diegocgteleline.es writes: One of the most frequently raised arguments against renewable power sources is that they can only supply a low percentage of the total power because the unpredictability can unstabilize the grid. Spain seem to have proved the contrary: In the last 3 days, the wind power generation records with respect the total demand were beat two times, (in special conditions: a very windy weekend, during nigth): 45% day 5 and 53% (spanish) last night. There was no unstability. How it was done? There's a Control Center that processes meteorologic data from the whole country and predicts, with high certainty, the wind and solar power that will be generated, allowing a stable integration of all the renewable power. You can see a graphic of the record here.
diegocgteleline.es writes: "The Linux kernel v2.6.31 has been released. Besides the desktop improvements and USB 3.0 support mentioned some days ago, there is an equivalent of FUSE for character devices that can be used for proxying OSS sound through ALSA, new tools for using hardware performance counters, readahead improvements, ATI Radeon KMS, Intel's Wireless Multicomm 3200 support, gcov support, a memory checker and a memory leak detector, a reimplementation of inotify and dnotify on top of a new filesystem notification infrastructure, btrfs improvements, support for IEEE 802.15.4, IPv4 over Firewire, new drivers and small improvements. The full list of changes can be found here."
diegocgteleline.es writes: "Valerie Aurora, a linux filesystem developer and ex-ZFS designer, gives in this article a great insight on how Btrfs, the filesystem that will replace Ext4, was created and how it works: "You probably have heard of the cool new kid on the file system block, btrfs. But you might not know much about it beyond a few high-level keywords — copy-on-write, checksums, writable snapshots — and a few sensational rumors and stories — the Phoronix benchmarks, btrfs is a ZFS ripoff, btrfs is a secret plan for Oracle domination of Linux, etc [...] In this article, we'll take a behind-the-scenes look at the design and development of btrfs on many levels — technical, political, personal — and trace it from its origins at a workshop to its current position as Linus's root file system"
diegocgteleline.es writes: A LWN article talks about the adoption of free software in the Valencia Autonomous Community (Spain): "Over the last decade or so there have been multiple reports of governments making the switch to free software. Some have been relatively successful, like Munich, others have been less so. A recent report from Valencia provides a nice look inside the transition to free software that has been going on since 2003. The department manager noted that the biggest problem faced was the "fear of change [...] we have faced up to the challenge with well-laid plans, training and an alternative plan of action just in case"
diegocgteleline.es writes: Linux kernel 2.6.30 has been released. The list of new features include NILFS2, a new log-structured filesystem, a filesystem for object-based storage devices called exofs, local caching for NFS, the RDS protocol which delivers high-performance reliable connections between the servers of a cluster, a new distributed networking filesystem (POHMELFS), automatic flushing of files on renames/truncates in ext3, ext4 and btrfs, preliminary support for the 802.11w drafts, support for the Microblaze architecture, the Tomoyo security MAC, DRM support for the Radeon R6xx/R7xx graphic cards, asynchronous scanning of devices and partitions for faster bootup, the preadv/pwritev syscalls, several new drivers and many other small improvements.
diegocgteleline.es writes: "The Puerto Rico Google web site -the official one, as you can check here- has been defaced (warn: spanish site, translation here). You can still see the defaced site on the cache or in screenshots. To make it worse, right now the site is down, which is not very usual in Google. Is this a local issue, or was this a major security screwup? Is google getting worse w.r.t security?"
diegocgteleline.es writes: "Linus Torvalds has released Linux 2.6.29. The new features include the inclusión of kernel graphic modesetting, WiMAX and AP wifi support, inclusion of squashfs and a preliminary version of btrfs, a more scalable version of RCU, ecryptfs filename encryption, ext4 no journal mode and ocfs2 metadata checksums, improvements to the memory controller, support for filesystem freeze and other features. The full list of changes can be found here"
diegocgteleline.es writes: Here is LWN's eleventh annual timeline of significant events in the Linux and free software world for the year. As always, 2008 proved to be an interesting year, with great progress in useful software that made our systems better. Of course, there were some of the usual conflicts--patent woes, project politics, and arguments over freedom--but overall, the pace of free software progress stayed on its upwardly increasing trend. 2008 was a year that saw the end of SCO--or not--the rise of Linux-based "netbooks", multiple excellent distribution releases, more phones and embedded devices based on Linux, as well as major releases of software we will be using for years (X.org, Python, KDE,...).
diegocgteleline.es writes: Linux 2.6.27 has been released. It adds a new filesystem (UBIFS) for "pure" flash-based storage, the page-cache is now lockless, much improved Direct I/O scalability and performance, delayed allocation support for ext4, multiqueue networking, data integrity support in the block layer, a function tracer, a mmio tracer, sysprof support, improved webcam support, support for the Intel wifi 5000 series and RTL8187B network cards, a new ath9k driver for the Atheros AR5008 and AR9001 chipsets, more new drivers, and many other improvements and fixes. Full list of changes can be found here.
diegocgteleline.es writes: "After three months, Linux 2.6.26 has been released. It adds support for read-only bind mounts, x86 PAT (Page Attribute Tables), PCI Express ASPM (Active State Power Management), ports of KVM to IA64, S390 and PPC, other KVM improvements including basic paravirtualization support, preliminar support of the future 802.11s wireless mesh standard, much improved webcam support thanks to a driver for UVC devices, a built-in memory tester, a kernel debugger, BDI statistics and parameters exposure in/sys/class/bdi, a new/proc/PID/mountinfo file for more accurate information about mounts, per-process securebits, device white-list for containers users, support for the OLPC, some new drivers and many small improvements. Full list of changes here"
diegocgteleline.es writes: "After 3 months, Linus has released Linux 2.6.23. This version includes the new and shiny CFS process scheduler, a simpler read-ahead mechanism, the lguest 'Linux-on-Linux' paravirtualization hypervisor, XEN guest support, KVM smp guest support, variable process argument length, SLUB is now the default slab allocator, SELinux protection for exploiting null dereferences using mmap, XFS and ext4 improvements, PPP over L2TP support, the 'lumpy' reclaim algorithm, a userspace driver framework, the O_CLOEXEC file descriptor flag, splice improvements, a new fallocate() syscall, lock statistics, support for multiqueue network devices, various new drivers and many other minor features and fixes — see the changelog for details"
diegocgteleline.es writes: "Torvalds has released Linux 2.6.21 after months of development. This release improves the virtualization with VMI, a paravirtualization interface that will be used by Vmware. KVM does get initial paravirtualization support along with live migration and host suspend/resume support. 2.6.21 also gets a tickless idle loop mechanism called "Dynticks", built in top of "clockevents", another feature that unifies the timer handling and brings true high-resolution timers. Other features are: bigger kernel parameter-line, support for the PA SEMI PWRficient CPU and for the Cell-based "celleb" Toshiba architecture, NFS IPv6 support, IPv4 IPv6 IPSEC tunneling, UFS2 write, kprobes for PPC32, kexec and oprofile for ARM, public key encription for ecryptfs, Fcrypt and Camilla cipher algorithms, NAT port randomization, audit lockdown mode, some new drivers and many other small improvements."
diegocgteleline.es writes: "After two months of development, Linux 2.6.20 has been released. This release includes two different virtualization implementations: KVM: full-virtualization capabilities using Intel/AMD virtualization extensions and a paravirtualization implementation usable by different hypervisors. Aditionally, 2.6.20 includes PS3 support, a fault injection debugging feature, UDP-lite support, better per-process IO accounting, relative atime, relocatable x86 kernel, some x86 microoptimizations, lockless radix-tree readside, shared pagetables for hugetbl, and many other things. Read the list of changes for more details."
diegocgteleline.es writes: "After two months, Linux 2.6.19 has been released. It includes the clustering GFS2 filesystem, Ecryptfs , the first developer-oriented version of EXT4, support for the Atmel AVR32 architecture, sleepable RCU, improvements for NUMA-based systems, a "-o flush" mount option aimed at FAT-based hotpluggable media devices (mp3), physical CPU hotplug and memory hot-add in x86-64, support for compiling x86 kernels with the GCC stack protection and many other things. You can check the full list of changes in LinuxChanges"