I'm using gvim, as I have for many years, for long-lived editing sessions. I recently upgraded to ubuntu 17.04 which brought along an upgrade to Vim 8.0.
I have noticed that gvim gets slower and slower with use, and it doesn't seem to require very much use for it to be, in my opinion, unusably slow. I am not sure that I have discovered the cause of this, because reproducing it is not trivial. What I have discovered is that if I open my .vimrc (about 400 lines) and just hold down j, if the font is set to `Terminus 14` I the redrawing of the screen is noticeably slower than other fonts I've tried (Inconsolata, Bitstream Monotype.)
Here is my full version information:
VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Mar 17 2017 12:13:35)
Included patches: 1-95
Modified by pkg-vim-maintainers@lists.alioth.debian.org
Compiled by pkg-vim-maintainers@lists.alioth.debian.org
Huge version with GTK3 GUI. Features included (+) or not (-):
+acl +file_in_path +mouse_sgr +tag_old_static
+arabic +find_in_path -mouse_sysmouse -tag_any_white
+autocmd +float +mouse_urxvt +tcl
+balloon_eval +folding +mouse_xterm +termguicolors
+browse -footer +multi_byte +terminfo
++builtin_terms +fork() +multi_lang +termresponse
+byte_offset +gettext -mzscheme +textobjects
+channel -hangul_input +netbeans_intg +timers
+cindent +iconv +num64 +title
+clientserver +insert_expand +packages +toolbar
+clipboard +job +path_extra +user_commands
+cmdline_compl +jumplist +perl +vertsplit
+cmdline_hist +keymap +persistent_undo +virtualedit
+cmdline_info +lambda +postscript +visual
+comments +langmap +printer +visualextra
+conceal +libcall +profile +viminfo
+cryptv +linebreak -python +vreplace
+cscope +lispindent +python3 +wildignore
+cursorbind +listcmds +quickfix +wildmenu
+cursorshape +localmap +reltime +windows
+dialog_con_gui +lua +rightleft +writebackup
+diff +menu +ruby +X11
+digraphs +mksession +scrollbind -xfontset
+dnd +modify_fname +signs +xim
-ebcdic +mouse +smartindent +xpm
+emacs_tags +mouseshape +startuptime +xsmp_interact
+eval +mouse_dec +statusline +xterm_clipboard
+ex_extra +mouse_gpm -sun_workshop -xterm_save
+extra_search -mouse_jsbterm +syntax
+farsi +mouse_netterm +tag_binary
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "~/.vim/vimrc"
user exrc file: "$HOME/.exrc"
system gvimrc file: "$VIM/gvimrc"
user gvimrc file: "$HOME/.gvimrc"
2nd user gvimrc file: "~/.vim/gvimrc"
defaults file: "$VIMRUNTIME/defaults.vim"
system menu file: "$VIMRUNTIME/menu.vim"
fall-back for $VIM: "/usr/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -pthread -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0 -I/usr/include/gio-unix-2.0/ -I/usr/include/mirclient -I/usr/include/mircore -I/usr/include/mircookie -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -Wdate-time -g -O2 -fdebug-prefix-map=/build/vim-8krYYf/vim-8.0.0095=. -fPIE -fstack-protector-strong -Wformat -Werror=format-security -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,-E -Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now -Wl,--as-needed -o vim -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lSM -lICE -lXpm -lXt -lX11 -lXdmcp -lSM -lICE -lm -ltinfo -lnsl -lselinux -lacl -lattr -lgpm -ldl -L/usr/lib -llua5.2 -Wl,-E -fstack-protector-strong -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu/perl/5.24/CORE -lperl -ldl -lm -lpthread -lcrypt -L/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu -lpython3.5m -lpthread -ldl -lutil -lm -L/usr/lib/x86_64-linux-gnu -ltcl8.6 -ldl -lz -lpthread -lieee -lm -lruby-2.3 -lpthread -lgmp -ldl -lcrypt -lm
Here are plugins I use:
* https://github.com/frioux/dotfiles/tree/master/vim/bundle-lua
* https://github.com/frioux/dotfiles/tree/master/vim/bundle-python
* https://github.com/frioux/dotfiles/tree/master/vim/bundle
Here is my .vimrc: https://github.com/frioux/dotfiles/blob/master/vimrc
I have basically replaced the references to Terminus with Inconsolata as a workaround for this, but I figured that there may be something worth fixing here as well.
Let me know.
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