Sida loo isticmaali karaa, waxaa loo isticmaali karaa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Ma ahaatee, waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Shuruudaha dhismaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha. Waayo, wax soo saarka iyo wax soo saarka, oo ka mid ah dhismaha si ay u dhismaha, kharashka, iyo dhismaha. Waxaad ka mid ah ka mid ah codka, laakiin sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale. Live leaderboards waxaa loo yaabaa in ka mid ah macluumaadka: Shuruudaha High-frequency: Markii isticmaalka waxaa laga yaabaa in la soo xiriir. Lock on a global map la soo xiriir in la soo xiriir. Qalabka Top-N ah: Qalabka dhismaha dhismaha oo dhan oo dhan waxaa laga yaabaa. Shuruudaha Muujiyeynta: Leaderboards waxay ka mid ah hundruunada ka mid ah macaamiisha. Shuruudaha caadiga ah: Isticmaalka isticmaalka waa in la soo saarka Top-N si ay u dhigi karaa xawaaraha caadiga ah ee tababarka, sidoo kale si ay u soo saarka updates. Shuruudaha ugu soo saarka ah ee loo soo saarka iyo loo soo saarka waaweyn ee go's primitives iyo data structures. Nala soo xiriir A leaderboard waa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. AddScore(userID string, score int): Isticmaalka ugu fiican ee isticmaalka. Waayo, sidoo kale, waxaan siiso isticmaalka, laakiin sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale. Top(n int): Dhammaan ugu horeysay ee N ugu horeysay. Markaas ka mid ah macluumaadka operational: Qalabka waa in la soo bandhigay competition. Qalabka Top-N waa in la isticmaalaa in la isticmaalaa in la isticmaalaa in la isticmaalaa O (total users log total users). Shuruudaha waa in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan yahay. Qalabka competition Writes High-Frequency: Haddii ay ka mid ah sharding ama dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka dhismaha: Qalabka dhismaha ugu badan oo ku saabsan dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha. Shuruudaha dhismaha ah: Isticmaalka waa in aad u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan tahay si ay u baahan yahay si ay u baahan yahay si ay u baahan yahay. Qalabka Design Ka dib markii aan la soo bandhigay codsiga, waxaan u baahan tahay in ay u baahan tahay sida ay ku habboonayaan dhismaha data si ay u baahan tahay. Sida loo isticmaali karaa Global Mutex type Leaderboard struct { mu sync.RWMutex scores map[string]int } : Simple iyo Easy si aad u aragto. Pros : Scalability dhismaha ah oo ku yaal leh - All updates serialize through one mutex. Cons Shuruudaha isticmaalka: shuruudaha alaabada ah ama shuruudaha kala duwan. Haku sync.Map Haku Waxaa la heli karaa in ka mid ah macluumaad ka mid ah macluumaad ka mid ah macluumaadka: sync.Map var leaderboard sync.Map leaderboard.Store("user123", 100) score, ok := leaderboard.Load("user123") : Pros Shuruudaha ugu horeysay waa in la soo xiriir oo ku saabsan shuruudaha ugu horeysay ee shuruudaha. Writes waa atomic iyo in la isticmaali karo. : Cons Iteration waa mid ka mid ah wax soo saarka. Shuruudaha dhismaha ah ayaa ka caawiyaan. Ma ahaatee, waxaa lagu isticmaali karaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Sharded design kaarka Sida loo isticmaali karaa macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka macluumaadka mac Shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha. Qalabka waxaa laga yaabaa in ka mid ah shards. Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Dhammaan waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Qalabka Top-N per Shard Marka aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay. . Qalabka Min-heap A min-heap waa dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha: Sida loo isticmaali karaa, waxaa loo isticmaali karaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah Taariikhda ugu horeysay waa in la soo bandhigay: Dhamaan shard waxaa ka mid ah dhismaha top-N ah iyo dhismaha top-N ah waxaa loo isticmaali karaa in ka mid ah dhismaha top-N ah. Sharded Leaderboard Implementation Sida loo yaabaa in ay ka mid ah wax soo saarka, waxaa laga yaabaa in ay ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka ah. // leaderboard/leaderboard.go package leaderboard import "sync" // Shard represents a portion of the leaderboard // It maintains a top-N min-heap of high scores type shard struct { mu sync.RWMutex topN *TopNMinHeap } type Leaderboard struct { shards []*shard n int // global top-N size } Shirkadda Heap Marka aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan yahay. Waxaan ka heli karaa dhismaha our ah oo ka mid ah wax soo saarka ah, laakiin sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale. container/heap // leaderboard/topnminheap.go package leaderboard import ( "container/heap" ) // ScoreEntry represents a score and its associated player. type ScoreEntry struct { PlayerID string Score int } // TopNMinHeap is a min-heap that stores the top-N high scores with player IDs. type TopNMinHeap struct { scores []ScoreEntry maxN int } // Len implements heap.Interface func (h TopNMinHeap) Len() int { return len(h.scores) } // Less implements heap.Interface (min-heap) func (h TopNMinHeap) Less(i, j int) bool { return h.scores[i].Score < h.scores[j].Score } // Swap implements heap.Interface func (h TopNMinHeap) Swap(i, j int) { h.scores[i], h.scores[j] = h.scores[j], h.scores[i] } // Push implements heap.Interface func (h *TopNMinHeap) Push(x any) { h.scores = append(h.scores, x.(ScoreEntry)) } // Pop implements heap.Interface func (h *TopNMinHeap) Pop() any { old := h.scores n := len(old) x := old[n-1] h.scores = old[:n-1] return x } // NewTopNMinHeap creates a TopNMinHeap with a specified maximum size. func NewTopNMinHeap(maxN int) *TopNMinHeap { return &TopNMinHeap{ scores: make([]ScoreEntry, 0, maxN), maxN: maxN, } } // Add inserts a new score into the heap, maintaining the top-N property. func (h *TopNMinHeap) Add(playerID string, score int) { entry := ScoreEntry{PlayerID: playerID, Score: score} if h.Len() < h.maxN { heap.Push(h, entry) } else if score > h.scores[0].Score { h.scores[0] = entry heap.Fix(h, 0) } } Waayo, waxaan u baahan tahay in la isticmaali karaa Sida loo helo Haku Haku Haku iyo Sidaa, waxaan ka soo bandhigay constructor. Qalabka dhismaha ugu horeysay.Saaq ka mid ah ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ka mid ah. Haku heap.Interface Len Less Swap Push Pop NewTopNMinHeap Add heap.Fix Shard Operations: Qalabka dhismaha iyo Reads Dhamaan shard waa in la soo bandhigay ka mid ah ka mid ah wax soo saarka cusub oo ka mid ah wax soo saarka top-N. The mutex Qalabka dhismaha ugu horeysay ee shard waxaa laga yaqaan 'shard' iyo 'shard'. mu // leaderboard/leaderboard.go ... // AddScore adds a new score to the shard's top-N heap. func (s *shard) AddScore(playerID string, score int) { s.mu.Lock() defer s.mu.Unlock() s.topN.Add(playerID, score) } // Top returns a snapshot of the top-N scores for this shard. func (s *shard) Top() []ScoreEntry { s.mu.RLock() defer s.mu.RUnlock() // Return a copy to avoid exposing internal slice top := make([]ScoreEntry, len(s.topN.scores)) copy(top, s.topN.scores) return top } Shard waxaa loo isticmaali karaa in ay u isticmaali karaa si ay u isticmaali karaa shard. Qalabka dhismaha ugu horeysay ee loo yaabaa. AddScore Add Shard waa in la soo xiriir si ay u aragto, oo ay ka soo xiriir ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah. Top Haku Waxaad ka soo dejisan in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. RWMutex Qalabka Leaderboard Tani oo cadaadiga waa in la sameeyo, sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale: // leaderboard/leaderboard.go // NewLeaderboard creates a sharded leaderboard with `numShards` shards and global top-N size `n`. func NewLeaderboard(numShards, n int) *Leaderboard { lb := &Leaderboard{ shards: make([]*shard, numShards), n: n, } for i := 0; i < numShards; i++ { lb.shards[i] = &shard{ topN: NewTopNMinHeap(n), } } return lb } Sida loo isticmaali karaa a Marka aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay. Leaderboard Qalabka Score Sida loo isticmaali karaa shard-ka, waxaa loo isticmaali karaa shard-ka FNV-1a ee playerID si ay u isticmaali karaa shard-ka, oo loo isticmaali karaa shard-ka ah oo ay u isticmaali karaa shard-ka. // leaderboard/leaderboard.go import "hash/fnv" ... // getShard returns the shard for a given playerID. func (lb *Leaderboard) getShard(playerID string) *shard { h := fnv.New32a() h.Write([]byte(playerID)) idx := int(h.Sum32()) % len(lb.shards) return lb.shards[idx] } Haku Sidaa waxaa laga yaabaa in la isticmaali karaa Sidee waxaa laga yaabaa in la soo saarka leaderboard: getShard AddScore // leaderboard/leaderboard.go // AddScore adds a new score to the appropriate shard. func (lb *Leaderboard) AddScore(playerID string, score int) { s := lb.getShard(playerID) s.AddScore(playerID, score) } Haku Sida loo isticmaali karaa, waxaa loo isticmaali karaa shard. Qalabka dhismaha iyo dhismaha iyo dhismaha dhismaha iyo dhismaha iyo dhismaha. AddScore getShard shard.AddScore Qalabka Global Top-N Marka aad u baahan yahay in ay u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay in aad u baahan yahay. // leaderboard/leaderboard.go // Top returns the global top-N across all shards. func (lb *Leaderboard) Top() []ScoreEntry { // Temporary heap to compute global top-N globalHeap := NewTopNMinHeap(lb.n) for _, s := range lb.shards { shardTop := s.Top() // thread-safe snapshot for _, entry := range shardTop { globalHeap.Add(entry.PlayerID, entry.Score) } } // Copy to slice top := make([]ScoreEntry, len(globalHeap.scores)) copy(top, globalHeap.scores) // Sort descending (highest score first) for i, j := 0, len(top)-1; i < j; i, j = i+1, j-1 { top[i], top[j] = top[j], top[i] } return top } Dhamaan shard wuxuu ku yaalaa sharka ah ee top-N-ka, sidaas waxaan ku yaalaa sharka ah in ka mid ah shard-N-ka ah. Waxaan ku salaysan oo dhan shard-n-ka ah ee shard-n-ka ah in ka mid ah mid ka mid ah n-ka ah in ay ku caawinayaa top-N-ka ah. Sidaas min-heap ku salaysan mid ka mid ah mid ka mid ah N-ka ugu badan oo ka mid ah, waxaan ka mid ah shard-n-ka intaa in ay ka mid ah mid ka mid ah ka mid ah. Waayo, waxaan u baabuurta. Sida loo yaabaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah: // main.go package main import ( "fmt" "math/rand" "sync" "time" "./leaderboard" ) func main() { const ( numShards = 8 topN = 10 numPlayers = 50 numUpdates = 200 updateDelay = 10 * time.Millisecond ) lb := leaderboard.NewLeaderboard(numShards, topN) var wg sync.WaitGroup // Spawn concurrent score updates for i := 0; i < numPlayers; i++ { wg.Add(1) playerID := fmt.Sprintf("player%02d", i) go func(pid string) { defer wg.Done() for j := 0; j < numUpdates; j++ { score := rand.Intn(50000) lb.AddScore(pid, score) time.Sleep(updateDelay) } }(playerID) } // Spawn a goroutine to print live top-N periodically done := make(chan struct{}) go func() { ticker := time.NewTicker(100 * time.Millisecond) defer ticker.Stop() for { select { case <-ticker.C: top := lb.Top() fmt.Println("Top Scores:") for i, entry := range top { fmt.Printf("%2d: %s = %d\n", i+1, entry.PlayerID, entry.Score) } fmt.Println("-----") case <-done: return } } }() // Wait for all updates to finish wg.Wait() close(done) // Print final top-N fmt.Println("Final Top Scores:") top := lb.Top() for i, entry := range top { fmt.Printf("%2d: %s = %d\n", i+1, entry.PlayerID, entry.Score) } } Sida loo yaqaan 'Goroutine' waa mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ka mid ah. Ma rabtaa in aad u isticmaali karaa program , wax soo saarka waa mid ka mid ah this: go run main.go Top Scores: 1: player05 = 49830 2: player07 = 49873 3: player46 = 49966 4: player24 = 49800 5: player25 = 49961 6: player10 = 49802 7: player30 = 49812 8: player02 = 49726 9: player19 = 49750 10: player46 = 49718 ----- ... ----- Final Top Scores: 1: player10 = 49971 2: player45 = 49977 3: player00 = 49992 4: player40 = 49979 5: player29 = 49990 6: player19 = 49967 7: player46 = 49966 8: player18 = 49974 9: player25 = 49961 10: player39 = 49960 Qalabka Sida loo yaabaa, waxaa loo yaabaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah. Waayo, sidoo kale waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. Dhismaha ah oo ka mid ah mutex global: dhismaha caadiga ah, laakiin dhismaha caadiga ah. sync.Map: waxaa laga yaabaa in la xiriira, laakiin waxaa laga yaabaa in la xiriira in ka mid ah queries top-N. Sharded leaderboard with per-shard top-N min-heaps: our ka mid ah, soo saarka, wax soo saarka, iyo caadiga ah. Waxaan u baahan tahay: Shard-level structures oo ku saabsan read-write locks. Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Global top-N waa in la soo saarka in ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka iyo wax soo saarka. A demo / test harness ilustrating updates live, warshadaha korontada, iyo snapshots leaderboard kala duwan. Qalabka Qalabka: Sharding waxay ka caawinayaa wax soo saarka. goroutines kala duwan waa in la soo saarka wax soo saarka oo ka mid ah wax soo saarka. Min-heap oo ku yaalaa top-N si fiican. Only the most relevant scores are stored, keeping operations O(log N). Shirkadda dhismaha ugu horeysay ee Global waxaa loo isticmaali karaa. By combining per-shard heaps, we avoid sorting the entire dataset andining fast queries. Marka aad u baahan tahay macluumaad ah oo ka mid ah macluumaad ka mid ah macluumaad iyo macluumaad. Shirkadda ugu badan oo ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Sida loo isticmaali karaa, sidoo kale waxaa loo isticmaali karaa si ay u isticmaali karaa: Dynamic top-N per shard ama multi-level leaderboards. Integraasyada iyo shuruudaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha. Qalabka ugu badan oo ku saabsan timestamps, rankings, or achievements. Sida loo yaabaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah. Code for this article is available on GitHub: gkoos/article-leaderboard. Haku/Articles-leaderboard
