This installer examines what you have installed on your machine, and only downloads the servicing downloads necessary to update them to SP1.
该安装包检查你已经在机器上安装的产品，只下载必需的升级包来使其升级到SP1。
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A slow machine is a slow machine, and I've seen fast machines with well-written queries fail under load because mysqld was consumed with busy-work instead of servicing queries.
The most powerful tool for servicing Eclipse plug-in code is the Eclipse debugger's ability to debug a customer's workbench, even when that customer's workbench is running on a remote machine.