[mbrubeck]

If you run the benchmark, the results include a list of the tests with links to short explanations.

EDIT: Click to the results page and explanation links: http://bit.ly/cXTBUb (using a redirect because HN broke when I used the real URI)

Here's the list:

  ai:                          922.9ms +/- 3.2%
    astar:                     922.9ms +/- 3.2%

  audio:                      5564.5ms +/- 3.4%
    beat-detection:           1996.1ms +/- 5.2%
    dft:                       821.8ms +/- 6.8%
    fft:                      1965.6ms +/- 6.0%
    oscillator:                781.0ms +/- 0.9%

  imaging:                    2875.9ms +/- 1.4%
    gaussian-blur:            1271.2ms +/- 1.1%
    darkroom:                  510.1ms +/- 0.7%
    desaturate:               1094.6ms +/- 4.0%

  json:                        365.9ms +/- 1.6%
    parse-financial:           235.5ms +/- 1.6%
    stringify-tinderbox:       130.4ms +/- 2.1%

  stanford:                   2392.1ms +/- 3.2%
    crypto-aes:                468.7ms +/- 2.0%
    crypto-ccm:                656.2ms +/- 3.5%
    crypto-pbkdf2:            1063.0ms +/- 4.5%
    crypto-sha256-iterative:   204.2ms +/- 2.9%

[wmf]

Looks like a heavy focus on compute-intensive tasks. A* is definitely worth optimizing since it will help games.