Skip to content

Instantly share code, notes, and snippets.

View timotheecour's full-sized avatar

Timothee Cour timotheecour

View GitHub Profile
{.experimental: "caseStmtMacros".}
import macros
macro match(n: tuple): untyped =
result = newTree(nnkIfStmt)
let selector = n[0]
for i in 1 ..< n.len:
let it = n[i]
case it.kind
@GULPF
GULPF / stats.txt
Created April 28, 2018 22:05
Nim stdlib usage for top 1000 starred GitHub projects
Number of files that imports the module (~15000 files total)
1 oswalkdir
1 rstgen
1 ftpclient
1 distros
1 strmisc
2 rlocks
2 lenientops
2 unidecode
3 httpserver
@jboner
jboner / latency.txt
Last active November 15, 2024 14:00
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