MDEV-10829: innodb_numa_interleave=1, use numa numa_get_mems_allowed #236
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Using numa_all_nodes_ptr was excessively optimistic. Due to constraints in systemd, containers or otherwise mysqld could of been limited to a smaller set of cpus. Use the numa_get_mems_allowed library function to see what we can interleave between before doing so. The alternative is to fail interleaving overall. Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
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Hi Daniel, Thanks for your contribution. JIRA task just for the record: https://jira.mariadb.org/browse/MDEV-10829 This task was added to 10.1.19 backlog, which is planned to be handled between 2016-10-13 and 2016-10-20. Thanks, |
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part of #240 |
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Using numa_all_nodes_ptr was excessively optimistic. Due to
constraints in systemd, containers or otherwise mysqld could of been
limited to a smaller set of cpus. Use the numa_get_mems_allowed
library function to see what we can interleave between before doing
so. The alternative is to fail interleaving overall.
I submit this under the MCA.