You probably want to understand what is happening during the execution. For that purpose, you want a thread dump of the running JVM: https://wiki.jenkins-ci.org/display/JENKINS/Obtaining+a+thread+dump
HTH 2016-11-10 19:51 GMT+01:00 J Starbird <[email protected]>: > No it doesn't write very much to stdout. Basically it just writes out what > the params were that were passed into it and then it writes out a short > progress tag, so like "Doing step 1" but it all only amounts to about 5 > lines of text, short lines. > > > > On Thursday, November 10, 2016 at 10:35:12 AM UTC-8, Daniel Beck wrote: >> >> Is it writing large amounts of text to stdout? I.e. the Jenkins build >> log? If so, is it still slow when redirecting output to a file, or NUL? >> >> > On 10.11.2016, at 19:30, J Starbird <[email protected]> wrote: >> > >> > Jenkins 2.19.1 >> > Java 8 >> > Windows 7 Pro Sp1 >> > >> > I don't know exactly when this started happening, at which upgrade of >> Jenkins it was just before moving to 2.x, but at some point an exe we use >> for special tests started running much slower. It went from running in 2hrs >> to taking over 6hrs. >> > Nothing in the exe was changed, the only changes were to Jenkins and >> upgrading to Java 8. >> > >> > There are no errors reported anywhere, it simply just takes that much >> longer and ONLY when run under Jenkins. When I run this exe with the exact >> same params and on the exact same system it runs fine and back at it's >> normal length of time. >> > >> > When monitoring the system it appears the exe is doing some IO at the >> time but under Jenkins it's just extremely slow at doing it. >> > >> > I've gone from running the exe from and MSBuild project to running it >> directly as a Windows EXE and also using the Windows Batch, in every case >> it runs the same slow speed. >> > >> > I've discussed it with other developers here and no one has any ideas >> so I'm now asking all of you, anyone have any ideas? >> > >> > The system has 16Gb of ram, 8 assigned to Jenkins, it has plenty of >> disk space and it has 4 cores. Nothing else is running on the system at >> the time, just Jenkins and the EXE. Antivirus is disabled, UAC is disabled, >> the user Jenkins runs as is full Admin on the system. >> > >> > >> > Any help would be appreciated. Thanks. >> > >> > -- >> > 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 [email protected]. >> > To view this discussion on the web visit https://groups.google.com/d/ms >> gid/jenkinsci-users/37030984-def4-495a-ac57-e76e34242fd4% >> 40googlegroups.com. >> > For more options, visit https://groups.google.com/d/optout. >> >> -- > 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 [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/jenkinsci-users/8544807e-1ffc-40f3-8236-8d35723086aa%40googlegroups. > com > <https://groups.google.com/d/msgid/jenkinsci-users/8544807e-1ffc-40f3-8236-8d35723086aa%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/CANWgJS6hcKG%3Dw1am6FEN%3DTZkXYAJqUcf5p9Sj0EFjGCkKS7_Sw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
