> On 11 Dec 2019, at 02:20, Howard Chu <hyc@xxxxxxxxx> wrote: > > 389-devel-request@xxxxxxxxxxxxxxxxxxxxxxx wrote: > >> My next steps from here will be: >> >> * To add USDT probes to the logs and back_ldbm to get better, fine detail about what is causing the excessive latency. >> * these probes are also needed to resolve what appears to be a symbol resolution issue with systemtap when optimisations are enabled. >> * To add probes in other parts of the code base to get better visualisation about where and how long timings are taking through an operation. >> * To run a lock contention profile (I was unable to do this today due to bugs in systemtap) >> * To document the setup proceedures >> * Commit all these into a PR >> * Document some actionable improvements we can make to improve the server performance. > > mutrace will give you a good audit of lock contention, and it's simple to use, takes no setup. > > http://git.0pointer.net/mutrace.git/ Thanks, that's a good tip, I'll look into that too. Appreciate it, > > -- > -- Howard Chu > CTO, Symas Corp. http://www.symas.com > Director, Highland Sun http://highlandsun.com/hyc/ > Chief Architect, OpenLDAP http://www.openldap.org/project/ > _______________________________________________ > 389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to 389-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/389-devel@xxxxxxxxxxxxxxxxxxxxxxx — Sincerely, William Brown Senior Software Engineer, 389 Directory Server SUSE Labs _______________________________________________ 389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to 389-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/389-devel@xxxxxxxxxxxxxxxxxxxxxxx
