Don Park

Rails 2.1 + postgres-pr 0.4

$ ruby -v
ruby 1.8.6 (2008-08-08 patchlevel 286) [i686-linux]

With no other load, push 15 updates.

$ ./apachebench 15
Requests per second:    16.41 [#/sec] (mean)
Time per request:       60.955 [ms] (mean)

Generating a load of 10 sequential hits on the front page.

$ ab -n 10 http://icecondor.com/
Requests per second:    0.52 [#/sec] (mean)
Time per request:       1932.842 [ms] (mean)

While the front page hits are running, push 15 updates

$ ./apachebench 15
Requests per second:    4.00 [#/sec] (mean)
Time per request:       250.044 [ms] (mean)

$ ./apachebench 15
Requests per second:    18.06 [#/sec] (mean)
Time per request:       55.362 [ms] (mean)

conclusion: location updates are lightweight, with at least 4 updates per second supported.

Higher load, 100 updates across 5 concurrent clients.

$ ./apachebench 100 -c 5
Requests per second:    9.90 [#/sec] (mean)
Time per request:       101.027 [ms] (mean)