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pcheliniy / pprof.md
Created June 27, 2024 13:07 — forked from slok/pprof.md
Go pprof cheat sheet

Enable profiling

Default http server

import (
    _ "net/http/pprof"
    "net/http"
)
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pcheliniy / latency.txt
Created December 7, 2018 11:10 — forked from jboner/latency.txt
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