何となく
M-x elp-instrument-package w3
M-x elp-instrument-package url
M-x elp-results

Function Name                                     Call Count  Elapsed Time  Average Time
================================================  ==========  ============  ============
url-http-generic-filter                           4           4.382205      1.09555125
url-http-content-length-after-change-function     2           4.3800089999  2.1900044999
url-http-activate-callback                        3           4.365386      1.4551286666
w3-fetch-callback                                 1           4.365188      4.365188
w3-prepare-buffer                                 1           4.360032      4.360032
w3-draw-tree                                      1           4.339833      4.339833
w3-display-node                                   1           4.181542      4.181542
w3-fetch                                          2           3.685283      1.8426415
w3-read-url-with-default                          1           3.660147      3.660147
w3-make-face                                      131         0.2125259999  0.0016223358
w3-make-face-emacs19                              131         0.209611      0.0016000839
w3-resurrect-images                               1           0.155556      0.155556
w3-maybe-start-image-download                     1           0.154895      0.154895

error in process filter: set-face-attribute: Invalid face height: -40

なかなか面白いしくみだ。 僕も 登録する かなぁ。 以下登録中に Server error !

4766510968
4990111508
4274064115

どうもこの最初の二つがあると Server error ? (amazon に未登録の場合かな) きょうは (33/2)冊まで。