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The compiler does a good job of deduplicating strings already, but we can eliminate the pointers to each string by combining the strings into a single char array and storing only an index into that array. The longest of the char arrays is the descriptions array, which is a little over 45 KiB, so still under MSVC's 64 KiB string literal limit [0]. Because the string length is under 64 KiB we can use uint16_t as the index type, which roughly doubles our savings as compared to an int. This cuts 77 KiB from iris_dri.so (0.5%) and libvulkan_intel.so (0.9%). text data bss dec hex filename 926811 25920 0 952731 e899b meson-generated_.._intel_perf_metrics.c.o (before) 924401 0 0 924401 e1af1 meson-generated_.._intel_perf_metrics.c.o (after) text data bss dec hex filename 14190852 391628 210004 14792484 e1b724 iris_dri.so (before) 14137732 365708 210004 14713444 e08264 iris_dri.so (after) text data bss dec hex filename 8184097 240184 22820 8447101 80e47d libvulkan_intel.so (before) 8131009 214264 22820 8368093 7fafdd libvulkan_intel.so (after) relinfo: iris_dri.so (before): 17765 relocations, 17545 relative (98%), 452 PLT entries, 1 for local syms (0%), 0 users iris_dri.so (after) : 15605 relocations, 15385 relative (98%), 452 PLT entries, 1 for local syms (0%), 0 users libvulkan_intel.so (before): 10720 relocations, 6989 relative (65%), 355 PLT entries, 1 for local syms (0%), 0 users libvulkan_intel.so (after) : 8560 relocations, 4829 relative (56%), 355 PLT entries, 1 for local syms (0%), 0 users [0] https://docs.microsoft.com/en-us/cpp/cpp/string-and-character-literals-cpp?view=msvc-170&viewFallbackFrom=vs-2019 Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15237> |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.