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Utilizing multi core for tar+gzip/bzip compression/decompression
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There is effectively no CPU time spent tarring, so it wouldn't help much. The tar format is just a copy of the input file with header blocks in between files.
– Mark Adler
Apr 23 '15 at 5:23
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ViewPager with Google Maps API v2: mysterious black view
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Here's what I'm using to bypass the issue - Ensures you don't waste any CPU cycles on devices >= 4.1
public class FixMapFragment extends SupportMapFragment {
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
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MongoDB: Is it possible to make a case-insensitive query?
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Even with small datasets, it's not very efficient. You take a far bigger cpu hit than your query warrants, which could become an issue if you are trying to achieve scale.
As an alternative, you can store an uppercase copy and search against that. For instance, I have a User table that has a user...
How can I produce an effect similar to the iOS 7 blur view?
...6 toolchain with iOS8, and it works great. I tried to implement using the CPU, but works noticeably slower than this method.
– Jon
Mar 9 '15 at 22:55
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Write applications in C or C++ for Android? [closed]
...s list. Google envisage android running on a variety of different devices (CPUs, displays, etc). The best way to enable development is therefore to use (portable) managed code that targets the Dalvik VM. For this reason, the Android SDK doesn't support C/C++.
BUT, take a look at this page:
Andr...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...运行效果如下图：
（PS：不知道大家有没有碰到过这个问题,MENUINFO结构未定义，解决的方法是进入文件选项卡（FileView),在Source File文件下的StdAfx.cpp文件里的最前面部分添加这个语句：#define WINVER 0x0501）
设计弹出式菜单
CMen...
Reading Excel files from C#
...t 64-bit compatible; you will need to switch to target x86 rather than Any CPU (if you still want to go ahead with this method). Alternatively install the 64-bit ACE driver and change the conn string to use this driver (as indicated by Andreas) - microsoft.com/en-us/download/…
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What is difference between monolithic and micro kernel?
...:- Traditional Unix
2.Micro Kernel :few
few services(Memory management ,CPU management,IPC etc) from core kernel, other services(File management,I/O management. etc.) from different layers/component
Split Approach [Some services is in privileged(kernel) mode and some are in Normal(user) mode]
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Return a `struct` from a function in C
...that take place flinging structures around by value can be a real waste of CPU cycles, not to mention memory bandwidth.
– Carl Norum
Mar 11 '12 at 7:15
10
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实时开发、测试和调试工具 · App Inventor 2 中文网
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Android 日志和 adb（高级）
如果你在 Android 设备上遇到问题，有时可以通过检查 Android 日志来获取信息。 例如，如果你的应用程序空间不足，则会记录在日志中。 日志中的消息通常难以理解，但是你可以使用通知程序组件使你...