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How to create a GUID/UUID in Python
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Copied from : https://docs.python.org/2/library/uuid.html (Since the links posted were not active and they keep updating)
>>> import uuid
>>> # make a UUID based on the host ID and current time
>>> uuid....
How is the fork/join framework better than a thread pool?
...k into N subtasks in the beginning, sending them to a cached thread pool (from Executors ) and waiting for each task to complete? I fail to see how using the fork/join abstraction simplifies the problem or makes the solution more efficient from what we've had for years now.
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Differences between Proxy and Decorator Pattern
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Here is the direct quote from the GoF (page 216).
Although decorators can have similar implementations as proxies, decorators have a different purpose. A decorator adds one or more responsibilities to an object, whereas a proxy controls access to...
nodejs vs node on ubuntu 12.04
I installed nodejs on ubuntu from instructions given here
20 Answers
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How to read a file line-by-line into a list?
...dure mentioned here. The memory usage is far better when each line is read from the file and processed, as suggested by @DevShark here. Holding all lines in a collection object is not a good idea if memory is a constraint or the file is large. The execution time is similar in both the approa...
How does LMAX's disruptor pattern work?
...ttern, a description of the consumer barriers (the part related to reading from the disruptor) and some information on handling multiple producers available.
The simplest description of the Disruptor is: It is a way of sending messages between threads in the most efficient manner possible. It can b...
Starting iPhone app development in Linux? [closed]
... signing works fine, I've now got a production app on the store, submitted from the VM. I won't name it for obvious reasons.
– Chaos
Mar 3 '10 at 2:53
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What is Rack middleware?
...rocessing better?
Performance & Usage Monitoring: what stats can I get from the request and response?
Execution: actually handle the request and provide a response.
Being able to separate the different stages (and optionally include them) is a great help in developing well structured applicati...
Conventions for exceptions or error codes
...I prefer exceptions because
they interupt the flow of logic
they benefit from class hierarchy which gives more features/functionality
when used properly can represent a wide range of errors (e.g. an InvalidMethodCallException is also a LogicException, as both occur when there's a bug in your code ...
psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nels...