Using GCC 4.7.0 on an AMD FX-8150 Bulldozer eight-core CPU from an ASUS motherboard running a near final Ubuntu 12.04 LTS x86_64 with the Linux 3.2 kernel. Testing of vanilla GCC 4.7..0 and running some open-source computational tests when using CFLAGS/CXXFLAGS of -O3 and then varying -march= flags. The march= GCC 4.7 options tested for the AMD Bulldozer FX-8150 were k8, k8-sse3, barcelona, btver1, and bdver1 (optimal). Testing for a future article on Phoronix.com by Michael Larabel.
Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1203277-SU-BDVER1TUN05
AMD FX-8150 Bulldozer bdver1 GCC 4.7 Tuning,
"C-Ray 1.1 - Total Time",
Lower Results Are Better
"march=k8",52.76,52.711,52.729
"march=k8-sse3",52.748,52.76,52.755
"march=btver1",47.291,47.28,47.34
"march=barcelona",35.966,35.985,36.043
"march=bdver1",26.947,26.898,26.926
"Himeno Benchmark 3.0 - Poisson Pressure Solver",
Higher Results Are Better
"march=k8",533.181525,524.980408,542.315949
"march=k8-sse3",652.4081,651.247289,650.679102
"march=btver1",661.606911,661.210777,662.470712
"march=barcelona",661.143923,662.092495,663.967723
"march=bdver1",593.878076,601.917663,594.245069
"GraphicsMagick 1.3.12 - Operation: Sharpen",
Higher Results Are Better
"march=k8",64,64,64
"march=k8-sse3",64,64,64
"march=btver1",65,65,65
"march=barcelona",88,88,88
"march=bdver1",102,102,102
"GraphicsMagick 1.3.12 - Operation: Resizing",
Higher Results Are Better
"march=k8",129,130,131
"march=k8-sse3",129,129,130
"march=btver1",130,130,131
"march=barcelona",140,140,140
"march=bdver1",148,148,148
"GraphicsMagick 1.3.12 - Operation: Blur",
Higher Results Are Better
"march=k8",99,99,98
"march=k8-sse3",95,95,94
"march=btver1",98,98,98
"march=barcelona",107,107,106
"march=bdver1",117,117,117