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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...
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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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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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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 can HTML5 “replace” Flash? [closed]

...n ANY way. It's not vector-animated, it's not easy to use for an ANIMATOR, etc. Until there's a good authoring tool that makes flash-quality animations in SVG, CSS, HTML and some JS, it will not replace Flash for the animators. In terms of videos, the html5 video tag is what should be prevalent. ...
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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...
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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...
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Why does string::compare return an int?

... modern hardware) an integer of the same size as the system bus and/or the cpu registers, what is called the machine word. Therefore int is usually passed along faster than smaller types, because it doesn't require alignment, masking and other operations. The smaller types exist mainly to allow RAM...
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How to articulate the difference between asynchronous and parallel programming?

...nimation can also be considered as an individual task. If we have multiple CPUs/Cores or multiple machines available, we can render multiple frames in parallel to speed up the overall workload. share | ...
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How to mount a host directory in a Docker container

...t interfaces -a, --attach=[]: Attach to stdin, stdout or stderr. -c, --cpu-shares=0: CPU shares (relative weight) – Kishore Vaishnav May 4 '14 at 16:40 ...