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Is R's apply family more than syntactic sugar?
... It does vary with OS and R version... and in an absolute sense CPU. I just ran with 2.15.2 on Mac and got sapply 50% slower than for and lapply twice as fast.
– John
Jan 13 '13 at 0:08
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Java 8: performance of Streams vs Collections
... I think your test is fair, you just need a machine has more cpu cores.
– Mellon
Nov 19 '15 at 19:34
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Is 'switch' faster than 'if'?
...h statement provokes the compiler into sending the value directly into the CPU registers rather than putting it on the stack first. This is therefore in favour of the switch statement and not a balanced test.
Oh and I think you should also reset counter between tests. In fact, you probably should b...
Why is “except: pass” a bad programming practice?
...The main problem here is that it ignores all and any error: Out of memory, CPU is burning, user wants to stop, program wants to exit, Jabberwocky is killing users.
This is way too much. In your head, you're thinking "I want to ignore this network error". If something unexpected goes wrong, then you...
Why should I not include cpp files and instead use a header?
...ng with a tiny tiny little program, and a nice and relatively unencumbered CPU to compile it for you. You won't always be so lucky.
If you ever delve into the realms of serious computer programming, you'll be seeing projects with line counts that can reach millions, rather than dozens. That's a l...
How to use WeakReference in Java and Android development?
...ay well when in use. Of note, NetBeans can be brought to an effective 100% CPU stop by this.
– Tom Hawtin - tackline
Jul 14 '10 at 9:22
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What's the best way to get the last element of an array without deleting it?
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@DavidMurdoch Perhaps, but it sure does churn the RAM and CPU, creating the temp array for the array values...
– Theodore R. Smith
May 5 '12 at 2:46
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Fastest hash for non-cryptographic uses?
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if you have the benefit/luxury of a newer Intel cpu, there is a crc32c assembly command that is...probably really fast (though isn't the traditional crc32 value). See also xxhash code.google.com/p/xxhash
– rogerdpack
Dec 2 '13 at 20:...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...ess your data using ByteString and Buffer to do some clever things to save CPU and memory. (FYI: This reminds me of the Koush's OIN library with NIO support!)
We can use Retrofit together with RxJava to combine and chain REST calls using rxObservables to avoid ugly callback chains (to avoid callback...
Lock, mutex, semaphore… what's the difference?
...r of threads to enter, this can be used for example to limit the number of cpu, io or ram intensive tasks running at the same time.
For a more detailed post about the differences between mutex and semaphore read here.
You also have read/write locks that allows either unlimited number of readers or...