Opened 8 years ago
Last modified 6 years ago
#3180 new enhancement
Make rendering of points faster by avoding memory allocation
| Reported by: | wenzeslaus | Owned by: | |
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| Priority: | minor | Milestone: | 7.6.2 |
| Component: | Display | Version: | svn-trunk |
| Keywords: | d.vect, d.graph, d.labels, points, symbols, speed, rendering, memory | Cc: | |
| CPU: | Unspecified | Platform: | Unspecified |
Description
Rendering of large number of points (symbols) takes a long time. The rendering function symbol() (backend for D_symbol() and D_symbol2()) in symbol.c (Programming manual) calls G_malloc(). I didn't do any profiling, but according to my experience, G_malloc()/G_free() called hundreds of times will negatively influence the performance. It would be nice if we can avoid that allocation and perhaps even the following for loop.
Change History (5)
comment:1 by , 7 years ago
| Milestone: | 7.4.0 → 7.4.1 |
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comment:2 by , 7 years ago
| Milestone: | 7.4.1 → 7.4.2 |
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comment:3 by , 6 years ago
| Milestone: | 7.4.2 → 7.6.0 |
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All enhancement tickets should be assigned to 7.6 milestone.
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