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dd: How to calculate optimal blocksize? [closed]
...stats.st_blksize);
}
}
The best way may be to experiment: copy a gigabyte with various block sizes and time that. (Remember to clear kernel buffer caches before each run: echo 3 > /proc/sys/vm/drop_caches).
However, as a rule of thumb, I've found that a large enough block size lets dd do a...
Xcode variables
...trying to create a "run script build phase", you can start off this script by typing "env" (without the quotes) as the first line of your bash shell script (or the equivalent command for the shell you're using) and build your project. This will output all of the environment variables that are availa...
How can I get pg_dump to authenticate properly
...tgres via a local unix socket as any user with no password. It can be done by simply changing peer above to trust and reloading postgres.
# Don't require a password for local connections
local all all trust
...
CSS selector with period in ID
...some\\.id to escape the special character. The first backslash is consumed by Stylus, leaving the remaining backslash in the compiled CSS, which achieves the desired result described in this answer.
– markrian
Aug 15 '16 at 15:27
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How do I get the height and width of the Android Navigation Bar programmatically?
...d out separately if and where the navigation bar is actually showing, e.g. by testing for the presence of a physical menu button. Maybe you can find some other way in the Android souce code at android.googlesource.com/platform/frameworks/base/+/…
– user149408
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What does “Protocol … can only be used as a generic constraint because it has Self or associated typ
...
Look at 0:56 into the great presentation by Alexis Gallagher titled: Protocols with Associated Types and how they got that way (maybe) youtu.be/XWoNjiSPqI8
– finneycanhelp
Dec 22 '15 at 14:47
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How do I move a table into a schema in T-SQL
...veBoltnman: you've entered an answer 6 years after the accepted answer and by your own comment above "which is the same" .
– Mitch Wheat
Oct 13 '16 at 7:47
4
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jQuery.active function
...y, like jQuery.cache (where all of jQuery.data() goes).
I'm guessing here by actual usage in the library, it seems to be there exclusively to support $.ajaxStart() and $.ajaxStop() (which I'll explain further), but they only care if it's 0 or not when a request starts or stops. But, since there's ...
In Clojure 1.3, How to read and write a file
...commended when it is a really big file.
Number 2: how to read a file line by line.
(use 'clojure.java.io)
(with-open [rdr (reader "/tmp/test.txt")]
(doseq [line (line-seq rdr)]
(println line)))
The with-open macro takes care that the reader is closed at the end of the body. The reader func...
“ImportError: No module named” when trying to run Python script
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By 'init.py' you mean '_init_.py', right? I created the _init_.py as an empty file and it worked for me. Thanks a lot. But why is this needed? Before I had a python script in the same directory as my ipython notebook and th...