forked from enlightenment/efl
Marcel Hollerbach
93a701d065
with this commit a new way of allocating vtables arrived. The old mechnism was to allocate a table big enough to carry *all* functions at once, in order to not allocate that much memory for functions that are not implemented on a specific klass, dichchains have been used, which can be seens as a 2D matrix, where columns are only allocated if min 1 entry needs to be written, this may have been a good way to allocate back in the day when all this with eo started, however, it showed to not pay off. With this new way, we allocate a array of arrays. the first lvl array is carrying enough slots, that *all* up to the time defined interfaces/classes/abstracts/mixins can be implemented. The second lvl array then has exactly the size of the defined APIs. The second lvl array is obviously only allocated if needed. When comparing the two methods, i messured two things, the usage based on memory allocation for vtable-way-1 and vtable-way-2. Additionally, i checked the overall memory usage of elementary_test using pmap. The first messurement is a little bit more exact. The second messurement is more biased, but captures the whole picture. Memory allocation tracking: vtable-way-1 - vtable-way-2 = 74680 Byte Pmap memory tracking: vtable-way1 - vtable-way-2 = 217088 Byte The second messurement shows a bigger impact, likely because this is also showing off all the sideeffects that we are taking place due to fewer allocations. Differential Revision: https://phab.enlightenment.org/D11535 |
||
|---|---|---|
| .. | ||
| ecore | ||
| ecore_audio_cxx | ||
| ecore_con | ||
| ecore_cxx | ||
| ecore_wl2 | ||
| ector | ||
| edje | ||
| edje_cxx | ||
| eet | ||
| eet_cxx | ||
| eeze | ||
| efl | ||
| efl_js | ||
| efl_mono | ||
| efreet | ||
| eina | ||
| eina_cxx | ||
| eio | ||
| eldbus | ||
| eldbus_cxx | ||
| elementary | ||
| elementary_cxx | ||
| elput | ||
| elua | ||
| emile | ||
| emotion | ||
| eo | ||
| eo_cxx | ||
| eolian | ||
| eolian_cxx | ||
| eolian_js | ||
| evas | ||
| evas_cxx | ||
| evil | ||
| .gitignore | ||
| efl_check.h | ||
| meson.build | ||
| timeout.c | ||