asteroza + load   78

Sorta like progressive JPEG's, but for your whole site?
webdev  progressive  image  load  hash  blur  blurry  picture  photo  software 
10 weeks ago by asteroza
facebookincubator/dhcplb: dhcplb is Facebook's implementation of a load balancer for DHCP.
Technically it's a load balancer, but their newer version dispense with the Kea DHCP server entirely and serve IP's themselves.
DHCP  server  load  balancer  facebook  opensource  software  go 
may 2019 by asteroza
github/glb-director: GitHub Load Balancer Director and supporting tooling.
bare metal load balancer software, uses rendezvous hashing to deal with fill/draining proxy pool
bare  metal  load  balancer  software  networking  loadbalancing  opensource  github  rendezvous  hashing  DPDK 
august 2018 by asteroza
crossbar-examples/benchmark/web at master · crossbario/crossbar-examples
So, WAMP currently is single box limited in the opensource stuff, but it appears the multicore support is getting to linear improvements, so just get a bigger box. However, the current recommendation seems to be to use different realm websocket URI's for a L4 load balancer, then the new WAMP WS reverse proxy, then dump to individual router/workers. So, if you can segment by customer group for the realms, you get some distribution, though lopsided.
WAMP  crossbar  websocket  reverse  proxy  load  balancing  webdev  programming  development 
january 2018 by asteroza
Linkerd does traffic management, this does that plus more policy control (layer 7 proxy and management)
Istio  alternative  linkerd  devops  container  VM  management  software  control  plane  traffic  policy  circuit  breaker  coordination  kubernetes  orchestration  cloud  service  mesh  routing  network  networking  proxy  load  balancer  analytics  metrics  monitoring  platform  microservice  security  Delicious 
may 2017 by asteroza
This allows you to push updates to an app via a javascript bundle, so you can live update apps after clearing app store approval. Used by the Not Hot Dog app to pull in TensorFlow neural network bundles (with the TensorFlow mobile module tweaked to load NN from the JS bundle)
microsoft  react  native  javascript  external  load  app  update  package  opensource  software  Delicious 
may 2017 by asteroza
nginx-module-sysguard/ at master · vozlt/nginx-module-sysguard
Nginx level (rather than at the app layer) load average sensor monitoring/throttling, a public port of a module used by Alibaba
nginx  load  average  throttle  throttling  monitoring  webdev  sysadmin  tools  utilities  Delicious 
may 2017 by asteroza
Announcing Linkerd 1.0
API proxy with service discovery that also runs as a service message bus, could for kubernetes cloud deployments where your instance fleet is pretty dynamic. Adds another layer so you can dynamically route and grab analytics.
service  load  balancer  balancing  mesh  cloud  native  kubernetes  system  management  sysadmin  webdev  programming  development  server  software  discovery  Delicious 
april 2017 by asteroza
Through the Google Glass: The impact of heads-up displays on visual attention | ...
An interesting takeaway is the thesis that HUD notifications compete for language processing time in the visual cortex due to unconscious tendency to process language. This might imply text notifications are worse than iconography, but what about situations where single word characters exist like in japanese/chinese? Is that language processing, or iconography pattern matching?
HUD  HMD  cognitive  load  psychology  HCI  human  user  interface  design  UX  Delicious 
november 2016 by asteroza
richardelling/tools · GitHub
some dtrace scripts for examining loads on storage servers by client, for iSCSI and a few other protocols, plus ZIL usage.
iscsi  load  tracing  dtrace  trace  sysadmin  tools  utilities  software  solaris  opensolaris  illumian  illumnos  ZFS  NDS  CIFS  ZIL  statistics  Delicious 
december 2013 by asteroza
Electricity and Power Storage - Ares North America
Someone is finally getting around to implementing heavy electric trains on long grades as a gird energy storage system. Though admittedly the current system is smaller scale and for load leveling a wind power plant, and using narrow gauge rail along with a third rail in rural settings seems like a poor choice in the long term. Concept is sound, but having individual motor/generator cars is an interesting compromise. As long as the primary weight can be provided by cheap gravel, I suppose it doesn't matter.
railroad  electric  green  potential  leveling  railway  ARES  rail  grid  train  power  generator  load  energy  storage  gravity  concrete  gravel  battery  Delicious 
august 2013 by asteroza
Network Connectivity — Drivers and software for Intel® PRO/1000 Gigabit Server Adapters
There is the thin possibility of using this for e1000 type network cards in VMware VM's, to load balance across multiple vSwitches
software  e1000  balancing  intel  driver  windows  load  adapter  network  NIC  ANS  VMware  Delicious 
may 2013 by asteroza
Simulation 360 - Simulation & Cloud Computing Capabilities - Autodesk
Autodesk is now providing cloud engineering simulation services, so small engineering shops can do full sims quickly at a reasonable cost.
Autodesk  cloud  engineering  simulation  service  fluid  thermal  mechanical  stress  dynamic  load  cyclic  distribution  vibration  nonlinear  radiant  heat  pressure  drop  ventilation  engineering  Delicious 
september 2012 by asteroza
Japan firm unveils robot suit for nuclear workers
Congratulations Cyberdyne, you have now found the motherlode of government funding sources for development. Because who can really argue with increasing the safety of radiation workers by making a load bearing exoskeleton to carry that heavy tungsten rad shield? Now if they could only join the battery pack of HAL with those human cooling suits NASA made a while back for kids with body heat cooling disorders, you might have workers that won't keel over from heat stroke at Fukushima.
Cyberdyne  HAL  exoskeleton  robot  robotic  powered  suit  radiation  shield  vest  protection  defense  load  bearing  Delicious 
november 2011 by asteroza
20110912_presentation_e.pdf (application/pdf Object)
So Son's saying what a lot of people have been talking about for a long time now, but he makes for a good spokesman. 4GW offshore HVDC supergrid intertie in the sea of japan, pan-asia links similar to DESERTEC, independent ISO/TSO to break the stranghold of regional oligopolies in japan and have fair feed-in tariff structures without wasted energy. No calls for grid energy storage though, though if a true supergrid is operating, it can be reduced or eliminated if the timezone spread is far enough. Also trotting out the national energy security horse too.
JREF  japan  energy  policy  pan-asia  asia  supergrid  grid  offshore  power  transmission  network  green  peak  shift  load  balance  independent  system  operator  ISO  TSO  cable  HVDC  marine  ocean  subsea  submarine  intertie  interconnector  national  infrastructure  security  independence  resource  Delicious 
september 2011 by asteroza
Update: Gigawatt-Scale Energy Storage by Rubenius : Greentech Media
Something fishy about about this gigawatt year level energy storage plan.
gird  energy  storage  NaS  molten  salt  battery  NGK  green  load  shifting  peak  peaking  power  arbitrage  Mexico  Delicious 
may 2011 by asteroza
Xtreme Power
Apparently this is some oddball battery with a fiberglass mat with a metal surface treatment, but the chemistry is based on lead acid yet is a dry cell. The company claims it's all solid too.
utility  grade  power  storage  fiberglass  mat  lead  acid  battery  green  energy  load  leveling  Delicious 
april 2011 by asteroza
TUM - Higher energy yield with torque vectoring gears
Basically it's a torque load leveler, using an electric motor (more like a flywheel really) filling in for when the rotor input is less than ideal for the synchronous generator, and using the electric motor as a generator when the rotor input is too much for the synchronous motor. Which works if you are waffling around a particular RPM on the main rotor. But if the wind loads are too erratic, or more particularly stay consistently below the ideal RPM of the generator, the parasitic power loss of the booster electric motor is going to hurt efficiency. I guess the stance is that since renewables have high capital costs, anything that reduces those costs (in this case a slightly more expensive transmission in exchange for a vastly cheaper synchronous generator with very little power conditioning equipment and no AC/DC/AC rectifier/inverter) is attractive to get project costs low, even if it hurts output.
wind  turbine  torque  vectoring  transmission  load  balancer  green  energy  synchronous  power  generator  automotive  technology  Delicious 
february 2011 by asteroza
US Navy develops toss-proof robot crane • The Register
This has interesting applications outside the ship cargo lift arena, such as automating load control in convential land cranes in windy environments. Maybe applicable to helicopter slung loads too?
Navy  robot  robotic  cargo  handling  crane  LVI  Lo/Lo  large  vessel  interface  lift  ship  marine  ocean  transportation  automatic  load  object  stability  control  motion  compensation  tracking  ISO  container  Delicious 
june 2010 by asteroza
Successful wind tunnel test of controllable rubber trailing edge flap for wind turbine blades
Neat trick using pneumatically/hydraulically deformable rubber trailing edge flaps on wind turbine blades to control flow in gusty conditions
CRTEF  controllable  rubber  trailing  edge  flap  variable  deformable  spoiler  wind  turbine  blade  high  efficiency  control  gust  load  dump  aerodynamics  research  airfoil  Delicious 
february 2010 by asteroza
Toshiba to Build Next-gen Electric Power System in Japan -- Tech-On!
Mixed hybrid powerplant testbed in Okinawa. Solar, wind, assorted batteries connecting to existing gas turbine and thermal (coal? combined cycle?) powerplant setup.
Japan  Okinawa  green  energy  powerplant  testbed  solar  cell  photovoltaic  wind  turbine  gas  thermal  sodium  sulfur  battery  storage  load  demand  leveling  Delicious 
february 2010 by asteroza
Asiajin » KDDI To Increase Tribrid Powered Cellphone Base Stations To Reduce CO2 Emissions
Interesting mixed use methodology, where a cellphone basestation is grid backed, but is operated primarily as a power price curve following battery backed power supply with solar assist, the aim being to reduce grid load during peak hours and to reduce the overall grid power consumption costs by going after the cheap power at night, followed by renewable energy assist during the day via solar. Reminds me of that new basestation design (By Ericsson?) those is a modular concrete tube tower with the built-in vertical axis wind turbine. The tube tower is probably a better choice in urban environments due to smaller land footprint ( I don't think you could get a good solar array size on the top cap of the tube), but the tribrid with solar isn't a bad idea in more rural settings, though at that point you might as well throw in a VAWT.
Tribrid  hybrid  power  storage  handling  system  cellphone  basestation  KDDI  japan  green  energy  solar  panel  battery  assist  grid  load  peak  shaving  Delicious 
october 2009 by asteroza
AWS Import/Export
Can you hear Iron Mountain pooping in their pants? Sure, you gotta use your own hardware to move the data, but this basically completes the trifecta of your data being everywhere, editable at anytime, at on-demand prices. Finally harnessing the bandwidth of a station wagon full of tapes barreling down a highway, there's really not many reasons left to not get all your data into the cloud.
amazon  AWS  S3  physical  data  import  export  transfer  service  uploading  downloading  offsite  load  migration  backup  disaster  recovery  cloud  grid  computing  storage  sneakernet  upload  Delicious 
may 2009 by asteroza
meisner-asplos09.pdf (application/pdf Object)
Idea here is to use near consumer grade (500W) cheap power supplies with fast response factors, coupled with aggressive OS sleep software (and maybe SSD's to cut back on the response start lag of spinning disks), to create server arrays that can shed power load to follow computational demand load. Easier to turn off single power supplies working in an array set to cut power than to tweak a single big monolithic power supply.
sharing  green  energy  power  datacenter  supply  reduction  server  high  efficiency  speed  load  response  rails  demand  redundant  consumption  array  PowerNap  inexpensive  filetype:pdf  media:document  Delicious 
march 2009 by asteroza

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