* A defect in the malloc implementation, present since glibc 2.15 (2012) or glibc 2.10 via --enable-experimental-malloc (2009), could result in the unnecessary serialization of memory allocation requests across threads. The defect is now corrected. Users should see a substantial increase in the concurent throughput of allocation requests for applications which trigger this bug. Affected applications typically create create and destroy threads frequently. (Bug 19048 was reported and analyzed by Ericsson.) ... It seems that we'd need at least two bug fixes from 2.23 to backport this to 2.22: https://sourceware.org/bugzilla/show_bug.cgi?id=19048 https://sourceware.org/bugzilla/show_bug.cgi?id=19243 Backported in Fedora-23: https://lists.fedoraproject.org/pipermail/package-announce/2015-November/171369.html
Apply the attached patch to oe-core layer.