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MySQL maximum memory usage
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MySQL's maximum memory usage very much depends on hardware, your settings and the database itself.
Hardware
The hardware is the obvious part. The more RAM the merrier, faster disks ftw. Don't believe those monthly or weekly news letters though. MySQL doesn't scale linear - not even on Oracle hard...
Redirect stdout pipe of child process in Go
...d. (That's a problem because this server-like program runs for a long time and I want to read the log output)
3 Answers
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Showing line numbers in IPython/Jupyter Notebooks
...er keyboard shortcuts.
In more details CTRL - M (or ESC) bring you to command mode, then pressing the L keys should toggle the visibility of current cell line numbers. In more recent notebook versions Shift-L should toggle for all cells.
If you can't remember the shortcut, bring up the command pal...
Command to get time in milliseconds
Is there a shell command in Linux to get the time in milliseconds?
12 Answers
12
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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How to set or change the default Java (JDK) version on OS X?
... @MattO'Brien it’s something which depends on the shell you’re using, and the configuration you have in place, so I can’t give a complete solution for that…
– markhellewell
Nov 14 '14 at 2:25
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GCC -fPIC option
...bout GCC's Options for Code Generation Conventions , but could not understand what "Generate position-independent code (PIC)" does. Please give an example to explain me what does it mean.
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How do I update all my CPAN modules to their latest versions?
...ve method to using upgrade from the default CPAN shell is to use cpanminus and cpan-outdated.
These are so easy and nimble to use that I hardly ever go back to CPAN shell. To upgrade all of your modules in one go, the command is:
cpan-outdated -p | cpanm
I recommend you install cpanminus like th...
How can I build a small operating system on an old desktop computer? [closed]
...things first. Read, read, read, read, read. You need to have a firm understanding of how the OS works before you can hope to implement your own.
Grab one of Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Op...
Convert xlsx to csv in Linux with command line
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The Gnumeric spreadsheet application comes with a command line utility called ssconvert that can convert between a variety of spreadsheet formats:
$ ssconvert Book1.xlsx newfile.csv
Using exporter Gnumeric_stf:stf_csv
$ cat newfile.csv
Foo,Bar,Baz
1,2,3
123.6,7.89,
2012/05/14...