New package: cache-calibrator

The Calibrator is a small C program that is supposed to analyze
a computers (cache-) memory system and extract the following
parameters:

    number of cache levels
    for each cache level:
        its size
        its linesize
        its access/miss latency
    main memory access latency
    number of TLB levels
    for each TLB level:
        its capacity (i.e. number of entries)
        the pagesize used
        the TLB miss latency

http://homepages.cwi.nl/~manegold/Calibrator/

It is also recommended as a load generator for realtime testing in:

https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO#Benchmarking



[Peter: reformat help text, fix extract step]
Signed-off-by: Stephan Hoffmann <sho@relinux.de>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>