github.com/metaworking/channeld@v0.7.3/pkg/channeld/subscription_test.go (about)

     1  package channeld
     2  
     3  import (
     4  	"math/rand"
     5  	"sync"
     6  	"testing"
     7  
     8  	"github.com/metaworking/channeld/pkg/channeldpb"
     9  	"github.com/metaworking/channeld/pkg/common"
    10  	"github.com/stretchr/testify/assert"
    11  	"go.uber.org/zap"
    12  )
    13  
    14  func init() {
    15  	InitLogs()
    16  	InitChannels()
    17  }
    18  
    19  func TestSubscribeToChannel(t *testing.T) {
    20  	c1 := addTestConnection(channeldpb.ConnectionType_SERVER)
    21  
    22  	assert.NotNil(t, globalChannel)
    23  	// Can't create the GLOBAL channel
    24  	_, err := CreateChannel(channeldpb.ChannelType_GLOBAL, nil)
    25  	assert.Error(t, err)
    26  	// By default, the GLOBAL channel has no owner
    27  	assert.True(t, !globalChannel.HasOwner())
    28  
    29  	globalChannel.SetOwner(c1)
    30  	shouldSend := false
    31  	_, shouldSend = c1.SubscribeToChannel(globalChannel, nil)
    32  	assert.Contains(t, globalChannel.subscribedConnections, c1)
    33  	assert.True(t, shouldSend)
    34  
    35  	// Subscribe again
    36  	_, shouldSend = c1.SubscribeToChannel(globalChannel, nil)
    37  	assert.Contains(t, globalChannel.subscribedConnections, c1)
    38  	assert.False(t, shouldSend)
    39  
    40  	// Subscribe with different DataAccess
    41  	_, shouldSend = c1.SubscribeToChannel(globalChannel, &channeldpb.ChannelSubscriptionOptions{
    42  		DataAccess: Pointer(channeldpb.ChannelDataAccess_WRITE_ACCESS),
    43  	})
    44  	assert.True(t, shouldSend)
    45  }
    46  
    47  func randomChannelId(maxChId int) common.ChannelId {
    48  	// [0, 999]
    49  	chId := rand.Intn(maxChId) //time.Now().Nanosecond() % (maxChId - 1)
    50  	// [1, 1000]
    51  	return common.ChannelId(chId + 1)
    52  }
    53  
    54  func BenchmarkHandoverEntitySub(b *testing.B) {
    55  	// Disable logging
    56  	SetLogLevel(zap.FatalLevel)
    57  
    58  	CONN_NUM := 1000
    59  	ENTITY_CHANNEL_NUM := 1000
    60  	SPATIAL_CHANNEL_NUM := 15 * 15
    61  	CONN_PER_GRID := CONN_NUM / SPATIAL_CHANNEL_NUM
    62  
    63  	conns := make([]*Connection, CONN_NUM)
    64  	for i := 0; i < CONN_NUM; i++ {
    65  		conns[i] = addTestConnection(channeldpb.ConnectionType_CLIENT) //&Connection{id: ConnectionId(i), connectionType: channeldpb.ConnectionType_CLIENT}
    66  
    67  	}
    68  
    69  	for i := 0; i < ENTITY_CHANNEL_NUM; i++ {
    70  		CreateChannel(channeldpb.ChannelType_ENTITY, conns[i])
    71  	}
    72  
    73  	b.ResetTimer()
    74  
    75  	for i := 0; i < b.N; i++ {
    76  		for _, conn := range conns {
    77  			// Every client subscribes to 3 spatial channels and unsubscribes from 3 spatial channels
    78  			for nSub := 0; nSub < 3*CONN_PER_GRID; nSub++ {
    79  				conn.SubscribeToChannel(GetChannel(randomChannelId(ENTITY_CHANNEL_NUM)), nil)
    80  			}
    81  			for nUnsub := 0; nUnsub < 3*CONN_PER_GRID; nUnsub++ {
    82  				conn.UnsubscribeFromChannel(GetChannel(randomChannelId(ENTITY_CHANNEL_NUM)))
    83  			}
    84  		}
    85  	}
    86  }
    87  
    88  /*
    89  Result:
    90  BenchmarkHandoverEntitySub-20    	      81	  12666246 ns/op	 7495425 B/op	  100522 allocs/op
    91  1000 clients handing over at the same time takes 13ms - Acceptable
    92  7.5MB / 100K allocs - A bit too much
    93  */
    94  
    95  func BenchmarkHandoverEntitySubAsync(b *testing.B) {
    96  	// Disable logging
    97  	SetLogLevel(zap.FatalLevel)
    98  
    99  	CONN_NUM := 1000
   100  	ENTITY_CHANNEL_NUM := 1000
   101  	SPATIAL_CHANNEL_NUM := 15 * 15
   102  	CONN_PER_GRID := CONN_NUM / SPATIAL_CHANNEL_NUM
   103  
   104  	conns := make([]*Connection, CONN_NUM)
   105  	for i := 0; i < CONN_NUM; i++ {
   106  		conns[i] = addTestConnection(channeldpb.ConnectionType_CLIENT) //&Connection{id: ConnectionId(i), connectionType: channeldpb.ConnectionType_CLIENT}
   107  
   108  	}
   109  
   110  	for i := 0; i < ENTITY_CHANNEL_NUM; i++ {
   111  		CreateChannel(channeldpb.ChannelType_ENTITY, conns[i])
   112  	}
   113  
   114  	b.ResetTimer()
   115  
   116  	for i := 0; i < b.N; i++ {
   117  		wg := sync.WaitGroup{}
   118  		for s := 0; s < SPATIAL_CHANNEL_NUM; s++ {
   119  			gridIndex := s
   120  			wg.Add(1)
   121  			go func() {
   122  				for nConn := 0; nConn < CONN_PER_GRID; nConn++ {
   123  					conn := conns[gridIndex*CONN_PER_GRID+nConn]
   124  					// Every client subscribes to 3 spatial channels and unsubscribes from 3 spatial channels
   125  					for nSub := 0; nSub < 3*CONN_PER_GRID; nSub++ {
   126  						conn.SubscribeToChannel(GetChannel(randomChannelId(ENTITY_CHANNEL_NUM)), nil)
   127  					}
   128  					for nUnsub := 0; nUnsub < 3*CONN_PER_GRID; nUnsub++ {
   129  						conn.UnsubscribeFromChannel(GetChannel(randomChannelId(ENTITY_CHANNEL_NUM)))
   130  					}
   131  				}
   132  				wg.Done()
   133  			}()
   134  		}
   135  		wg.Wait()
   136  	}
   137  }
   138  
   139  /*
   140  // Result:
   141  BenchmarkHandoverEntitySubAsync-20    	     147	   9056136 ns/op	 5960059 B/op	   82705 allocs/op
   142  1000 clients handing over at the same time takes 9ms - Acceptable
   143  6MB / 82K allocs - A bit too much
   144  */