http://bugzilla.opensuse.org/show_bug.cgi?id=1114538 Bug ID: 1114538 Summary: systemd: journalctl performance is slower compared to Leap 42.3 Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.0 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem Assignee: bnc-team-screening@forge.provo.novell.com Reporter: markos.chandras@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 788309 --> http://bugzilla.opensuse.org/attachment.cgi?id=788309&action=edit journal files First of all apologies for the title, but I did't know how else to phrase it since I don't know the exact reasons just yet. We are observing some slowness in the Leap 15 upstream OpenStack jobs and it all comes down to journalctl being terribly slow compared to Leap 42.3 Here are some details == 42.3 == journal file: ecb95df5ea41489fa1825f7afd92e4d3/system.journal 2018-11-02 16:09 24M logs: 2018-11-02 16:11:55.805918 | opensuse-423 | ++ sudo journalctl --file=/var/log/journal/ecb95df5ea41489fa1825f7afd92e4d3/system.journal --output=cat 2018-11-02 16:11:55.876491 | opensuse-423 | 2018-11-02 16:11:55.876582 | opensuse-423 | real 0m0.071s 2018-11-02 16:11:55.876611 | opensuse-423 | user 0m0.055s 2018-11-02 16:11:55.876637 | opensuse-423 | sys 0m0.015s 2018-11-02 16:11:55.876765 | opensuse-423 | ++ sudo journalctl --file=/var/log/journal/ecb95df5ea41489fa1825f7afd92e4d3/system.journal --output=json-pretty 2018-11-02 16:11:56.697738 | opensuse-423 | 2018-11-02 16:11:56.697909 | opensuse-423 | real 0m0.821s 2018-11-02 16:11:56.697984 | opensuse-423 | user 0m0.687s 2018-11-02 16:11:56.698046 | opensuse-423 | sys 0m0.133s == 15.0 == journal file: 2209f71a310e4383849df3b36e462922/system.journal 2018-11-02 16:15 24M 2018-11-02 16:20:12.898136 | opensuse-150 | ++ sudo journalctl --file=/var/log/journal/2209f71a310e4383849df3b36e462922/system.journal --output=cat 2018-11-02 16:20:13.118726 | opensuse-150 | 2018-11-02 16:20:13.118847 | opensuse-150 | real 0m0.222s 2018-11-02 16:20:13.118907 | opensuse-150 | user 0m0.162s 2018-11-02 16:20:13.119013 | opensuse-150 | sys 0m0.059s 2018-11-02 16:20:13.119268 | opensuse-150 | ++ sudo journalctl --file=/var/log/journal/2209f71a310e4383849df3b36e462922/system.journal --output=json-pretty 2018-11-02 16:20:16.389780 | opensuse-150 | 2018-11-02 16:20:16.389932 | opensuse-150 | real 0m3.271s 2018-11-02 16:20:16.390028 | opensuse-150 | user 0m2.594s 2018-11-02 16:20:16.390117 | opensuse-150 | sys 0m0.672s I do realize that the journal files are different but the size of them is the same ==== As we can see, the same operation in Leap 15 needs +3 seconds. It does not matter if we use --output=cat or --output=json-pretty. The OS configuration is the same (rootfs being ext4, both are virtual machines etc) Unfortunately I am not able to quickly reproduce this in a Leap 15 vagrant environment or by loading the same files in my TW system. In both cases journactl is rather fast. However, the problem is 100% consistent in the upstream jobs so something must be wrong there. Let me know if you need be to provide more information. I will also keep investigating myself. I have also attached the 2 files. -- You are receiving this mail because: You are on the CC list for the bug.