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  1. Jenkins
  2. JENKINS-38363

Investigate slow loading experience

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      pacific, atlantic, 1.0-b05/b-06, arctic, tasman, frank

      Description

      When loading dogfood, or even locally, there is a noticable slowness in loading (can be seen as worm takes a while to cross the screen):

      This could be the result of the search api slowness (being addressed) or perhaps static resource inefficiencies: https://issues.jenkins-ci.org/browse/JENKINS-38253

      Investigating the causes of this (to confirm those other tickets) makes sense.

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            kzantow Keith Zantow added a comment -

            Michael Neale yes, there's an "easy" way to optimize resources, in general, using unique urls (already done) and far future expires headers and omitting the etags.

            Show
            kzantow Keith Zantow added a comment - Michael Neale yes, there's an "easy" way to optimize resources, in general, using unique urls (already done) and far future expires headers and omitting the etags.
            Hide
            michaelneale Michael Neale added a comment -

            Keith Zantow right - https://github.com/jenkinsci/blueocean-plugin/pull/551 is a PR by tom that sets the cache headers. Will give it a try.

            Show
            michaelneale Michael Neale added a comment - Keith Zantow right - https://github.com/jenkinsci/blueocean-plugin/pull/551 is a PR by tom that sets the cache headers. Will give it a try.
            Hide
            michaelneale Michael Neale added a comment - - edited

            Here are some gifs I made to get a baseline against the roughly equivalent "classic" screen, where blue ocean isn't as snappy as it needs to be:

            1) main dashboard:
            http://www.giphy.com/gifs/26ufkjzMWkd09D4hW

            2) Activity screen:
            http://www.giphy.com/gifs/l3vR23VQ30SGdeDAc
            (this isn't exactly one to one, as blue ocean is showing across branches).

            (ie cold load time to displaying something, ANYTHING, is beyond terrible, its just dire).

            3) showing pipeline results:
            http://www.giphy.com/gifs/l0MYNT0wNlpnRmNUI
            (once again, not quite the same, but a fair comparison I think).

            The most prominent bad UX is on cold cache load of course, but I thought I should point out these others.

            Show
            michaelneale Michael Neale added a comment - - edited Here are some gifs I made to get a baseline against the roughly equivalent "classic" screen, where blue ocean isn't as snappy as it needs to be: 1) main dashboard: http://www.giphy.com/gifs/26ufkjzMWkd09D4hW 2) Activity screen: http://www.giphy.com/gifs/l3vR23VQ30SGdeDAc (this isn't exactly one to one, as blue ocean is showing across branches). (ie cold load time to displaying something, ANYTHING, is beyond terrible, its just dire). 3) showing pipeline results: http://www.giphy.com/gifs/l0MYNT0wNlpnRmNUI (once again, not quite the same, but a fair comparison I think). The most prominent bad UX is on cold cache load of course, but I thought I should point out these others.
            Hide
            tfennelly Tom FENNELLY added a comment -

            Michael Neale Setting the cache control header has eliminated the if-modified requests. Reports are that the performance has been better since. More work to do on reducing the bundle sizes (ongoing - separate ticket). Maybe ye can close this ticket now?

            Show
            tfennelly Tom FENNELLY added a comment - Michael Neale Setting the cache control header has eliminated the if-modified requests. Reports are that the performance has been better since. More work to do on reducing the bundle sizes (ongoing - separate ticket). Maybe ye can close this ticket now?
            Hide
            michaelneale Michael Neale added a comment -

            Tom FENNELLY in my screencasts above, it still hasn't improved in each case - ie classic is still faster on a remote connection.

            However, the general feel (which is mostly snappy, just not the loading) and cold loading has improved a bit, but cold loading is still quite bad.

            Will keep this open to re-check things when JENKINS-38013 is closed. Keith Zantow has marked this as in progress so will check in if he has looked at things (otherwise moving this to the backlog).

            Show
            michaelneale Michael Neale added a comment - Tom FENNELLY in my screencasts above, it still hasn't improved in each case - ie classic is still faster on a remote connection. However, the general feel (which is mostly snappy, just not the loading) and cold loading has improved a bit, but cold loading is still quite bad. Will keep this open to re-check things when JENKINS-38013 is closed. Keith Zantow has marked this as in progress so will check in if he has looked at things (otherwise moving this to the backlog).

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              Assignee:
              tfennelly Tom FENNELLY
              Reporter:
              michaelneale Michael Neale
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