asteroza + memory   402

Memory management "more effective" on Windows than Linux? (in preventing total system lockup) : linux
Registering alt sysreq F seems to work as a bypass, if you remember that key combo...
linux  full  memory  OOM  bug  bypass  sysadmin  tips  tricks 
june 2019 by asteroza
cmu-db/peloton: The Self-Driving Database Management System
Exploring concepts in self-optimizing cluster databases, but now dead
automatic  management  self  optimizing  distributed  hybrid  memory  database  tuning 
june 2019 by asteroza
Room-temperature Operation of Low-voltage, Non-volatile, Compound-semiconductor Memory Cells | Scientific Reports
Allegedly "universal memory", using quantum mechanics theories, that could replace both DRAM and flash NAND memory?
NVRAM  universal  memory  computing  hardware  electronics  logic  materials  science  research  technology 
june 2019 by asteroza
RAMBleed
rowhammer is back with a vengence...
DRAM  RAM  ECC  memory  attack  exploit  rowhammer  security  hacking  pentesting 
june 2019 by asteroza
Dumping WDigest Creds with Meterpreter Mimikatz/Kiwi in Windows 8.1 - TrustedSec
WDigest dumps credentials in memory in plaintext. Registry key is normally off, but enabling is easy without reboot, and can use taskmanager to pull memory, so avoids importing mimikatz or similar which can trigger alarms.
plaintext  credential  recory  memory  windows  security  hacking  pentesting  tips  tricks 
april 2019 by asteroza
Saarbrücken research team uses artificial muscles to develop an air conditioner for the future | Universität des Saarlandes
Using nitinol shape memory alloys as the thermal medium/matrix in a thermal wheel rotary air heat exchanger, where the wheel itself is the HVAC system!
rotary  heat  exchanger  thermal  wheel  air  entropy  nitinol  shape  memory  alloy  metal  conditioner  heater  HVAC  mechanical  materials  science  research  technology  cooling  heating 
march 2019 by asteroza
Exergyn®
Power generator using cycling waste heat hot water/cooling water to drive a shape memory alloy wire actuator piston, which drives a hydraulic transmission and power generator. Made a discovery for high cycle ninitol alloy (10 million versus 1 million cycles for regular NT wire) to make the linear actuator work for industrial applications. Uses direct impingement of hot water and cold water to cycle the actuator though...
nitinol  shape  memory  metal  alloy  materials  science  research  technology  wasteheat  power  generator  linear  actuator  piston  hydraulic  transmission  drive  scavenging  harvesting  high  cycle  fatigue  resistance 
march 2019 by asteroza
LMDB
alternative to berkleyDB/SQLite, memory mapped single file DB
LMDB  database  memory  mapped  single  file 
january 2019 by asteroza
Brain’s Positioning System Linked to Memory | Quanta Magazine
Evolution reusing things, so animal navigation being used for higher brain functions perhaps...
brain  biology  memory  navigation  mapping  positioning  learning  education  research 
december 2018 by asteroza
Intel to Support 128GB of DDR4 on Core 9th Gen Desktop Processors
WTF, double height DDR4? Considering most desktop motherboards have the RAM crosswise to airflow, it will become a cooling air blocker!
double  height  DDR4  RAM  memory  UDIMM  hardware  electronics  devices 
october 2018 by asteroza
Sans Forgetica
Making a font harder to read just enough to make the brain pay more attention enough to make it remember the information better.
font  typography  psychology  brain  memory  learning 
october 2018 by asteroza
A multicaloric cooling cycle that exploits thermal hysteresis | Nature Materials
Uses a ring of shape memory alloy, and magnets plus compression rollers to enable a 6 stage cooling system.
shape  memory  metal  alloy  giant  magnetocaloric  refridgeration  cooling  materials  science  research  technology  permanent  magnet 
september 2018 by asteroza
The Register on Twitter: ""Spectre? Psst. Who cares. You need local code execution." *record skip*… "
NetSpectre is a thing now, but slow as hell and needs a very stable network to pull off (15 bits per hour right now...)
spectre  remote  network  memory  read  security  hacking  pentesting  research 
july 2018 by asteroza
New C# Ransomware Compiles itself at Runtime
Dropping locally compiled assembly directly into memory is a nice trick
ransomware  security  hacking  pentesting  C#  memory  compile 
may 2018 by asteroza
matonis/page_brute: Page File analysis tools.
Interesting tool to brute force run YARA rules on a windows page file for forensic artifacts that might not be present elsewhere
memory  forensic  analysis  windows  page  paging  file  YARA  python  security  hacking  pentesting  software  DFIR 
may 2018 by asteroza
Security | DMA | Hacking: Total Meltdown?
So we heard you've got meltdown, so we put meltdown in your meltdown...
PCILeech  DMA  windows  7  meltdown  exploit  privileged  memory  access  security  hacking  pentesting 
april 2018 by asteroza
peewpw/Invoke-BSOD: For when you want a computer to be done - without admin!
adminless forcing a BSOD, ostensibly to get a memory dump of cleartext passwords
powershell  BSOD  memory  dump  security  hacking  pentesting 
april 2018 by asteroza
Demartek Evaluation: HPE 25GbE RDMA Benefits in Virtualized Environments
Wow, so SMB3 when available, shifts into Direct mode, which is effectively a distributed shared memory platform (SMB3DFX)
SMBv3  SMB-Direct  SMB  direct  RDMA  distributed  shared  memory  platform 
march 2018 by asteroza
NSLComm
Interesting deployable antenna reflector using a shape memory polymer for the reflector ribs (so sorta looks like a clam shell), and an active focus subreflector to correct and beam steer.
newspace  deployable  antenna  reflector  space  cubesat  collapsible  folding  shape  memory  polymer 
march 2018 by asteroza
UPMEM
Oh, stuffing RISC cores onto RAM DIMM's for in-situ processing of data in memory (I guess for limited scales of offload)
RISC  RAM  DIMM  memory  compute  hardware  electronics  devices 
december 2017 by asteroza
Superelastic Tire
But don't most shape memory alloys (nickel titanium based) have a critical temperature where they change memory?
NASA  shape  memory  alloy  chainmail  compliant  flexible  metal  nickel  titanium  tire  wheel  space  technology  automotive  research 
november 2017 by asteroza
ademakov/MainMemory: Wannabe Main Memory Database and More
similar to redis event library, but multithreaded/fibered, as an alternative to libev/libuv. Right now, a skeleton multithreaded framework that does minimal memcache interface though, but the skeleton seems complete
multithreaded  fiber  event  library  memory  database  opensource  software  memcached 
july 2017 by asteroza
yahoo/mdbm: MDBM a very fast memory-mapped key/value store.
Larry McVoy claims the version before yahoo fiddled with it was faster, and is in Bitkeeper?
MDBM  memory  mapped  key  value  store  noSQL  database  Delicious 
may 2017 by asteroza
Halo Neuroscience
Allegedly the same tech being tested at DARPA made CCTV monitoring effective for 20 hours, when normal concentration gave out at 20 minutes...
neuropriming  human  cognitive  augmentation  muscle  memory  sports  enhancement  tDCS  cranial  stimulation  Delicious 
april 2017 by asteroza
AnC - VUSec
Busting ASLR on 22 architectures with javascript is not only a stunt hack, but a biting criticism of using randomization as a protection layer when you are already executing unknown code...
ASLR  javascript  attack  memory  security  hacking  pentesting  Delicious 
february 2017 by asteroza
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