3 ms·
Ah nice coincidence. I was trying to estimate how much power was wasted in our compute grid due to poor memory allocation from linux malloc() and came around 1-
by user5994461 6y ago
Ah nice coincidence. I was trying to estimate how much power was wasted in our compute grid due to poor memory allocation from linux malloc() and came around 1-2% of a nuclear power plant.
For those who wonder how come? Poor allocation and fragmentation have a small performance impact that appear to get significant across thousands of cores running the same tasks. That'd make a nice blog post I guess.
- telotortium 6y agoGuess what function performance engineers at Google work on all the time :)
- moldavi 6y agoAnything I can read up on why fragmentation is so expensive? My naive brain keeps saying "why not use a hash map of lists, by size" but I know I'm missing something.