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Random record from MongoDB

... Apprichiate your idea. Finally, I have a great code that is much CPU & RAM friendly! Thank you – Qais Bsharat Mar 3 at 22:49 ...
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Python int to binary string?

...t's really just meant as a guideline on how it could be done. The general idea is to use code from (in order of preference): the language or built-in libraries. third-party libraries with suitable licenses. your own collection. something new you need to write (and save in your own collection for ...
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How does having a dynamic variable affect performance?

... @ShuggyCoUk: The idea of having a compiler-as-a-service had been kicking around for some time, but actually needing a runtime service do to code analysis was a big impetus towards that project, yes. – Eric Lippert ...
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Set up DNS based URL forwarding in Amazon Route53 [closed]

... The AWS support pointed a simpler solution. It's basically the same idea proposed by @Vivek M. Chawla, with a more simple implementation. AWS S3: Create a Bucket named with your full domain, like aws.example.com On the bucket properties, select Redirect all requests to another host name a...
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Delete all but the most recent X files in bash

... For the record, here's the explanation for why it's generally not a good idea to parse ls output: http://mywiki.wooledge.org/ParsingLs ls -tp | grep -v '/$' | tail -n +6 | xargs -I {} rm -- {} The above is inefficient, because xargs has to invoke rm once for each filename. Your platform's xargs...
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Do I really have a car in my garage? [duplicate]

...jects in different arrays - or better lists - an array is often not a good idea, since it's far less flexible in handling than a Collection-based class. share | improve this answer | ...
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Alternative to google finance api [closed]

... I have no idea. I'm actually not affiliated with Quandl, I just know that it's a place to get data. – user2023861 Sep 24 '14 at 13:10 ...
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HashSet vs. List performance

...often request a larger chunk of contiguous memory to be moved at once. The idea behind this is that the memory needed by the next instruction is probably very near to the memory used by the previous instruction and thus is often already in the cache. When your data is scattered all over the memory t...
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How to generate a core dump in Linux on a segmentation fault?

...cute little 17 GB core file (on a 25 GB partition). It's definitely a good idea to keep the core file's size limited :) – IceCool Sep 8 '13 at 15:48 1 ...
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Timer function to provide time in nano seconds using C++

...ock is likely to have inaccurate conversions to other units. It is a good idea to set your measurements up so that you can easily change and compare clocks (as shown in this answer). – Howard Hinnant Apr 25 '16 at 14:23 ...