zodb / relstorage / 843

91%

master: 92%

Pull #254

travis-ci

Rework to use bytearray buffers and pack_into.

This seems to be even faster:

+--------------------------------------+----------+------------------------------+
| Benchmark                            | copy_buf | copy_buf2                    |
+======================================+==========+==============================+
| psycopg2_hf: add 1000 objects        | 100 ms   | 80.2 ms: 1.25x faster (-20%) |
+--------------------------------------+----------+------------------------------+
| psycopg2_hf: update 1000 objects     | 115 ms   | 87.0 ms: 1.32x faster (-24%) |

Compared to master:

+--------------------------------------+-----------+------------------------------+
| Benchmark                            | copy_orig | copy_buf2                    |
+======================================+===========+==============================+
| psycopg2_hf: add 1000 objects        | 134 ms    | 80.2 ms: 1.67x faster (-40%) |
+--------------------------------------+-----------+------------------------------+
| psycopg2_hf: update 1000 objects     | 144 ms    | 87.0 ms: 1.66x faster (-40%) |

211 of 211 new or added lines in 14 files covered. (100.0%)

11256 of 12313 relevant lines covered (91.42%)

3.61 hits per line