diff options
Diffstat (limited to 'doc/development/fe_guide/performance.md')
| -rw-r--r-- | doc/development/fe_guide/performance.md | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/doc/development/fe_guide/performance.md b/doc/development/fe_guide/performance.md index 0aba38aca8c..2628e95dbc1 100644 --- a/doc/development/fe_guide/performance.md +++ b/doc/development/fe_guide/performance.md @@ -5,6 +5,7 @@ ### Realtime Components When writing code for realtime features we have to keep a couple of things in mind: + 1. Do not overload the server with requests. 1. It should feel realtime. @@ -12,16 +13,16 @@ Thus, we must strike a balance between sending requests and the feeling of realt Use the following rules when creating realtime solutions. 1. The server will tell you how much to poll by sending `Poll-Interval` in the header. -Use that as your polling interval. This way it is [easy for system administrators to change the -polling rate](../../administration/polling.md). -A `Poll-Interval: -1` means you should disable polling, and this must be implemented. + Use that as your polling interval. This way it is [easy for system administrators to change the + polling rate](../../administration/polling.md). + A `Poll-Interval: -1` means you should disable polling, and this must be implemented. 1. A response with HTTP status different from 2XX should disable polling as well. 1. Use a common library for polling. 1. Poll on active tabs only. Please use [Visibility](https://github.com/ai/visibilityjs). 1. Use regular polling intervals, do not use backoff polling, or jitter, as the interval will be -controlled by the server. + controlled by the server. 1. The backend code will most likely be using etags. You do not and should not check for status -`304 Not Modified`. The browser will transform it for you. + `304 Not Modified`. The browser will transform it for you. ### Lazy Loading Images |