May 26, 2011

Benchmark: Samsung S2 Portable 500GB USB 2.0 External HD

Benchmark results for Samsung S2 Portable 500GB USB 2.0 External HD Performance:
Write (K/sec): 34974 ( 52% of the HD Performance of my notebook )
Re-write (K/sec): 17612 ( 59% of the HD Performance of my notebook )
Read (K/sec): 46580 ( 64% of the HD Performance of my notebook )
Seeks/sec: 123.8 ( 164% of the HD Performance of my notebook )

Conclusion:
The theoretical speed limit for USB 2.0 would be 60 MByte/sec. The read speed is about 78% of this value wich is not bad. Even not feeling slow, this HD could be faster.

About tests:
Command line run on both notebooks:
# bonnie++ -n 0 -u 0 -r 8192 -f -b -d /media/Peter-ext3/bonnie/
Bonnie 1.96 @ Fedora 15


# hdparm -I /dev/sdb

/dev/sdb:

ATA device, with non-removable media
Model Number: SAMSUNG HM502JX
Serial Number: C2271F141A0TE5
Firmware Revision: 2AC101C4
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6
Standards:
Used: unknown (minor revision code 0x0028)
Supported: 8 7 6 5
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 976773168
Logical Sector size: 512 bytes
Physical Sector size: 512 bytes
device size with M = 1024*1024: 476940 MBytes
device size with M = 1000*1000: 500107 MBytes (500 GB)
cache/buffer size = 8192 KBytes
Form Factor: 2.5 inch
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = ?
Advanced power management level: disabled
Recommended acoustic management value: 254, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
Advanced Power Management feature set
Power-Up In Standby feature set
* SET_FEATURES required to spinup after power up
SET_MAX security extension
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* 64-bit World wide name
* IDLE_IMMEDIATE with UNLOAD
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* Idle-Unload when NCQ is active
* NCQ priority information
DMA Setup Auto-Activate optimization
Device-initiated interface power management
* Software settings preservation
* SMART Command Transport (SCT) feature set
* SCT Long Sector Access (AC1)
* SCT LBA Segment Access (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
supported: enhanced erase
128min for SECURITY ERASE UNIT. 128min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 50000f001afbe500
NAA : 5
IEEE OUI : 0000f0
Unique ID : 01afbe500
Checksum: correct

See more benchmarks: http://blog.parahard.com/search?q=benchmark
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