check here.Basically the compiler will insert unused memory into a structure so that data members are optimally aligned for better performance.
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其他好文 时间:
2014-09-19 05:31:24
阅读次数:
270
OverviewWe can get SegFault by several reasons:aligned access to unaligned memory(usally see in ARM NEON)cross-border accessint temp[2] = {0};temp[2] ...
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系统相关 时间:
2014-09-05 17:57:01
阅读次数:
296
$\Huge a_{1}$\begin{aligned}\dot{x} & = \sigma(y-x) \\\dot{y} & = \rho x - y - xz \\\dot{z} & = -\beta z + xy\end{aligned}$\left( \sum_{k=1}^n a_k b_k...
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Web程序 时间:
2014-08-27 01:36:07
阅读次数:
200
说明:“运行”之后会在原APK所在文件夹生成两个APK,分别为:1.原APK名字_NEW.APK:这是7zip重新进行极限压缩后的新APK文件,默认没有对齐(此APK可删除)2.原APK名字_Aligned.APK:这是对NEW.APK进行对齐后产生的最终APK包文件。(最终发布此APK即可)版本:...
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其他好文 时间:
2014-08-14 13:15:28
阅读次数:
456
进程调度所使用到的数据结构:1.就绪队列内核为每一个cpu创建一个进程就绪队列,该队列上的进程均由该cpu执行,代码如下(kernel/sched/core.c)。1 DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);定义了一个struct rq...
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系统相关 时间:
2014-08-12 00:23:03
阅读次数:
468
Problem Description
A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the fi...
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其他好文 时间:
2014-08-01 09:16:21
阅读次数:
280
1.和软中断相关的数据结构:softing_vec数组(kernel/softirq.c)1 static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;NR_SOFTIRQS值为10,说明内核支持...
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其他好文 时间:
2014-07-30 00:31:52
阅读次数:
568
DescriptionIn the army, a platoon is composed by n soldiers. During the morning inspection, the soldiers are aligned in a straight line in front of th...
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其他好文 时间:
2014-07-27 22:20:09
阅读次数:
254
1.中断描述符表的定义(arch/x86/kernel/traps.c)1 gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;定义的描述符表为一个结构体数组,数组元素类型为gate_desc,大小为8B。NR_VECTORS宏为256,...
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其他好文 时间:
2014-07-27 21:59:49
阅读次数:
445
矩形边界框(转)另一种常见的用来界定物体的几何图元是矩形边界框,矩形边界框可以是与轴对齐的或是任意方向的。轴对齐矩形边界框有一个限制,就是它的边必须垂直于坐标轴。缩写AABB常用来表示axially aligned bounding box(轴对齐矩形边界框),OBBoriented boundin...
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其他好文 时间:
2014-06-22 13:46:17
阅读次数:
271