Performance Metrics - 2012
Percentage of time that a request for a page is returned within three seconds from on campus (target: 99.9%)
Month | % |
---|---|
Jan '12 | 100% |
Feb '12 | 100% |
Mar '12 | 99.99% |
Apr '12 | 99.99% |
May '12 | 99.97% |
Jun '12 | 99.98% |
Jul '12 | 99.95% |
Aug '12 | 99.998% |
Sep '12 | 99.99% |
Oct '12 | 99.95% |
Nov '12 | 99.95% |
Dec '12 | 99.999% |
Availability off-campus, as measured by Pingdom.com (30 second timeout, from at least 2 out of 10 locations ) (no target set)
Month | % |
---|---|
Jan '12 | 100% |
Feb '12 | 100% |
Mar '12 | 100% |
Apr '12 | 99.98% |
May '12 | 99.18%* |
Jun '12 | 99.91% |
Jul '12 | 99.97% |
Aug '12 | 99.76% |
Sep '12 | 99.77% |
Oct '12 | 99.65% |
Nov '12 | 99.91% |
Dec '12 | 99.98% |
* This downtime was caused by a failed JANET link between North America and the UK, which caused UK Higher Education websites to be unavailable sporadically from North America.
Percentage of time that a request for a websignon UserLookup request is returned within 5 seconds from within our datacenter* (target: 99.5%)
Month | % |
---|---|
Jan '12 | 100% |
Feb '12 | 100% |
Mar '12 | 99.99% |
Apr '12 | 100% |
May '12 | 100% |
Jun '12 | 99.996% |
Jul '12 | 99.97% |
Aug '12 | 100% |
Sep '12 | 100% |
Oct '12 | 100% |
Nov '12 | 100% |
Dec '12 | 100% |
* This might seem contrived. But 5 seconds is the threshold at which other applications will time-out a request to websignon, and since the vast majority of WSOS-enabled apps live in our datacentres, that's where we should measure from.