Commit 9552695d authored by Mathis Rosenhauer's avatar Mathis Rosenhauer

reference performance number from haswell

parent aaf7f627
......@@ -15,9 +15,13 @@ Intel compiler settings
=======================
The Intel compiler can improve performance by vectorizing certain
parts of the code on x86 architectures.
parts of the code on x86 architectures. Assuming your CPU supports
AVX2, the following options will increase encoding speed.
./configure CC=icc
make CFLAGS="-O3 -xCORE-AVX2"
make CFLAGS="-O3 -xCORE-AVX2" bench
This assumes that you have a CPU which supports AVX2.
On a 3.4 GHz E3-1240 v3 we see more than 400 MiB/s for encoding
typical data.
Using other SIMD instruction sets on older CPUs may also help.
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