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A space to ponder, discuss, speculate, disagree, and learn.

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Old

A completely uninteresting, self-centered whinefest

Posted 06-19-2014 at 02:37 AM by ttk (Unpopular Positions: One Geek's Take)

It seems fitting that my first new blog entry in months should be a means of procrastination. I have lofty goals for this space, but they are thus far mostly unfulfilled. This study in self-pity shouldn't be here, but I feel the need to write about it, and I can't think of another place to do so. Maybe I need a journal? Something where I can write the stuff that doesn't matter?

If you hadn't figured it out already, you can refrain from reading this post and your life will be no...
ttk
Member
Posted in Reflection
Views 413 Comments 3 ttk is offline
Old

Memory overhead of Python and Perl associative arrays

Posted 05-06-2014 at 07:51 PM by ttk (Unpopular Positions: One Geek's Take)

I've been measuring the relative memory overhead of perl hashes and python dicts (essentially the same data type, both associative arrays).

These measures are necessarily approximate, since they resize differently as the tables fill, but the overhead comes to about 57 bytes plus 76 bytes per element for perl, and 264 bytes plus 123 bytes per element for python. Both of these are for numeric-to-numeric mappings.

About halfway through this exercise, it occurred to me...
ttk
Member
Posted in Uncategorized
Views 290 Comments 0 ttk is offline
Old

Geekbench

Posted 02-05-2014 at 05:04 PM by ttk (Unpopular Positions: One Geek's Take)

Because none of us have infinite time and money to throw at our computer hardware, it's nice to be able to look at a benchmark and gauge whether it's worth it to spend a little extra cash at a more powerful CPU, or one with a different memory subsystem, or a solid state disk, etc.

For this, we have system benchmarks.

For a system benchmark to be useful to a person, it must measure the system's capability to perform the kinds of tasks that person needs their system to...
ttk
Member
Posted in Technology
Views 508 Comments 0 ttk is offline
Old

Reflections: Progress on OpenSSL, and Greybeard Wisdom

Posted 02-01-2014 at 04:01 PM by ttk (Unpopular Positions: One Geek's Take)
Updated 02-01-2014 at 04:03 PM by ttk

I'm finally pulling out of a months-long depressive funk, and touched my openssl patch again. On one hand openssl isn't exactly pleasant to work with (hardly any comments, bizarre formatting, obscure internal interfaces), but it felt good to be writing some C and making progress on my #1 project.

In addition to writing the code, I really should be documenting the whys and hows of the changes, like I promised my friend Chris. I didn't remember that until just now. Perhaps enumerating...
ttk
Member
Posted in Reflection
Views 373 Comments 0 ttk is offline
Old

Some Observations Regarding NSA Surveillance

Posted 10-26-2013 at 02:43 PM by ttk (Unpopular Positions: One Geek's Take)
Updated 10-26-2013 at 02:44 PM by ttk (Adding categories)

Some things to keep in mind regarding the mass hoovering of data communications a la Room 641A:

Communication lines transport packets of data, each of which contains metadata (including identifiers for the origin of the packet and its destination) and data (voice, video, internet traffic, etc). Collection software would inspect each packet and append entries to its own data store, including at least the source, destination, and time the packet was inspected (and possibly additional...
ttk
Member
Posted in Technology, Politics
Views 384 Comments 0 ttk is offline

  



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