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ORC Performance on Itanium/Linux

ORC Performance on Itanium/Linux. Testing environment: HP i2000 WS: 733 MHz Itanium, 2M L3 Cache, 1G Mem, RH 7.2 Compiled with SPEC base options for Ecc 7.0 and –O3 for Gcc 3.1 Linked with standard libraries on Linux ORC 2.1 on par with ECC 7.0 and 30% ahead of Gcc 3.1.

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ORC Performance on Itanium/Linux

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  1. ORC Performance on Itanium/Linux • Testing environment: • HP i2000 WS: 733 MHz Itanium, 2M L3 Cache, 1G Mem, RH 7.2 • Compiled with SPEC base options for Ecc 7.0 and –O3 for Gcc 3.1 • Linked with standard libraries on Linux • ORC 2.1 on par with ECC 7.0 and 30% ahead of Gcc 3.1

  2. How to get the ORC peak performance? • Options for the three passes of compilation: • 1st pass: "-O3 -fb_create fb.mid -fb_type=1 -fb_phase=0 –ipa -itanium" • For eon: "-O3 -fb_create fb.mid -fb_type=1 -fb_phase=0 -INLINE:none -itanium" • 2nd pass: "-O3 -fb_opt fb.mid -fb_create fb.mid -fb_type=10 -fb_phase=4 –ipa -itanium" • 3rd pass: "-O3 -fb_opt fb.mid –ipa -itanium” • Compilation options specified by SPEC are not listed here. • Additional options may be needed for different configurations.

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