Changes between Version 15 and Version 16 of jazz/Performance_Tuning

Timestamp:

May 24, 2010, 2:19:01 AM (14 years ago)

Author:

jazz

Comment:

--

jazz/Performance_Tuning

@@ -115 +115 @@
  * [wiki:jazz/10-03-31 2010-03-31] : 高 IOWait 有什麼好的解決之道呢??
 
+ * [http://www.scriptbits.net/2009/07/how-to-identify-what-processes-are-generating-io-wait-load/ How to identify what processes are generating IO Wait load?]
+{{{
+Jun run "pidstat -d 5" and it will print the list of processes doing IO over the last 5 seconds.
+}}}
+
+ * [http://ubuntuforums.org/showthread.php?t=1382161  Re: Major problems: High Iowait. Change filesystem from etx4 to xfs/ext3/jfs?]
+{{{
+vm.dirty_writeback_centisecs=100
+vm.dirty_expire_centisecs=100"
+}}}
+
+ * [http://ubuntuforums.org/showthread.php?t=200004 iowait problem] - 顯示了使用 vmstat , iostat , hdparm 的技巧
+
 == Network Performance Tuning ==