
Re: Hard truths
No, Emacs is better!
1861 publicly visible posts • joined 9 Sep 2014
You get like 15% more CPU performance for like 50% more energy. And 15% CPU power does not usually translate into 15% overall performance. On top of that, benchmarking becomes close to impossible. I have yet to see a compute cluster where any of this boost crap is enabled.
And don't get me started on that hyperthreading dreck.
I tend to use heuristics: Is the thing running on the right host? Does $(pwd) match the prefix it should? Is $USER what it should be? etc. etc.
Bail out with an informative message with anything dubious. Stuff like that has saved my arse so often!
Admittedly, scripts have to be modified sometimes. But that little bit of dull work is preferable to data loss or corruption.
Customer: My internet is broken!
Me: Mine is working fine.
A colleague was in the room and told me after the call "Maybe you should not be saying this". Seconds later he says "Heck, just keep doing it." I did, but only with a very small number of high maintenance customers that were particularly annoying.
> What could account for it being concentrated in Bavaria?
Having been there I can give you one reason.
Air moved from the disaster area over parts of southern Germany. There was localized rain at the parts most affected. The rain was just enough to bring down the radioactive stuff, but *not* nearly enough to wash that shit down the drains.
Therefore some places where the rain water collected (but, again, didn't go further) were quite radioactive. At the Uni where I studied we had a small amount of such dirt/sand in the spectrum analyzer (term? I mean the one for radioactivity; that thing needed to be cooled all times). Over time you could watch the half life of several elements you normal never encounter in nature.
P.S.: I'd not be worried about radioactivity unless eating fucktons of that meat (or mushrooms), even in the 'hot' regions.
Mid 1990s: customer had his own bow with Linux and a web server running on it. Few month later, after a power outage, customer calls us "The web server is gone!", me: "So it did not restart, right?", "No, the *server* is gone!", "OK, I'll have a look". Upon inspection there was nothing at all on the disk. Customer had installed everything in the installation system in RAM, nothing had every been written to disk. Took me quite a while to figure that one out. After new install I made the customer reboot the box to make sure he did not repeat the error.
For Linux users: As clicking the wheel tends to rotate it a bit (which messes things up) you can use shift-insert to paste. Apparently very few people know this.
I have long looked for a mouse that has a non-wheel middle key, found zilch. Why the heck does nobody build one?
> ...network would come to a shuddering stop whenever the weather froze...
Because the cold makes the cable shrink and the bends around corner get to sharp, bad with coax. Seen that a one place: -12 degrees or lower simply meant "no network today".
About lightning hitting outdoors cable, seen it once and it was spectacular. All computers in one building toast, network cards had scattered those little electronicy parts, motherboards and RAM were fried as well. Some computers in the other building somehow survived, no idea how. All in all pretty expensive.