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27
Connor Nelson ConnorNelson
behroozam
/ Dockerfile
Last active
March 4, 2024 12:15
send nginx custom log to elasticsearch with fluentd syslog input
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| FROM fluent/fluentd:v1.3-1 | |
| # Use root account to use apk | |
| USER root | |
| # below RUN includes plugin as examples elasticsearch is not required | |
| # you may customize including plugins as you wish | |
| RUN apk add --no-cache --update --virtual .build-deps \ | |
| build-base ruby-dev \ | |
| && gem install \ |
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| #!/usr/bin/env python | |
| # -*- coding: utf-8 | |
| """ | |
| Search longest common substrings using generalized suffix trees built with Ukkonen's algorithm | |
| Author: Ilya Stepanov <code at ilyastepanov.com> | |
| (c) 2013 | |
| """ |
jboner
/ latency.txt
Last active
December 12, 2025 22:06
Latency Numbers Every Programmer Should Know
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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 |