[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: 32 位系统最多支持 4GB 内存,哪些 bigmem 模块是做什么用的?



On Fri, Jan 01, 2010 at 04:48:12PM +0800, User wrote:
> 
> 
>   如题,Debian 提供了一些带有“bigmem”标识的包,比如
> “aufs-modules-2.6-686-bigmem”等。按照它提供的解释,那种包用于 4--64GB
> 内存的系统。可又说这适合 686 处理器,那明明是 32 位系统呀?哪位大侠懂得
> 其中的缘由,恳请指教。
-------------------------
x86 32 位系统有一个 PAE(Physical Address Extension) 扩展,处理器地址总
线扩展到 36 位,可以将支持的物理内存容量增大到 64GB。

-- 
"I don't know what their
 gripe is.  A critic is
 simply someone paid to
 render opinions glibly."
			     "Critics are grinks and
			      groinks."
		-- Baron and Badger, from Badger comics


Reply to: