[racket] Performance measurement per each thread

Hi I am a student in master course for Computer Engineering.

I am studying Racket for my research.
My one of goals is to measure the performance(cpu usages, memory, i/o..etc)
of each thread.

So I have two questions...

1) CPU, I/O usages

    Is there any way to measure CPU usage per each thread in run-time by
Racket?

2) Memory usages

   Also memory usages per each thread in rum-time??
   As I know Linux doesn't provide the way to measure memory usage per each
thread.
   So How about Racket?

Thanks :)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20121116/823c00ca/attachment.html>