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@rhettre
rhettre / CBAT_limit_orders.py
Last active March 3, 2024 15:32
Place limit orders on Coinbase Advanced Trader for just below/above the spot price for your buys/sells. Executable and automatable in AWS
import http.client
import hmac
import hashlib
import json
import time
import base64
import uuid
from enum import Enum
import math
@jonmorehouse
jonmorehouse / vimrc
Created January 15, 2014 19:09
UUID generator for vim. Inputs a uuid to copy buffer
fu! GenerateUUID()
python << EOF
import uuid
import vim
# output a uuid to the vim variable for insertion below
vim.command("let generatedUUID = \"%s\"" % str(uuid.uuid4()))
EOF
@jboner
jboner / latency.txt
Last active May 3, 2024 15:17
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