ARM 64-Bit Assembly Language by William Ughetta & Larry D. Pyeatt

Author:William Ughetta & Larry D. Pyeatt [William Ughetta]
Language: eng
Format: epub
Publisher: Newnes
Published: 2019-11-26T16:00:00+00:00

The testing program was executed on an nVidia Jetson TX-1 using the C version of and then with the assembly version. This was done for chunk sizes of 32 bits and 64 bits. The results are shown in Table 7.1. The total time required for the negate function tests using the 32-bit C version was 0.097846 seconds. The 32-bit assembly version ran in 0.049903 seconds, for a speedup of 1.96, which means that the assembly version was almost twice as fast as the C version. The 64-bit C version ran in 0.095243 seconds, while the 64-bit assembly code ran in 0.048488 seconds, which gives a 1.96 speedup. Note that the assembly version with a 64-bit chunk size is more than twice as fast as the C version using 32-bit chunks.

Table 7.1

Performance of implementations on an nVidia Jetson TX-1.

ChunkVersionNegateProgram

TimeSpeedupTimeSpeedup

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