Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
User Journal

Journal Journal: Mars, Ho! Chapter Thirty Four

Engine
An alarm woke me up at quarter to seven and for once I didn't mind a bit, and in fact I was glad it woke me up. I was in the middle of a really weird dream. A herd of cows was stampeding towards me, only they were running on their hind legs and somehow carrying big butcher knives in their front hooves, all singing a Chartov song while coming at me. Too many westerns, I guess.
It was engine seventeen, somethin

Comment Re:How is this news. (Score 1) 91

I would presume that TRIM marks the block as unused, so a background erase process can zero it when the drive isn't busy. From what I remember, the main goal of TRIM was to eliminate performance bottlenecks when the SSD had to overwrite previously-used blocks which the operating system had already freed up.

Comment Re:Another unverifiable "encryption product"... (Score 1) 91

... treat it as a regular unencrypted drive and apply proper encryption on top. Next.

While true, the problem with that approach is that the SSDs compress the data you write to them to improve performance and wear-levelling. So, if you encrypt the disk at the operating system level, you lose all that.

Obviously, if most of your data is already compressed, it won't matter.

Comment Ya, pretty much (Score 1) 962

That is why when you play online shooters, which attract many immature males, "faggot" is the default insult. They are insecure about their sexuality, as most young men are, and thus being called gay is one of the more hurtful things to them. they externalize that, of course, and thus that is what they use by default against others. However if they find something that works better, they'll go after that. Race, age, nationality, etc, etc.

They are assholes, sociopaths sometimes, they want to hurt others and they choose whatever they think is the most effective way to do it.

For that matter humans in general do it, women included. Bill Burr ha some hilarious bits, based in truth as the best comedy is, about women steering a losing argument towards personal attacks against their man. Saying he has a little dick, is a momma's boy, that kind of thing.

Well, that really happens. It isn't because women are some horrible creatures, but rather because they are using the insults they have learned will hurt the worst, when they get mad and decide to turn to insults. It's what people do when they lash out.

The difference between a normal person and a troll/asshole/ITG/sociopath and so on online is that most people do it only when they are angry, when they are lashing out at another person. These asshats do it for fun, just to get a rise out of people, and so on.

It is not something to be celebrated, or even tolerated (in any community I moderate trolling is a fast way to the banhammer) but trying to act like it is a problem limited to or directed at women is silly.

Comment Re:Let's draw a distinction here... (Score 2) 962

Of course it is assholes acting out. That's what happens when you remove consequences. Games have been an excellent example of that in terms of gameplay and mechanics. There have been games that have tried the whole "No rules but what the players make, they'll work out a stable system." No, actually it devolves in to a bunch of griefer assholes, and everyone else leaves. These people can't do that kind of thing in real life because they'd face consequences.

Sociopaths learn to moderate their behaviour in the real world because if they don't, they get punished. Online, they can run rampant and so they do.

Comment Re:The problem is... (Score 3, Informative) 190

In theory, you can always learn more by continuing to study something. In practice, though, modern medicine has a pretty complete knowledge of smallpox. Humans have been studying the disease since before anyone even knew what a virus was. There's evidence that the Chinese were inoculating people for smallpox over a thousand years ago. And the first practical, widespread form of that vaccine dates back to the late 1700s. This was literally the very first virus ever treated with a vaccine. It's well-trodden ground, research-wise.

The problem is, this virus is highly contagious and relatively dangerous compared with other viruses. For variola major, the case fatality rate is typically 30–60%, which puts it among the worst communicable diseases out there, approaching the fatality rate of ebola, and far more contagious. With nearly a two-week average incubation period (and up to 17 days in the worst case), one minor screw-up could easily cause a very serious pandemic before enough vaccines could be produced and distributed.

So basically, you have to weigh the odds of an accidental release (which, with recent revelations about this stuff getting lost for decades, then turning up by accident, seems not so improbable) against the relatively small chance of learning anything new from it that can't also be learned from cowpox or other similar viruses. On the risk-reward curve, this seems to be so far towards the "pure risk" end that any reward would border on undeniable proof of divine intervention, which means the speculated rewards would have to be pretty darn amazing for it to be worth the risk.

Comment Re:The problem is... (Score 1) 190

What could possibly be gained from further experimentation at this point? We already know how to isolate it and how to produce vaccines for it. And for gene therapy, there are lots of other, less dangerous viruses that can be used as vectors for delivering genetic material. It seems that keeping anything more than the bare minimum amount of material needed to produce vaccines would fall pretty far towards the risk end of the risk-reward curve.

Comment No shit (Score 2) 92

We consolidated about 20ish old servers (and added new systems) in to two Dell R720xds that are VM hypervisors. Not only does this save on power n' cooling but it is way faster, more reliable, and flexible. It is much easier and faster to rebuild and stand up a VM, you can snapshot them before making changes, if we need to reboot the hypervisor or update firmware we can migrate VMs over to the other host so there's no downtime. Plus less time is wasted on admining them since there are less systems, and they are newer.

On top of that they have good support contracts, and some excellent reliability features that you didn't get on systems even 5ish years ago (like actively scanning HDDs to look for failures).

Big time win in my book. Now does that mean we rush out and replace them with new units every year? No, of course not, but when the time comes that they are going out of support, or more likely that usage is growing past what they can be upgraded to handle, we'll replace them with newer, more powerful, systems. It is just a much better use of resources.

Comment Is this all necessary? (Score 5, Insightful) 98

Seems like you are trying to work out a solution to a problem you don't have yet. Maybe first see if users are just willing to play nice. Get a powerful system and let them have at it. That's what we do. I work for an engineering college and we have a fairly large Linux server that is for instructional use. Students can log in and run the provided programs. Our resource management? None, unless the system is getting hit hard, in which case we will see what is happening and maybe manually nice something or talk to a user. We basically never have to. People use it to do their assignments and go about their business.

Hardware is fairly cheap, so you can throw a lot of power at the problem. Get a system with a decent amount of cores and RAM and you'll probably find out that it is fine.

Now, if things become a repeated problem then sure, look at a technical solution. However don't go getting all draconian without a reason. You may just be wasting your time and resources.

User Journal

Journal Journal: Morgan Freeman on Mars

As I was going through Google News this morning I ran across an item about actor Morgan Freeman talking to a couple of astronauts on the ISS at a round table discussion at JPL before an audience of what looked like two or three hundred people, all of whom were JPL employees.

He was there with the producer of his show on the Science Channel Through the Wormhole and with its writer, a physicist.

Slashdot Top Deals

UNIX is hot. It's more than hot. It's steaming. It's quicksilver lightning with a laserbeam kicker. -- Michael Jay Tucker

Working...