7-Zip LZMA Benchmark

The benchmark shows a rating in MIPS (million instructions per second). The rating value is calculated from the measured speed, and it is normalized with results of Intel Core 2 CPU with multi-threading option switched off. So if you have modern CPU from Intel or AMD, rating values in single-thread mode must be close to real CPU frequency.

Compression speed strongly depends from memory (RAM) latency, Data Cache size/speed and TLB.

Decompression speed strongly depends on CPU integer operations. For example, an Intel Pentium 4 has big branch misprediction penalty (which is effect of long pipeline) and pretty slow multiply and shift operations. So, the Pentium 4 has pretty low decompressing ratings.

The test code doesn't use FPU and SSE.

Compression test in multi-threading mode doesn't use all resources. For example, CPU load can be about 160% instead of 200% in 2-threads mode. But decompression test uses all CPU resource usually.

We use benchmark results for 32 MB dictionary ("25:" line in results). If 32 MB dictionary results are not available, we use the results for smaller dictionary. Most x86 tests were performed on Windows with official 7-Zip binaries. Some tests were performed in 64-bit mode. Most of the tests for other platforms were performed with p7zip compiled by GCC with speed optimization.

You can download binaries and source code of 7-Zip benchmark here:

7-Zip

LZMA SDK

7-Benchmark (Memlat and Pipelen)

If you have new interesting results, write about them on 7-max forum:

7-max forum