Indent very slow (original) (raw)

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Expected behavior

Fast

Actual behavior

Slow

Steps to reproduce the problem

Indent about a 1000 lines with little nesting.

After using the profiler, I determined that I can set clojure-use-backtracking-indent to nil and get a nice speedup of about 90%. I don't know what it does ("When non-nil, enable context sensitive indentation."??) - Still its too slow and takes more than a second. My machine is not the fastest, but 2 Ghz should suffice to indent a few pages of text in less than a second in a text editor.

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Environment & Version information

clojure-mode version

5.13.0
Include here the version string displayed by M-x clojure-mode-display-version. Here's an example:

clojure-mode (version 5.2.0)

Emacs version

E.g. 24.5 (use C-h C-a to see it)
26.3

Operating system

E.g. Windows 10