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setup
README.markdown

README.markdown

Hardware

Core i7 2700K 3.5GHz 1 cpu, 4 cores/cpu, 2 hts/core
L2:4x256KB L3:8MB RAM:16GB:DDR3-1333MHz
Sandy Bridge-HE-4 (LGA1155)

Software

Ubuntu 12.04.05 LTS (3.2.0-20-generic x86_64)
Erlang 19.3
CloudI 1.7.1 (42457952ad1223bfd2ca089c703df40f953ddbfd)
GCC version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
Go (go gc) go1.7.5 linux/amd64
GHC 7.10.3
Java OpenJDK 1.8.0_91 (1.8.0_91-8u91-b14-0ubuntu4~12.04-b14)
NodeJS v6.10.2
OCaml 4.03.0
Perl v5.14.2
PHP 5.3.10-1ubuntu3.15 (Zend Engine v2.3.0)
Python 2.7.3/3.2.3
Ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]

Test

Use cloudi_service_request_rate to send service requests to the http_req integration test written in a supported programming language. While keeping the total concurrency at 4 (for this 4 core machine), with 2 senders and 2 receivers, vary the receiver service configuration to determine the effect on the maximum stable request rate that can be sustained (for at least 2 minutes without any errors or timeouts). The destination refresh method (a service configuration parameter) and the duo_mode (a service configuration option) are settings for the sender service (cloudi_service_request_rate).

Max Stable (Total) Request Rate (requests/second): C

req/sec  dest_refresh_method duo_mode sender receiver
  21476                 lazy     true      2        2 (processes,-O0)

Max Stable (Total) Request Rate (requests/second): Erlang

req/sec  dest_refresh_method duo_mode sender receiver
  31081                 lazy     true      2        2

Max Stable (Total) Request Rate (requests/second): Go

req/sec  dest_refresh_method duo_mode sender receiver
  17944                 lazy     true      2        2 (processes)
  18007                 lazy     true      2        2 (threads)

Max Stable (Total) Request Rate (requests/second): Haskell

req/sec  dest_refresh_method duo_mode sender receiver
  17888                 lazy     true      2        2 (processes)
  19959                 lazy     true      2        2 (threads)

Max Stable (Total) Request Rate (requests/second): Java

req/sec  dest_refresh_method duo_mode sender receiver
  19386                 lazy     true      2        2 (processes)
  20121                 lazy     true      2        2 (threads)

Max Stable (Total) Request Rate (requests/second): Javascript

req/sec  dest_refresh_method duo_mode sender receiver
  10856                 lazy     true      2        2 (processes)

Max Stable (Total) Request Rate (requests/second): OCaml

req/sec  dest_refresh_method duo_mode sender receiver
  22477                 lazy     true      2        2 (threads)
  22585                 lazy     true      2        2 (processes)

Max Stable (Total) Request Rate (requests/second): Perl

req/sec  dest_refresh_method duo_mode sender receiver
  13126                 lazy     true      2        2 (threads)
  13502                 lazy     true      2        2 (processes)

Max Stable (Total) Request Rate (requests/second): PHP

req/sec  dest_refresh_method duo_mode sender receiver
  14512                 lazy     true      2        2 (processes)

Max Stable (Total) Request Rate (requests/second): Python

req/sec  dest_refresh_method duo_mode sender receiver
  10452                 lazy     true      2        2 (v3 threads)
  10985                 lazy     true      2        2 (v2 threads)
  14121                 lazy     true      2        2 (v3 processes)
  14424                 lazy     true      2        2 (v2 processes)
  20213                 lazy     true      2        2 (v2/C threads)
  21334                 lazy     true      2        2 (v2/C processes)

Max Stable (Total) Request Rate (requests/second): Ruby

req/sec  dest_refresh_method duo_mode sender receiver
  10673                 lazy     true      2        2 (threads)
  17245                 lazy     true      2        2 (processes)
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