github.com/swiftstack/ProxyFS@v0.0.0-20210203235616-4017c267d62f/inode/benchmark_test.go (about)

     1  // Copyright (c) 2015-2021, NVIDIA CORPORATION.
     2  // SPDX-License-Identifier: Apache-2.0
     3  
     4  package inode
     5  
     6  import (
     7  	"strconv"
     8  	"testing"
     9  
    10  	"github.com/swiftstack/ProxyFS/utils"
    11  )
    12  
    13  func writeBenchmarkHelper(b *testing.B, byteSize uint64) {
    14  	testVolumeHandle, _ := FetchVolumeHandle("TestVolume")
    15  	fileInodeNumber, _ := testVolumeHandle.CreateFile(PosixModePerm, 0, 0)
    16  	buffer := make([]byte, 4096)
    17  	b.ResetTimer()
    18  	for i := 0; i < b.N; i++ {
    19  		testVolumeHandle.Write(fileInodeNumber, 0, buffer, nil)
    20  	}
    21  }
    22  
    23  func Benchmark4KiBWrite(b *testing.B) {
    24  	writeBenchmarkHelper(b, 4*1024)
    25  }
    26  
    27  func Benchmark8KiBWrite(b *testing.B) {
    28  	writeBenchmarkHelper(b, 8*1024)
    29  }
    30  
    31  func Benchmark16KiBWrite(b *testing.B) {
    32  	writeBenchmarkHelper(b, 16*1024)
    33  }
    34  
    35  func Benchmark32KiBWrite(b *testing.B) {
    36  	writeBenchmarkHelper(b, 32*1024)
    37  }
    38  
    39  func Benchmark64KiBWrite(b *testing.B) {
    40  	writeBenchmarkHelper(b, 64*1024)
    41  }
    42  
    43  func readBenchmarkHelper(b *testing.B, byteSize uint64) {
    44  	testVolumeHandle, _ := FetchVolumeHandle("TestVolume")
    45  	fileInodeNumber, _ := testVolumeHandle.CreateFile(PosixModePerm, 0, 0)
    46  	buffer := make([]byte, byteSize)
    47  	testVolumeHandle.Write(fileInodeNumber, 0, buffer, nil)
    48  	b.ResetTimer()
    49  	for i := 0; i < b.N; i++ {
    50  		testVolumeHandle.Read(fileInodeNumber, 0, byteSize, nil)
    51  	}
    52  }
    53  
    54  func BenchmarkRead4KiB(b *testing.B) {
    55  	readBenchmarkHelper(b, 4*1024)
    56  }
    57  
    58  func BenchmarkRead8KiB(b *testing.B) {
    59  	readBenchmarkHelper(b, 8*1024)
    60  }
    61  
    62  func BenchmarkRead16KiB(b *testing.B) {
    63  	readBenchmarkHelper(b, 16*1024)
    64  }
    65  
    66  func BenchmarkRead32KiB(b *testing.B) {
    67  	readBenchmarkHelper(b, 32*1024)
    68  }
    69  
    70  func BenchmarkRead64KiB(b *testing.B) {
    71  	readBenchmarkHelper(b, 64*1024)
    72  }
    73  
    74  func getReadPlanBenchmarkHelper(b *testing.B, byteSize uint64) {
    75  	testVolumeHandle, _ := FetchVolumeHandle("TestVolume")
    76  	fileInodeNumber, _ := testVolumeHandle.CreateFile(PosixModePerm, 0, 0)
    77  	buffer := make([]byte, byteSize)
    78  	testVolumeHandle.Write(fileInodeNumber, 0, buffer, nil)
    79  	var zero uint64
    80  	b.ResetTimer()
    81  	for i := 0; i < b.N; i++ {
    82  		testVolumeHandle.GetReadPlan(fileInodeNumber, &zero, &byteSize)
    83  	}
    84  }
    85  
    86  func BenchmarkGetReadPlan4KiB(b *testing.B) {
    87  	getReadPlanBenchmarkHelper(b, 4*1024)
    88  }
    89  
    90  func BenchmarkGetReadPlan8KiB(b *testing.B) {
    91  	getReadPlanBenchmarkHelper(b, 8*1024)
    92  }
    93  
    94  func BenchmarkGetReadPlan16KiB(b *testing.B) {
    95  	getReadPlanBenchmarkHelper(b, 16*1024)
    96  }
    97  
    98  func BenchmarkGetReadPlan32KiB(b *testing.B) {
    99  	getReadPlanBenchmarkHelper(b, 32*1024)
   100  }
   101  
   102  func BenchmarkGetReadPlan64KiB(b *testing.B) {
   103  	getReadPlanBenchmarkHelper(b, 64*1024)
   104  }
   105  
   106  func readCacheBenchmarkHelper(b *testing.B, byteSize uint64) {
   107  	testVolumeHandle, _ := FetchVolumeHandle("TestVolume")
   108  	fileInodeNumber, _ := testVolumeHandle.CreateFile(PosixModePerm, 0, 0)
   109  	buffer := make([]byte, byteSize)
   110  	testVolumeHandle.Write(fileInodeNumber, 0, buffer, nil)
   111  	testVolumeHandle.Flush(fileInodeNumber, false)
   112  	var zero uint64
   113  	zero = 0
   114  	readPlan, _ := testVolumeHandle.GetReadPlan(fileInodeNumber, &zero, &byteSize)
   115  	testVolumeHandle.Read(fileInodeNumber, 0, byteSize, nil)
   116  	// at this point, the read cache should be populated
   117  
   118  	// let's get the log segment number
   119  	_, _, objectName, _ := utils.PathToAcctContObj(readPlan[0].ObjectPath)
   120  	logSegmentNumber, _ := strconv.ParseUint(objectName, 16, 64)
   121  
   122  	volume := testVolumeHandle.(*volumeStruct)
   123  
   124  	b.ResetTimer()
   125  	for i := 0; i < b.N; i++ {
   126  		buf := []byte{}
   127  		readCacheKey := readCacheKeyStruct{volumeName: "TestVolume", logSegmentNumber: logSegmentNumber, cacheLineTag: 0}
   128  		volume.volumeGroup.Lock()
   129  		readCacheElement, _ := volume.volumeGroup.readCache[readCacheKey]
   130  		cacheLine := readCacheElement.cacheLine
   131  		buf = append(buf, cacheLine[:byteSize]...)
   132  		volume.volumeGroup.Unlock()
   133  	}
   134  }
   135  
   136  func BenchmarkReadCache4KiB(b *testing.B) {
   137  	readCacheBenchmarkHelper(b, 4*1024)
   138  }
   139  
   140  func BenchmarkReadCache8KiB(b *testing.B) {
   141  	readCacheBenchmarkHelper(b, 8*1024)
   142  }
   143  
   144  func BenchmarkReadCache16KiB(b *testing.B) {
   145  	readCacheBenchmarkHelper(b, 16*1024)
   146  }
   147  
   148  func BenchmarkReadCache32KiB(b *testing.B) {
   149  	readCacheBenchmarkHelper(b, 32*1024)
   150  }
   151  
   152  func BenchmarkReadCache64KiB(b *testing.B) {
   153  	readCacheBenchmarkHelper(b, 64*1024)
   154  }