Researchers use Rowhammer bit flips to steal 2048-bit crypto key (h...
▻https://diasp.eu/p/9191177
Researchers use Rowhammer bit flips to steal 2048-bit crypto key | #RAM #RAMBleed #rowhammer
Researchers use Rowhammer bit flips to steal 2048-bit crypto key (h...
▻https://diasp.eu/p/9191177
Researchers use Rowhammer bit flips to steal 2048-bit crypto key | #RAM #RAMBleed #rowhammer
#MariaDB #Memory Allocation - MariaDB Knowledge Base
▻https://mariadb.com/kb/en/library/mariadb-memory-allocation
Allocating RAM for MySQL - The short answer
If using just MyISAM, set key_buffer_size to 20% of available RAM. (Plus innodb_buffer_pool_size=0)
If using just InnoDB, set innodb_buffer_pool_size to 70% of available RAM. (Plus key_buffer_size = 10M, small, but not zero.)
Rule of thumb for tuning mysql:
– Start with released copy of my.cnf / my.ini.
– Change key_buffer_size and innodb_buffer_pool_size according to engine usage and RAM.
– Slow queries can usually be ’fixed’ via indexes, schema changes, or SELECT changes, not by tuning.
– Don’t get carried away with the query cache until you understand what it can and cannot do.
– Don’t change anything else unless you run into trouble (eg, max connections).
– Be sure the changes are under the [mysqld] section, not some other section.
The 20%/70% assumes you have at least 4GB of RAM. If you have a tiny antique, or a tiny VM, then those percentages are too high.
Now for the gory details. (NDB Cluster is not discussed here.)
Entroware Unleash Hades, A Powerful Linux Workstation
▻https://www.omgubuntu.co.uk/2019/01/entroware-hades
British Linux computer company Entroware has unveiled its latest Linux-powered offering — and it’s something of a beast! The Entroware Hades is the company’s first workstation PC to offer AMD processors and multi-GPU configurations. The base model comes equipped with an octa-core AMD Ryzen 1900X, Nvidia GeForce GT 1030 (2GB) and 16GB RAM and a 120GB SSD. […] This post, Entroware Unleash Hades, A Powerful Linux Workstation, was written by Joey Sneddon and first appeared on OMG! Ubuntu!.
How to convert a #website into an #android app from scratch?
▻https://hackernoon.com/how-to-convert-a-website-into-an-android-app-from-scratch-de19c84a5801?s
In this tutorial, we will learn How to Convert a Website into an Android Application using Android Studio.If you do not know anything about Android Studio yet, Don’t worry.We will start everything from scratch.This is how the website looks like:And the Android app, we developed using Android Studio looks like:Before we begin:NOTE: If you downloaded Android Studio and already installed in your system then you can skip the part and Go to direct the coding part.If notDownload Android Studio:Google provides Android Studio for the Windows, Mac OS X, and Linux platforms. You can download this software from the Android Studio homepage.Before downloading Android Studio, make sure your platform meets one of the following requirements:Windows OSMicrosoft Windows 7/8/10 (32-bit or 64-bit)2 GB RAM (...)
Vaex: Out of Core Dataframes for Python and Fast Visualization
▻https://towardsdatascience.com/vaex-out-of-core-dataframes-for-python-and-fast-visualization-12
Wouldn’t it be great if you could load a 1 TB data file instantly.
All this is possible with memory mapping, which is a technique where you tell the operating system that you want a piece of memory to be in sync with the content on disk. It is technically quite similar to a swap disk. If a piece of memory isn’t modified, or not used for a while, the kernel will discard it so that RAM can be reused.
Scaling Node.js Socket Server with #nginx and #redis
▻https://hackernoon.com/scaling-node-js-socket-server-with-nginx-and-redis-d19bf5c07fa8?source=r
One of the most interesting topics in back-end development is server scaling and distribution.There are many ways to scale your app and to handle a lot of requests and connections. In this article, we will explain one of the most popular ways of scaling Node.js applications, especially Socket connections.Imagine you have a Node application which receives 300 requests per second. It works fine, but one day the requests count becomes 10 or 100 times more. Then, you will have a big problem. Node applications aren’t meant for handling 30k requests per second (in some cases they can, but only thanks to CPU and RAM).As we know Node is a single thread and doesn’t use the much resources of your machine (CPU, RAM). Anyway, it will be ineffective.You don’t have any guarantee that your application (...)
Silicon Power lance de la RAM DDR4-4133 à seulement 1,4 V
▻https://www.tomshardware.fr/articles/ddr4-dram-barrettes-sticks-tensions,1-68740.html#xtor=RSS-5
De la DDR4-2666 à la DDR4-4133
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS8wL1gvODA2MTQ1L29yaWdpbmFsL1NpbGljb
DDR4 iGame : premières barrettes de RAM signées Colorful
▻https://www.tomshardware.fr/articles/ram-ddr4-stick-rgb-memoire-vive,1-68562.html#xtor=RSS-5
Look agressif et LED RGB
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9ZL1IvODAwODgzL29yaWdpbmFsL2NvbG9yZ
Samsung lance des barrettes UDIMM de 32 Go de RAM DDR4 !
▻https://www.tomshardware.fr/articles/memoire-vive-udimm-desktop-barrette,1-68423.html#xtor=RSS-5
Mais pas très rapides
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS8zLzcvNzk1ODU5L29yaWdpbmFsL3JkaW1tX
Crise à la RAM : L’accord suspendu au référendum des pilotes
▻https://www.emouaten.com/Crise-a-la-RAM-L-accord-suspendu-au-referendum-des-pilotes_a126756.html
L...
Crise sociale à la RAM : 13 vols annulés ce lundi 30 juillet
▻https://www.emouaten.com/Crise-sociale-a-la-RAM-13-vols-annules-ce-lundi-30-juillet_a125875.html
#Le_Fil
RAM: encore des vols annulés samedi
▻https://www.emouaten.com/RAM-encore-des-vols-annules-samedi_a125712.html
#Le_Fil
La RAM épinglée par la Cour européenne pour ses retards
▻https://www.emouaten.com/La-RAM-epinglee-par-la-Cour-europeenne-pour-ses-retards_a125651.html
Alors qu...
La RAM épinglée par la Cour européenne pour ses retards
▻https://www.emouaten.com/La-RAM-epinglee-par-la-Cour-europeenne-pour-ses-retards_a125613.html
Kiosque36...
Tensions sociales à la RAM : 12 vols annulés ce mardi
▻https://www.emouaten.com/Tensions-sociales-a-la-RAM-12-vols-annules-ce-mardi_a125527.html
#Le_Fil
Solving RAM Speculation & Property Rights in #eos
▻https://hackernoon.com/solving-ram-speculation-property-rights-in-eos-631ca10c1970?source=rss--
Evolution’s Development Plan for Resource ManagementAt Evolution, we’ve had the fortune of collaborating alongside the EOS community to propose unique approaches on how to decentralize voting and ensure fair block production. However, due to compute resource limitations and its future impediments on ownership rights as noted by Dan Larimer, we’ve begun the development of a scalable solution to RAM and property rights. RAM is a scarce resource in EOS and its limitations contributed to Dan’s implementation of 3 year limit on asset rights within the EOS constitution. The long term technical constraints of large RAM, CPU, and Bandwidth stakes being trapped within accounts should in no way lead to limits on user’s rights. Even with RAM upgrades by block producers there’s a likely scenario that (...)
RAM inaugure un vol cargo entre Casablanca et Nouakchott en B767-300
▻https://www.emouaten.com/RAM-inaugure-un-vol-cargo-entre-Casablanca-et-Nouakchott-en-B767-300_a1241
#Le_Fil
Computex : de la RAM en DDR-4000 sur Ryzen ! Tous les records de G.Skill
▻https://www.tomshardware.fr/articles/gskill-ddr4-records-computex-2018,1-67720.html#xtor=RSS-5
Records exp(l)osés.
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9PL1QvNzc3MTk3L29yaWdpbmFsL0lNR18yM
Team Group monte sa RAM en DDR4-3466 pour Ryzen 2000
▻https://www.tomshardware.fr/articles/dark-pro-ryzen-3466-dram,1-67599.html#xtor=RSS-5
Bientôt 3600 ?
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS80L0svNzcyNTgwL29yaWdpbmFsL2Rhcmtwc
RAM DDR5 : premières barrettes prototypes en test à 4400 MT/s !
▻https://www.tomshardware.fr/articles/memoire-dram-latence-timing-capacite,1-67517.html#xtor=RSS-5
Le grand public devra encore attendre
▻https://img.purch.com/rc/120x90/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS83L0UvNzcwMDkwL29yaWdpbmFsL1pVQnhMc
Using #redis with Node JS
▻https://hackernoon.com/using-redis-with-node-js-8d87a48c5dd7?source=rss----3a8144eabfe3---4
What is RedisRedis is an in-memory data structure store which can be used as a #database, a cache and a message broker. Redis supports different data structures such as strings, lists, sets, hashes, bitmaps and etc. . Simply Redis uses you RAM to store data which is very fast, however if you reboot your server the values are gone, unless you enable Redis persistence. Good news by default Redis enables persistence mechanism for you (you can disable or configure persistence according to your needs.)Install Redis (Linux)Refer: ▻https://redis.io/downloadDownload, extract and compile Redis with:$ wget ▻http://download.redis.io/releases/redis-4.0.9.tar.gz$ tar xzf redis-4.0.9.tar.gz$ cd redis-4.0.9$ makeThe binaries that are now compiled are available in the src directory. Run Redis with:$ (...)
Nouveau record G.SKill : un kit de RAM DDR4 poussé à 5000 MHz
▻http://www.tomshardware.fr/articles/ddr4-5000-g.skill-memoire-overclocking,1-67190.html#xtor=RSS-100
Record symbolique.
Record : G.Skill pousse sa RAM Trident Z RGB en DDR4-4700 !
▻http://www.tomshardware.fr/articles/g.skill-trident-z-rgb-ddr4-4700,1-66685.html#xtor=RSS-100
Juste pour la gloire
RAM HBM2 Aquabolt : Samsung explose le record de débit
▻http://www.tomshardware.fr/articles/samsung-hbm2-aquabolt-memoire-vitesse,1-66443.html#xtor=RSS-100
A côté, la GDDR5 est une tortue.