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bvk / width.go
Created January 12, 2024 11:44 — forked from eNV25/width.go
`wcwidth` implementation for Go. Uses the `unicode` and `golang.org/x/text/width` packages.
package textwidth
import (
"unicode"
"golang.org/x/text/width"
)
// IsComb returns true if r is a Unicode combining character. Alias of:
//
@bvk
bvk / latency.txt
Created January 2, 2016 21:20 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers
--------------------------
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
Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms
Read 4K randomly from SSD* 150,000 ns 0.15 ms