Performance Metrics - 2013
Percentage of time that a request for a page is returned within three seconds from on campus (target: 99.9%)
Month | % |
---|---|
Jan '13 | 99.99% |
Feb '13 | 100% |
Mar '13 | 99.94% |
Apr '13 | 99.998% |
May '13 | 99.967% |
Jun '13 | 99.967% |
Jul '13 | 100% |
Aug '13 | 100% |
Sep '13 | 99.965% |
Oct '13 | 99.81% |
Nov '13 | 99.786% |
Dec '13 | 99.908% |
Availability off-campus, as measured by Pingdom.com (30 second timeout, from at least 2 out of 10 locations ) (no target set)
Month | % |
---|---|
Jan '13 | 99.21% |
Feb '13 | 99.86% |
Mar '13 | 99.94% |
Apr '13 | 99.98% |
May '13 | 99.92% |
Jun '13 | 99.965% |
Jul '13 | 100% |
Aug '13 | 100% |
Sep '13 | 100% |
Oct '13 | 99.877% |
Nov '13 | 99.686% |
Dec '13 | 99.966% |
* 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 '13 | 100% |
Feb '13 | 99.991% |
Mar '13 | 100% |
Apr '13 | 100% |
May '13 | 100% |
Jun '13 | 99.985% |
Jul '13 | 99.976% |
Aug '13 | 99.996% |
Sep '13 | 100% |
Oct '13 | 99.814% |
Nov '13 | 100% |
Dec '13 | 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.