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How efficient can Meteor be while sharing a huge collection among many clients?
...onnection to its
client and updates its server-side in-memory copy.
Total CPU cost is the cost to diff one Mongo query, plus the cost of
1,000 merge boxes checking their clients' state and constructing a new
DDP message payload. The only data that flows over the wire is a single
JSON object sent t...
How does a debugger work?
...ddress 0x7710cafe. As the instruction pointer changes the OS (or maybe the CPU) will have to compare the instruction pointer with all break point addresses, or am I mistaken? How does this work ..?
– displayname
Jan 23 '14 at 17:09
...
What is the purpose of a stack? Why do we need it?
...It has very good locality of reference, a very important feature on modern CPUs that chew through data a lot faster than RAM can supply it and supports recursion. Language design is heavily influenced by having a stack, visible in support for local variables and scope limited to the method body. A...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...me ./euler12-c
842161320
./euler12-c 11.95s
user 0.00s
system 99%
cpu 11.959 total
PyPy 1.5
% time pypy euler12.py
842161320
pypy euler12.py
16.44s user
0.01s system
99% cpu 16.449 total
RPython (using latest PyPy revision, c2f583445aee)
% time ./euler12-rpython-c
842161320
./eule...
Move all files except one
... empties the whole Old -directory. What is wrong?
– Léo Léopold Hertz 준영
Mar 22 '09 at 3:28
5
...
Better way to check variable for null or empty string?
Since PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
...
Get a random item from a JavaScript array [duplicate]
...tion if you want: npmjs.com/package/lodash.sample
– XåpplI'-I0llwlg'I -
Dec 4 '15 at 11:32
4
...
How do I limit the number of results returned from grep?
...finds the first 10 lines it looks like he continues thinking and "using my cpu" and just not printint it is it correcT? thansk
– Jas
Feb 16 '11 at 6:36
6
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What is the difference between task and thread?
...y only use them if you want to run multiple heavy computations on multiple CPUs. For example, in Windows, a thread weighs 12 KiByte (I think), in Linux, a thread weighs as little as 4 KiByte, in Erlang/BEAM even just 400 Byte. In .NET, it's 1 MiByte!)
...
How can we match a^n b^n with Java regex?
...-referencing group is to make the self-reference matching optional.
Step 4½: Understanding what went wrong
The problem is that since we made the self-reference matching optional, the "counter" can "reset" back to 0 when there aren't enough b's. Let's closely examine what happens at every iteration...