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Context switches much slower in new linux kernels

...and dances to its own tune. In other words, even if you completely disable all C states in your PC's (or server's) BIOS, this driver will still force them on during periods of brief inactivity, which are almost always happening unless an all core consuming synthetic benchmark (e.g., stress) is runni...
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How to add /usr/local/bin in $PATH on Mac

...se it's on the right hand side of an assignment, but in general, and especially on Macs with their tradition of spacy pathnames, expansions like $PATH should be double-quoted as "$PATH". share | imp...
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What's the meaning of exception code “EXC_I386_GPFLT”?

...hich is the x86's way to tell you that "you did something that you are not allowed to do". It typically DOESN'T mean that you access out of memory bounds, but it could be that your code is going out of bounds and causing bad code/data to be used in a way that makes for an protection violation of som...
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How do I correctly clean up a Python object?

...it close() statement is that you have to worry about people forgetting to call it at all or forgetting to place it in a finally block to prevent a resource leak when an exception occurs. To use the with statement, create a class with the following methods: def __enter__(self) def __exit__(self...
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What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode

...ect can have multiple targets and you might not want the same settings for all targets. The project-level settings override the default settings and the target-level settings override the project-level settings. For example I have projects with both OSX and iOS targets and some are ARC and some ar...
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__FILE__ macro shows full path

....com/pipermail/cmake/2013-January/053117.html I'm copying the tip so it's all on this page: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'") If you're using GNU make, I see no reason you couldn't extend this to your own makefiles. ...
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How to obtain a Thread id in Python?

... Using the logging module you can automatically add the current thread identifier in each log entry. Just use one of these LogRecord mapping keys in your logger format string: %(thread)d : Thread ID (if available). %(threadName)s : Thread name (if available). a...
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Changing password with Oracle SQL Developer

... answered Feb 4 '13 at 22:21 NiallNiall 1,06911 gold badge77 silver badges33 bronze badges ...
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Import SQL file into mysql

I have a database called nitm . I haven't created any tables there. But I have a SQL file which contains all the necessary data for the database. The file is nitm.sql which is in C:\ drive . This file has size of about 103 MB. I am using wamp server. ...
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What does && mean in void *p = &&abc;

... | edited Aug 24 '11 at 12:15 answered May 24 '11 at 6:34 ...