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How does one write code that best utilizes the CPU cache to improve performance?
This could sound like a subjective question, but what I am looking for are specific instances, which you could have encountered related to this.
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Scanner vs. StringTokenizer vs. String.Split
...Tokenizer that it gives you the output as a string array, which is usually what you want. Using an Enumeration, as provided by StringTokenizer, is too "syntactically fussy" most of the time. From this point of view, StringTokenizer is a bit of a waste of space nowadays, and you may as well just use ...
Rails find record with zero has_many records associated [duplicate]
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What's the Rails 4 version of this?
– fatuhoku
May 19 '17 at 14:47
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EF LINQ include multiple and nested entities
...ifference between Select and Include is that that with a Select you decide what you want to return (aka projection). The Include is a Eager Loading function, that tells Entity Framework that you want it to include data from other tables.
The Include syntax can also be in string. Like this:
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MYSQL OR vs IN performance
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What indexes were used in these tests?
– eggyal
Jan 1 '13 at 13:26
5
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Which exception should I raise on bad/illegal argument combinations in Python?
...your own exceptions, but inherit from a built-in one, which is as close to what you want as possible.
If you need to catch that specific error, it is helpful to have a name.
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How to kill/stop a long SQL query immediately?
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What could the reason
A query cancel is immediate, provided that your attention can reach the server and be processed. A query must be in a cancelable state, which is almost always true except if you do certain operations ...
foreach vs someList.ForEach(){}
...y(), All(), Max() or one of the many other LINQ methods doesn't already do what you want from the loop.
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How to handle Handler messages when activity/fragment is paused
...ic class FragmentTestActivity extends Activity {
/**
* Used for "what" parameter to handler messages
*/
final static int MSG_WHAT = ('F' << 16) + ('T' << 8) + 'A';
final static int MSG_SHOW_DIALOG = 1;
int value = 1;
final static class State extends Fragm...
memory_get_peak_usage() with “real usage”
...mple given in the answer is way too simple as there's no "wasted" memory". What happens is that the "real" allocated memory needs to be increased from "1 MiB" to "1.25 MiB" and that's what triggers the fatal error. I have a complex batch script with memory limit of 120 MiB that have "not real" alloc...