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How many threads can a Java VM support?
How many threads can a Java VM support? Does this vary by vendor? by operating system? other factors?
12 Answers
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Git commit in terminal opens VIM, but can't get back to terminal
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esc key does nothing for me. What is this cryptic commands, is this 2016 or 1996? Incredible...
– oyalhi
Jan 8 '16 at 18:40
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Print Current Mercurial Revision Hash?
...the changeset we are updated to, use "hg id". The only problem is, "hg id" does not support templates nor have an option to print long hash (unless someone knows how to do that).
– Eiver
Nov 28 '11 at 11:13
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How to initialize an array in one step using Ruby?
...y will be:
array = Array.new(3) { |i| (i+1).to_s }
Finally, although it doesn't produce the same array of three strings as the other answers above, note also that you can use enumerators in Ruby 1.8.7+ to create arrays; for example:
array = 1.step(17,3).to_a
#=> [1, 4, 7, 10, 13, 16]
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bash: Bad Substitution
...ang line will be ignored and the script will be interpreted by dash, which does not support that string substitution syntax.
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PHP Session Fixation / Hijacking
... in php.ini. Set this to session.hash_bits_per_character = 5. While this doesn't make it any harder to crack, it does make a difference when the attacker tries to guess the session identifier. The ID will be shorter, but uses more characters.
Set an additional entropy with session.entropy_file an...
How do I get my C# program to sleep for 50 msec?
...mming language:
Loose waiting
Executing thread blocks for given time (= does not consume processing power)
No processing is possible on blocked/waiting thread
Not so precise
Tight waiting (also called tight loop)
processor is VERY busy for the entire waiting interval (in fact, it usually consum...
How do I get the current absolute URL in Ruby on Rails?
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@giladbu fullpath does NOT include the protocol/domain/port! It’s not an absolute URL!
– Alan H.
Aug 1 '11 at 21:36
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How to use Sublime over SSH
...ur skills with UNIX file systems.
Hack together something like rmate which does file editing over remote tunneling using some kind of a local daemon (very difficult, cumbersome, but sudo compatible) http://blog.macromates.com/2011/mate-and-rmate/
Also, in theory, you can install X11 on the remote...
What is the current directory in a batch file?
...e full path to the batch directory and file name (static).
See also: What does %~dp0 mean, and how does it work?
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