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@EdwinChan
EdwinChan / nested.py
Last active October 20, 2023 07:02
Trick for using multiprocessing with nested functions and lambda expressions
import concurrent.futures
import multiprocessing
import sys
import uuid
def globalize(func):
def result(*args, **kwargs):
return func(*args, **kwargs)
result.__name__ = result.__qualname__ = uuid.uuid4().hex
setattr(sys.modules[result.__module__], result.__name__, result)
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active May 7, 2024 17:37
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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@jboner
jboner / latency.txt
Last active May 7, 2024 19:39
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