Cheshire Catorpilor

🎯

Focusing

This is a lazy man!

arsham / go_cpu_memory_profiling_benchmarks.sh

Last active August 15, 2025 10:10

Go cpu and memory profiling benchmarks. #golang #benchmark

	go test -run=. -bench=. -benchtime=5s -count 5 -benchmem -cpuprofile=cpu.out -memprofile=mem.out -trace=trace.out ./package \| tee bench.txt
	go tool pprof -http :8080 cpu.out
	go tool pprof -http :8081 mem.out
	go tool trace trace.out

	go tool pprof $FILENAME.test cpu.out
	# (pprof) list <func name>

	# go get -u golang.org/x/perf/cmd/benchstat
	benchstat bench.txt

linusthe3rd / exponentialBackoff.js

Last active June 30, 2022 15:21

	var attempts = 1;

	function createWebSocket () {
	var connection = new WebSocket();

	connection.onopen = function () {
	// reset the tries back to 1 since we have a new connection opened.
	attempts = 1;

	// ...Your app's logic...

jboner / latency.txt

Last active November 2, 2025 13:31

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

bemasher / stack.go

Last active August 19, 2020 10:59

A simple LIFO stack backed by a linked list implemented with golang.