Skip to content

Instantly share code, notes, and snippets.

View hnliuzesen's full-sized avatar
💩
Shiting

刘泽森 hnliuzesen

💩
Shiting
  • Mainland China
  • 21:07 (UTC +08:00)
View GitHub Profile
@hnliuzesen
hnliuzesen / .vimrc
Last active December 16, 2023 10:08
colorscheme elflord
" tab spaces
set tabstop=4 softtabstop=4 shiftwidth=4 expandtab
set history=100
set hlsearch
set incsearch
" enable optional plugins
packadd! matchit
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