= 2011-04-04 =

== VMWare Server : IOWait Performance Tuning ==

 * 因為經常遇到 IOWait 的問題，所以找一下別人是怎麼解決的。
 * <參考> [http://mrpointy.wordpress.com/2008/02/14/gutsy-and-vmware-server-youre-in-for-some-pain/ Gutsy and Vmware-Server – you’re in for some pain]
 * 首先修改 /etc/vmware/config
{{{
--- /etc/vmware/config.bak	2011-04-04 22:21:13.000000000 +0800
+++ /etc/vmware/config	2011-04-06 10:20:42.000000000 +0800
@@ -22,4 +22,7 @@
 product.name = "VMware Server"
 # Beginning of the block added by the VMware VIX software
 vix.libdir = "/usr/lib/vmware-vix/lib"
+# 11-04-04: Enhance performance - by Jazz
+prefvmx.useRecommendedLockedMemSize = "TRUE"
+prefvmx.minVmMemPct = "100"
 # End of the block added by the VMware VIX software
}}}
 * 其次修改經常發生 IOWait 的虛擬機器 vmx 設定檔
{{{
#!diff
--- Trac_Pool.vmx.bak	2011-04-06 10:24:17.000000000 +0800
+++ Trac_Pool.vmx	2011-04-04 23:26:34.000000000 +0800
@@ -49,3 +49,8 @@
 debugStub.linuxOffsets = "0x0,0xffffffff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0"
 
 extendedConfigFile = "Trac_Pool.vmxf"
+
+sched.mem.pshare.enable = "FALSE"
+mainMem.useNamedFile = "FALSE"
+MemTrimRate = "0"
+MemAllowAutoScaleDown = "FALSE"
}}}