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About XnviewMP Performance

Posted: Tue Apr 30, 2013 7:58 pm
by lckxf
Does XnviewMP(x64) support multi-thread processing of the PNGs ? My PC system is Windows 7 Home Premium SP1 x64.
I have a large number of PNGs (more than 100,000).When browsing these photos, especially the high resolution ones,I got no more than 50% usage with my two-core CPU.
So even the XnviewMP(x64) support x64 system , doesn't it support multi-thread processing of the PNGs yet ?

Re: About XnviewMP Performance

Posted: Wed May 01, 2013 1:06 pm
by xnview
When XnView create thumbnails?

Re: About XnviewMP Performance

Posted: Wed May 01, 2013 5:33 pm
by lckxf
xnview wrote:When XnView create thumbnails?
No,when viewing the pictures.
What I want to know is if PNG decoding uses only one core of the Multi-core CPU.
When viewing large size JPG ,usage of the CPU can go up to 97%. But PNG never. Though the decoding is ongoing.

Re: About XnviewMP Performance

Posted: Thu May 02, 2013 9:13 am
by xnview
for decoding only 1 core is used

Re: About XnviewMP Performance

Posted: Thu May 02, 2013 10:40 am
by lckxf
xnview wrote:for decoding only 1 core is used
OK,I've also done some test with ACDSee X64 ,it seemed that ACDSee X64 also work with one core when decoding the PNGs . But XnvieMP x64 is faster .
So, will PNG decoding support multi-thread ?
If not , maybe I should convert all my PNGs to BMPs . :(

Re: About XnviewMP Performance

Posted: Thu May 02, 2013 11:28 am
by xnview
lckxf wrote:So, will PNG decoding support multi-thread ?
If not , maybe I should convert all my PNGs to BMPs . :(
i don't think (for any format)