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22 Subject: Displaying tags with many messages very slow in Emacs
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24 From: webservice@bontempi.net
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26 Date: Mon, 31 Oct 2011 12:44:31 +0100
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33 List-Id: "Use and development of the notmuch mail system."
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46 I am planning to have some tags with more than 10k messages, and I am =
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47 experiencing very slow list display in emacs.
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49 Installation on OS X 10.6, using brew: notmuch 0.9, chert database =
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50 format. Emacs 24.0.90.1 on iMac, intel 2.8 Ghz i7, 8Gb ram.
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52 Testing 'notmuch new' on a Maildir folder with about 30000 messages =
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53 (about one fourth of my archive).
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55 At beginning notmuch was indexing about 200 msgs/sec. The more it =
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56 indexed, the slower it became. After about 20000 msgs it slowed down to =
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57 70 msgs/sec. I am not sure if that is a behaviour due to Xapian.
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59 Anyway, after initial indexing, starting notmuch from emacs, I have:
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61 "Welcome to notmuch. You have 34,366 messages."
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63 Once I start browsing the inbox (34,208), Emacs displays the initial =
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64 screenful, but the whole list takes quite a while to load, about 2 =
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65 minutes. After that time, in the status bar I see "Top of 2M".
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67 That happens every time I am browsing the inbox, in order to assign =
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70 The real issue, though, is that scrolling down the list has a noticeable =
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71 delay, enough to make it basically unusable.
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73 Is there something I do not know that I should do to improve that speed =
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74 (either from within Emacs, or in notmuch config file?
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76 I would be very grateful for any advice or pointer on how to speed up =
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77 the notmuch experience.
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