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From: Katsumi Yamaoka <yamaoka@jpl.org>
Subject: Re: how to turn this Gnus function into a macro?
Date: Thu, 08 Jan 2004 15:06:18 +0900	[thread overview]
Message-ID: <b9yr7yb0yat.fsf@jpl.org> (raw)
In-Reply-To: <b9ybrpf2jac.fsf@jpl.org>

>>>>> In <b9ybrpf2jac.fsf@jpl.org> Katsumi Yamaoka wrote:

> BTW, (eval '(MACRO ARG)) can be used, however it is four times
> slower than (MACRO ARG).

Here are benchmarks:

;; The function which Ted posted first.
;; <4noetfo10c.fsf@collins.bwh.harvard.edu>
(byte-compile 'spam-fetch-field-fast)
(benchmark 1000 (spam-fetch-field-fast 51549 'from))
0.001971006393432617
0.0019199848175048828
0.001867055892944336
0.0019189119338989258
0.0018950700759887695

;; The `eval' version.
(defun spam-fetch-field-fast-1 (article field)
  (when (and (numberp article) (symbolp field))
    (eval `(,(intern (concat "mail-header-" (symbol-name field)))
	    ,(gnus-data-header (assoc article (gnus-data-list nil)))))))
(byte-compile 'spam-fetch-field-fast-1)
(benchmark 1000 (spam-fetch-field-fast-1 51549 'from))
0.006534099578857422
0.006331086158752441
0.006301999092102051
0.006219029426574707
0.006276965141296387
-- 
Katsumi Yamaoka <yamaoka@jpl.org>



  parent reply	other threads:[~2004-01-08  6:06 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-07 22:19 Ted Zlatanov
2004-01-07 22:55 ` Jesper Harder
2004-01-08  0:09   ` Ted Zlatanov
2004-01-08  4:13     ` Jesper Harder
2004-01-08  2:13 ` Katsumi Yamaoka
2004-01-08  3:28   ` Ted Zlatanov
2004-01-08  3:33     ` Katsumi Yamaoka
2004-01-08  3:42     ` Jeremy Maitin-Shepard
2004-01-08  3:47       ` Katsumi Yamaoka
2004-01-08  4:06         ` Jeremy Maitin-Shepard
2004-01-08  6:06         ` Katsumi Yamaoka [this message]
2004-01-08 20:30           ` Ted Zlatanov

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