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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...h a secure mechanism and both processes have to explicitly attach to it in order to use it.
The privileged mode is usually referred to as 'kernel' mode because the kernel is executed by the CPU running in this mode. In order to switch to kernel mode you have to issue a specific instruction (often ...
Python dictionary: are keys() and values() always the same order?
... apparently the statement in the 3.x documentation is clearer: "the order of items will directly correspond"
– Shaohua Li
May 8 '16 at 3:49
...
How do I sort a dictionary by value?
...representation of a dictionary that is sorted. Dictionaries are inherently orderless, but other types, such as lists and tuples, are not. So you need an ordered data type to represent sorted values, which will be a list—probably a list of tuples.
For instance,
import operator
x = {1: 2, 3: 4, 4: 3...
error opening HPROF file: IOException: Unknown HPROF Version
...s directory nevertheless. I had to chmod permissions in that directory in order for it to work.
– IgorGanapolsky
Feb 23 '12 at 23:56
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abort, terminate or exit?
...t successfully exits the
application, and calls atexit()
functions in LIFO order. I don't
normally see this in C++
applications, however, I do see it in
many unix based applications where it
sends an exit code at the end.
Usually a exit(0) indicates a
successful run of the application.
...
What are the differences between virtual memory and physical memory?
...s you from the realm of caches and RAM to that of disk, which is slower by orders of magnitudes. Painfully, irrevocably, transcendentally slower. It is an I/O operation, which means it is not CPU bound (it is rather the exact opposite), which means it does not need to occupy RAM right now. However, ...
About Android image and asset sizes
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Sorted collection in Java
...just for the purpose of having a sorted list. It is named (somewhat out of order with the other Sorted* interfaces) "java.util.PriorityQueue". It can sort either Comparable<?>s or using a Comparator.
The difference with a List sorted using Collections.sort(...) is that this will maintain a pa...
Better way to revert to a previous SVN revision of a file?
... to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was
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How can I comment a single line in XML?
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