diff options
Diffstat (limited to 'lib/rainbows/thread_pool.rb')
| -rw-r--r-- | lib/rainbows/thread_pool.rb | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/lib/rainbows/thread_pool.rb b/lib/rainbows/thread_pool.rb index 8f2b629..b7860eb 100644 --- a/lib/rainbows/thread_pool.rb +++ b/lib/rainbows/thread_pool.rb @@ -1,24 +1,21 @@ # -*- encoding: binary -*- # Implements a worker thread pool model. This is suited for platforms -# like Ruby 1.9, where the cost of dynamically spawning a new thread -# for every new client connection is higher than with the ThreadSpawn -# model. +# like Ruby 1.9, where the cost of dynamically spawning a new thread for +# every new client connection is higher than with the ThreadSpawn model, +# but the cost of an idle thread is low (e.g. NPTL under Linux). # -# This model should provide a high level of compatibility with all -# Ruby implementations, and most libraries and applications. -# Applications running under this model should be thread-safe -# but not necessarily reentrant. +# This model should provide a high level of compatibility with all Ruby +# implementations, and most libraries and applications. Applications +# running under this model should be thread-safe but not necessarily +# reentrant. # -# Applications using this model are required to be thread-safe. -# Threads are never spawned dynamically under this model. If you're -# connecting to external services and need to perform DNS lookups, -# consider using the "resolv-replace" library which replaces parts of -# the core Socket package with concurrent DNS lookup capabilities. +# Applications using this model are required to be thread-safe. Threads +# are never spawned dynamically under this model. # -# This model probably less suited for many slow clients than the -# others and thus a lower +worker_connections+ setting is recommended. - +# If you're using green threads (MRI 1.8) and need to perform DNS lookups, +# consider using the "resolv-replace" library which replaces parts of the +# core Socket package with concurrent DNS lookup capabilities. module Rainbows::ThreadPool include Rainbows::Base |