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Comment: Re:Of Course They Do! (Score 1) 126

by philip.paradis (#47711451) Attached to: Operating Systems Still Matter In a Containerized World

I like how you didn't bother to directly respond to any of the points listed. Your apparent inability to properly tune a virtualization host and its guests is your problem, and not reflective of the current abilities offered by modern virtualization systems. To address your point regarding GPU losses, if you're really that concerned about such issues on server systems, you're welcome to give host passthrough a shot with one of your guests; a lot of nice work has been done in that area lately. That said, these are indeed server systems we're talking about, and for the majority of use cases the only displays involved are the odd VNC/RDP session. What was your point, again?

Comment: Re:Of Course They Do! (Score 5, Informative) 126

by philip.paradis (#47711005) Attached to: Operating Systems Still Matter In a Containerized World

Modern virtualization doesn't have the overhead the GP cited; the 20% RAM loss and 30% CPU capacity loss numbers cited by the AC you responded to are absurd fabrications. I use KVM on Debian hosts to power a large number of VMs running a variety of operating systems, and the loss of CPU bandwidth and throughput with guests is negligible due to hardware virt extensions in modern CPUs (where "modern" in fact means "most 64-bit AMD and Intel CPUs from the last few years, plus a small number of 32-bit CPUs"). Using the "host" CPU setting in guests can also directly expose all host CPU facilities, resulting in virtually no losses in capabilities for mathematically-intensive guest operations. As far as memory is concerned, far from resulting in a 20% loss of available RAM, I gain a significant amount of efficiency in overall memory utilization using KSM (again, used with KVM). On a host running many similar guests, extremely large gains in memory deduplication may be seen. Running without KSM doesn't result in significant memory consumption overhead either, as KVM itself hardly uses any RAM.

The only significant area of loss seen with modern virtualization is disk IO performance, but this may be largely mitigated through use of correctly tuned guest VM settings and updated VirtIO drivers. The poster you replied to is ignorant at best, and trolling at worst.

Comment: Re:Why ODF? (Score 1) 164


ASCII was incorporated into the Unicode character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters. Even more importantly, forward compatibility is ensured as software that recognizes only 7-bit ASCII characters as special and does not alter bytes with the highest bit set (as is often done to support 8-bit ASCII extensions such as ISO-8859-1) will preserve UTF-8 data unchanged.

Please describe all the platforms you presently use which do not support ASCII, and please provide statistics on the market presence for such platforms.

Comment: Re:Ok (Score 1) 83

Does your shop have a relatively narrow development scope? Over the course of my career, I've found that single language shops are either fairly tightly tied to a small set of problem domains, or they're full of people who see every problem as a nail so to speak. The latter condition is an unfortunate state of inflexibility that tends to extend into other areas, including higher level systems work and network architecture. I'm not saying your organization suffers from that affliction, but I would like to understand a bit more about the sort of development your team does. For the record, I'm a big fan of mature systems in general, and for most of my work various combinations of Perl, Bash, C, and Python gets the job done (usually in that order).

Comment: Re:The Existence of a "United States of America" (Score 1) 231

by philip.paradis (#47453245) Attached to: NSA Says Snowden Emails Exempt From Public Disclosure

I'm 33 and have three children, two daughters and a son. I am interested in teaching them science, mathematics, literature, history, and how to think for themselves. I'm also interested in teaching each of them how to grow food, clean and shoot a rifle, clean and cook small game, and build things with their own hands. Political and economic conditions aside, I believe these are all things children should learn. What are you teaching your children?

Comment: Re:Snowden's copies? (Score 1) 231

by philip.paradis (#47447251) Attached to: NSA Says Snowden Emails Exempt From Public Disclosure

To be perfectly clear, Snowden is actually in possession of some emails. That much has been known for some time. You know exactly what I'm talking about when I speak to the probability that he is in possession of copies of all his correspondence (extremely low), especially copies which could be authenticated via certain means. Again, you know exactly what I'm talking about here, and you're simply being disingenuous.

White dwarf seeks red giant for binary relationship.