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Postgres and Indexes on Foreign Keys and Primary Keys
...ate index on user_id in this case is effectively a waste of disk space and cpu time on inserts/updates/deletes.
– Dr.Strangelove
Dec 11 '17 at 3:44
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IN vs OR in the SQL WHERE Clause
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| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 8 | 1416 | 163 (2)| 00:00:02 |
|* 1 | TABLE ACCESS ...
Remote debugging with Android emulator
...? I'm sick and tired of the emulator constantly eating half of my laptop's CPU.
8 Answers
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How to see which flags -march=native will activate?
...ggest that this is suboptimal. The output of --help=target doesn't display CPU cache information, of which the methods both elias and 42n4 below have listed. Specifically, on gcc 4.9.2 on a Phenom, the output includes these: --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-siz...
PHP Sort Array By SubArray Value
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@KiloumapL'artélon If the result is < 0, it tells the sort function that a should appear before b. If it is > 0 then b should appear before a.
– kennytm
Apr 10 '18 at 16:19
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jQuery UI Dialog - missing close icon
... I thought it was worth explicitly saying it.)
– Kornél Regius
Aug 20 '18 at 9:34
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list every font a user's browser can display
...ch fiability in showing content or parsing page in manner to not fill much cpu
– Constantin
Jul 24 at 8:41
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JOIN queries vs multiple queries
...enchmark a server under load, however, in most cases, joins will take more CPU time vs PK queries, and often causes more network overhead as well.
– mindplay.dk
May 8 '15 at 19:06
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How to read embedded resource text file
...context error when compiling your code.
– Suzanne Dupéron
Mar 19 '13 at 10:02
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This will only w...
NumPy: function for simultaneous max() and min()
...ngle pass would be advantageous if the array exceed the size of the larger cpu caches.
– jtaylor
Mar 7 '14 at 13:58
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