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Linux 进程卡住了怎么办? - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...很多常用的调试工具,比如 strace, pstack 等也都失灵了,怎么回事? 此时,我们使用 ps 查看进程列表,可以看到卡住的进程状态显示为 D。 man ps 中描述 D 状态 Uninterruptible Sleep。 Linux 进程有两种睡眠状态: Interrupt...
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Programmatically get the cache line size?

... On x86, you can use the CPUID instruction with function 2 to determine various properties of the cache and the TLB. Parsing the output of function 2 is somewhat complicated, so I'll refer you to section 3.1.3 of the Intel Proces...
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Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine

... I had the same issue. I changed the application configuration to x86, then it worked! – s.k.paul Jul 18 '13 at 4:31 9 ...
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Signed versus Unsigned Integers

... GregGreg 286k5151 gold badges350350 silver badges324324 bronze badges ...
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为什么我们程序员写不出好代码? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...复数进行统计,并且作用一种衡量标准。他们认为,统计一种衡量,而衡量肯定有好处的。 然后他们根据此标准为开发者的工作能力进行排名。开发者犹如网络游戏中的玩家,他们将更加关心自己的排名,而不如何让代...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

...13f3: (106) Invalid instruction 0x00dd printf crashes. "O_O" gcc 4.4@x86_64-suse-linux We like to think that: ..05 int has the size of pointers but 'sizeof(int)==sizeof(void*)' is false. ..08 overshifting is okay but '(1<<bits_per_int)==0' is false. ..09a minus shifts backwards but '(t=-...
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How to ALTER multiple columns at once in SQL Server

...NONCLUSTERED ( Diary_ID ) WITH( PAD_INDEX = OFF, FILLFACTOR = 86, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON T3_Data_2 GO CREATE UNIQUE CLUSTERED INDEX tblDiary_ID ON dbo.tblDiary ( Diary_ID ) WITH( PAD_INDEX = OFF, F...
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...了22,80,25端口. 如果你在安装linux时没有选择启动防火墙,这样的 [root@tp ~]# iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destinati...
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可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术

...变量以外不依赖于任何环境(包括static),这样的函数就purecode(纯代码)可重入,可以允许有该函数的多个副本在运行,由于它们使用的分离的栈,所以不会互相干扰。一、可重入(reentrance)函数: 首先来看下APUE中,列出...
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解决:CTreeCtrl控件SetCheck无效的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...SetCheck / GetCheck来设置和获取指定 节点的选择状态。 但奇怪的,在对话框中按照常规的方法使用了SetCheck,最后CTreeCtrl并没有显示节点被选 中,下面测试例子: 1、用wizard创建一个对话框工程,并且在上面放置一个CTr...