For this investigation we are going to use the sleepdata data set from the lme4 package. Here is the head of the data frame:
Mark Stuart codeitagile
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toddwschneider
/ rg_dyno_sim.R
Last active
July 19, 2021 15:01
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| # you can make a text file of request times (in ms, one number per line) and import it here, or you can use a probability distribution to simulate request times (see below where setting req_durations_in_ms) | |
| # rq = read.table("~/Downloads/request_times.txt", header=FALSE)$V1 | |
| # argument notes: | |
| # parallel_router_count is only relevant if router_mode is set to "intelligent" | |
| # choice_of_two, power_of_two, and unicorn_workers_per_dyno are only relevant if router_mode is set to "naive" | |
| # you can only select one of choice_of_two, power_of_two, and unicorn_workers_per_dyno | |
| run_simulation = function(router_mode = "naive", | |
| reqs_per_minute = 9000, |
isaacs
/ node-and-npm-in-30-seconds.sh
Last active
November 2, 2024 12:56
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
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| echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc | |
| . ~/.bashrc | |
| mkdir ~/local | |
| mkdir ~/node-latest-install | |
| cd ~/node-latest-install | |
| curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1 | |
| ./configure --prefix=~/local | |
| make install # ok, fine, this step probably takes more than 30 seconds... | |
| curl https://www.npmjs.org/install.sh | sh |