Benchmark day 1: Seagate Barracuda 500GB (ST500DM002-1BD142)

En una charla con un viejo amigo sobre discos rígidos actuales puse de ejemplo algunos a los que he tenido acceso habitualmente. A partir de eso se me ocurrió tratar de determinar qué diferencia de rendimiento hay entre los discos de mi equipo hogareño y mi estación de trabajo, por lo que recurrí a las tradicionales herramientas de prueba en Linux.

La primera prueba va contra el disco de la estación de trabajo, siguen las especificaciones y más abajo los resultados por si a alguno le interesa. He remarcado los datos más relevantes.

Seagate Barracuda 500GB
Modelo: ST500DM002-1BD142
Capacidad: 500 GB
Interfaz: SATA III
Caché: 16 MB
Velocidad: 7200 RPM
Tamaño de sector: 4K físico, 512 lógico

 
# hdparm -I /dev/sda

ATA device, with non-removable media
	Model Number:       ST500DM002-1BD142                       
	Serial Number:      [REDACTED]
	Firmware Revision:  KC45    
	Transport:          Serial, SATA Rev 3.0
Standards:
	Used: unknown (minor revision code 0x0029) 
	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:                  4096 bytes
	Logical Sector-0 offset:                  0 bytes
	device size with M = 1024*1024:      476940 MBytes
	device size with M = 1000*1000:      500107 MBytes (500 GB)
	cache/buffer size  = 16384 KBytes
	Nominal Media Rotation Rate: 7200
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 = 16
	Recommended acoustic management value: 208, current value: 208
	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
	   *	DOWNLOAD_MICROCODE
	    	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
	   *	WRITE_{DMA|MULTIPLE}_FUA_EXT
	   *	64-bit World wide name
	    	Write-Read-Verify feature set
	   *	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)
	   *	Gen3 signaling speed (6.0Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Phy event counters
	   *	unknown 76[15]
	    	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)
	    	unknown 206[12] (vendor specific)
	    	unknown 206[13] (vendor specific)
Security: 
	Master password revision code = 65534
		supported
	not	enabled
	not	locked
		frozen
	not	expired: security count
		supported: enhanced erase
	78min for SECURITY ERASE UNIT. 78min for ENHANCED SECURITY ERASE UNIT. 
Logical Unit WWN Device Identifier: 5000c5005022a977
	NAA		: 5
	IEEE OUI	: 000c50
	Unique ID	: 05022a977
Checksum: correct

 
# smartctl -x /dev/sda

smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.13.0] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     ST500DM002-1BD142
Serial Number:    [REDACTED]
LU WWN Device Id: 5 000c50 05022a977
Firmware Version: KC45
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 4
Local Time is:    Wed Jan 22 08:13:16 2014 ART
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)    Offline data collection activity
                                           was completed without error.
                                           Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)    The previous self-test routine completed
                                           without error or no self-test has ever
                                           been run.
Total time to complete Offline data collection:         (  600) seconds.
Offline data collection capabilities:
                                    (0x7b) SMART execute Offline immediate.
                                           Auto Offline data collection on/off support.
                                           Suspend Offline collection upon new command.
                                           Offline surface scan supported.
                                           Self-test supported.
                                           Conveyance Self-test supported.
                                           Selective Self-test supported.
SMART capabilities:            (0x0003)    Saves SMART data before entering 
                                           power-saving mode.
                                           Supports SMART auto save timer.
Error logging capability:        (0x01)    Error logging supported.
                                           General Purpose Logging supported.
Short self-test routine recommended polling time:           (   1) minutes.
Extended self-test routine recommended polling time:        (  79) minutes.
Conveyance self-test routine recommended polling time:      (   2) minutes.
SCT capabilities:            (0x303f)    SCT Status supported.
                                         SCT Error Recovery Control supported.
                                         SCT Feature Control supported.
                                         SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   110   099   006    -    33944
  3 Spin_Up_Time            PO----   100   100   000    -    0
  4 Start_Stop_Count        -O--CK   100   100   020    -    28
  5 Reallocated_Sector_Ct   PO--CK   100   100   036    -    0
  7 Seek_Error_Rate         POSR--   073   060   030    -    22473249
  9 Power_On_Hours          -O--CK   094   094   000    -    5328
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    28
183 Runtime_Bad_Block       -O--CK   100   100   000    -    0
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   061   054   045    -    39 (Min/Max 26/41)
194 Temperature_Celsius     -O---K   039   046   000    -    39 (0 16 0 0)
195 Hardware_ECC_Recovered  -O-RC-   044   026   000    -    33944
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    147261543683280
241 Total_LBAs_Written      ------   100   253   000    -    1601632265
242 Total_LBAs_Read         ------   100   253   000    -    3080541557
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    39 Celsius
Power Cycle Min/Max Temperature:     26/41 Celsius
Lifetime    Min/Max Temperature:     16/46 Celsius
Under/Over Temperature Limit Count:   0/0
SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        59 minutes
Min/Max recommended Temperature:     14/55 Celsius
Min/Max Temperature Limit:           10/60 Celsius
Temperature History Size (Index):    128 (77)

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2           19  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

 
# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   24824 MB in  2.00 seconds = 12423.12 MB/sec
 Timing buffered disk reads: 402 MB in  3.01 seconds = 133.65 MB/sec

 
$ dd if=/dev/zero of=archivo.img count=1K bs=1M conv=fdatasync

1024+0 registros leídos
1024+0 registros escritos
1073741824 bytes (1,1 GB) copiados, 9,96082 s, 108 MB/s

 
palimpsest – Prueba de rendimiento de solo lectura (clic para agrandar)

 
$ bonnie++

Version  1.96       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
soda         15808M  1105  96 112638   7 45472   4  4853  74 151543   6 271.5   4
Latency             10287us     436ms    1531ms   85189us     151ms    1255ms
Version  1.96       ------Sequential Create------ --------Random Create--------
soda                -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 26311  22 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
Latency             57369us     312us     316us     292us      14us      77us

 
Todas las pruebas fueron realizadas sobre una partición ext4.
Mañana van los resultados del otro disco.