emacs新手,刚抄了一份配置.启动速度有点问题

Emacs-Lisp
1

在init.el一个一个注释掉引用后发现是一个ELPA.EL的问题.这个文件就是配置一下源,加载几个包,新手+编程小白,看不太懂

;;; Code:

;;; settings for package archives
(require 'package)
(setq package-check-signature nil
      load-prefer-newer t)
(setq package-archives '(("gnu"    . "http://mirrors.tuna.tsinghua.edu.cn/elpa/gnu/")
                         ("nongnu" . "http://mirrors.tuna.tsinghua.edu.cn/elpa/nongnu/")
                         ("melpa"  . "http://mirrors.tuna.tsinghua.edu.cn/elpa/melpa/")))

;;; initialize the packages, avoiding a re-initialization
(unless (bound-and-true-p package--initialized) ;; To avoid warnings on 27
  (package-initialize))

(unless package-archive-contents
  (package-refresh-contents))

;; settings for use-package package
(unless (package-installed-p 'use-package)
  (package-refresh-contents)
  (package-install 'use-package))

;; configure use-package prior to loading it
(eval-and-compile
  (setq use-package-always-ensure t
        use-package-always-defer t
        use-package-expand-minimally t)
  (require 'use-package))

(use-package gnu-elpa-keyring-update
	:defer 4)
(use-package diminish
	:defer 4)
(use-package delight
	:defer 4)

(provide 'init-elpa)

这个占用了1秒多.大神看看哪里能修改一下,我用的很轻量的配置,没几个包.都要3秒多

2 
(unless package-archive-contents
  (package-refresh-contents))

这个注释掉看一下

2 个赞
3

M-x use-package-report 能够大体列出各个包的加载时间：

image
image1454×1472 301 KB

如果某个包加载的时间过长，可以考虑优化下。

1 个赞
4

抱歉这几天有事才回复,我试了一下并没什么效果 ::

5 
;;; initialize the packages, avoiding a re-initialization
(unless (bound-and-true-p package--initialized) ;; To avoid warnings on 27
  (package-initialize))

那就是 (package-initialize) 这句花了 1s 多，注释掉试试

6

emacs27+ 不需要package-initialize.

建议还是使用成熟的第三方配置,自己优化工作量很大.

例如我的设置代码考虑了从命令行启动emacs的可能, 还设置package-quickstart 为t, 这些技巧你自己摸索要很长时间,

(defun my-initialize-package ()
  "Package loading optimization.  No need to activate all the packages so early."
  ;; @see https://www.gnu.org/software/emacs/news/NEWS.27.1
  ;; ** Installed packages are now activated *before* loading the init file.
  ;; As a result of this change, it is no longer necessary to call
  ;; `package-initialize' in your init file.

  ;; Previously, a call to `package-initialize' was automatically inserted
  ;; into the init file when Emacs was started.  This call can now safely
  ;; be removed.  Alternatively, if you want to ensure that your init file
  ;; is still compatible with earlier versions of Emacs, change it to:

  ;; However, if your init file changes the values of `package-load-list'
  ;; or `package-user-dir', or sets `package-enable-at-startup' to nil then
  ;; it won't work right without some adjustment:
  ;; - You can move that code to the early init file (see above), so those
  ;;   settings apply before Emacs tries to activate the packages.
  ;; - You can use the new `package-quickstart' so activation of packages
  ;;   does not need to pay attention to `package-load-list' or
  ;;   `package-user-dir' any more.
  ;; "package-quickstart.el" converts path in `load-path' into
  ;; os dependent path, make it impossible to share same emacs.d between
  ;; Windows and Cygwin.
  (unless (or *win64* *cygwin*)
    ;; you need run `M-x package-quickstart-refresh' at least once
    ;; to generate file "package-quickstart.el'.
    ;; It contains the `autoload' statements for all packages.
    (setq package-quickstart t))

  ;; esup need call `package-initialize'
  ;; @see https://github.com/jschaf/esup/issues/84
  (when (or (featurep 'esup-child)
            (fboundp 'profile-dotemacs)
            (daemonp)
            my-lightweight-mode-p
            noninteractive)
    (package-initialize)))

(my-initialize-package)
3 个赞
7

这就学到了😄

8

感谢大神亲自回复,其实我最开始就是用你的配置,无奈英文太差加上刚接触EMACS,想删减一些包都不懂,所以从GitHub找个一个简单的配置,等我在试试不行还是用你的吧

9

删减包没必要。想要添加包参考init-elpa.el。我的包管理策略是默认stable-melpa的包都可以安装。这是强调配置稳定性的结果。懂一点lisp代码的话默认设置都可以改写。实际上没有任何限制。