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Is Python interpreted, or compiled, or both?
...hen it is implemented by an interpreter like CPython, Jython or IronPython etc.
– Pankaj Upadhyay
Jul 31 '11 at 13:54
20
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LinkedBlockingQueue vs ConcurrentLinkedQueue
... call poll(), wait a bit if you hadn't found anything, and then poll again etc... leading to delays when a new item comes in, and inefficiencies when it's empty (due to waking up unnecessarily from sleeps).
From the docs for BlockingQueue:
BlockingQueue implementations are designed to be used p...
Difference between WAIT and BLOCKED thread states
... the more high-level concurrency constructs - like locks, blocking queues, etc... broadly speaking, whenever two threads have to coordinate.
– Flavio
Mar 28 '13 at 13:52
1
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How to deal with a slow SecureRandom generator?
...ized environment because it doesn't require any special hardware, only the CPU itself and a clock.
On Ubuntu/Debian:
apt-get install haveged
update-rc.d haveged defaults
service haveged start
On RHEL/CentOS:
yum install haveged
systemctl enable haveged
systemctl start haveged
Option 2. Reduce...
Volatile vs Static in Java
...
What is the cache when you say "locally cached"? CPU cache, some kind of JVM cache?
– mert inan
Dec 17 '12 at 21:15
6
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Why are nested weights bad for performance? Alternatives?
...the same attributes as LinearLayout(orientation, weightSum, layout_weight, etc.) and doesn't show message - "nested weights have bad for performance"
Example:
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="ver...
Node.js vs .Net performance
...ith Node (querying the database, retrieving data from an external service, etc etc). You'll see huge performance gains with Node over ASP.NET MVC.
– alessioalex
May 18 '12 at 8:40
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What is the difference between _tmain() and main() in C++?
...o program Windows is to define UNICODE. And some other adjustments for C++ etc., before including <windows.h>. Then use the Unicode functions like CreateWindow (in general with no W needed at the end).
– Cheers and hth. - Alf
Apr 1 '12 at 18:56
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地图组件做App到底怎么选？我踩完6个坑，帮你总结了这份横评 - App应用开发...
...门开了Android Studio项目，配了高德SDK，写了半天Gradle依赖问题都没解决……对于AI2的目标用户来说，原生开发的门槛太高了，完全失去了"积木编程"的意义。
方案D是个坑。 听起来很美好——"我前端很熟，用Leaflet十...
How does Google's Page Speed lossless image compression work?
...fullest, e.g. PNG8+a instead of PNG24+a, optimized Huffman tables in JPEG, etc.
Photoshop doesn't really try hard to do that when saving images for the web, so it's not surprising that any tool beats it.
See
ImageOptim (lossless) and
ImageAlpha (lossy) for smaller PNG files (high-level descrip...