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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
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ElasticSearch uses a large 230MB of RAM on 64bit Ubuntu after a fresh install with no data. I really wish Elasticsearch could be run on smaller VPS like PostgreSQL or Redis.
– Xeoncross
Jan 2 '15 at 23:35
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Try-catch speeding up my code?
...6 at 23:15
Lightness Races in Orbit
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answered Jan 20 '12 at 20:14
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Maximum number of threads in a .NET app?
...: .NET Thread Pool default numbers of threads:
1023 in Framework 4.0 (32-bit environment)
32767 in Framework 4.0 (64-bit environment)
250 per core in Framework 3.5
25 per core in Framework 2.0
(These numbers may vary depending upon the hardware and OS)]
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Difference between float and decimal data type
...iate for most business-oriented math, and inappropriate use of floats will bite you. Many decimal values can't be exactly represented in base-2. 0.1 can't, for instance, and so you see strange results like 1.0 - 0.1 = 0.8999999.
Decimals store base-10 numbers. Decimal is an good type for most busin...
insert multiple rows via a php array into mysql
...ion; instead, PHP does this once in the implode() statement. This is a big win.
If you have lots of columns to put together, and one or more are very long, you could also build an inner loop to do the same thing and use implode() to assign the values clause to the outer array.
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...om which provides good help regarding how to write batch scripts that the Windows Command Interpreter will run.
7 Answers
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How is TeamViewer so fast?
...neric desktop usage is linear movement of elements (scrolling text, moving windows, etc. opposed to transformation of elements).
The DirectX 3D performance of 1 FPS seems to confirm my guess to some extent.
share
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Go > operators
...e shift count is a number.
Shift instructions in x86 CPUs consider only 5 bits (6 bits on 64-bit x86 CPUs) of the shift count. In languages like C/C++, the shift operator translates into a single CPU instruction.
The following Go code
x := 10
y := uint(1025) // A big shift count
println(x >&g...
Does ruby have real multithreading?
...th:
jruby 1.5.6 (ruby 1.8.7 patchlevel 249) (2014-02-03 6586)
(OpenJDK 64-Bit Server VM 1.7.0_75) [amd64-java]
The second is with:
ruby 2.1.2p95 (2014-05-08) [x86_64-linux-gnu]
Interestingly, the CPU is higher for JRuby threads, but the time to completion is slightly shorter for the interpreted...
Best way to get application folder path
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When testing in Windows XP 32bit, it returns where the shortcut started.
– Joshua Son
Dec 7 '13 at 2:37
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