How should I update multiple windows on one graphics card?
• A: It is advisable to minimize switching between different contexts. If the draw operation is not CPU-bound, the windows should be updated sequentially. If the draw operation is CPU-bound, the CPU-intensive part should be pipelined with the draw thread (see Section 2) while still updating the windows sequentially from the draw thread. If that is not feasible, updating the windows from multiple threads might be faster on a multicore machine.
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