Did you read README.ARM in splay's archive? For best performances you need to add some compiler flags by hand. Also you could use the splay binary included in the ramdisk image I mentionned in my last mail.
Yes, I followed the README.ARM instructions, and I also tried using the binary from your ramdisk image.
Or send me your both binaries so I'll try them on my system.
Your binaries are probably fine, but do you want me to send you a `time' program? (If so, please follow up privately.) You could try timing the pure decoding time like I did by dumping the PCM output to /dev/null.
I'm also curious how the threads issue is manifested on the SA-1110.
Cheers, -rob