Tuning Phusion Passenger’s concurrency settings

Tuning Phusion Passenger’s concurrency settings –

Tuning Phusion Passenger’s concurrency settings

Memory. More processes implies a higher memory usage. If too much memory is used then the machine will hit swap, which slows everything down. You should only have as many processes as memory limits comfortably allow. Threads use less memory, so prefer threads when possible. You can create tens of threads in place of one process. Number of CPUs. True (hardware) concurrency cannot be higher than the number of CPUs. In theory, if all processes/threads on your system use the CPUs constantly , then: You can increase throughput up to NUMBER_OF_CPUS processes/threads. Increasing the number of processes/threads after that point will increase virtual (software) concurrency, but will not increase true (hardware) concurrency and will not increase maximum throughput. Having more processes than CPUs may decrease total throughput a little thanks to context switching overhead, but the di...

Full article: http://blog.phusion.nl/2013/03/12/tuning-phusion-passenge...

Tweets

@therealnoop » 13 Mar '13, 1pm
RT @pat_shaughnessy: Get a tune up for your Passenger app server: "Tuning Phusion Passenger’s concurrency settings" [link]
@pat_shaughnessy » 13 Mar '13, 1pm
Get a tune up for your Passenger app server: "Tuning Phusion Passenger’s concurrency settings" [link]
@sjoonk » 13 Mar '13, 6am
퓨전 블로그에 소개된 Passenger 컨커런시 셋팅 튜닝 가이드. Phusion Passenger 사용하는 분들에겐 많은 도움 될 듯. [link]
@dunderline » 13 Mar '13, 3am
“@railsmachine: Don’t know how many Passenger instances you can run? This blog post shows you the math: [link]” crazy
@tnmt » 13 Mar '13, 2am
Tuning Phusion Passenger’s concurrency settings – Phusion Corporate Blog [link]
@stackful_io » 12 Mar '13, 8pm
Tuning Phusion Passenger’s concurrency settings [link] via [link] VPS #devops #sysadmin #python #ruby
@smeedybuild1970 » 12 Mar '13, 2pm
Passenger | Tuning Phusion Passenger’s concurrency settings: Phusion Passenger turns Apache and Nginx into a f... [link]
@railsmachine » 12 Mar '13, 2pm
Don’t know how many Passenger instances you can run? This blog post shows you the math: [link]
@atapiador » 12 Mar '13, 2pm
RT @phusion_nl: Tuning Phusion Passenger’s concurrency settings [link]
@phusion_nl » 12 Mar '13, 1pm
Tuning Phusion Passenger’s concurrency settings [link]
@sprog_ch » 12 Mar '13, 2pm
RT @phusion_nl: Tuning Phusion Passenger’s concurrency settings [link]
@silviorelli » 12 Mar '13, 2pm
RT @phusion_nl: Tuning Phusion Passenger’s concurrency settings [link]
@barttenbrinke » 12 Mar '13, 2pm
RT @phusion_nl: Tuning Phusion Passenger’s concurrency settings [link]
@SocialStreamGem » 12 Mar '13, 2pm
RT @phusion_nl: Tuning Phusion Passenger’s concurrency settings [link]