/threadDump will tell you what the threads are doing. Look for 'Handling GET'.
If you have large views (i.e. 500+ items actually shown), my guess is Functions.getRelativeLinkTo(Item), which iterates over all items in the view (requiring recomputation of what actually is part of the view) for every item to be shown. Another option could be expensive columns like 'Project Statistics Plugin' that require loading all builds from disk; or Maven Plugin jobs which have more builds than you think (see discussion in JENKINS-21487). On 18.02.2014, at 09:49, Dirk Kuypers <kuypers.d...@gmail.com> wrote: > Hi all, > > we have a quite big Jenkins installation (although I know from some posts to > this lists that there are much bigger ones out there). A master which is only > doing the web front-end with about 20 Slaves. We have a lot of jobs, at the > moment about 3000 (job-dsl plugin rules;-) but in the end it could be 6000. > > Our problem is that selecting a global view takes around 20 seconds. > Reconfiguring and saving a global view took about 20 minutes yesterday. > > Some things I observed: I think it has something to do with the number of > global views (times number of jobs). My personal view is quite responsive, > the global view contains about 20 views right now. Is it possible that > Jenkins somehow has to iterate through all views to add a row to a view? I am > wondering what could keep a 2.9 GHz CPU spinning at 100 % for 20 minutes. You > could compute quite some fancy stuff in that time.;-) I do not see big > IO-spikes, so (almost) everything seems to happen in memory. > > The server is an ESX instance with dual Xeon 2.9Ghz, disks are located on a > 15 k SAS array, RAM allocated to the machine is 8 GByte at the moment. > Jenkins version is 1.551, all used plugins are also latest versions. > > Some hints where to look at? Are there some plugins known which slow down > everything if you have a large number of jobs? > > Thanks > Dirk > > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jenkinsci-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
