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The InstanceData type in the rendering subsystem was previously 16 floats which occupied a total of 64 bytes per instance. This meant that for every character or background cell drawn, 64 bytes were sent to the GPU. In the case of a 400x100 cell grid, a total of 2.5MB would be sent. This patch reduces InstanceData's size to 26 bytes, a 60% improvement! Using the above example for comparison, a worst case of 1MB would be transferred. The motivation for this patch comes from macOS. Once the terminal grid would reach a certain size, performance experienced a sharp and dramatic drop (render times would go from ~3ms to ~16ms). I don't want to speculate too much on the underlying issue, but suffice it to say that this patch alleviates the problem in my testing. |
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| .. | ||
| renderer | ||
| term | ||
| ansi.rs | ||
| cli.rs | ||
| config.rs | ||
| display.rs | ||
| event.rs | ||
| event_loop.rs | ||
| grid.rs | ||
| index.rs | ||
| input.rs | ||
| lib.rs | ||
| logging.rs | ||
| macros.rs | ||
| main.rs | ||
| meter.rs | ||
| selection.rs | ||
| sync.rs | ||
| tty.rs | ||
| util.rs | ||
| window.rs | ||