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does intern() method have implication on performance?


does intern() method have implication on performance?

By : Dem Nod
Date : October 25 2020, 07:10 PM
Hope this helps I have some confusion about the usefulness of the intern() method. ,
How many objects will the above line of code create?
code :
String a = new String("abc").intern();
String a = "abc";


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What is the performance implication of converting to bool in C++?

What is the performance implication of converting to bool in C++?


By : Darwin Esq.
Date : March 29 2020, 07:55 AM
it fixes the issue I was puzzled by this behaviour, until I found this link:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=99633
Is there any performance implication in using one big <cfoutput> tag?

Is there any performance implication in using one big <cfoutput> tag?


By : sabersamurai
Date : March 29 2020, 07:55 AM
it fixes the issue Depending on the page contents, either is fine. There may be a performance impact (minor) by putting all of your page inside the CFOUTPUT tag, because the CFML engine needs to parse and scan the contents of the tag for executable code. Outside of the CFOUTPUT tag, the CFML engine can ignore the page as static content.
If you have CSS and HTML code that uses pound signs (for example named anchors or Hex color codes), you need to escape all pound signs (by adding a second one like "##") when within a CFOUTPUT. Because of this, I generally only put the CFOUTPUT around code I specifically want the CF engine to run.
Performance implication of emitting `onCompleted()` or not

Performance implication of emitting `onCompleted()` or not


By : Shreeti G.
Date : March 29 2020, 07:55 AM
To fix this issue I don't see any advantages to calling onCompleted in this case. If your observable used some resource that needed disposing of once you'd finished with the observable then I would say you should pass in a terminating event or unsubscribe.
If you wanted to be safe in these cases generally I would unsubscribe from the Subscriber instance that you subscribed with (create one and hold a reference to it so you can call subscriber.unsubscribe()).
Access SQL - SUM(IIF... vs IIF(SUM... performance implication

Access SQL - SUM(IIF... vs IIF(SUM... performance implication


By : way
Date : March 29 2020, 07:55 AM
will be helpful for those in need The two do different things. The first adds numbers that are not zero. The result can be zero (for instance, if the values are -1 and 1). The second can never by zero.
In any case, the difference in performance is going to be minimal. There is perhaps a wee amount of overhead for calculating the IFF() for every row, but the effort to do the aggregation should swamp that. And, a wee amount of overhead for calculating the SUM() twice in the second case.
code :
SELECT SUM([Field]) as sumField
FROM tbl;
Spark - Checkpointing implication on performance

Spark - Checkpointing implication on performance


By : Genius Boy
Date : March 29 2020, 07:55 AM
I wish this helpful for you
Yes, checkpointing is a blocking operation, so that it stops processing during its activity. The length of time for which computation is stopped by this serialization of state depends on the write performance of whichever media you're writing this to (have you heard of Tachyon/Alluxio ?).
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