Re: [vile] vile eating CPU and then dumping core after pkill

[Thomas Dickey]

On Wed, 24 Nov 2010, Thomas Dickey wrote:

> On Wed, 24 Nov 2010, Gary Jennejohn wrote:
>
> > OK, this may be unreasonable, but here's my story.
> >
> > BTW FreeBSD 9-current.
> >
> > I was editing a file with vile, which per wc -l has 132,096 lines.
> >
> > I moved part way through the file and entered dG; vile would have had
> > to delete about 110,000 lines.
> >
> > It may be unreasonable and I don't know the inner workings of vile, but it
> > seems like dG should just do something like "hey, I know where I am and
> > I know where the end of the buffer is, so I'll just pretend that the
> > buffer ends here now" rather than noodling around for a long time with
> > no apparent effect, other than printing ...working in the status line.
>
> There's two parts -
>
> a) deleting lines with syntax-highlighting turned on is slow
> b) the undo-stack is (not as slow as syntax) a secondary issue.
>
> If I'm thinking ahead, I do ^X-Q to clear the syntax highlighting,
> before doing a large delete which usually makes it simpler.

fwiw, there are commands to clear highlighting above/below the cursor,
as menu-items in xvile.  The latter one might be a useful starting
point for improving deletion-performance (if it's really much faster
to clear, then delete):

C:Editing
B:Apply Highlighting:cmd HighlightFilter
B:Clear Highlighting (above):clear-attributes-til beginning-of-file
B:Clear Highlighting (below):clear-attributes-til goto-char


--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net