It would be good to know what happens in Emacs during those 88
seconds. Please try using "M-x profiler" to find out.
Here's what I get with `M-x profiler-start`, using the default cpu sampling,
`C-y` the character into a scratch buffer, wait for the character to show up,
`M-x profiler-stop`, and start `M-x profiler-report`:
- command-execute 34 68%
- call-interactively 34 68%
- byte-code 27 54%
- read-extended-command 27 54%
- completing-read 27 54%
- completing-read-default 27 54%
- read-from-minibuffer 20 40%
- redisplay_internal (C function) 3 6%
- tool-bar-make-keymap 1 2%
- tool-bar-make-keymap-1 1 2%
- mapcar 1 2%
- #<compiled 0x3e964ab88a0e574> 1 2%
- eval 1 2%
- find-image 1 2%
image-search-load-path 1 2%
- mode-line-default-help-echo 1 2%
window-at-side-p 1 2%
- funcall 1 2%
- #<compiled -0x1f995e3cc2b2ecb1> 1 2%
- gui-backend-selection-exists-p 1 2%
- apply 1 2%
#<compiled 0x6140be5b29e66b5> 1 2%
- command-execute 1 2%
- call-interactively 1 2%
- funcall-interactively 1 2%
self-insert-command 1 2%
- funcall-interactively 7 14%
- execute-extended-command 7 14%
- sit-for 6 12%
- redisplay 5 10%
- redisplay_internal (C function) 1 2%
- tool-bar-make-keymap 1 2%
- tool-bar-make-keymap-1 1 2%
- mapcar 1 2%
- #<compiled 0x3e964ab88a0e574> 1 2%
- eval 1 2%
- find-image 1 2%
image-search-load-path 1 2%
- command-execute 1 2%
- call-interactively 1 2%
- funcall-interactively 1 2%
profiler-stop 1 2%
- ... 15 30%
Automatic GC 11 22%
- minibuffer-complete 4 8%
- completion-in-region 4 8%
- completion--in-region 4 8%
- #<compiled -0x1e2ae9bfb330a9ab> 4 8%
- apply 4 8%
- #<compiled -0x1803b12e396f20ff> 4 8%
- completion--in-region-1 4 8%
- completion--do-completion 4 8%
- completion-try-completion 2 4%
- completion--nth-completion 2 4%
- completion--some 2 4%
- #<compiled 0x19362eb0698d1781> 2 4%
- completion-basic-try-completion 2 4%
- try-completion 2 4%
- #<compiled 0x8eea649a66594a4> 2 4%
complete-with-action 2 4%
- minibuffer-completion-help 2 4%
- completion-all-completions 1 2%
- completion--nth-completion 1 2%
- completion--some 1 2%
- #<compiled 0x19362eb0508d1781> 1 2%
- completion-basic-all-completions 1 2%
- completion-pcm--all-completions 1 2%
- all-completions 1 2%
- #<compiled 0x8eea649a66594a4> 1 2%
complete-with-action 1 2%
- temp-buffer-window-show 1 2%
- display-buffer 1 2%
- display-buffer-at-bottom 1 2%
- window--display-buffer 1 2%
- #<compiled -0x142698e7aac52b3a> 1 2%
- display-completion-list 1 2%
- completion--insert-strings 1 2%
- mapcar 1 2%
#<compiled -0x6d88f6ac78df9> 1 2%
- timer-event-handler 1 2%
- apply 1 2%
#<compiled 0x2393a4a91a526d> 1 2%