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| author | eileencodes <eileencodes@gmail.com> | 2015-02-11 11:01:13 -0500 |
|---|---|---|
| committer | eileencodes <eileencodes@gmail.com> | 2015-02-11 11:01:13 -0500 |
| commit | fcfca5c70023ab01388a87be49a4a33e29d6cd43 (patch) | |
| tree | 18273ddccf38ba70ff69988ad9b7f1f90aa0def3 /actionpack | |
| parent | 066d50bc83469df4fcfcab3b2c4035fdec31a6e9 (diff) | |
| download | rails-fcfca5c70023ab01388a87be49a4a33e29d6cd43.tar.gz rails-fcfca5c70023ab01388a87be49a4a33e29d6cd43.tar.bz2 rails-fcfca5c70023ab01388a87be49a4a33e29d6cd43.zip | |
Reduce object allocations in ActiveSupport::Subscriber
Freezing the string literal reduces the number of objects allocated
during integration test runs.
AllocationTracer before:
```
[["/rack/lib/rack/utils.rb", 499, :T_STRING], [50939, 2737, 78553, 0, 13, 1783920]]
[["/rails/activesupport/lib/active_support/subscriber.rb",
99, :T_STRING], [44959, 0, 42633, 0, 2, 1670800]]
[["/rack/lib/rack/utils.rb", 662, :T_STRING], [32979, 0, 31263, 0, 1, 1226009]]
[["/rack/lib/rack/body_proxy.rb", 34, :T_ARRAY], [29988, 0, 28438, 0, 1, 1114320]]
[["/rails/activesupport/lib/active_support/callbacks.rb", 165, :T_DATA], [29968, 0, 28422, 0, 2, 3675936]]
```
AllocationTracer after:
```
[["/rack/lib/rack/utils.rb", 499, :T_STRING], [50983, 4080, 67269, 0, 12, 1815600]]
[["/rack/lib/rack/utils.rb", 662, :T_STRING], [33001, 0, 28420, 0, 2, 1230809]]
[["/rack/lib/rack/body_proxy.rb", 34, :T_ARRAY], [29990, 0, 25812, 0, 1, 1118000]]
[["/rails/activesupport/lib/active_support/subscriber.rb", 99, :T_STRING], [29986, 0, 25803, 0, 1, 1117840]]
[["/rails/activesupport/lib/active_support/notifications/instrumenter.rb", 52, :T_HASH], [29984, 28, 26133, 0, 11, 4953280]]
Diffstat (limited to 'actionpack')
0 files changed, 0 insertions, 0 deletions