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psql: could not connect to server: No such file or directory (Mac OS X)
...brew info postgresql found out this that helped:
To migrate existing data from a previous major version of PostgreSQL run:
brew postgresql-upgrade-database
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Install autoreconf on OS X v10.7 (Lion)?
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By downloading the .pkg file from MacPorts and installing it, it does the trick for me.
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What is the “FS”/“GS” register intended for?
...be independent and part of a persistent virtual store. The idea was taken from the 1966 Multics operating system, that treated files as simply addressable memory segments. No BS "Open file, write record, close file", just "Store this value into that virtual data segment" with dirty page flushing.
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What does multicore assembly language look like?
...thread (usually thread 0 in core 0 in processor 0) starts up fetching code from address 0xfffffff0. All the other threads start up in a special sleep state called Wait-for-SIPI. As part of its initialization, the primary thread sends a special inter-processor-interrupt (IPI) over the APIC called a...
How to leave/exit/deactivate a Python virtualenv
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This doesn't deserve the downvotes. See edit of selected response: source deactivate is for the anaconda environment.
– Doug Bradshaw
Nov 13 '15 at 19:52
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How do I manually create a file with a . (dot) prefix in Windows? For example, .htaccess
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Within Notepad select File > Save As...
File name: ".whatever you want" (with the leading dot)
You can do it in Explorer (in Windows 7) by adding a period at the end of the filename:
.whatever you want.
Windows will automatically re...
What is an application binary interface (ABI)?
... re-compiled or run inside some type of emulation layer that can translate from one binary format to another.
IIRC, Windows currently uses the Portable Executable (or, PE) format. There are links in the "external links" section of that Wikipedia page with more information about the PE format.
Als...
How is Node.js inherently faster when it still relies on Threads internally?
... standard procedural way, the code might look like this:
result = query( "select smurfs from some_mushroom" );
// twiddle fingers
go_do_something_with_result( result );
If the request coming in caused you to create a new thread that ran the above code, you'll have a thread sitting there, doing no...
How do I serialize an object and save it to a file in Android?
...size()];
int i=0;
for (JsonElement jsonElement : arr)
events[i++]=gson.fromJson(jsonElement, Event.class);
//Object example
pagination=gson.fromJson(parser.parse(jsonPagination).getAsJsonObject(), Pagination.class);
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What is the difference between the operating system and the kernel? [closed]
I do not understand the difference between operating system and kernel. Can someone please explain it?
3 Answers
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