Hi,
Following are the test results. Please comment up to which extent are they correct?
USB:
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root@namc-p2041:~# usb 1-1: new high speed USB device number 2 using fsl-ehci
scsi0 : usb-storage 1-1:1.0
scsi 0:0:0:0: Direct-Access freescale PMAP PQ: 0 ANSI: 0 CCS
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:0:0: [sda] 7831552 512-byte logical blocks: (4.00 GB/3.73 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] No Caching mode page present
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] No Caching mode page present
sd 0:0:0:0: [sda] Assuming drive cache: write through
sda: sda4
sd 0:0:0:0: [sda] No Caching mode page present
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Attached SCSI removable disk
FAT-fs (sda): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
root@namc-p2041:~# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 54 MB in 3.10 seconds = 17.40 MB/sec
SATA:
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ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: ATA-8: WDC WD5000BPVT-60HXZT3, 01.01A01, max UDMA/133
ata2.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 0/32)
ata2.00: configured for UDMA/133
ata1: No Device OR PHYRDY change,Hstatus = 0xa0000000
ata1: SATA link down (SStatus 0 SControl 300)
scsi 1:0:0:0: Direct-Access ATA WDC WD5000BPVT-6 01.0 PQ: 0 ANSI: 5
sd 1:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB) sd 1:0:0:0: Attached scsi generic sg0 type 0 sd 1:0:0:0: [sda] 4096-byte physical blocks sd 1:0:0:0: [sda] Write Protect is off sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1
sd 1:0:0:0: [sda] Attached SCSI disk
namc-p5020:~# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 225 MB in 3.12 seconds = 77 MB/sec
SD CARD:
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mmc0: new high speed SDHC card at address b368
mmcblk0: mmc0:b368 NCard 3.70 GiB
mmcblk0: p1 p2 < p5 p6 >
root@model:~# fdisk -l
Disk /dev/mmcblk0: 3973 MB, 3973054464 bytes
4 heads, 16 sectors/track, 121248 cylinders, total 7759872 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x92ef85ec
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 2048 43007 20480 83 Linux
/dev/mmcblk0p2 43008 7759871 3858432 5 Extended
/dev/mmcblk0p5 45056 6336511 3145728 83 Linux
/dev/mmcblk0p6 6338560 7387135 524288 83 Linux
root@model:~# df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 3.0G 892M 2.1G 30% /
/dev/root 3.0G 892M 2.1G 30% /
none 347M 152K 347M 1% /dev
tmpfs 347M 5.3M 342M 2% /var/volatile
tmpfs 347M 0 347M 0% /media/ram
root@model:~# hdparm -t /dev/mmcblk0
/dev/mmcblk0:
Timing buffered disk reads: 62 MB in 3.08 seconds = 20.13 MB/sec
NAND:
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NAND device: Manufacturer ID: 0x2c, Chip ID: 0xf1 (Micron MT29F1G08ABADAWP) 128MB
root@model:~# hdparm -t /dev/mtdblock4
/dev/mtdblock4:
Timing buffered disk reads: 18 MB in 3.13 seconds = 5.76 MB/sec
NOR:
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root@namc-p4080:~# hdparm -t /dev/mtdblock2
/dev/mtdblock2:
Timing buffered disk reads: 12 MB in 3.05 seconds = 3.93 MB/sec
Best regards,
Adeel