Ramel Eshed wrote:
> Running the following script in the gui (:terminal job.sh) takes more
> than 10 seconds. During that time the screen in not updated and vim is
> not responsive. Doing the same in terminal-vim is much faster, but the
> screen is updated only when the job is finished.
>
> running this script using job_start(), for comparison, is very fast
> and seamless:
> call job_start(['/bin/sh', '-c', 'job.sh'], {'out_io': 'buffer', 'out_buf':
> 1})
>
> $ cat job.sh
> #!/bin/bash
> for i in `seq 1 20000`;
> do
> echo "$i"
> done
>
> I'm running the latest Vim (1161) on Ubuntu.
Using job_start() is always going to be faster, since with a terminal
window everything goes through the virtual terminal. That's quite a bit
of overhead. Partly because it supports colors and other attributes.
There is a todo item to make screen updating for the terminal more
efficient, not sure how much it helps in this case, it's mostly to skip
redrawing lines that didn't change.
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