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How to scale Docker containers in production
So I recently discovered this awesome tool, and it says
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C++ performance vs. Java/C#
...m impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it.
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What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
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What happens if somebody passes a unicode string to your function? Or a class derived from dict? Or a class implementing a dict-like interface? Following code covers first two cases. If you are using Python 2.6 you might want to use collection...
How to create a zip archive of a directory in Python?
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As others have pointed out, you should use zipfile. The documentation tells you what functions are available, but doesn't really explain how you can use them to zip an entire directory. I think it's easiest to explain with some example code:
#!/usr/bin/env python
import os
import zip...
How do I get the backtrace for all the threads in GDB?
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The command in @Doomsday comment hangs for me. Better try with gdb <binary> <coredump> -ex "thread apply all bt" -ex "detach" -ex "quit" > output.log, to avoid a question from gdb that blocks the command waiting for input.
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How do you copy a record in a SQL table but swap out the unique id of the new row?
This question comes close to what I need, but my scenario is slightly different. The source table and destination table are the same and the primary key is a uniqueidentifier (guid). When I try this:
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
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Rewrite the query into this
SELECT st1.*, st2.relevant_field FROM sometable st1
INNER JOIN sometable st2 ON (st1.relevant_field = st2.relevant_field)
GROUP BY st1.id /* list a unique sometable field here*/
HAVING COUNT(*) > 1
I think st2.relevant_field must be in the select, because oth...
Python logging: use milliseconds in time format
By default logging.Formatter('%(asctime)s') prints with the following format:
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How to remove frame from matplotlib (pyplot.figure vs matplotlib.figure ) (frameon=False Problematic
To remove frame in figure, I write
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How do you stop tracking a remote branch in Git?
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As mentioned in Yoshua Wuyts' answer, using git branch:
git branch --unset-upstream
Other options:
You don't have to delete your local branch.
Simply delete the local branch that is tracking the remote branch:
git branch -...