Update the performance benchmark results

[hungptit]

From my latest benchmark results, grep is faster than ucg even though it only uses a single thread. Beside that can you add fgrep into the list?

Below are the performance benchmark results obtained using boost source code and Mark Twain's book in my MacBook pro.

./all_tests
Celero
Timer resolution: 0.001000 us
-----------------------------------------------------------------------------------------------------------------------------------------------
     Group      |   Experiment    |   Prob. Space   |     Samples     |   Iterations    |    Baseline     |  us/Iteration   | Iterations/sec  |
-----------------------------------------------------------------------------------------------------------------------------------------------
mark_twain      | grep            |               0 |               5 |               1 |         1.00000 |   1299385.00000 |            0.77 |
boost_source    | grep            |               0 |               5 |               1 |         1.00000 |   1545215.00000 |            0.65 |
mark_twain      | ag              |               0 |               5 |               1 |         1.73053 |   2248620.00000 |            0.44 |
mark_twain      | ripgrep         |               0 |               5 |               1 |         0.68130 |    885275.00000 |            1.13 |
mark_twain      | ucg             |               0 |               5 |               1 |         0.96383 |   1252389.00000 |            0.80 |
mark_twain      | fgrep_mmap      |               0 |               5 |               1 |         0.54665 |    710308.00000 |            1.41 |
mark_twain      | fgrep_default   |               0 |               5 |               1 |         0.50417 |    655106.00000 |            1.53 |
boost_source    | ag              |               0 |               5 |               1 |         1.16845 |   1805503.00000 |            0.55 |
boost_source    | ripgrep         |               0 |               5 |               1 |         1.05553 |   1631014.00000 |            0.61 |
boost_source    | ucg             |               0 |               5 |               1 |         1.56576 |   2419435.00000 |            0.41 |
boost_source    | fgrep           |               0 |               5 |               1 |         1.11264 |   1719263.00000 |            0.58 |
Complete.

[BurntSushi]

Could you please give enough details such that someone else can reliably reproduce your benchmark?

[hungptit]

I forgot to include link to my benchmark. You can find a more information about how I create my benchmark here https://github.com/hungptit/fastgrep and all binaries can be downloaded this repo https://github.com/hungptit/tools. Let me know if you need more information.