OT: CS education gone wrong (Was: Re: TDD is BS?)

[Dicebot]

On Sunday, 23 June 2013 at 18:24:05 UTC, Andrei Alexandrescu 
wrote:
> On 6/23/13 11:04 AM, Dicebot wrote:
>> On Sunday, 23 June 2013 at 17:54:01 UTC, Andrei Alexandrescu 
>> wrote:
>>> On 6/23/13 10:34 AM, Adam D. Ruppe wrote:
>>> We should do what php does, it was very successful. I assume 
>>> it's a
>>> dynamic library.
>>
>> And what reason behind this other than "millions of lemmings 
>> can't be
>> wrong"? This approach is disaster when it comes to high load.
>
> Would separate processes work better under high load? Educate 
> me.
>
> Andrei

It is not about "process vs dynamic library", it is about basic 
threaded architecture used in Apache. Every single network server 
that I know that cares about performance uses some sort of event 
model and avoids any context switches at all possible costs. It 
does not matter where request processing code is, only how it 
fits in bigger picture.

Actually, server software with most impressive performance I have 
seen so far was implemented as single barebone process with all 
network stack and event library embedded. Slightly similar idea 
was propsoed here - 
http://highscalability.com/blog/2013/5/13/the-secret-to-10-million-concurrent-connections-the-kernel-i.html 
(found via reddit)