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MTDL9 / vim-log-highlighting

Syntax highlighting for generic log files in VIM
MIT License
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slow to open log file #8

Closed laoshaw closed 4 years ago

laoshaw commented 5 years ago

with a 1MB log file(7000 lines) it took 1 minute to open, is this normal?

MTDL9 commented 4 years ago

Hi, sorry for the delayed response.

I regularly open log files larger than 1 GB without problem (takes less than a second to open VIM), so it is not normal that it takes 1 minute to open a 1MB file.

A possible cause for the slowness might be some configuration that forces the rendering of the syntax of entire file.

Do you have any directive like this in your .vimrc?

autocmd BufEnter * :syntax sync fromstart

Or a large value of minlines, like this?

syntax sync minlines=10000

Another possible cause might be an issue with some of the Regex rules, triggered by the structure of your file. Can you share a snippet (or the entirety, if you do not have sensitive data inside) of your log file?

MTDL9 commented 4 years ago

There was an issue with the logXmlEntity rule that caused long opening times if the file contained very long words (see #10), this issue might be resolved by the latest commit. Assuming as resolved since no feedback has been received, feel free to comment if you still have the problem and I'll reopen this