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dd: How to calculate optimal blocksize? [closed]
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Excellent point about remembering to drop caches. This was messing up my measurements! (Although minor issue: it's "drop_caches", with an underscore. Apparently edits need to be at least 6 characters... :( )
– Tom
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Better way of incrementing build number?
...t file, however it's making Xcode 4.2.1 crash frequently (with an error about the target not belonging to a project; I'm guessing the changing of the plist file is confusing Xcode in some way).
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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
... to see what changes are made in that branch, compared to this branch, without taking notice of changes in this branch only.
The .. is somewhat simpler: In the git-diff case, it's the same as a git diff A B and just diffs A against B. In the log case, it shows all commits that are in B but not in A...
Simple argparse example wanted: 1 argument, 3 results
...ailed it!'
But this positional argument is now required. If you leave it out when invoking this program, you'll get an error about missing arguments. This leads me to the second part of the original question. Matt Wilkie seems to want a single optional argument without a named label (the --option ...
Is D a credible alternative to Java and C++? [closed]
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Just to add my own experiences into the mix:
About a year ago I worked on a small scale game project (3 coders) lasting 3 months, where we used D as our primary language. We chose it partly as an experiment, partly because it already had bindings for SDL and some other to...
Are non-synchronised static methods thread safe if they don't modify static class variables?
...ised, but does not modify any static variables is it thread-safe? What about if the method creates local variables inside it? For example, is the following code thread-safe?
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Adding new column to existing DataFrame in Python pandas
... no
0 small harebell blue yes
[]= is the way to go, but watch out!
However, if you have a pd.Series and try to assign it to a dataframe where the indexes are off, you will run in to trouble. See example:
df['protected'] = pd.Series(['no', 'no', 'no', 'yes'])
size name color p...
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...ents have a state. This state is like an observable you might find in knockout or other MVVM style libraries. Essentially, React knows when to re-render the scene because it is able to observe when this data changes. Dirty checking is slower than observables because you must poll the data at a regul...
What makes Lisp macros so special?
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I know it's pretty unrelated, but I'm wondering about syntax and how the parsing actually works... Say I call lcomp that way ( changing the thirs item from "for" to "azertyuiop" ) : (lcomp x azertyuiop x in (range 10) if (= (% x 2) 0)) will the macro still work as expe...
When should I use a composite index?
... original post. My query is to return homes within a square grid. I know about spatial and I'm not trying to calculate distances. I simply want to know if using a composite index make sense when I'm trying to display all homes within a particular geo grid (e.g. neighborhood/city/county)
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