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Why dict.get(key) instead of dict[key]?
...ms that all three approaches now exhibit similar performance (within about 10% of each other), more or less independent of the properties of the list of words.
Earlier get was considerably slower, However now the speed is almost comparable along with the additional advantage of returning the defau...
Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the hea...
Should I use Java's String.format() if performance is important?
...ng.format in inner loops (running millions of times) resulted in more than 10% of my execution time spent in java.util.Formatter.parse(String). This seems to indicate that in inner loops, you should avoid calling Formatter.format or anything which calls it, including PrintStream.format (a flaw in Ja...
How to estimate a programming task if you have no experience in it [closed]
...ld. If not, lesser money and more research.
The class A is plus or minus 10%, the final and go or no go. If it is a go and I stray too far from the estimate I confess often and early.
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Best Practice for Forcing Garbage Collection in C#
...more efficient to throw out the kitchen garbage when the garbage can is at 10% or let it fill up before taking it out?
By not letting it fill up, you are wasting your time walking to and from the garbage bin outside. This analogous to what happens when the GC thread runs - all the managed threads a...
In .NET, which loop runs faster, 'for' or 'foreach'?
...Amazing, I'm getting even more aggressive difference on my machine, almost 10% in favor of foreach on simple arrays. I'm guessing wildly that this all stems from the jitter not have to worry about the extra variable, bound checks, etc.. would be very interesting if someone has a deep explanation of ...
Check if a Postgres JSON array contains a string
...ents on a table of 1,000,000 rabbits where each rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 solution
d=# explain analyze select info->>'name' from rabbits where exists (
d(# select 1 from json_array_elements(info->'food') as food
d(# where food::text = '"carr...
Should I put input elements inside a label element?
...he for attribute. In reality when I last tested this in Apple Voiceover (10% market share screenreaders desktop, 60% market share screenreaders mobile) implicit labels didnt work, so that was another major factor. Hope that helps!
– James Westgate
May 17 '16 ...
Find the min/max element of an Array in JavaScript
...array - greater the Math methods overtake. ( for 100 elems Math.min/max is 10% faster, for 1000 elems its +25% )
– Алексей Лещук
Apr 19 '18 at 7:31
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Do browsers parse javascript on every page load?
...s after the download has finished, and results in pages loading as much as 10% faster.
Code caching
Normally, the V8 engine compiles the page’s JavaScript on every visit, turning it into instructions that a processor understands. This compiled code is then discarded once a user navigates a...