diegocg - Slashdot User

Submission + - Linux 5.4 released

Submitted by diegocg on Monday November 25, 2019 @01:20PM

diegocg writes: Linux 5.3 has been released, featuring the new kernel lockdown mode, intended to strengthen the boundary between UID 0 and the kernel; virtio-fs, a high-performance virtio driver which allows a virtualized guest to mount a directory that has been exported on the host; fs-verity, for detecting file tampering, like dm-verity, but works on files rather than block devices; dm-clone, which allows live cloning of dm targets; two new madvise() flags for improved app memory management on Android, support for new Intel/AMD GPUs, support for the exfat file system and removing the experimental status of the erofs file system; a new haltpoll cpuidle driver and governor that greatly improves performance for virtualized guests wanting to do guest-side polling in the idle loop; and blk-iocost, a new cgroup controller that attempts to calculate more accurately the cost of IO. As always, many other new drivers and improvements can be found in the changelog.

Submission + - Linux 5.3 released

Submitted by diegocg on Sunday September 15, 2019 @06:40PM

diegocg writes: Linux 5.3 has been released. This release includes support for AMD Navi GPUs; support for the umwait x86 instructions that let processes wait for short amounts of time without spinning loops; a 'utilization clamping' mechanism that is used to boost interactivity on power-asymmetric CPUs used in phones; a new pidfd_open(2) system call that completes the work done to let users deal with the PID reuse problem; 16 millions of new IPv4 addresses in the 0.0.0.0/8 range are made available; support for Zhaoxin x86 CPUs; support Intel Speed Select for easier power selection in Xeon servers; and support for the lightweight hypervisor ACRN, built for embedded IoT devices. As always, many other new drivers and improvements can be found in the changelog.

Submission + - Linux 5.2 released

Submitted by diegocg on Monday July 08, 2019 @03:32AM

diegocg writes: Linux 5.2 has been released. This release includes Sound Open Firmware, a project that brings open source firmware to DSP audio devices; open firmware for many Intel products is also included. This release also improves the Pressure Stall Information resource monitoring to make it usable by Android; the mount API has been redesigned with new syscalls; the BFQ I/O scheduler has gained some performance improvements; a new CLONE_PIDFD flag lets clone(2) return pidfs usable by pidfd_send_signal(2); Ext4 has gained support for case-insensitive name lookups; there is also a new device mapper target that simulates a device that has failing sectors and/or read failures; open source drivers for the ARM Mali t4xx and newer 6xx/7xx have been added. Many other new drivers, features and changes can be found in the changelog.

Submission + - Linux 5.1 released

Submitted by diegocg on Monday May 06, 2019 @09:32AM

diegocg writes: Linux 5.1 released has just been released. The main feature in this release is io_uring, a high-performance interface for asynchronous I/O; there are also improvements in fanotify to provide a scalable way of watching changes on large file systems; it also adds a method to allow safe delivery of signals in presence of PID reuse; persistent memory can be used now as hot-plugabble RAM; Zstd compression levels have been made configurable in Btrfs; there is a new cpuidle governor that makes better power management decisions than the menu governor; all 32 bit architectures have added the necessary syscalls to deal with the y2038 problem; and live patching has added support for creating cumulative patches. There are many other features and new drivers in the changelog.

Submission + - Linux 4.19 released

Submitted by diegocg on Monday October 22, 2018 @09:36AM

diegocg writes: Linux 4.19 has been released. This release adds support for the CAKE network queue management to fight bufferbloat; support for guaranteeing minimum I/O latency targets for cgroups; experimental support for the future Wi-Fi 6 (802.11ax-drafts); memory usage for overlayfs users has been improved; a experimental EROFS file system optimized for read-only use; a new asynchronous I/O polling interface; support for avoiding unintentional writes to an attacker-controlled FIFO or regular files in world writable sticky directories; support for a Intel feature that locks part of the CPU cache for an application; and many other improvements and new drivers. For more details, see the complete changelog

Submission + - Linux 4.14 has been released

Submitted by diegocg on Sunday November 12, 2017 @04:23PM

diegocg writes: Linux 4.11 has been released. This release adds support for bigger memory limits in x86 hardware (128PiB of virtual address space, 4PiB of physical address space); support for AMD Secure Memory Encryption; a new unwinder that provides better kernel traces and a smaller kernel size; support for the zstd compression algorithm has been added to Btrfs and Squashfs; support for zero-copy of data from user memory to sockets; support for Heterogeneous Memory Management that will be needed in future GPUs; better cpufreq behaviour in some corner cases; faster TBL flushing by using the PCID instruction; asynchronous non-blocking buffered reads; and many new drivers and other improvements. Here is the full list of changes.

Submission + - Linux 4.5 released

Submitted by diegocg on Monday March 14, 2016 @03:01AM

diegocg writes: Linux 4.5 has been released. This release adds a new copy_file_range() system call that allows to make copies of files without transferring data through userspace; experimental Powerplay power management for modern Radeon GPUs; scalability improvements in the Btrfs free space handling; support GCC's Undefined Behavior Sanitizer (-fsanitize=undefined); Forwarded Error Correction support in the device-mapper's verity target; support for the MADV_FREE flag in madvise(); the new cgroup unified hierarchy is considered stable; scalability improvements for SO_REUSEPORT UDP sockets; scalability improvements for epoll, and better memory accounting of sockets in the memory controller. There are also new drivers and many other small improvements. There are also new drivers and many other small improvements. Here is the full list of changes

Comment For a more complete changelog: (Score 5, Informative) 132

by diegocg on Sunday January 10, 2016 @11:26PM (#51275729) Attached to: Linux Kernel 4.4 LTS Officially Released

For a more complete changelog:

http://kernelnewbies.org/Linux...

Submission + - Linux 3.15 Released

Submitted by diegocg on Saturday June 14, 2014 @05:06PM

diegocg writes: Linux kernel 3.15 has been released. This release a href="http://linux-beta.slashdot.org/story/14/04/12/1833244/linux-315-will-suspend-resume-much-faster">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, FUSE write performance has been improved, 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; new drivers; and many other small improvements. Here's the full list of changes.

Submission + - Germany's renewable plan faces popular resistance to new power links

Submitted by diegocg on Thursday February 13, 2014 @05:20PM

diegocg writes: Germany has outlined the details of the new 800km/497miles high voltage power link that will transport renewable power from the north to the industrial south. It is part of the Energiewende plan to replace nuclear power and most of other non-renewable energy sources with renewable sources in the next decades. However, the power link is facing a problem: popular resistance from neighbours affected.

Comment Re:Just my luck... (Score 1) 141

by diegocg on Monday January 20, 2014 @09:57AM (#46012717) Attached to: Linux 3.13 Released

Fortunately the syntax for the new nft utility seems to be easier to understand http://kernelnewbies.org/nftables_examples

Submission + - Linux 3.13 released 1

Submitted by diegocg on Sunday January 19, 2014 @11:36PM

diegocg writes: Linux kernel 3.8 has been released. This release includes are nftables, the successor of iptables, a revamp of the block layer designed for high-performance SSDs, a power capping framework to cap power consumption in Intel RAPL devices, improved squashfs performance, AMD Radeon power management enabled by default and automatic AMD Radeon GPU switching, improved NUMA and hugepage performance , TCP Fast Open enabled by default, support for NFC payments, support for the High-availability Seamless Redundancy protocol, new drivers and many other small improvements. Here's the full list of changes

Comment Re:Poor Mattthew Garrett (Score 0) 88

by diegocg on Thursday October 03, 2013 @01:40PM (#45027103) Attached to: Ex-Red Hat Employee Matthew Garrett Comments On the State of XMir

I don't see where is he "shitting" on Canonical. It's obvious that he has done quite a lot of research before writing it (he has actually read the code), and he is pretty neutral about Canonical, he is just points outs facts. It's a good post.

Which makes me think that it's you who is butthurt, and the one shitting on other people. In fact, I wouldn't be surprised if you hadn't read the post before writing your comment.

Submission + - Firefox takes the performance crown from Chrome

Submitted by diegocg on Tuesday July 02, 2013 @09:51AM

diegocg writes: Recent browser benchmarks are showing surprising results: in "a geometric mean of all four performance-based categories: Wait Times, JavaScript/DOM, HTML5/CSS3, and Hardware Acceleration", Firefox 22 "pulls off an upset, replacing the long-time performance champion Google Chrome 27 as the new speed king" (other browsers benchmarked were IE10, Opera 12, and Opera Next). With these results, and Firefox developers focusing in fixing the UI sluggishness, can this be the start of a Firefox comeback, after years of slow market share decline?.

Submission + - Linux 3.8 released

Submitted by diegocg on Monday February 18, 2013 @09:00PM

diegocg writes: Linux kernel 3.8 has been released. This release includes support in Ext4 for embedding very small files in the inode, which greatly improves the performance for these files and saves some disk space. There is also a new Btrfs feature that allows to replace quickly a disk, a new filesystem F2FS optimized for SSDs, support of filesystem mount, UTS, IPC, PID, and network namespaces for unprivileged users, accounting of kernel memory in the memory resource controller, journal checksums in XFS, an improved NUMA policy redesign and, of course, the removal of support for 386 processors. Many small features and new drivers and fixes are also available. Here's the full list of changes.

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