Re: [PATCH 08/11] search: Add stable queries to thread search results

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+       Wed, 09 Oct 2013 11:25:38 -0700 (PDT)\r
+From: Jani Nikula <jani@nikula.org>\r
+To: Austin Clements <amdragon@MIT.EDU>\r
+Subject: Re: [PATCH 08/11] search: Add stable queries to thread search results\r
+In-Reply-To: <20131009143658.GQ21611@mit.edu>\r
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+       <87fvsaao2q.fsf@nikula.org> <20131009143658.GQ21611@mit.edu>\r
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+Date: Wed, 09 Oct 2013 21:25:39 +0300\r
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+On Wed, 09 Oct 2013, Austin Clements <amdragon@MIT.EDU> wrote:\r
+> Quoth Jani Nikula on Oct 09 at  9:41 am:\r
+>> Also one talloc less. Which brings me to the main worry:\r
+>> performance. What's the impact?\r
+>\r
+> Seems to be about 1%-3% for CLI search (tested on the medium corpus).\r
+> It's hard to measure what the effect on Emacs search is, though I\r
+> would expect it to be similarly negligible.\r
+\r
+I can live with that. :)\r
+\r
+> Some work I did several attempts at this ago suggests that this slows\r
+> down tagging (though I doubt it would be noticeable for single\r
+> threads), but I also found that switching to docid-based queries\r
+> significantly sped things up:\r
+> id:CAH-f9WsPj=1Eu=g3sOePJgCTBFs6HrLdLq18xMEnJ8aZ00yCEg@mail.gmail.com\r
+> Actually, docid queries probably make tagging faster than it is *now*,\r
+> but I didn't measure that when I did the experiments.\r
+\r
+Looks like there's a few hurdles in adding that concept\r
+nicely. Something for the future.\r
+\r
+BR,\r
+Jani.\r