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@WJWH
WJWH / c10k.ru
Created October 15, 2018 09:12
The double hijack trick, serving 65k connections from a single ruby process
# This server demo does a socket hijack in Rack and then saves the socket to a global variable
# to prevent it from being GCed when the Puma thread ends. It will then write "BEEP" to each
# socket every ten seconds to prevent the connection timing out. During testing, it easily
# handled up to 65523 connections, after which it ran into the `ulimit` for open file descriptors.
# The bit with the waiting area is there because a normal `Set` is not thread safe and it would
# drop socket due to race conditions. The `Queue` is thread safe and will make sure all sockets
# are preserved.
# run with `rackup -q -p 8000 -o 0.0.0.0 c10k.ru`
# testing: install `ab` and then run `ab -c 20000 -n 20000 <ip adress of server>:8000/
@maxivak
maxivak / readme.md
Last active January 12, 2024 06:53
Integrating Gem/Engine and Main Rails App
@thijsc
thijsc / gist:1391107
Created November 24, 2011 11:08
Select item from chosen js select with Capybara and Selenium
def select_from_chosen(item_text, options)
field = find_field(options[:from])
option_value = page.evaluate_script("$(\"##{field[:id]} option:contains('#{item_text}')\").val()")
page.execute_script("$('##{field[:id]}').val('#{option_value}')")
end
@gdiggs
gdiggs / comments.haml
Created June 10, 2011 20:57
multi-line haml comments
-# This comment can be
split up in multiple lines just
by indentation!
Mike
doesn't
like
these
comments
.