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Calculate the execution time of a method
...sw.Stop();
Example results
132ms
4ms
3ms
3ms
2ms
3ms
34ms
2ms
1ms
1ms
Now you're wondering; "well why did it take 132ms the first time, and significantly less the rest of the time?"
The answer is that Stopwatch does not compensate for "background noise" activity in .NET, such as JITing. Theref...
Converting Epoch time into the datetime
... particularly %f for the microseconds porttion of the time. For reasons unknown, time.strftime() does not support that, although the microseconds can be represented in the float value that is input to time.localtime().
– Andreas Maier
Aug 13 '19 at 4:39
...
Which is faster: multiple single INSERTs or one multiple-row INSERT?
...
I know I'm answering this question almost two and a half years after it was asked, but I just wanted to provide some hard data from a project I'm working on right now that shows that indeed doing multiple VALUE blocks per insert...
How do I increase the scrollback buffer in a running screen session?
...defscrollback and not scrollback (def stand for default)
What you need to know is if the file is not created ! You create it !
> cd ~ && vim .screenrc
And you add defscrollback 1000000 to it!
Or in one command
> echo "defscrollback 1000000" >> .screenrc
(if not created already)...
Boolean literals in PowerShell
...am (
[bool]$cleanuprequired
)
echo "Batch file starting execution."
Now if I've to invoke this PS file from a PS command line, this is how I can do it:
installmyapp.ps1 -cleanuprequired $true
OR
installmyapp.ps1 -cleanuprequired 1
Here 1 and $true are equivalent. Also, 0 and $false ar...
How do I properly force a Git push?
..., but after you've already fetched. If you push force your rebased version now you will replace work from others.
git push --force-with-lease introduced in the git 1.8.5 (thanks to @VonC comment on the question) tries to address this specific issue. Basically, it will bring an error and not push if ...
Responsive font size in CSS
...vw to scale text so it doesn't look puny on a desktop! Perfect... Oh. Huh, now the text is too small to read when viewed on a phone. Okay, well I can just use "max(x,y)" to make sure it doesn't get shrunk beyond a minimum size. Perfect... Oh. Hmm. Looks like "max" isn't supported properly by Chrome....
How to parse a CSV file using PHP [duplicate]
... @Julix use the accepted answer . This shorter version is nice if you know the imported data will never have linebreaks within a single value, but otherwise the more robust solution is worth the extra lines of code.
– Jordan Lev
May 15 '17 at 3:57
...
Why do you need ./ (dot-slash) before executable or script name to run it in bash?
... the path does not contain / (e.g. someprog): PATH is used and CWD isn't
Now, suppose that running:
someprog
would search:
relative to CWD first
relative to PATH after
Then, if you wanted to run /bin/someprog from your distro, and you did:
someprog
it would sometimes work, but others it ...
Python syntax for “if a or b or c but not all of them”
...le which fits better with the original interface implied in the question. Now it is bending the tool to meet the available spec ... ;)
– wim
May 14 '13 at 2:11
2
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