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Why is printing “B” dramatically slower than printing “#”?
I generated two matrices of 1000 x 1000 :
3 Answers
3
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How do you determine what SQL Tables have an identity column programmatically
...data_type
, last_value
, CASE
WHEN last_value < 0 THEN 100
ELSE (1 - CAST(last_value AS FLOAT(4)) / max_value) * 100
END AS [percentLeft]
, CASE
WHEN CAST(last_value AS FLOAT(4)) / max_value >= @threshold
THEN 'warning: approaching max l...
How many threads is too many?
...t guess. One suggestion is to make it configurable and initially set it to 100, then release your software to the wild and monitor what happens.
If your thread usage peaks at 3, then 100 is too much. If it remains at 100 for most of the day, bump it up to 200 and see what happens.
You could actual...
Variable length (Dynamic) Arrays in Java
... i < 11; i++) {
if (i<arr.length) {
arr[i]=i+100;
}
else {
arr=increaseSizeOfArray(arr);
arr[i]=i+100;
}
}
for (int i = 0; i < arr.length; i++) {
System.out.println("arr="+arr[i]);
}
}
...
Override console.log(); for production [duplicate]
... will still do a call to a (empty) function causing overhead, if there are 100 console.log commands, you are still doing 100 calls to a blank function.
Not sure how much overhead this would cause, but
Accurate way to measure execution times of php scripts
...eturned does contain the microseconds... Best solution is to times this by 1000... see stackoverflow.com/questions/3656713/… as an example..
– Angry 84
Jun 2 '16 at 2:01
1
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ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...t /etc/hosts. Assuming the Raspberry has hostname "berry" and ip "172.16.0.100", add one line:
# ip hostname
172.16.0.100 berry
Now: ssh user@berry should work.
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Align image in center and middle within div
...;
display: block;
}
<div id="over" style="position:absolute; width:100%; height:100%">
<img src="http://www.garcard.com/images/garcard_symbol.png">
</div>
JSFiddle
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How can I get the browser's scrollbar sizes?
...dth () {
var inner = document.createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer = document.createElement('div');
outer.style.position = "absolute";
outer.style.top = "0px";
outer.style.left = "0px";
outer.style.visibility = "hidden";
outer.sty...
Is there any advantage of using map over unordered_map in case of trivial keys?
... x86_64 Linux system
$ ./time_hash_map
TR1 UNORDERED_MAP (4 byte objects, 10000000 iterations):
map_grow 126.1 ns (27427396 hashes, 40000000 copies) 290.9 MB
map_predict/grow 67.4 ns (10000000 hashes, 40000000 copies) 232.8 MB
map_replace 22.3 ns (37427396 hashes,...