Ticket #214 (enhancement)

Opened 10 months ago

Last modified 1 month ago

gr_rotate speedup

Status: closed (fixed)

Reported by: eb Assigned to: eb
Priority: normal Milestone: release-3.1.3
Component: gnuradio-core Version: 3.1svn
Keywords: Cc:

Date: Tue, 11 Dec 2007 16:03:28 -0800 

From: Dan Halperin <dhalperi@cs.washington.edu>
Subject: Re: [Discuss-gnuradio] Re-writing blocks using intel libraries
To: Eugene Grayver <Eugene.Grayver@aero.org>
Cc: discuss-gnuradio@gnu.org

I should mention that gr_rotate's performance can be _greatly improved_
by a simple change that, rather than rescaling the multiplier every
iteration, rescales every k, e.g. k=1000. I think I have an earlier
mailing list post about this. IIRC, the patch didn't go in because there
seemed to be no consensus about what k to use...

Dig out the discussion and patch and apply. Lacking a better idea, use k = 1000.

Change History

12/23/07 14:39:01: Modified by guest

http://www.mail-archive.com/patch-gnuradio@gnu.org/msg00033.html

Note original email + patch has two separate fixes, the second of which needs to be revised. First fix still good I think.

08/23/08 15:27:03: Modified by eb

  • status changed from new to closed.
  • resolution set to fixed.
  • milestone changed from release-3.2 to release-3.1.3.

Fixed in [9384].