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tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...tx-/xps_cpus配置映射关系。
内核优化
由于目前的linux发行版本依然存在很多TCP方面的性能问题， 因此优化内核是比较直接且有效的方式。
但是需要对内核上游源码持续跟踪，关注bug和新特性，需要长期维护， 并且未来新版本...
What is the difference between Google App Engine and Google Compute Engine?
...ween GAE Standard and GAE Flex):
Compute Engine is analogous to a virtual PC, where you'd deploy a small website + database, for instance. You manage everything, including control of installed disk drives. If you deploy a website, you're in charge of setting up DNS etc.
Google App Engine (Standard...
CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术
...说明：
大家很容易的可以看出这是情境（一）的加强版，适用于更广泛的环境。其实情境（一）中也已经做到了把火狐与IE游览器区分开来了，现在我们要做的是把火狐从其它游览器中再次识别出来。大家仔细看下代码，大家...
What should I use Android AccountManager for?
...can access protected material at the same time in their android device and PC without the need for recurrent logins.
From the security point of view, using the same password in every request to the server allows for possible eavesdropping in non-secure connections. Password encryption is not suffici...
Why doesn't c++ have &&= or ||= for booleans?
..._cast<bool*>(&i);
b |= true; // MAY yield 3 (but doesn’t on my PC!)
But since this code results in undefined behaviour anyway, we may safely ignore this potential problem in conforming C++ code.
1 Admittedly this is a rather big caveat as Angew’s comment illustrates:
bool b = tru...
How to add a local repo and treat it as a remote repo
...ocal repo act as a remote with the name bak for another local repo on my PC, using the following:
4 Answers
...
Send email using java
...r for sending mails. There are servers you can install locally on your own pc, or you can use one of the many online servers. One of the more known servers is Google's:
I just successfully tested the allowed Google SMTP configurations using the first example from Simple Java Mail:
final Email ...
List of Delphi language features and version in which they were introduced/deprecated
...een added:
ALIGN_STACK
CPUX86
CPUX64
MACOS (Mac operating system)
MACOS32
PC_MAPPED_EXCEPTIONS
PIC
WIN64
Full unit scope names are now required in your uses clause.
{$ExcessPrecision on/off} compiler directive (x64 only)
The build-in types differ depending on the target platform (32/64-bit)
Ex...
How do cache lines work?
...he largest address below the one you need that is multiple of 64).
Modern PC memory modules transfer 64 bits (8 bytes) at a time, in a burst of eight transfers, so one command triggers a read or write of a full cache line from memory. (DDR1/2/3/4 SDRAM burst transfer size is configurable up to 64B...
base64 encoded images in email signatures
...pBMVF6sYeEpDQIFDdo62
BHwZApjEhjW94RyQTWK/FPx+Ahpg09GdOzoJ/ESx0JaOQ42e2tsiEYpCEFwAGi04
8g6gSgNOovD0gBeVjCPR2BIAkgOrmSNxPo3rbhgHZiMFPnLkBg2BAuQ2XdmlwK1Z
ooZu1sRz6xWlxd4U9GIHwOmdzFgCFKCERYNoeo2BZsPp0KY+A/OAfZDYWKJZLZBo
1mQXdlojvxNYiXrD8I+2uEvTdFJQksID0XjXiUwjJm6CzBVeBQgwBop1ZPpC8RKt
YN5RCpS6XiyMht093o8...