# Raindrops 0.4.0 - real-time stats for preforking Rack servers

**URL:** <https://www.ruby-forum.com/t/raindrops-0-4-0-real-time-stats-for-preforking-rack-servers/195350>\
**Category:** Ruby\
**Created:** [September 22, 2010, 12:42am UTC](https://www.ruby-forum.com/t/raindrops-0-4-0-real-time-stats-for-preforking-rack-servers/195350 "2010-09-22T00:42:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ericw](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/97f17d/32.png) [@ericw](https://www.ruby-forum.com/u/ericw)\
**Post date:** [September 22, 2010, 12:42am UTC](https://www.ruby-forum.com/t/raindrops-0-4-0-real-time-stats-for-preforking-rack-servers/195350/1 "2010-09-22T00:42:18Z")

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Raindrops is a real time stats package to show statistics for Rack HTTP  
servers. It is designed for preforking servers such as Rainbows! and  
Unicorn, but should support any Rack HTTP server under Ruby 1.9, 1.8 and  
possibly Rubinius (untested) on platforms supporting POSIX shared  
memory.

- [http://raindrops.bogomips.org/](http://raindrops.bogomips.org/)
- removed\_email\_address@domain.invalid
- git://git.bogomips.org/raindrops.git

Changes:

Non-GCC 4.x users may use the libatomic\_ops[1] package to  
compile Raindrops. Memory efficiency is improved for modern  
glibc users with run-time cache line size detection, we no  
longer assume 128 byte cache lines.

[1] - [http://www.hpl.hp.com/research/linux/atomic\_ops/](http://www.hpl.hp.com/research/linux/atomic_ops/)