Re: Performance issue with systemd-coredump and container process linking 2000 shared libraries.

2023-06-21 Thread Frank Ch. Eigler via Elfutils-devel
Hi - > On our side Francois also told me this afternoon that he didn’t > really reproduce the same thing with my reproducer posted here and > the real systemd-coredump issue he witnessed live, and also noticed > that with DEBUGINFOD_URLS unset/set to the empty string my > reproducer has no problem

Re: Performance issue with systemd-coredump and container process linking 2000 shared libraries.

2023-06-21 Thread Mark Wielaard
Hi Romain, On Wed, Jun 21, 2023 at 06:14:27PM +, Romain GEISSLER wrote: > > Le 21 juin 2023 à 18:24, Mark Wielaard a écrit : > > > > Seeing those performance results I understand why you were suspecting > > the linked list data structure used in elf_getdata_rawchunk. > > > > Would you be ab

Re: Performance issue with systemd-coredump and container process linking 2000 shared libraries.

2023-06-21 Thread Romain GEISSLER via Elfutils-devel
> Le 21 juin 2023 à 18:24, Mark Wielaard a écrit : > > > > Hi Romain, > > Seeing those performance results I understand why you were suspecting > the linked list data structure used in elf_getdata_rawchunk. > > Would you be able to test a rebuild libelf with the attached patch, > which replac

Re: Performance issue with systemd-coredump and container process linking 2000 shared libraries.

2023-06-21 Thread Mark Wielaard
Hi Romain, On Tue, 2023-06-20 at 22:05 +, Romain GEISSLER wrote: > > Our real use case happens on a Openshift 4.13 node, so the OS is Red Hat Core > OS 9 (which I assume shares a lot of foundations with RHEL 9). > > On our side Francois also told me this afternoon that he didn’t really > r