首次提交：初始化项目代码

atomic_stress_test_demo.go

@@ -0,0 +1,47 @@
+// bulma/atomic_stress_test_demo.go
+package main
+
+import (
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"time"
+)
+
+func main() {
+	var counter atomic.Uint64
+	var wg sync.WaitGroup
+
+	// 压力测试配置：10000个goroutine，每个累加1000次，总计1亿次操作
+	goroutineNum := 10000
+	perGoroutineOps := 1000
+	wg.Add(goroutineNum)
+
+	start := time.Now()
+	for i := 0; i < goroutineNum; i++ {
+		go func() {
+			defer wg.Done()
+			for j := 0; j < perGoroutineOps; j++ {
+				counter.Add(1) // 默认使用OrderSeqCst，安全稳定
+			}
+		}()
+	}
+
+	wg.Wait()
+	cost := time.Since(start)
+	expected := uint64(goroutineNum * perGoroutineOps)
+	actual := counter.Load()
+
+	// 验证结果：判断实际计数与预期计数是否一致，验证原子操作稳定性
+	fmt.Printf("压力测试完成：%d个goroutine，每个执行%d次累加\n", goroutineNum, perGoroutineOps)
+	fmt.Printf("预期计数: %d\n", expected)
+	fmt.Printf("实际计数: %d\n", actual)
+	fmt.Printf("执行耗时: %v\n", cost)
+	fmt.Printf("操作吞吐量: %.2f万次/毫秒\n", float64(expected)/float64(cost.Milliseconds()))
+
+	if actual == expected {
+		fmt.Println("原子操作稳定可靠，无数据竞争！")
+	} else {
+		fmt.Printf("原子操作异常，计数偏差: %d\n", expected-actual)
+	}
+}