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@ferd
ferd / refc_leak.erl
Created July 18, 2013 12:32
Find Erlang processes that may be leaking refc binaries
f(MostLeaky).
MostLeaky = fun(N) ->
lists:sublist(
lists:usort(
fun({K1,V1},{K2,V2}) -> {V1,K1} =< {V2,K2} end,
[try
{_,Pre} = erlang:process_info(Pid, binary),
erlang:garbage_collect(Pid),
{_,Post} = erlang:process_info(Pid, binary),
{Pid, length(Post)-length(Pre)}
@macintux
macintux / erlang-resources.md
Last active November 11, 2025 17:41
Erlang online resources

This is not intended to be comprehensive or authoritative, just free online resources I've found valuable while learning more about Erlang.

Joe Armstrong's Swedish Institute of Computer Science homepage (Wayback Machine)

https://web.archive.org/web/20070429181654/http://www.sics.se/~joe/

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@bsparrow435
bsparrow435 / get_put_code.md
Last active December 30, 2024 17:25
Get/Put path walk through
@hrchu
hrchu / 99-network-tuning.conf
Last active January 14, 2025 08:29 — forked from kgriffs/sysctl.conf
Linux Web Server Kernel Tuning
# Configuration file for runtime kernel parameters.
# See sysctl.conf(5) for more information.
# See also http://www.nateware.com/linux-network-tuning-for-2013.html for
# an explanation about some of these parameters, and instructions for
# a few other tweaks outside this file.
# See evil packets in your logs.
net.ipv4.conf.all.log_martians = 1
@djaiss
djaiss / gist:85a0ada83e6bca68e41e
Last active September 30, 2025 06:54
Block Twitter/Facebook in your /etc/hosts
# Block Facebook IPv4
127.0.0.1 www.facebook.com
127.0.0.1 facebook.com
127.0.0.1 login.facebook.com
127.0.0.1 www.login.facebook.com
127.0.0.1 fbcdn.net
127.0.0.1 www.fbcdn.net
127.0.0.1 fbcdn.com
127.0.0.1 www.fbcdn.com
127.0.0.1 static.ak.fbcdn.net
@lehoff
lehoff / pb_decode.erl
Created October 5, 2016 03:21
Potentially more efficient PB decoding
-module(pb_decode).
-compile(export_all).
%% existing code
d_msg_rpberrorresp(Bin, TrUserData) ->
dfp_read_field_def_rpberrorresp(Bin, 0, 0,
id(undefined, TrUserData),
id(undefined, TrUserData), TrUserData).
@subfuzion
subfuzion / README.md
Last active April 25, 2025 18:23
vim/neovim configuration

I recently switched over to neovim (see my screenshots at the bottom). Below is my updated config file.

It's currently synchronized with my .vimrc config except for a block of neovim-specific terminal key mappings.

This is still a work in progress (everyone's own config is always a labor of love), but I'm already extremely pleased with how well this is working for me with neovim. While terminal mode isn't enough to make me stop using tmux, it is quite good and I like having it since it simplifies my documentation workflow for yanking terminal output to paste in a markdown buffer.

These days I primarily develop in Go. I'm super thrilled and grateful for fatih/vim-go,

@lukebakken
lukebakken / .gitignore
Last active October 10, 2017 15:13
Erlang RSS Memory
*.beam
*.csv
Originally from: http://erlang.org/pipermail/erlang-questions/2017-August/093170.html
For a safe and fast Erlang SSL server, there's a few
configuration values you might want by default:
[{ciphers, CipherList}, % see below
{honor_cipher_order, true}, % pick the server-defined order of ciphers
{secure_renegotiate, true}, % prevent renegotiation hijacks
{client_renegotiation, false}, % prevent clients DoSing w/ renegs
{versions, ['tlsv1.2', 'tlsv1.1']}, % add tlsv1 if you must
@lukebakken
lukebakken / README.md
Last active May 17, 2024 19:25
RabbitMQ / MQTT TCP Tuning

rabbitmq.config

[
    {rabbit, [
        {background_gc_enabled, true},
        {background_gc_target_interval, 60000},
        {tcp_listeners, [5672]},
        {num_tcp_acceptors, 10},
        {connection_max, infinity},