Skip to content

Instantly share code, notes, and snippets.

View NiGhTTraX's full-sized avatar
🌶️

Andrei Picus NiGhTTraX

🌶️
View GitHub Profile
function! s:start_delete(key)
let l:result = a:key
if !s:deleting
let l:result = "\<C-G>u".l:result
endif
let s:deleting = 1
return l:result
endfunction
function! s:check_undo_break(char)
@jboner
jboner / latency.txt
Last active March 28, 2024 15:49
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD