.370 msec
	Short forward:	  400 iter in   1.307076 sec =    3.268 msec
	Short backward:	  400 iter in   1.153268 sec =    2.883 msec
	Seq outer:	 2048 iter in   0.247746 sec =    0.121 msec
	Seq inner:	 2048 iter in   0.247390 sec =    0.121 msec
Transfer rates:
	outside:       102400 kbytes in   1.510717 sec =    67782 kbytes/sec
	middle:        102400 kbytes in   1.835884 sec =    55777 kbytes/sec
	inside:        102400 kbytes in   2.726458 sec =    37558 kbytes/sec
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Old 13th November 2008
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Cruzer Micro 2 GB USB stick:
Code:
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SanDisk U3 Cruzer Micro 2.18> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 1959MB (4013713 512 byte sectors: 255H 63S/T 249C)
Code:
# diskinfo -c -t /dev/da0
Password:
/dev/da0
        512             # sectorsize
        2055021056      # mediasize in bytes (1.9G)
        4013713         # mediasize in sectors
        249             # Cylinders according to firmware.
        255             # Heads according to firmware.
        63              # Sectors according to firmware.

I/O command overhead:
        time to read 10MB block      0.604066 sec       =    0.029 msec/sector
        time to read 20480 sectors  20.573283 sec       =    1.005 msec/sector
        calculated command overhead                     =    0.975 msec/sector

Seek times:
        Full stroke:      250 iter in   0.254135 sec =    1.017 msec
        Half stroke:    diskinfo: read error or disk too small for test.: Input/output error
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Old 13th November 2008
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I have three of these drives in my home system. The results are within 3% of each other for all three. So I've only posted the data from one:

Code:
ad4: detached                              
ad4: 152627MB <WDC WD1600JS-56MHB1 10.02E01> at ata2-master SATA150
ad4: 152627MB <WDC WD1600JS-56MHB1 10.02E01> at ata2-master SATA150
Code:
# diskinfo -c -t /dev/ad4
/dev/ad4                                               
        512             # sectorsize                   
        160041885696    # mediasize in bytes (149G)    
        312581808       # mediasize in sectors         
        310101          # Cylinders according to firmware.
        16              # Heads according to firmware.    
        63              # Sectors according to firmware.  
        ad:WD-WCANMD687666      # Disk ident.             

I/O command overhead:
        time to read 10MB block      0.465710 sec       =    0.023 msec/sector
        time to read 20480 sectors   1.906245 sec       =    0.093 msec/sector
        calculated command overhead                     =    0.070 msec/sector

Seek times:
        Full stroke:      250 iter in   5.352183 sec =   21.409 msec
        Half stroke:      250 iter in   3.744667 sec =   14.979 msec
        Quarter stroke:   500 iter in   6.328028 sec =   12.656 msec
        Short forward:    400 iter in   1.750907 sec =    4.377 msec
        Short backward:   400 iter in   2.813370 sec =    7.033 msec
        Seq outer:       2048 iter in   0.463089 sec =    0.226 msec
        Seq inner:       2048 iter in   0.216843 sec =    0.106 msec
Transfer rates:                                                     
        outside:       102400 kbytes in   1.736854 sec =    58957 kbytes/sec
        middle:        102400 kbytes in   1.900757 sec =    53873 kbytes/sec
        inside:        102400 kbytes in   3.323692 sec =    30809 kbytes/sec
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Old 13th November 2008
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2 GB CompactFlash card in an CF-to-IDE adapter on our backup server at work:
Code:
ad0: 1911MB <TRANSCEND 20080128> at ata0-master PIO4
Code:
# diskinfo -c -t /dev/ad0
/dev/ad0
        512             # sectorsize
        2004516864      # mediasize in bytes (1.9G)
        3915072         # mediasize in sectors
        3884            # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:20080611x2000001097  # Disk ident.

I/O command overhead:
        time to read 10MB block      2.514791 sec       =    0.123 msec/sector
        time to read 20480 sectors   5.389585 sec       =    0.263 msec/sector
        calculated command overhead                     =    0.140 msec/sector

Seek times:
        Full stroke:      250 iter in   0.071261 sec =    0.285 msec
        Half stroke:    diskinfo: read error or disk too small for test.: Input/output error
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Old 13th November 2008
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One of the WD 500 GB SATA300 drives in our mega backup server (there are 12 of them):
Code:
da20 at twa1 bus 0 target 8 lun 0
da20: <AMCC 9650SE-12M DISK 3.06> Fixed Direct Access SCSI-5 device
da20: 100.000MB/s transfers
da20: 476827MB (976541696 512 byte sectors: 255H 63S/T 60786C)
Code:
# diskinfo -c -t /dev/da20
/dev/da20                                          
        512             # sectorsize               
        499989348352    # mediasize in bytes (466G)
        976541696       # mediasize in sectors     
        60786           # Cylinders according to firmware.
        255             # Heads according to firmware.    
        63              # Sectors according to firmware.  

I/O command overhead:
        time to read 10MB block      0.153450 sec       =    0.007 msec/sector
        time to read 20480 sectors   3.595345 sec       =    0.176 msec/sector
        calculated command overhead                     =    0.168 msec/sector

Seek times:
        Full stroke:      250 iter in   5.354324 sec =   21.417 msec
        Half stroke:      250 iter in   3.947506 sec =   15.790 msec
        Quarter stroke:   500 iter in   6.297917 sec =   12.596 msec
        Short forward:    400 iter in   2.546029 sec =    6.365 msec
        Short backward:   400 iter in   2.247438 sec =    5.619 msec
        Seq outer:       2048 iter in   0.420714 sec =    0.205 msec
        Seq inner:       2048 iter in   0.380689 sec =    0.186 msec
Transfer rates:
        outside:       102400 kbytes in   1.302843 sec =    78597 kbytes/sec
        middle:        102400 kbytes in   1.497861 sec =    68364 kbytes/sec
        inside:        102400 kbytes in   2.729925 sec =    37510 kbytes/sec
One of the Seagate 400 GB SATA300 drives in same server (there are 12 of them):
Code:
da2 at twa0 bus 0 target 2 lun 0
da2: <AMCC 9550SXU-16 DISK 3.04> Fixed Direct Access SCSI-3 device
da2: 100.000MB/s transfers
da2: 381459MB (781228032 512 byte sectors: 255H 63S/T 48629C)
Code:
# diskinfo -c -t /dev/da2 
/dev/da2                                           
        512             # sectorsize               
        399988752384    # mediasize in bytes (373G)
        781228032       # mediasize in sectors     
        48629           # Cylinders according to firmware.
        255             # Heads according to firmware.
        63              # Sectors according to firmware.

I/O command overhead:
        time to read 10MB block      0.174597 sec       =    0.009 msec/sector
        time to read 20480 sectors   2.579550 sec       =    0.126 msec/sector
        calculated command overhead                     =    0.117 msec/sector

Seek times:
        Full stroke:      250 iter in   5.532021 sec =   22.128 msec
        Half stroke:      250 iter in   3.820743 sec =   15.283 msec
        Quarter stroke:   500 iter in   6.219938 sec =   12.440 msec
        Short forward:    400 iter in   2.524233 sec =    6.311 msec
        Short backward:   400 iter in   1.803372 sec =    4.508 msec
        Seq outer:       2048 iter in   0.288372 sec =    0.141 msec
        Seq inner:       2048 iter in   0.303830 sec =    0.148 msec
Transfer rates:
        outside:       102400 kbytes in   1.704879 sec =    60063 kbytes/sec
        middle:        102400 kbytes in   1.751955 sec =    58449 kbytes/sec
        inside:        102400 kbytes in   2.792769 sec =    36666 kbytes/sec
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Old 13th November 2008
hamba hamba is offline
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Here is mine

Code:
ad12: 152627MB <GB0160CAABV HPG1> at ata6-master SATA150

> sudo diskinfo -t -c /dev/ad12
Password:
/dev/ad12
        512             # sectorsize
        160041885696    # mediasize in bytes (149G)
        312581808       # mediasize in sectors
        310101          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:6RX4KZRZ     # Disk ident.

I/O command overhead:
        time to read 10MB block      0.150498 sec       =    0.007 msec/sector
        time to read 20480 sectors   2.125652 sec       =    0.104 msec/sector
        calculated command overhead                     =    0.096 msec/sector

Seek times:
        Full stroke:      250 iter in   6.223675 sec =   24.895 msec
        Half stroke:      250 iter in   4.319212 sec =   17.277 msec
        Quarter stroke:   500 iter in   6.789967 sec =   13.580 msec
        Short forward:    400 iter in   2.002273 sec =    5.006 msec
        Short backward:   400 iter in   1.881687 sec =    4.704 msec
        Seq outer:       2048 iter in   0.426395 sec =    0.208 msec
        Seq inner:       2048 iter in   0.438380 sec =    0.214 msec
Transfer rates:
        outside:       102400 kbytes in   1.479959 sec =    69191 kbytes/sec
        middle:        102400 kbytes in   1.766187 sec =    57978 kbytes/sec
        inside:        102400 kbytes in   3.260754 sec =    31404 kbytes/sec
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Old 13th November 2008
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DutchDaemon DutchDaemon is offline
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ad0: 76319MB <WDC WD800JB-00JJC0 05.01C05> at ata0-master UDMA100

Code:
 /dev/ad0
        512             # sectorsize
        80026361856     # mediasize in bytes (75G)
        156301488       # mediasize in sectors
        155061          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:WD-WCAM9V946444      # Disk ident.

I/O command overhead:
        time to read 10MB block      0.185617 sec       =    0.009 msec/sector
        time to read 20480 sectors   2.065096 sec       =    0.101 msec/sector
        calculated command overhead                     =    0.092 msec/sector

Seek times:
        Full stroke:      250 iter in   5.380797 sec =   21.523 msec
        Half stroke:      250 iter in   3.830487 sec =   15.322 msec
        Quarter stroke:   500 iter in   6.384590 sec =   12.769 msec
        Short forward:    400 iter in   2.258881 sec =    5.647 msec
        Short backward:   400 iter in   2.426586 sec =    6.066 msec
        Seq outer:       2048 iter in   0.233361 sec =    0.114 msec
        Seq inner:       2048 iter in   0.234686 sec =    0.115 msec
Transfer rates:
        outside:       102400 kbytes in   1.800840 sec =    56862 kbytes/sec
        middle:        102400 kbytes in   1.951145 sec =    52482 kbytes/sec
        inside:        102400 kbytes in   3.060375 sec =    33460 kbytes/sec
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Old 13th November 2008
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ad8: 114473MB <Seagate ST9120823AS 3.AHE> at ata4-master SATA300

Code:
 /dev/ad8
        512             # sectorsize
        120034123776    # mediasize in bytes (112G)
        234441648       # mediasize in sectors
        232581          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:5NJ185HQ     # Disk ident.

I/O command overhead:
        time to read 10MB block      0.260630 sec       =    0.013 msec/sector
        time to read 20480 sectors   1.152744 sec       =    0.056 msec/sector
        calculated command overhead                     =    0.044 msec/sector

Seek times:
        Full stroke:      250 iter in   6.008694 sec =   24.035 msec
        Half stroke:      250 iter in   4.085139 sec =   16.341 msec
        Quarter stroke:   500 iter in   6.405515 sec =   12.811 msec
        Short forward:    400 iter in   1.810569 sec =    4.526 msec
        Short backward:   400 iter in   1.762313 sec =    4.406 msec
        Seq outer:       2048 iter in   0.224249 sec =    0.109 msec
        Seq inner:       2048 iter in   0.147590 sec =    0.072 msec
Transfer rates:
        outside:       102400 kbytes in   1.727682 sec =    59270 kbytes/sec
        middle:        102400 kbytes in   2.047073 sec =    50023 kbytes/sec
        inside:        102400 kbytes in   3.137049 sec =    32642 kbytes/sec
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Old 13th November 2008
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ephemera ephemera is offline
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Code:
ad0: 8192MB <VMware Virtual IDE Hard Drive 00000001> at ata0-master UDMA33

(Vmware WS6 / Vista / NTFS / ST3320820AS)

/dev/ad0
        512             # sectorsize
        8589934592      # mediasize in bytes (8.0G)
        16777216        # mediasize in sectors
        17753           # Cylinders according to firmware.
        15              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:00000000000000000001 # Disk ident.

I/O command overhead:
        time to read 10MB block      0.216514 sec       =    0.011 msec/sector
        time to read 20480 sectors   2.498505 sec       =    0.122 msec/sector
        calculated command overhead                     =    0.111 msec/sector

Seek times:
        Full stroke:      250 iter in   1.246622 sec =    4.986 msec
        Half stroke:      250 iter in   1.235733 sec =    4.943 msec
        Quarter stroke:   500 iter in   1.536449 sec =    3.073 msec
        Short forward:    400 iter in   1.681248 sec =    4.203 msec
        Short backward:   400 iter in   1.448493 sec =    3.621 msec
        Seq outer:       2048 iter in   0.336718 sec =    0.164 msec
        Seq inner:       2048 iter in   0.275455 sec =    0.134 msec
Transfer rates:
        outside:       102400 kbytes in   1.967604 sec =    52043 kbytes/sec
        middle:        102400 kbytes in   0.463944 sec =   220716 kbytes/sec
        inside:        102400 kbytes in   0.270255 sec =   378901 kbytes/sec
PHK has said it himself that this is a naive benchmark and the above data confirms it.
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Old 13th November 2008
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vermaden vermaden is offline
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Quote:
Originally Posted by ephemera View Post
PHK has said it himself that this is a naive benchmark and the above data confirms it.
Yes, but your results are from Virtual image on disk within wirtualization, You wil ALWAYS get "strange" results about disk performance when you use disk in a file for your virtualized OS, I also got strange and realtively faster results then the drive can do even in slower QEMU.
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Old 13th November 2008
DrJ DrJ is offline
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Quote:
Originally Posted by vermaden View Post
Yes, but your results are from Virtual image on disk within wirtualization, You wil ALWAYS get "strange" results about disk performance when you use disk in a file for your virtualized OS, I also got strange and realtively faster results then the drive can do even in slower QEMU.
I agree. I got "strange" results when benchmarking Windows VMs too. VMware in particular does a good job with caching, and that seems to confuse the benchmarks. Still, the "seat-of-the-pants" meter agrees subjectively with the speed differences of the various drives I reported above.
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Old 13th November 2008
richardpl richardpl is offline
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ad0: 9641MB <QUANTUM FIREBALLlct15 10 A01.0F00> at ata0-master UDMA66

Code:
ad0
        512             # sectorsize
        10110320640     # mediasize in bytes (9.4G)
        19746720        # mediasize in sectors
        19590           # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.

I/O command overhead:
        time to read 10MB block      1.626129 sec       =    0.079 msec/sector
        time to read 20480 sectors   6.490175 sec       =    0.317 msec/sector
        calculated command overhead                     =    0.238 msec/sector

Seek times:
        Full stroke:      250 iter in   5.547643 sec =   22.191 msec
        Half stroke:      250 iter in   4.592802 sec =   18.371 msec
        Quarter stroke:   500 iter in   8.084585 sec =   16.169 msec
        Short forward:    400 iter in   3.304525 sec =    8.261 msec
        Short backward:   400 iter in   3.932657 sec =    9.832 msec
        Seq outer:       2048 iter in   0.381241 sec =    0.186 msec
        Seq inner:       2048 iter in   0.380521 sec =    0.186 msec
Transfer rates:
        outside:       102400 kbytes in  16.241850 sec =     6305 kbytes/sec
        middle:        102400 kbytes in  16.241759 sec =     6305 kbytes/sec
        inside:        102400 kbytes in  16.240737 sec =     6305 kbytes/sec
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Old 13th November 2008
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ad4: 76318MB <Seagate ST380215AS 3.AAD> at ata2-master SATA150

Code:
/dev/ad4
	512         	# sectorsize
	80025280000 	# mediasize in bytes (75G)
	156299375   	# mediasize in sectors
	155058      	# Cylinders according to firmware.
	16          	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ad:6RA3Q2JE 	# Disk ident.

I/O command overhead:
	time to read 10MB block      0.159474 sec	=    0.008 msec/sector
	time to read 20480 sectors   1.646036 sec	=    0.080 msec/sector
	calculated command overhead			=    0.073 msec/sector

Seek times:
	Full stroke:	  250 iter in   6.099554 sec =   24.398 msec
	Half stroke:	  250 iter in   4.340127 sec =   17.361 msec
	Quarter stroke:	  500 iter in   6.732474 sec =   13.465 msec
	Short forward:	  400 iter in   1.277421 sec =    3.194 msec
	Short backward:	  400 iter in   1.257770 sec =    3.144 msec
	Seq outer:	 2048 iter in   0.179644 sec =    0.088 msec
	Seq inner:	 2048 iter in   0.200410 sec =    0.098 msec
Transfer rates:
	outside:       102400 kbytes in   1.378737 sec =    74271 kbytes/sec
	middle:        102400 kbytes in   1.709696 sec =    59894 kbytes/sec
	inside:        102400 kbytes in   2.821554 sec =    36292 kbytes/sec
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ad7: 152626MB <Maxtor 6V160E0 VA111900> at ata3-slave SATA150

Code:
/dev/ad7
	512         	# sectorsize
	160040803840	# mediasize in bytes (149G)
	312579695   	# mediasize in sectors
	310098      	# Cylinders according to firmware.
	16          	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ad:V30M97QG 	# Disk ident.

I/O command overhead:
	time to read 10MB block      0.162506 sec	=    0.008 msec/sector
	time to read 20480 sectors   1.793764 sec	=    0.088 msec/sector
	calculated command overhead			=    0.080 msec/sector

Seek times:
	Full stroke:	  250 iter in   8.099601 sec =   32.398 msec
	Half stroke:	  250 iter in   5.894065 sec =   23.576 msec
	Quarter stroke:	  500 iter in   9.326539 sec =   18.653 msec
	Short forward:	  400 iter in   2.638167 sec =    6.595 msec
	Short backward:	  400 iter in   2.622933 sec =    6.557 msec
	Seq outer:	 2048 iter in   0.224938 sec =    0.110 msec
	Seq inner:	 2048 iter in   0.218892 sec =    0.107 msec
Transfer rates:
	outside:       102400 kbytes in   1.473762 sec =    69482 kbytes/sec
	middle:        102400 kbytes in   1.724482 sec =    59380 kbytes/sec
	inside:        102400 kbytes in   2.726944 sec =    37551 kbytes/sec
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