Friday, January 23, 2015

LZHAM v1.0 vs. LZMA decompression perf. on iPhone 6+

I borrowed a coworker's iPhone 6+ and reran my bundle compression benchmarking app. According to wikipedia, it's a 1.4 GHz dual-core ARMv8-A.

LZHAM is 2.3x-9x faster on this device, unless the bundle's compressed size is < 1000 bytes. The comp size threshold where LZHAM is faster is lower than what I'm used to seeing, not sure exactly why yet.

1. Bundles sorted by LZHAM vs. LZMA decompression speedup (slowest on left):

2. Bundles sorted by LZMA compressed size (smallest on left), with relative decompression speedup in blue:

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