This wouldn't have happened with Gainsborough or one of those proper painters.
Sunday, April 29
Benchmarks: E3, E5, 6200
Comparing Kurumi (Xeon E3 1230), Midori (Opteron 6272) and A12 at my day job (dual E5 2620)
Kurumi (E3 1230)
A12 (E5 2620 x2)
The E5 2620 is the only dual-socket system, and is the most expensive of the three. It also offers the best performance under heavy load - not surprising given the greater CPU resources - but as expected, lags behind under lighter loads due to the slower clock speed.
My performance model predicted a peak score of 3055; it actually outperformed that slightly, but I was pretty close.
So, we have 2009 Universe 1, 2009 Universe 2, 1985, Post-Ppocalypse, and now Post-Opocalypse timelines.
Has anyone done a flowchart of cause and effect in this show? A good detailed one, including the dinosaur wormhole and the white tulip timeloop? I suspect it would end up looking like a map of the London Underground.
Good guess, but no. There's a show called Fringe, which started out as a cheap X-Files knock-off, and turned into something other than else.
How much of the back story was planned out in advance I don't know, but it actually makes sense in a way X-Files never did. For values of sense that are perpendicular to the usual kind, but internally consistent nonetheless.
The fact that there even is a back story is a bit of a spoiler, since you don't know any of that going in to the first season. But I think the first season would be easier to get through if you went into it knowing that things will eventually connect together; going in blind it's a bit too monster-of-the-weekish. So it's a good spoiler.
Posted by: Pixy Misa at Monday, April 23 2012 03:09 AM (PiXy!)
The payoff for the backstory looks to be finally coming together. Although I need to catch up on the last few episodes. This appears to be the anti-Lost in terms of backstory.
Not that I watched Lost.
Last season, the rift war pretty much kept a single storyline running through most of it. This season is a lot looser, I guess due to the ending of the rift war. Spinning variations on its own cases to play with Olivia's memory.
The characters have always been what drew me consistently and have kept me coming back. Especially Walter.
BTW I was setting up ssh access to do some work on my wordpress setup. Was wondering if the demon is on a nonstandard port as I think I've setup the DSA keys properly.
Posted by: Andrew at Wednesday, April 25 2012 02:24 AM (cB03i)
Kurumi is a 3.2GHz Xeon E3 1230; 4 cores with hyper-threading for 8 logical cores, and turbo mode up to 3.6GHz.
Midori is a 2.1GHz Opteron 6272; two dies on a single package, each with 4 modules with 2 cores each but with some shared resources, for 16 physical cores, and turbo mode up to 3GHz.
The Xeon E3 core is more efficient than the Opteron core, as well as running at higher clock speeds. But the Opteron gives four times as many cores at a very modest price.
Let's see how they run for single-threaded applications, moderately-threaded ones, and then huge horrible messes of applications. These scores are aggregate throughput on my little Python benchmark.
Things are pretty much as expected up to four threads; the higher clocks and stronger cores on the Xeons outrun the Opteron. At eight threads, the Xeon delivers a better than expected result from hyperthreading, but the Opteron delivers an 80% scaling factor and outstrips the Xeon.
At 16 threads there's no improvement for the Xeon... But there's not much from the Opteron either. At 32 threads there's little change.
The Opteron is 25% slower for single-threaded applications, and 30% faster for multi-threaded ones. The performance at 16 threads is disappointing; that's probably due to a combination of the lower clock speed when all cores are active and the shared resources between core pairs. In fact, the performance gained by the extra cores in the Opteron is less than the gain from hyperthreading in the Xeon. That's a surprise, and one I hope AMD can address in future versions of the chip.
But it supports four times as much memory, so it's a much better chip for large servers.
A dual Xeon E5 2620 (the other option I was looking at) would be as much as 40% faster, based on these benchmarks, but it would also be about 40% more expensive (for the same amount of memory and storage). And - here's the tricky part - up through 8 threads it would offer no advantage at all. A dual E5 2620 would offer 12 full cores vs. 8 dual-core modules, but its lower maximum clock speed would offset the stronger architecture, and it would offer no performance advantage until you get beyond eight threads.
A dual Opteron 6272 would be about 40% faster again - at least, for heavily threaded workloads - and at the same price as the dual E5 2620. But I've decided to go for dual servers once we get to that point.
Midori will be main server, with Kurumi handling backup, logging, and monitoring tasks. Depending on how things go, I might end up adding more small servers like Kurumi to act as the web servers while Midori handles databases and applications. Everything is virtualised, so it will be easy to migrate tasks between boxes.
This is a very cost-effective solution too; it's about the same price as one Xeon E5 server, but gives me more CPUs (on the Opteron), faster CPUs (on the Xeon E3), more total memory, and a lot more disk space.
Really looking forward to getting these up and running.
I regularly buy games on Steam and GOG, and I'm ashamed to say I've even bought a game on Origin, but I've only used GamersGate a couple of times, for things that were either drastically cheaper that way or that I couldn't find elsewhere.
It's a very mixed bag, but the 1C pack offers more than 80 games for $20, including the well regarded King's Bounty, Men of War, and Space Rangers series. Along with what I'm sure are some real stinkers, but given that the first King's Bounty game alone would set you back $15 on Steam, $5 for another 80 games is pretty amazing value.
Talking to the hosting company in New Jersey, and it looks like mee.nu might be migrating eastwards in the coming months. We have been there before, from late 2005 to 2006. As best as I can recall:
2004 Lansing, Michigan
2006 New Jersey
I'm looking for a suitable provider in San Francisco / San Jose to replicate services to the opposite coast, but our main hardware will likely be in New Jersey.
I've got the money to spend on this, but I wasn't eager to upgrade our current systems because it didn't feel like I was getting good value. With this move, we'd be getting more hardware for less money - or a lot more hardware for the same money - which will give me scope to roll out lots of goodies.
I tried out 1.1 but ran into problems with database size and performance. There were new features in the pre-release code to address both of those - specifically, a native JSON library and built-in database compression - but it was such a pain trying to build it* that I gave up and went elsewhere.
But now I can just download it and throw it on a server (or indeed, my notebook) and give it a whirl. So I'll do that.
Update: Sent out a couple of emails, got a reply back from number 3 who kindly pointed me to their latest specials. I might be getting a smaller server with them to try things out, and if it all works well, get two more.
And when I say "smaller" I mean 16 CPUs and 32GB of RAM, which is one-third more of each than have at the moment. And then three of those. I expect we can get four times our current capacity for the same price.
Shadowrun is not nearly obscure enough. When and if either Traveller/Classic Traveller/MegaTraveller/Traveller 4, Twilight/Merc: 2000, Renegade Legion, Space: 1889, or 2300AD gets a Kickstarter project for any of them, then we will know that the tipping point has been reached.
Posted by: cxt217 at Thursday, April 05 2012 12:19 PM (P0CUo)
I want to see some of the older TSR games come across as 2D tactical RPGs - Gamma World, Top Secret, Star Frontiers. I loved Star Frontiers.
If they'd just kept right on making those Infinity Engine games (Baldur's Gate, Icewind Dale, Planescape Torment) I'd still be buying them today.
Posted by: Pixy Misa at Thursday, April 05 2012 03:48 PM (PiXy!)