关于IP-SAN的瓶颈

今天和板卡厂商谈判定制板卡的事情，我一直在考虑存储和流媒体转发合一的问题，所以问了一下开发存储板卡的问题。

Jack的意见是：太困难，不可能。

王的意见是：磁盘IO才是瓶颈，存储板卡的CPU不会有这个问题。

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而如何让自己的内心产生力量，在于自己而不在于别人。等到一跃而过，回头去看的时候，一个人因此获得了宝贵的经验和自信，下一次就可以面对更宽更深的壕沟。关键在于有多少意愿去面对这种犹豫时刻，因为大部分情况下，我们可以选择绕路的方法而回避这种艰难的选择。

Questions I asked days ago.

> 8. If i use an separate physical server to deploy the database, could I
> gain some performance improvement?  Or the cost of communication between the
> db and the server could hurt the total performance?
 >
could go either way.  With the effects of Python's GIL I'd expect a
multi-core server with database and game server on one box would be fine
until you hit a scaling limit and your server is eating a whole core.  At
 that point you need to develop a distributed application model and probably
use multiple servers.  If you hit that before you're running 200 users
recheck your business model, if you hit it before 20 users recheck your
 architecture.