# Consider some heap optimizations
**URL:** https://discourse.cmake.org/t/consider-some-heap-optimizations/1761
**Category:** Development
**Created:** [August 30, 2020, 8:34pm UTC](https://discourse.cmake.org/t/consider-some-heap-optimizations/1761 "2020-08-30T20:34:27Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@OleksandrKvl](https://discourse.cmake.org/u/OleksandrKvl)
#### Post date: [August 30, 2020, 8:34pm UTC](https://discourse.cmake.org/t/consider-some-heap-optimizations/1761/1 "2020-08-30T20:34:27Z")
Hi, I’ve made some heap optimizations, details are here: [Reducing CMake heap usage with Heaptrack](https://oleksandrkvl.github.io/2020/08/30/reducing-cmake-heap-usage.html).
TL;DR: I changed `cmListFunction` to be a `std::shared_ptr` and did a couple of another little changes, you can find them all in this [branch history](https://github.com/OleksandrKvl/CMake/commits/optimized/Source). It was mostly small research and heaptrack test for me so I’ll understand if such optimizations wouldn’t be considered significant enough.
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### Author:  [@brad.king](https://discourse.cmake.org/u/brad.king)
#### Post date: [August 31, 2020, 2:02pm UTC](https://discourse.cmake.org/t/consider-some-heap-optimizations/1761/2 "2020-08-31T14:02:10Z")
Cc: @marc.chevrier @ben.boeckel
@OleksandrKvl thanks! We do occasionally do memory profiling optimizations and it has been a while since the last time, so such improvements would certainly be welcome! Please see [CONTRIBUTING.rst](https://gitlab.kitware.com/cmake/cmake/-/blob/master/CONTRIBUTING.rst) for contribution instructions. We can review the details in a merge request.
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### Author:  [@OleksandrKvl](https://discourse.cmake.org/u/OleksandrKvl)
#### Post date: [August 31, 2020, 6:49pm UTC](https://discourse.cmake.org/t/consider-some-heap-optimizations/1761/3 "2020-08-31T18:49:31Z")
Ok, I’ll prepare a merge request)
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### Author:  [@OleksandrKvl](https://discourse.cmake.org/u/OleksandrKvl)
#### Post date: [September 2, 2020, 11:18am UTC](https://discourse.cmake.org/t/consider-some-heap-optimizations/1761/4 "2020-09-02T11:18:55Z")
Here it is [https://gitlab.kitware.com/cmake/cmake/-/merge\_requests/5178](https://gitlab.kitware.com/cmake/cmake/-/merge_requests/5178)