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+To: notmuch@notmuchmail.org\r
+From: John Steele Scott <toojays@toojays.net>\r
+Subject: Re: slow rendering of some HTML mail threads in emacs/notmuch due\r
+ to shr.\r
+Date: Sat, 20 Apr 2013 12:49:53 +0930\r
+Lines: 40\r
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+\r
+On 20/04/13 12:29, John Steele Scott wrote:\r
+> I've been enjoying using notmuch in emacs to handle my email, but some threads take aaaages to render. I'm talking three minutes for a thread with 15 messages. I'm not sure what it is in particular about this thread. Some combination of Outlook generated HTML and much repeated top-posting perhaps. I have observed similar slowness for threads of HTML mails produced by the ReviewBoard code review system.\r
+> \r
+> For this particular Outlook thread, I used elp-instrument package to instrument shr before showing the thread. The most time was spent in these functions:\r
+> \r
+> shr-descend 11783 196.09731454 0.0166423928\r
+> shr-generic 11681 190.86248305 0.0163395670\r
+> shr-tag-blockquote 81 57.140909005 0.7054433210\r
+> shr-tag-div 348 48.511533571 0.1394009585\r
+> shr-insert-document 14 27.808360994 1.9863114995\r
+> shr-tag-body 14 27.158463401 1.9398902429\r
+> shr-tag-p 4121 23.766379281 0.0057671388\r
+> shr-insert 8962 21.705253155 0.0024219206\r
+> shr-colorize-region 1075 2.6348254729 0.0024510004\r
+> shr-put-color 2135 2.4779991750 0.0011606553\r
+> shr-indent 13246 1.5816357290 0.0001194047\r
+> shr-expand-newlines 1075 1.4488115139 0.0013477316\r
+> shr-find-fill-point 5281 0.9872837309 0.0001869501\r
+> shr-tag-br 4162 0.9527550159 0.0002289175\r
+> shr-transform-dom 11123 0.6487086020 5.832...e-05\r
+> shr-remove-trailing-whitespace 14 0.5503726889 0.0393123349\r
+> shr-ensure-paragraph 8412 0.5039738979 5.991...e-05\r
+> shr-buffer-width 1075 0.4900505680 0.0004558609\r
+> shr-tag-b 381 0.17374644 0.0004560274\r
+> shr-fontize-cont 381 0.172155226 0.0004518509\r
+> shr-tag-table 8 0.154814786 0.0193518482\r
+\r
+I should have mentioned, I'm using:\r
+GNU Emacs 24.3.1 built from bzr://bzr.savannah.gnu.org/emacs/emacs-24/ revno: 111336\r
+notmuch 0.14+142~g2bd922f\r
+\r
+> If I change mm-text-html-renderer to gnus-w3m instead of shr, notmuch-show renders this thread in the region of 3-7s, which still feels quite slow, but is an immense improvement. Setting it to lynx gives rendering times in the 2-3s ballpark, but it doesn't do bold/italic formatting, and some characters such are being rendered as escape sequences (e.g. \91 shows up as \342\200\230). So I'll probably stick with gnus-w3m to get (barely) tolerable performance with decent rendering.\r
+> \r
+> Just putting this out there to maybe help the next person who gets annoyed by this slowness.\r
+> \r
+> Cheers,\r
+> \r
+> John\r
+> \r
+\r
+\r
projects / notmuch-archives.git / commitdiff