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llvm-project/libc/benchmarks/configuration_small.json

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[llvm-libc] Add memory function benchmarks Summary: This patch adds a benchmarking infrastructure for llvm-libc memory functions. In a nutshell, the code can benchmark small and large buffers for the memcpy, memset and memcmp functions. It also produces graphs of size vs latency by running targets of the form `render-libc-{memcpy|memset|memcmp}-benchmark-{small|big}`. The configurations are provided as JSON files and the benchmark also produces a JSON file. This file is then parsed and rendered as a PNG file via the `render.py` script (make sure to run `pip3 install matplotlib scipy numpy`). The script can take several JSON files as input and will superimpose the curves if they are from the same host. TODO: - The code benchmarks whatever is available on the host but should be configured to benchmark the -to be added- llvm-libc memory functions. - Add a README file with instructions and rationale. - Produce scores to track the performance of the functions over time to allow for regression detection. Reviewers: sivachandra, ckennelly Subscribers: mgorny, MaskRay, libc-commits Tags: #libc-project Differential Revision: https://reviews.llvm.org/D72516
2020-01-06 20:17:04 +08:00
{
"Options":{
"MinDuration":0.001,
"MaxDuration":1,
"InitialIterations":100,
"MaxIterations":10000000,
"MinSamples":4,
"MaxSamples":1000,
"Epsilon":0.01,
"ScalingFactor":1.4
},
"Configuration":{
"Runs":10,
"BufferSize":8192,
"Size":{
"From":0,
"To":1024,
"Step":1
},
"AddressAlignment":1,
"MemsetValue":0,
"MemcmpMismatchAt":0
}
}