Changes between Version 4 and Version 5 of jazz/11-04-13

Timestamp:

Apr 14, 2011, 5:35:53 PM (14 years ago)

Author:

jazz

Comment:

--

jazz/11-04-13

@@ -52 +52 @@
 virtual memory          (kbytes, -v) 524288
 }}}
- * <2> 把 /etc/apache2/apache2.conf 改成只使用 prefork 模組，並且降低 KeepAlive 的時間，還有降低預設開啟的 apache process 數量。
+ * <2> 把 /etc/apache2/apache2.conf 改成只使用 prefork 模組，並且降低 !KeepAliveTimeout 的時間(15秒降低到2秒)，還有降低預設開啟的 apache process 數量。
 {{{
 #!diff
@@ -143 +143 @@
  User ${APACHE_RUN_USER}
 }}}
+ * <參考> [http://bobcares.com/blog/?p=71 Configuring Apache for Maximum Performance]
+ * <參考> [http://www.devside.net/articles/apache-performance-tuning Apache Performance Tuning]
+{{{
+prefork [default MPM for Apache 2.0 and 1.3]:
+
+    * Apache 1.3-based.
+    * Multiple processes, 1 thread per process, processes handle requests.
+    * Used for security and stability.
+    * Has higher memory consumption and lower performance over the newer Apache 2.0-based threaded MPMs.
+worker:
+
+    * Apache 2.0-based.
+    * Multiple processes, many threads per process, threads handle requests.
+    * Used for lower memory consumption and higher performance.
+    * Does not provide the same level of isolation request-to-request, as a process-based MPM does.
+}}}
+{{{
+MaxClients ≈ (RAM - size_all_other_processes)/(size_apache_process)
+}}}