Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
superjan
6 months ago
|
parent
|
context
|
favorite
| on:
Consider using Zstandard and/or LZ4 instead of Def...
Arithmetic coding decodes 1 bit at a time, usually in such a way that you can’t do two bits or more with SIMD instructions. So it will be slow and energy inefficient.
astrange
6 months ago
|
next
[–]
Deompression is limited by memory bandwidth IME, which means that more efficient compression is (almost) always more power-efficient too.
(I don't have numbers for this, but it was generally agreed by the x264 team at one point.)
adgjlsfhk1
6 months ago
|
prev
[–]
this isn't necessarily true. zstd uses an ans which is a type of arithmetic coding which is very efficient to decode
superjan
6 months ago
|
parent
[–]
Nice to learn about. It’s good to know the field has progressed, however the context focused on JPEG, where my point does apply.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
