Guest post by Linux kernel 3.15 has been released. This release resumes much faster in systems with hard disks, it adds support for cross-renaming two files atomically, it adds new fallocate(2) modes that allow to remove the range of a file or set it to zero, it adds a new file locking API, the memory management adapts better to working set size changes, it improves FUSE write performance, it adds support for the LZ4 algorithm in the zram memory compressor, it allows to load 64-bit kernels from 32-bit EFI firmware, it adds support for x86 AVX-512 vector instructions; it also adds new drivers; and many other small improvements. Here’s the full list of changes.
Maybe thats optimistic?
It depends how many of the new features and fixes are backportable to the kernel version that shipped with Fedora 19 and RHEL7.
Can you pop in an updated kernel, as you can with Android? If so, then what’s the big fuss?
Well, yes you can install a new kernel fairly easily. However, a stable well tested kernel is one of the huge selling points of RHEL. You’d be losing that, and access to all of the security updates rhel provides. Plus thed probably refuse to honor the support contract if you did this. Oh and you’d probably break any binary drivers you had for any hardware.
Edited 2014-06-18 00:01 UTC
If you are running binary drivers on a LINUX box, in this day and age, you seriously don’t GET IT.
Please use Windows and leave us alone.
So I take it you’re not running wifi?
Don’t you know? Linux is about choice.
And if you don’t choose right, you shouldn’t be using it.
I don’t recall anyone saying that about Linux. They say that about open source software in general, but not Linux specifically. You maybe confusing open source with Linux with that statement.
Lots of people have said that over the years.
What’s more interesting is the hatred people have for that phrase lately. (Which I only just discovered).
Edited 2014-06-18 03:07 UTC
yeah, you know who really hates that phrase? Linux Devs. Its like an entitlement that some users have, that the devs make kernel and userland features that allow them to do whatever they want without having to contribute any effort or resources themselves.
See the whole debian init discussion. Its an appeal to authority, without much logic behind it. A discussion ender. Its like the linux version of Godwin.
http://islinuxaboutchoice.com/
Did you fall out of a time warp from 2007? Broadcom is the only major vendor that even ships a proprietary Linux driver anymore, and IIRC they’re migrating away from it to open-driver-proprietary-firmware the way Intel’s wifi driver works.
So it needs to be open-source, except when it doesn’t. Cool.
The i386/AMD64 driver is open sauce, the firmware running on the wifi chip is binary only. Just like in the olden days, except at that time the firmware would be loaded from an EPROM, and now it’s loaded from disk.
I’m sure plenty of people would like to have source code for the firmware, but few people would want to need to compile it.
Exactly. Besides, having it loaded from the OS means it’s theoretically possible to replace it later if you don’t like the way it’s working. If it’s burned in to an EEPROM then it’s pretty much permanent.
As far as I know, every driver on Linux is binary. You certainly can’t run drivers from source.
Yes you can, with an interpreter. OK ok, it’ll runs 100x times slower, -BUT- you won’t need binary blobs anymore.
Wait, how to run the interpreter’s sources ?
Kochise
It’s morons like you that give our community a bad name.
Please use windows and leave us alone.
Edited 2014-06-18 08:28 UTC
I wasn’t saying that running binary drivers was a *good* idea. Just that some people do, and those would be affected by a large kernel change jump in RHEL.
Although, really, even using a source based kernel driver might have issues if its not in the kernel tree. I’ve had to tweak open source drivers just to get them to even compile with newer versions of kernels.
Maybe the version number won’t change, but the point releases of EL7 will certainly import new drivers, features, and bugfixes from the mainstream kernel.
You can install EL6.5 on any recent hardware hardware and it will work well, for example, even though 2.6.32 was “new” in 2009.
My Panther Eurocom 5SE enters ACPI mode in 3 seconds under KDE, and resumes in about 5 seconds.
Before, it wouldn’t even ACPI properly with crashes.
HUGE FUSS to ME because I have about 35 virtual machines coupled together with 63 edges and 5 BGP routers.
Shutting all of that down, then starting it back up everyday was a pisser. (Sort of like going through a disaster recovery procedure every day.)
Leaving it on over night while I sleep was not cheap. (180 Watts).
BONUS: I can Suspend then move the laptop to my second office: Krolls West.
Hacking, a Krolls West Burger and all is heavenly in Hackus Land…that fictional place I go where code fairies tend to my whims.
(Sigh****)
Ummm … you’re announcing bgp from home?
Please forgive my skepticism.
I’m not sure I understood his post either. 180 watts wouldn’t make sense with all of that. I’m guessing he was actually talking about a laptop or something.
Yes, it’s a laptop. well … barely
http://www.techpowerup.com/img/13-09-17/EUROCOM_Panther_5SE_02.jpg
Holy crap, that thing is a beast. I’m guessing he was talking about everything in a virtual environment.
Edited 2014-06-19 15:51 UTC
http://web.eurocom.com/ec/ec_model_config1%281,234,0%29x
Indeed quite the best.
35 VMs + 63 edge routers + 5 BGP routers …
103 VMs … his “laptop” may be a beast … but nope
I’m guessing it’s a lab setup and he’s just announcing internally. Seems a bit excessive for just a lab setup though, especially with the 63 edge routers and boy, that has to be one monster laptop to run 35+ VM’s at once.
Why anyone would have 63 edge routers and 5 BGP routers at home though…now there’s a mystery.
Edited 2014-06-19 11:22 UTC
More importantly … 63 routers for 35 vms …
Maybe he’s making the world’s most excessive virtual switch, where each port is it’s own L3 router?
I don’t know what he means with the thing not ACPI-ing properly either. I guess he must mean power management?
Oh, and OP … 180 watts overnight costs just a few cents … just saying.
I have a V880 i’m using as a buildbox for sparc linux that chews through 2 kws of continuous power … that costs 2.5 euros per 24 hrs …
Edited 2014-06-19 11:28 UTC
At first I thought those were virtual routers but there are less vm’s than routers. On the other hand, I find it a bit unlikely that OP would have 63 hardware routers at home.
Yeah, I guess he means suspend. Works fine for me to suspend with VirtualBox VM’s running though.
I think he means virtual routers. Must be a lab of some sort. Still doesn’t make any sense, unless he’s like trying to simulate peerings accross ISPs or something …
Same here
Still, why would you need to suspend it so that you can run it all the time though. Unless it’s the worlds largest and most hilariously excessive virtual honeypot.
Edited 2014-06-19 11:47 UTC
Mr. Bender of Souls,
It’s so he can be a badass on the internet!