[KimDaBa] Reducing memory consumption
Robert L Krawitz
rlk at alum.mit.edu
Sun Jan 16 09:44:28 CET 2005
From: Eivind <ekj at vestdata.no>
Date: Sun, 16 Jan 2005 10:57:25 +0100
On Saturday 15 January 2005 06:36, Robert L Krawitz wrote:
> MB -> 170 MB). However, it still seems like 80 MB is a bit high for
> the image in question, which is somewhere in the range of 5500x3500
> pixels (18 million pixels). Perhaps there's some way of reducing it
It ain't nessecarily that high. I'm am not quite sure what the
current KDE-libraries do, but atleast more and more image-handling
libraries internally use 4-byte pro pixel in order to store not
only RGB info, but also an alpha-channel. Doing so is required for
example to handle png-images properly.
4*18 million is 72 million, it's atleast in the same ballpark as
the memory-consumption you are seeing.
True. So it's particularly critical to avoid unnecessary deep copies.
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