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Hi,

when I copy data from my PC to a share on RPi or the other way the write/read speed is around 900kb/s which is very very low. I was running before samba on raspian and by default the speed was around 3-4MB/s. And after overclocking to 1GHz the speed was around 10MB/s. So what can be the cause of this problem? The setup is the same, I just switched to this wonderfully designed SW. I looked around the filesystem but could not see the famous config.txt file to overclock the Broadcom CPU. Can this be actually done with your FW?

Thanks in advance.

Br

the raspberry has only a 100 Mbits/s lan port
So speed will never be higher then 7-8 Mbyte/s

Which file transfer server did you use (samba, ftp)? if you use SSH then speed will be lower due to encryption

other possibilities
- Also writing many small file will reduce writing speed.
- if you write to the SD card also that can lower speed.
- you use an usb hub and the hub is not set at high speed so using 1.1 mode instead of 2.0
- if you have running an mediaserver like twonky it might be busy with indexing the media files


we have no option to overclock the cpu. We use the standard ARCH-Linux kernel, its setup is in partition 1 on the sd card.

I did quickly some test on my rspb2 to see speed here, so far I only used it with an usb stick and SD card

writing to sd-card and an usb stick connected to usb port via samba
both have a write speed of 6.0-5.5 MByte/s and reading 7.0 -7.5 MByte/s
(fvdw-sl 16-0 copying a 350 MB media file)

Uhm, about the overclock.

Last week I overclocked my Rpi B+ to 900 Mhz. I did this by putting my SD-card in my PC and editing the config.txt which is in the root folder. NAS is still very stable and no temperature problems. I do use an aluminium case with heatsink on the CPU.

According with some rspb2 pages , you can try 1000Mhz.

I'm running it now at 1GHz, but as it is only running at that frequency when it needs there should be no temperture problems at all. I was running it at 1GHz before for a long time already.

Raspberry Pi shares the bus accross the ethernet and usb ports and, if I'm not wrong, processor. So of you have a lot of i/o to/from the usb, this slows down the Ethernet speed and viceversa.