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PHP memory profiling

...01-29) which can be used in Qcachegrind or similar tool. Just make sure to select the memory option :) From the docs: Since Xdebug 2.6, the profiler also collects information about how much memory is being used, and which functions aGnd methods increased memory usage. I'm not familiar with th...
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How to see which flags -march=native will activate?

I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using? ...
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ActiveRecord: size vs count

... don't know what you are doing, use size... count Resolves to sending a Select count(*)... query to the DB. The way to go if you don't need the data, but just the count. Example: count of new messages, total elements when only a page is going to be displayed, etc. length Loads the required dat...
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How can I add some small utility functions to my AngularJS application?

... Having utility functions as a service allows you to selectively access them in your controllers.. if no controllers use them, then the service won't be instantiated. – StuR Feb 28 '14 at 14:50 ...
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V

... Rollback... will prompt you to select a folder to rollback, ie, it will work on specific folders, and you can rollback to labels or changlists or dates. Back out works on the files in specific changelists. ...
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Code First: Independent associations vs. Foreign key associations?

...r = new Order { Id = 1, Customer = db.Customers.Find(1) }; Or you can use Select method to load the customer from db context. This works with independent association. – tala9999 Jan 28 '16 at 15:05 ...
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Using npm behind corporate proxy .pac

...hat I did is as follows: Used Fiddler, with "Automatically Authenticate" selected In fiddler custom rules, i added if (m_AutoAuth) {oSession["X-AutoAuth"] = "domain\\username:password";} Finally in npm i set the proxy to http://localhost:8888 This worked fine. ...
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Drawing a line/path on Google Maps

... // This Activity will draw a line between two selected points on Map public class MainActivity extends MapActivity { MapView myMapView = null; MapController myMC = null; GeoPoint geoPoint = null; /** Called when the activity is first created. */ @Override public ...
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“PKIX path building failed” and “unable to find valid certification path to requested target”

...pe example.cer chrome - click on site icon left to address in address bar, select "Certificate" -> "Details" -> "Export" and save in format "Der-encoded binary, single certificate". Now you have file with keystore and you have to add it to your JVM. Determine location of cacerts files, eg. C...
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Difference between float and decimal data type

...0,2), b float); mysql> insert into numbers values (100, 100); mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G *************************** 1. row *************************** @a := (a/3): 33.333333333 @b := (b/3): 33.333333333333 @a + @a + @a: 99.9999999990000000000000...