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# Protocol Buffers Benchmarks
This directory contains benchmarking schemas and data sets that you
can use to test a variety of performance scenarios against your
protobuf language runtime.
## Prerequisite
First, you need to follow the instruction in the root directory's README to
build your language's protobuf, then:
### CPP
You need to install [cmake](https://cmake.org/) before building the benchmark.
We are using [google/benchmark](https://github.com/google/benchmark) as the
benchmark tool for testing cpp. This will be automaticly made during build the
cpp benchmark.
### JAVA
We're using maven to build the java benchmarks, which is the same as to build
the Java protobuf. There're no other tools need to install. We're using
[google/caliper](https://github.com/google/caliper) as benchmark tool, which
can be automaticly included by maven.
### Big data
There's some optional big testing data which is not included in the directory initially, you need to
run the following command to download the testing data:
```
$ ./download_data.sh
```
After doing this the big data file will automaticly generated in the benchmark directory.
## Run instructions
To run all the benchmark dataset:
For java:
```
$ make java
```
For cpp:
```
$ make cpp
```
To run a specific dataset:
For java:
```
$ make java-benchmark
$ ./java-benchmark $(specific generated dataset file name) [-- $(caliper option)]
```
For cpp:
```
$ make cpp-benchmark
$ ./cpp-benchmark $(specific generated dataset file name)
```
## Benchmark datasets
Each data set is in the format of benchmarks.proto:
1. name is the benchmark dataset's name.
2. message_name is the benchmark's message type full name (including package and message name)
3. payload is the list of raw data.
The schema for the datasets is described in `benchmarks.proto`.
Benchmark likely want to run several benchmarks against each data set (parse,
serialize, possibly JSON, possibly using different APIs, etc).
We would like to add more data sets. In general we will favor data sets
that make the overall suite diverse without being too large or having
too many similar tests. Ideally everyone can run through the entire
suite without the test run getting too long.
|
