Implementing KeyMint performance/benchmark tests.

//

// Copyright (C) 2021 The Android Open Source Project

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

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cc_benchmark {

    name: "VtsAidlKeyMintBenchmarkTest",

    defaults: [

        "VtsHalTargetTestDefaults",

        "use_libaidlvintf_gtest_helper_static",

    ],

    srcs: [

        "KeyMintBenchmark.cpp",

    ],

    shared_libs: [

        "libbinder_ndk",

        "libcrypto",

        "libkeymint",

        "libkeymint_support",

    ],

    static_libs: [

        "android.hardware.security.keymint-V1-ndk_platform",

        "android.hardware.security.secureclock-V1-ndk_platform",

        "libcppbor_external",

        "libchrome",

    ],

}

# KeyMint Benchmark

The KeyMint Benchmark is a standalone tool for measuring the performance of

 KeyMint implementations.

## Building

Build:

`m  VtsAidlKeyMintBenchmarkTest`

Transfer to device/emulator:

`adb sync data`

The benchmark executable will be located at

 `data/benchmarktest/VtsAidlKeyMintBenchmarkTest` on the device.

## Usage

KeyMint Benchmark is built on [Google microbenchmark

library](https://github.com/google/benchmark). All of the commandline arguments

provided by the microbenchmark library are valid, such as

`--benchmark_filter=<regex>` or `benchmark_out_format={json|console|csv}`.

In addition to the command line arguments provided by microbenchmark,

`--service_name=<service_name>` is provided to allow specification of the KeyMint

fully qualified service name, e.g. specify

`--service_name=android.hardware.security.keymint.IKeyMintDevice/default` to

benchmark default implementation of KeyMint.