USB Speed

[blejku]

Welcome
I plugged the USB drives .. one of the HDD by the converter IDE, second is a stick
The problem is that the speed does not exceed 5Mega Bytes / sec. Regardless of the file system. EXT3, EXT4 FAT32. About NTFS will not mention because they are known problems with it.
Does anyone know how to deal with it?
20-30% CPU use but busy or SDB1 SDA1 device is 100%
It is the same on Debian R3 and R4

[progmetalbg]

I tested my NTFS formatted Transcend JetFlash 16 GB USB flash drive on A20-OLinuXino-MICRO:

Code Select Expand

[root@alarm-a20 bobby]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   538 MB in  2.00 seconds = 268.69 MB/sec
Timing buffered disk reads:  82 MB in  3.06 seconds =  26.76 MB/sec


[root@alarm-a20 mnt]# dd if=big_file_on_the_flash_drive of=/dev/zero
886241+0 records in
886240+0 records out
453754880 bytes (454 MB) copied, 18.5361 s, 24.5 MB/s

So speed is higher than 5 MB/s.

[blejku]

Thank you for your interest in the subject but it is not fully reliable because the transfer of approximately 100 Megabytes of me drops drastically

I did not write that it may mainly to writing.. my fault ..

Try a physical write an existing file 1 gigabyte to a flash drive