Partial backport of 07545bc9e3 for Windows, requires building with `--override USE_MEMORY_MIMALLOC=1 --override USE_DELETED_CHAIN=UNDEF` for optimum effect
For experimentation only - it's disabled by default unless you also specify --override USE_MEMORY_MIMALLOC=1 (I did not see a discernable benefit over glibc, but more experimentation is warranted, especially with older glibc versions)
Windows' malloc has awful performance. mimalloc is orders of magnitude faster, even faster than DeletedBufferChain. Therefore, only enable USE_DELETED_CHAIN on Windows when building without mimalloc.
On Linux, mimalloc doesn't appear to be measurably faster than glibc's own allocator. Both are marginally than DeletedBufferChain, though, and substantially faster in the multi-threaded case, so USE_DELETED_CHAIN is disabled there in all cases.
* New "Flame Graph" chart for seeing all collectors in a frame, much easier to read than piano roll
* Update controls, fonts, background color to more modern visual style on Windows
* Proper support for high DPI monitors (with correct scaling)
* Add tooltips for collector labels showing full name and averaged value
* Colors of collectors are now converted to sRGB transfer encoding
* Major performance improvement to piano roll view on Windows
* Movering mouse over labels now highlights the corresponding area in chart
* Label hover effect changed to darkening effect instead of border
* Reimplement graph as static common control on Windows
* Check boxes are now clickable by their label on Windows
* Graph windows have minimum sizes on Windows
The previous trick doesn't seem to work on one of my devices. The disadvantage of the new solution, however, is that it doesn't capture anything until site.py is successfully executed.
rdb
Stephen A. Imhoff
Daniel