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Redis 的性能幻想与残酷现实 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...网下大约 1500 bytes），那么对于 10、100、1000 bytes 不同包大小的处理吞吐能力实际结果差不多。关于吞吐量与数据大小的关系可见下面官方网站提供的示意图。
验证
基于我们真实的使用场景，我们搭建了性能验证环境，作了...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... class Programmer : Person
{
private string Language;//编程语言
public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... class Programmer : Person
{
private string Language;//编程语言
public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
...
Disable ALL CAPS menu items in Visual Studio 2013
...icrosoft\VisualStudio\12.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1
(as a single line).
Second Variant: Open up a Command Prompt (win+r, cmd, enter) and enter and run
REG ADD HKCU\Software\Microsoft\VisualStudio\12.0\General /v SuppressUppercaseConversion /t REG_DWORD /d 1
(a...
C#对象序列化与反序列化 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
... class Programmer : Person
{
private string Language;//编程语言
public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
...
memcpy() vs memmove()
...of optimization.
memcpy(str1 + 2, str1, 4);
00241013 mov eax,dword ptr [str1 (243018h)] // load 4 bytes from source string
printf("New string: %s\n", str1);
00241018 push offset str1 (243018h)
0024101D push offset string "New string: %s\n" (242104h)
00241022 mov...
mysql blob大小配置介绍 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...LongBlob，这几个类型之间的唯一区别是在存储文件的最大大小上不同。
MySQL的四种BLOB类型
类型 大小(单位：字节)
TinyBlob 最大 255
Blob 最大 65K
MediumBlob 最大 16M
LongBlob 最大 4G
linux修改etc/my.cnf ...
An error occurred while validating. HRESULT = '8000000A'
...them. If you are still suffering this issue then you can try to change the DWORD value for the following registry value to 0: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0_Config\MSBuild\EnableOutOfProcBuild (VS2013)
or
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\14.0_Config\MSBu...
Turn off Visual Studio Attach security warning when debugging IIS
...oftware\Microsoft\VisualStudio\14.0\Debugger, right-click and create a new DWORD:
Name: DisableAttachSecurityWarning
Value: 1.
Update: If you don't want to open up regedit, save this gist as a *.reg file and run it (imports the keys for all VS versions lower than VS2017).
Visual Studio 2017
...
C# Float expression: strange behavior when casting the result float to int
...stant expression as double.
int speed1 = (int)(6.2f * 10);
mov dword ptr [rbp+8],3Dh //result is precalculated (61)
float tmp = 6.2f * 10;
movss xmm0,dword ptr [000004E8h] //precalculated (float format, xmm0=0x42780000 (62.0))
movss dword ptr [rbp+0Ch],xmm0
in...