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My elisp program is horribly slow. Is there an easy way to find out where it spends time?

April 26, 2017easy elisp horribly program slow spends time

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My elisp program is horribly slow. Is there an easy way to find out where it spends time?

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Hrvoje Niksic writes: Under XEmacs 20.4 and later you can use M-x profile-key-sequence, press a key (say RET in the Gnus Group buffer), and get the results using M-x profile-results. It should give you an idea of where the time is being spent.