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Virtual Memory Usage from Java under Linux, too much memory used
...4-linux-gnu/libc-2.13.so
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A quick explanation of the format: each row starts with the virtual memory address of the segment. This is followed by the segment size, permissions, and the source of the segment. This last item is either a file or "anon", which indicates a block of memory allocated v...
Android studio using > 100% CPU at all times - no background processes appear to be running
...llowing options in the File Menu:
File Menu -> Invalidate Caches / Restart... -> Invalidate and Restart
Enable Power Save Mode by clicking on File -> Power Save Mode
Power Save mode only disable code insights and background tasks.
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How do I change read/write mode for a file using Emacs?
...f you want to change the permissions on a file in the file system, perhaps start with dired on the directory that contains the file. Documentation for dired can be found in info; C-h i (emacs)dired RET.
share
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Making heatmap from pandas DataFrame
...to_bins(index):
"""Calculate bins to contain the index values.
The start and end bin boundaries are linearly extrapolated from
the two first and last values. The middle bin boundaries are
midpoints.
Example 1: [0, 1] -> [-0.5, 0.5, 1.5]
Example 2: [0, 1, 4] -> [-0.5,...
How to solve error message: “Failed to map the path '/'.”
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Go to the topmost level of the tree in IIS, and click Restart (under Manage Server). Fixed this same problem for me, using the IIS GUI.
– Dean
Jan 9 '14 at 15:15
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I ran into a merge conflict. How can I abort the merge?
... --abort.
As always, make sure you have no uncommitted changes before you start a merge.
From the git merge man page
git merge --abort is equivalent to git reset --merge when MERGE_HEAD is present.
MERGE_HEAD is present when a merge is in progress.
Also, regarding uncommitted changes when start...
Alarm Manager Example
... {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
alarm.setAlarm(this);
return START_STICKY;
}
@Override
public void onStart(Intent intent, int startId)
{
alarm.setAlarm...
No connection could be made because the target machine actively refused it?
... networking issues unlikly. What is very likly is that the web service has started up more slowly than the client application while testing. Still adding retry logic is defintely the way to go.
– Martin Brown
Mar 8 '12 at 9:42
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Good tutorials on XMPP? [closed]
...prisingly the open-source projects assume you know these things before you start digging into the code.
7 Answers
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Why does i = i + i give me 0?
...e to integer overflow.
In 32-bit twos-complement arithmetic:
i does indeed start out having power-of-two values, but then overflow behaviors start once you get to 230:
230 + 230 = -231
-231 + -231 = 0
...in int arithmetic, since it's essentially arithmetic mod 2^32.
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