Meanwhile I've tested with an old USB memeory stick, which is way slower
than 
my new USB HDD, too. But all I get for writing to the SB Touch via WiFi
is 
4MBit net transfer rate. No matter of protocol (scp or SMB) or target
storage (USB or internal ramdisk => /tmp). Therefore, I'd guess the
limitation is not driven by the storage back-end. 

Since the CPU (a 500MHz ARM11 core) offers quite some processing power
( probably way more than required to handle 4MBit), I'd suspect the
scheduler of the kernel to be pretty restrictive regarding "non-focus"
functionality in favor of core task like serving and decoding audio
data or UI. (Are we dealing with a real-time kernel ?) Throttling
add-ons makes a lot of sense to ensure audio quailty. But the CPU time
allocation shouldn't be static. 

All my tests regarding WiFi transfer rates are done in idle mode (no
playing or streaming to other client). Full CPU power would be
available ...

How about stand-by mode ? Will it reduce clock speeds, etc ? (slow-down
the CPU ?)

Toby


-- 
streumix
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