https://bugs.openldap.org/show_bug.cgi?id=9830

Issue ID: 9830 Summary: slapd using more memory on linux kernel 5.xx then kernel 4.19 Product: OpenLDAP Version: 2.4.59 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: pavel.mamonov@wildix.com Target Milestone: ---

Hi, there

After upgrade a debian distro from 10 to 11 we are faced with consumption of memory more then before. We testing on the same system with different kernels.

======================================== System with a kernel 4.19: using of memory (slapd) ~ 100-120mb (max) slapd 2.4.59 libc6:amd64 2.31-13+deb11u2 linux-image-4.19.0-14-cloud-amd64 4.19.171-2 ======================================== System with a kernel 5.10: using of memory (slapd) ~ 135-235mb (max) slapd 2.4.59 libc6:amd64 2.31-13+deb11u2 linux-image-5.10.0-10-cloud-amd64 5.10.84-1 ========================================

Also we tried to use other allocator of memory like "libtcmalloc-minimal4:amd64 2.8.1-1" - but, unfortunately, it does not help us.

Could you give advice what we can do for optimize memory and reduction using of it ?

If need additional info please, let me know.