asteroza + performance   352

Multi Actuator Technology: A New Performance Breakthrough | Seagate Blog
MACH.2 HDD's uses single pivot dual actuator setups so only one head per platter, but half the heads are independent from the other half. As opposed to those old Conner Chinook drives with twin actuators and dual heads. Dual heads would get more reads, but apparently the heads weren't stiff enough, causing vibration issues and early death.
Seagate  dual  actuator  HDD  hard  disk  storage  performance  hardware  electronics  devices 
13 days ago by asteroza
SOLIDteknics USA
Makers of fancy pants wrought iron skillets (behave like a higher performance cast iron with less weight), and now some sort of wrought monobloc ferritie non-nickel stainless steel pans with very high heat conductivity. Hrm, I wonder if the stainless they are using has any relation to the new specialist stainless available now, such as the stainless being used for SpaceX's starship...
cooking  pan  skillet  stainless  steel  wrought  iron  high  performance  conductivity  materials  science  research  technology  monobloc  non-pressed 
9 weeks ago by asteroza
Intel Optane SSD/IMDT Microbenchmark
That sorta optimal 4:1 Optane:RAM size ratio is interesting
Intel  Optane  IMDT  LMDB  high  performance  SSD  in-memory  database 
10 weeks ago by asteroza
Storage Alignment and VMFS Block Sizes |VMware Communities
Note NTFS will hate you for using anything other than 4K for anything other than a dedicated partition for a database. Many backup systems expect 4K, and boot partition usually must be 4K, and NTFS native (deflate) compression (up to 64GB but really 40GB sized files) only works on 4K.
VMware  ESXi  VMFS  VMDK  SAN  windows  NTFS  filesystem  block  alignment  size  matching  performance  storage  sysadmin  tips  tricks 
october 2018 by asteroza
djbsort: Intro
New constant time (relative to array size) sort algorithm using AVX2 for int32
algorithm  sort  sorting  performance  AVX2  opensource  programming  development 
july 2018 by asteroza
Every Silver Lining Has a Cloud - ACM Queue
"Some providers now have something called Metal-as-a-Service, which I really think ought to mean that an '80s metal band shows up at your office, plays a gig, smashes the furniture, and urinates on the carpet, but alas, it's just the cloud providers' way of finally admitting that cloud computing isn't really the right answer for all applications."
humor  bare  metal  MaaS  cloud  performance  server 
june 2018 by asteroza
NVCC :: CUDA Toolkit Documentation
So, apparently NVCC won't bring out the big guns on optimization due t a conservative backwards compatibility stance, so you need to set it to sm_60 or higher to see the freakish optimizations. As well as freakish power consumption...
Nvidia  CUDA  compile  option  performance 
may 2018 by asteroza
stealth/odd: optimized dd
dd using CPU specific pipelining and mmap tricks to speed up copies
linux  CLI  disk  copy  command  optimization  high  performance 
may 2018 by asteroza
stealth/grab: experimental and very fast implementation of a grep
parallel variant of grep optimized for SSD's and large directory tree searches
grep  variant  parallel  search  string  match  SSD  optimization  CLI  high  performance  linux 
may 2018 by asteroza
Customizing Windows 10 user experience — Decent Security
Using a GPO to reduce CPU/GPU load and make the desktop snappier/cleaner
windows  10  sysadmin  tips  tricks  desktop  performance 
may 2018 by asteroza
High IO latency from simple file copy? |VMware Communities
Hrm, if iscsi max burst is 16MB, setting disk max IO also to 16MB might align...
VMware  ESXi  iSCSi  performance  tuning  disk  IO 
july 2017 by asteroza
Swarm64 | Lower Complexity and Lower Cost
So their magic sauce is a FPGA image that does SQL offload acceleration, currently implemented as an Altera PCIe card. But when Intel moves to Xeons with integrated Altera FPGA's, they'll be able to work a CPU/main memory speeds. Not like they are slow currently.
FPGA  database  SQL  accelerator  high  performance  altera  Delicious 
april 2017 by asteroza
Cap'n Proto: Introduction
Alternative to Protocol Buffers library, which gets speedups from no encoding/decoding and a zero copy design. Used within Cloudflare?
protocol  serialization  buffers  protobuf  CapnProto  library  ebdev  programming  development  RPC  framework  high  performance  Delicious 
march 2017 by asteroza
ripgrep is faster than {grep, ag, git grep, ucg, pt, sift} - Andrew Gallant's Bl...
epic documentation why ripgrep is a great grep alternative (for UTF-8, not true unicode per se...)
grep  alterantive  high  performance  text  search  command  line  UTF-8  Delicious 
september 2016 by asteroza
C4: the continuously concurrent compacting collector - c4_paper_acm.pdf
Lock free high performance low latency GC, currently used in the Zing java JVM by bankers. Requires 100x page remapping performance compared to page allocation, but they are achieving something like 700TB/s remapping so they are doing pretty good.
algorithm  research  software  C4  low  latency  garbage  collector  concurrent  high  performance  collection  programming  development  lockfree  Delicious 
july 2016 by asteroza
Storage Performance Development Kit
In the vein of performance differences between FreeBSD and Linux in networking, this is an alternative to libaio.
userspace  userland  user  mode  storage  driver  framework  alternative  libaio  high  performance  poll  software  NVMeOF  iSCSI 
july 2016 by asteroza
SSD VPS Servers, Cloud Servers and Cloud Hosting by Vultr -
Good price, and notable for exclusively using ISO installs. Which means spinning up a new VM is slow, but you can go full custom (like Kali)
high  performance  SSD  VPS  VM  hosting  server  service  Delicious 
may 2016 by asteroza
Huh, repurposing berkley packet filters for performance tracing...
dynamic  performance  tracing  tools  utilities  software  linux  Delicious 
april 2016 by asteroza
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