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Choose Your Side On the Linux Divide

phoenix_rizzen Re:My opinion on the matter. (801 comments)

I'm leery of systems that automatically restart services when they crash, especially if the service just crashes again at startup, and you get into an infinite loop that eventually runs you out of disk space with *.core files.

If you need a system to be up that often, it's much nicer to setup a fail-over system or a cluster, where it doesn't matter if individual daemons or systems are running, so long as there's another to take it's place. Then you have time to investigate why things are failing on one node, and can implement a proper fix.

Auto-restarting crashing daemons is not a feature. It's a band-aid over top of poor system administration.

3 days ago
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Choose Your Side On the Linux Divide

phoenix_rizzen Re:Better question (801 comments)

Is it a hard dependency on logind the daemon? Or a dependency on the logind d-bus interface?

Kwin_wayland has a dependency on the logind d-bus interface, for example. And there's at least one project that implements the logind d-bus interface (don't remember the name of it off-hand). Thus, it's possible to run Kwin_wayland on a Linux distro without systemd installed ... and it will use the features of logind ... without actually having logind installed.

3 days ago
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Choose Your Side On the Linux Divide

phoenix_rizzen Re:My opinion on the matter. (801 comments)

Boot speed-up is a decent goal, but it should be the last goal, not the first.

My biggest issue with all these parallel boot setups is diagnosing issues at boot time. There's no way to guarantee that two boots will be identical. Boot up and daemon startup are no longer deterministic, and it takes a lot of voodoo hand-waving to diagnose issues with systemd, upstars, and other parallel boot managers.

At least with upstart and Debian's parallel boot setup you could flip a switch to serialise the boot, thus making it deterministic. However, by serialising things, you tend to avoid issues, not solve them.

Not to mention, on most servers and a lot of desktop, the longest part of the boot process is the POST, BIOS, device detection, option ROM loading, and other init stuff that happens *before* the boot loader is run, and long before the init process takes over. Whoop-de-doo, I shaved 10 seconds off the "boot loader, kernel, daemons" process! Never mind that it takes 2 minutes to get to that point.

3 days ago
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NVIDIAs 64-bit Tegra K1: The Ghost of Transmeta Rides Again, Out of Order

phoenix_rizzen Re:The Mill (125 comments)

The K1 in the SHIELD Tablet uses standard ARM Cortex-A15 cores, not the Denver CPU cores detailed in this story. Very different beasts.

about two weeks ago
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Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's

phoenix_rizzen Re:Remember Microsoft Windows? (195 comments)

Windows NT used a STREAMS-based networking stack, culled from some other UNIX (not directly, but using the concepts and frameworks), not a BSD-derived networking stack.

I have no idea how the DOS-based Windows networking stack developed. But it wasn't pulled from any BSD.

A few command-line utilities (ftp.exe is the most common cited one) were pulled from BSD sources, though.

about three weeks ago
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Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's

phoenix_rizzen Re:Will Happen (195 comments)

Except when you start talking about netmap. :) That's a userspace network stack that can push millions of pps, on sub-GHz systems.

There's even a netmap-enabled version of the IPFW packet filter that runs in userspace, filtering millions of pps on sub-GHz systems.

And there's an applications ecosystem starting to grow around netmap that keeps all network-related packet processing in userspace.

As a twist, netmap and IPFW are also available on Linux, and provide better performance than the in-kernel network stack and iptables. :)

about three weeks ago
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Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's

phoenix_rizzen Re:FreeBSD network stack (195 comments)

Google searches for "netmap" and "FreeBSD" will give you lots of information on pushing millions of pps through 900 MHz single-core machines. Netmap is also available on Linux. There's even a netmap-enabled version of IPFW that allows you to do packet filtering and routing completely in userspace, again will millions of pps. IPFW is also available on Linux, although I don't know if the netmap-enabled version is.

Google searches for "openconnect" and "FreeBSD" will give you lots of information and blog posts from the Netflix guys about why they picked FreeBSD, and how it all works, including details on the networking.

Google searches for "Adrian Chadd", or "RSS scaling", or similar terms will show you threads and posts on various FreeBSD mailing lists with information detailing a lot of the MSS/RSS work that's going into FreeBSD 11, and several projects that build off that. Those also have links to other information around sockets and similar.

Google searches for "NUMA" and "FreeBSD" will bring up mailing list threads that cover the different projects being undertaken to improve the CPU affinity and thread locality and all that jazz.

Sure, it would be nice if the OP had posted links to the info, but it's not like the information is secret or hard to find.

about three weeks ago
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Raspberry Pi-Compatible Development Board Released

phoenix_rizzen That's not a Exynos SoC (47 comments)

What makes this thing truly "Raspberry Pi-compatible" is that it uses the same Broadcom SoC. There's nothing Samsung about this thing.

about a month ago
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Which Is Better, Adblock Or Adblock Plus?

phoenix_rizzen Re:I use both (436 comments)

AdBlock+ is available for Chrome as well. Why not use the same product everywhere?

about a month ago
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A Fictional Compression Metric Moves Into the Real World

phoenix_rizzen Re:It really works? (133 comments)

They're talking about the Score, not the compression algorithm. And your link doesn't mention anything about the Score.

about 1 month ago
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Starbuck's Wireless Charging Stations Won't Work With Most Devices

phoenix_rizzen Re:Editors Won't Won't Edit (114 comments)

Maybe they're all at Starbucks (which, by the way, editors, has no apostrophe).

Actually, in the context of the headline, it *does* have an apostrophe, just not where they put it: Starbucks'

After all, the wireless charging mats belong to Starbucks.

about 3 months ago
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The Energy Saved By Ditching DVDs Could Power 200,000 Homes

phoenix_rizzen Re:Imagine how much we're saving already with mail (339 comments)

There are already e-libraries out there that just have computer stations and ebook download terminals. And I believe Apple? was trying to build a couple more.

about 2 months ago
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Ericsson Trial 10Gbps 5G Mobile Broadband Network in Japan

phoenix_rizzen Re:Yay? (53 comments)

Not to mention all the time spent waiting for the 17 different CDN services to respond to download content, all the time spent waiting for the 23 different ad networks to respond to download content, all the time spent waiting for the various DNS servers to respond with the correct IPs, etc.

Sure, the actual downloads of the various bits of data is very fast. But that's the shortest/quickest part of loading a web page. And all the other bits and bobs and bottlenecks are the same, regardless of what speed of network connection you have.

about 4 months ago
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Will the Nissan Leaf Take On the Tesla Model S At Half the Price?

phoenix_rizzen Re:X Miles IS a standard for me (398 comments)

Yes, exactly.

They need to stop with the hybrid crap where there are two drivetrains, and the pure-electric crap with horrible range and non-existent charging networks.

The ultimate EV is one with a gas/diesel generator that does nothing but charge the batteries to provide virtually unlimited range using the existing gas station network.

about 4 months ago
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Will the Nissan Leaf Take On the Tesla Model S At Half the Price?

phoenix_rizzen Still waiting for the EV with a generator (398 comments)

Stick a battery pack that can handle ~150 Km (~100 miles) into the EV. That covers just about everyone's daily city driving.

Then install a small gas or diesel generator into the car. All that generator does is charge the battery. It doesn't power the wheels, it doesn't drive the car, it doesn't to anything except provide electrical power to the car.

That way, you have the means to use the EV for long trips. Need more than ~150 Km range? Fill up the little gas tank and carry on as per normal.

The GM Volt is so close to being the perfect EV. All they have to do is remove the non-electric drivetrain, disengage the gas motor from the wheels, and tune the gas motor to run as a generator, and that's it.

about 4 months ago
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Linus Torvalds Suspends Key Linux Developer

phoenix_rizzen Re:Someone has to be in charge (641 comments)

Except that after years of polite "you need to fix this" requests and no follow-up from Kay ... what do you consider the appropriate response? This isn't the first time Linus has called him out. But it's the final time; the time that broke the proverbial camel's back.

about 5 months ago
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Linus Torvalds Suspends Key Linux Developer

phoenix_rizzen Re:Someone has to be in charge (641 comments)

Kay's been a kernel developer for years, and has clashed with Linux many times in the past, all for the same reasons: Kay patches something, breaks a lot of things, says everyone else has to fix their code to work around the things he broke as it's "not his problem". Linux has finally had enough of that attitude.

about 5 months ago
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USB Reversable Cable Images Emerge

phoenix_rizzen Re:Lighting is decent but not perfect (208 comments)

Those are all issues with the cable and Lightning protocols, not the actual, physical connector.

The problem with MicroUSB and even full-sized USB is that stupid tongue in the middle of the socket that goes inside the plug on the cable. That tongue can be easily broken by moving the device with the cable plugged in. I've snapped that off a phone and a desktop now. And there's no way to fix it without replacing the entire socket ... not easy when it's soldered to the motherboard.

The Lightning socket/plug is going in the right direction. The contacts should be on the outside of the plug on the cable, and along the inside walls of the socket. The plug should be solid (no holes), and the socket should be just a hole (no pins, tongues, or whatnot).

Compare the headphone jack/socket. Connectors around the inner wall of the socket and on the outside of the plug. Plug is solid. Socket is a hole. Impossible to plug it in wrong. Take design cues from that, from the Lightning connector, hell even the old mini Christmast lights got it right.

Pins and tongues inside of sockets that a plug has to go around is just dumb. Didn't we have enough issues with bent pins on VGA/Serial/Parallel/PS2 ports to realise that was the wrong way to do things?

about 5 months ago
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KDE and Canonical Developers Disagree Over Display Server

phoenix_rizzen Re: How are these things related? (202 comments)

You were going on about how X11-over-SSH is so slow, and using VNC is so much better/faster as there's no SSH in the way.

I was saying that SSH is not slow, as we use VNC-over-SSH all the time.

And that X11-over-SSH is not slow, as we use the NX Client all the time (which is X11-over-SSH).

X11 by itself can be very slow over the network. But it doesn't have to be (just look at NX as an example).

Thus, doing things in a similar way to X11 doesn't mean it will be inherently slow.

about 5 months ago

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