शब्दकोश · मॉनिटरिंग

Degraded Performance

Degraded performance is a status where a service still works but is slower, less reliable or missing some functions compared with its normal level.

अपडेट: अक्टूबर 6, 2026

Degraded performance means a service is reachable but not operating normally. Pages load slowly, a feature fails for some users, error rates are elevated, or a background process is delayed. Many status pages use it as a state between "operational" and "outage".

Why it matters

From a user's perspective a page that takes 20 seconds to load is nearly as bad as one that is down, yet a simple up/down check calls it healthy. Degradation often appears before a full outage, for instance when a database is nearing its connection limit, so catching it gives time to act. Reporting it honestly on the status page also builds trust.

Example

A monitor sets two thresholds on response time:

warning:  response time > 2 s for 5 minutes  -> "Degraded performance"
critical: no response or 5xx for 2 checks    -> "Major outage"

A response time of 3.4 s triggers the warning without paging anyone at night.

Common mistakes

  • Using only up/down checks, which cannot see slowness.
  • Using averages, which hide a slow minority of requests.
  • Not telling users, leaving them to guess whether the problem is on their side.

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