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Simplest way to profile a PHP script
... profiling.
// Call this at each point of interest, passing a descriptive string
function prof_flag($str)
{
global $prof_timing, $prof_names;
$prof_timing[] = microtime(true);
$prof_names[] = $str;
}
// Call this when you're done and want to see the results
function prof_print()
{
...
SQL Server Installation - What is the Installation Media Folder?
I am installing SQL Server 2008. I have installed .NET framework 3.5.
Then I got folder SQL Server 2008 and performed following steps-
...
Retrieve only the queried element in an object array in MongoDB collection
...r to filter an array during projection, which has the benefit of including all matches, instead of just the first one.
db.test.aggregate([
// Get just the docs that contain a shapes element where color is 'red'
{$match: {'shapes.color': 'red'}},
{$project: {
shapes: {$filter: {
...
Which commit has this blob?
... scripts take the blob’s SHA1 as the first argument, and after it, optionally, any arguments that git log will understand. E.g. --all to search in all branches instead of just the current one, or -g to search in the reflog, or whatever else you fancy.
Here it is as a shell script – short and sw...
In Python, how do you convert seconds since epoch to a `datetime` object?
...ollows: datetime.fromtimestamp(1423524051, timezone.utc). It has saved the extra library many times when I only need the UTC timezone from pytz.
– phouse512
Jan 10 '18 at 17:28
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Pickle incompatibility of numpy arrays between Python 2 and 3
...
This seems like some sort of incompatibility. It's trying to load a "binstring" object, which is assumed to be ASCII, while in this case it is binary data. If this is a bug in the Python 3 unpickler, or a "misuse" of the pickler by numpy, I don't know.
Here is something of a workaround, but I d...
R cannot be resolved - Android error
... I had this problem with the sample ApiDemos. Some missing resource in the strings.xml file. XML error are listed in the Eclipse's console.
– lemotdit
Jul 31 '10 at 3:34
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Multiple Updates in MySQL
...has new records then i will end up inserting only the ids and count except all other information. if and only if there is an entry for the id then it should update else it should skip. what shall i do?
– Jayapal Chandran
Aug 30 '10 at 13:30
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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...rst time you iterate over it. For example, this will print the headline of all entries in the database:
for e in Entry.objects.all():
print e.headline
So your ten million rows are retrieved, all at once, when you first enter that loop and get the iterating form of the queryset. The wait ...
live output from subprocess command
...dout.readline, b'') (i.e. the sentinel passed to iter needs to be a binary string, since b'' != ''.
– John Mellor
Apr 12 '15 at 17:58
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