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perf(lsp): turn off eglot events buffer

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The `eglot-events-buffer-size` setting disables the `eglot-events-buffer`
when 0, enabling more consistent performance on long running emacs
instance.
Default is 2000000 lines. After each new event the events buffer
is pretty printed as a whole, which causes steady performance decrease
over time.
Quite a bit of CPU is spent on pretty priting and Emacs GC is put under
high pressure.
This commit is contained in:
Zdeněk 'Vlk' Mžourek 2023-10-26 20:42:23 +02:00 • committed by Henrik Lissner
parent dc16fe10e3
commit 6bea1f6a35
1 changed files with 7 additions and 1 deletions
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8
modules/tools/lsp/+eglot.el
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@ -16,6 +16,12 @@
(setq eglot-sync-connect 1
eglot-autoshutdown t
eglot-send-changes-idle-time 0.5
;; NOTE This setting disable the eglot-events-buffer enabling more
;; consistent performance on long running emacs instance.
;; Default is 2000000 lines. After each new event the whole buffer
;; is pretty printed which causes steady performance decrease over time.
;; CPU is spent on pretty priting and Emacs GC is put under high pressure.
eglot-events-buffer-size 0
;; NOTE We disable eglot-auto-display-help-buffer because :select t in
;; its popup rule causes eglot to steal focus too often.
eglot-auto-display-help-buffer nil)
@ -32,7 +38,7 @@
:type-definition #'eglot-find-typeDefinition
:documentation #'+eglot-lookup-documentation)
(add-to-list 'doom-debug-variables '(eglot-events-buffer-size . 0))
(add-to-list 'doom-debug-variables '(eglot-events-buffer-size . 2000000))
(defadvice! +lsp--defer-server-shutdown-a (fn &optional server)
"Defer server shutdown for a few seconds.