大约有 36,000 项符合查询结果（耗时：0.0371秒） [XML]
When should I use a table variable vs temporary table in sql server?
...OM master..spt_values v1, master..spt_values v2
SET STATISTICS TIME ON
/*CPU time = 7016 ms, elapsed time = 7860 ms.*/
UPDATE @T SET Flag=1;
/*CPU time = 6234 ms, elapsed time = 7236 ms.*/
DELETE FROM @T
/* CPU time = 828 ms, elapsed time = 1120 ms.*/
UPDATE #T SET Flag=1;
/*CPU time = 672 m...
Performance optimization strategies of last resort [closed]
...tion process that at the core was a 3-vector dotted with a 3x3 matrix. The CPU had a matrix multiply in hardware that left out some of the cross terms and went real fast compared to all the other ways to do it, but only supported 4x4 matrices and 4-vectors of floats. Changing the code to carry aroun...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...问0x4的内存地址，不crash才怪。于是，你一定会有如下的问题：1）为什么不是 13行if语句出错？f.a被初始化为空了嘛，用空指针访问成员变量为什么不crash？2）为什么会访问到了0x4的地址？靠，4是怎么出来的？3）代码中的第4行...
Controlling fps with requestAnimationFrame?
...actually seems to work in keeping the framerate down and so not cooking my CPU. And it's so simple. Cheers!
– phocks
Sep 1 '17 at 7:09
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Limitations of SQL Server Express
...
There are a number of limitations, notably:
Constrained to a single CPU (in 2012, this limitation has been changed to "The lesser of one socket or four cores", so multi-threading is possible)
1GB RAM (Same in 2008/2012)
4GB database size (raised to 10GB in SQL 2008 R2 and SQL 2012) per databa...
Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
...ced Compile Options...' (at the bottom of the window tab) and then 'Target CPU' (x86)
– Rodolfo
Jun 27 '11 at 15:56
1
...
#pragma pack effect
...alks about some fairly extreme alignment (aligning on 4KB boundaries). The CPU expects certain minimum alignments for various data types, but those require, in the worst case, 8-byte alignment (not counting vector types which may require 16 or 32 byte alignment). Not aligning on those boundaries gen...
Unable to load DLL (Module could not be found HRESULT: 0x8007007E)
...ependencyWalker. It told me that the not all the dependencies had the same CPU type (x86/x64). I copied all the files that had the same CPU type to my application's bin folder, and that resolved the problem.
– DiligentKarma
May 16 '13 at 17:58
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How to tell if browser/tab is active [duplicate]
...b. It serves no purpose if the user isn't looking at it and is potentially CPU-intensive, so I don't want to just waste cycles in the background.
...
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...用 IP：（选填，正常情况下留空即可。如果由于域名解析问题导致 UCenter 与该应用通信失败，请尝试设置为该应用所在服务器的 IP 地址。）
通信密钥：（必填，phpcms 的通信密钥必须与此设置保持一致，否则 phpsso 将无法与 U...