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From: | Marcus D. Leech |
Subject: | Re: [Discuss-gnuradio] inefficient large vectors |
Date: | Wed, 21 Aug 2013 15:46:33 -0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
The aligned-to-page-size buffer management is due to the way that mmap() is used to mutliply-map these buffers into the address space.Yes, this is what I am doing, but it is not very nice, and you cannot easily mix in blocks that want to work at the stream level. What really bugs me that I think the scheduler could figure all out, and treat my vectors as a stream, allocate nice buffers (who cares if the vector fits in the buffer in an integer multiple times). Am I wrong with this? I think this would be a nice further development... Miklos
That only "works" if the sizes are multiples of the native page size. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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