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""" | |
This snippet shows how to listen for the SIGTERM signal on Unix and execute a | |
simple function open receiving it. | |
To test it out, uncomment the pid code and kill the process with: | |
$ kill -15 pid | |
""" | |
import signal | |
import sys |
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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 |
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(ns favila.async-util | |
"Some missing pieces of core.async. | |
as-transducer: Make a transducer function easily without Clojure 1.7. | |
go-pipe: async/pipe, but returns the go-loop. | |
fast-pipeline-blocking: faster than async/pipeline-blocking, but unordered results. | |
blocking-consumer: consume a channel with multiple worker threads." | |
(:require [clojure.core.async :as async | |
:refer [go go-loop <! >! <!! >!! close! take! put! chan]])) |
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would