Hi, 2017/12/20 Wed 3:24:50 UTC+9 David Kotchan wrote: > On Thursday, December 14, 2017 at 11:51:45 PM UTC-8, Ken Takata wrote: > > > > > Maybe we should check step by step. > > > > At first, I'd like to confirm again that the patch 1369 is actually the > > cause of the slowdown. > > Could you checkout 'v8.0.1368' and check if the slowdown doesn't occur? > > > > Ken, you are right, and once again I have been stupid/sloppy. My Win10 > Enterprise Vim was actually much older than 1366: it was patch 1206. I am not > sure how I got "1366" stuck in my head (probably confusion with the Vim > version I use at home on Win10 Professional). > > OK. So now, I have done a detailed bisect of exactly which patch started > causing the issue. It is: patch 1343 "MS-Windows: does not show colored > emojis". Patch 1342 is quite fast, as usual. Patch 1343 is where Vim becomes > slow. > > Sorry for the misleading information from earlier :-( Hopefully, the firm > knowledge that the problem started occurring at patch 1343 (commit > d7ccc4d81dbcfa3ac0352bacea6e294fc9e33fda) will shed some light on the matter.
Ah, okay. One of my desktop PC at work also becomes slow after 8.0.1343, when executing such as `:ver`, `:dig`, `:hi` and some other commands. (However, scrolling a text by keep pressing Ctrl-F or Ctrl-B becomes faster on that machine.) I found that gui_mch_flush() was very slow on that machine. It took more than 3 ms on it, however it took about 1 ms on another note PC. So, the desktop PC is 3x slower. Moreover, when the window size of Vim becomes larger, it becomes slower. I think the most important thing for improving the performance is reducing the call of gui_mch_flush(). I have updated the 'optimize-directx' branch in the 'vim-jp/vim' repository. It becomes slightly faster than the latest patch (8.0.1418), but it is still slower than 8.0.1342 on the desktop PC. (The branch is much faster than 1342 on other PCs.) I think it is very hard to make it faster than this. It might be an issue of the display driver. Regards, Ken Takata -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
