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why the speed of 10bit/pixel image decoding is slower than encoding   Message List  
Reply | Forward Message #5797 of 5971 |
Recently,I test the speed of KAKADU6.1R to encode/decode 10 bit/pixel image on
HP BL460c G6 platforms.

Computer Configure:
hardware platform: BL460c G6, Dual Quad-Core Xeon(E5540 2.53GHz),total 8-core;
software platform: Microsoft service 2008

test image: Gray,10bit/pixel, Sprecision=10,Sdims={2048,2048}
Stiles={1024,1024}, W9x7, Clevels=4, Cblk={64,64},num_threads=8, rate=1bpp

the encode time is 0.2452s,but the decode time is 0.4068s.

I surprise that why the speed of decoding is slower than encoding by using
KAKADU6.1R to code 10bit/pixel input image and choosing num_threads is 8. Whould
you like to give me some advise to improve the decoding speed?





Thu Jul 2, 2009 2:48 am

bbsong1980
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Message #5797 of 5971 |
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Recently,I test the speed of KAKADU6.1R to encode/decode 10 bit/pixel image on HP BL460c G6 platforms. Computer Configure: hardware platform: BL460c G6, Dual...
bbsong1980
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Jul 2, 2009
8:43 pm

Maybe your problem is that the decompress time includes writing the file to disk -- file writing is often slower than file reading. Cheers, David...
David Taubman
taubman_ds
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Jul 3, 2009
2:29 am
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