AN720 データシートの表示（PDF） - Silicon Laboratories

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PRECISION32 OPTIMIZATIONCONSIDERATIONS FOR CODESIZE ANDSPEED

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AN720

Table 9. Precision32 Toolchain Optimization Comparison—CoreMark Debug Speed

Library

newlib semihosting -O0

newlib semihosting -O1

newlib semihosting -O2

newlib semihosting -O3

newlib semihosting -Os

redlib nohosting -O0

redlib nohosting -O1

redlib nohosting -O2

redlib nohosting -O3

redlib nohosting -Os

CoreMark Score

CoreMark 1.0 : 36.478654 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 79.807436 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 107.984518 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 103.509985 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 87.64509 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 37.571643 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 79.998784 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 107.984518 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 103.509985 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

CoreMark 1.0 : 87.64509 / GCC4.6.2 20110921 (release) [ARM/embedded-4_6-

branch revision 182083] Iterations=3000 / STACK

Rev. 0.1

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