From 60dee8d6d44af535900725f494435b1d609f9796 Mon Sep 17 00:00:00 2001
From: jay817 <jaewooklee.dev@gmail.com>
Date: Sun, 16 Feb 2025 04:21:55 +0000
Subject: [PATCH] Add parallel/README.md

---
 parallel/README.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 parallel/README.md

diff --git a/parallel/README.md b/parallel/README.md
new file mode 100644
index 0000000..660596c
--- /dev/null
+++ b/parallel/README.md
@@ -0,0 +1,13 @@
+```python
+def worker(x):
+    __import__('time').sleep(1)
+    print(x, end=' ')
+    return x ** 3
+
+with __import__('concurrent').futures.ThreadPoolExecutor(64) as T:
+    y = list(T.map(worker, range(100)))
+# 64개 worker로 100개의 1초 소요되는 작업: 2초후 종료
+
+# x는 순서대로 호출 안되지만 y는 순서대로 나옴
+print(y)
+```
\ No newline at end of file