with sysv/lsb you could include the follwoing script via "source" and hughe TLB in mysqld worked like a charme
[root@rh:~]$ cat /etc/my.memory.cnf # Large-Memory-Pages echo 200 > /proc/sys/vm/nr_hugepages echo 27 > /proc/sys/vm/hugetlb_shm_group echo 2097152 > /proc/sys/kernel/shmall ulimit -l unlimited ulimit -n 30000 _____________ calling this via "ExecStartPre" does not work so HOW do this on a systemd-environment if your mysqld has a hughe key_buffer size? 110917 12:53:55 InnoDB: Initializing buffer pool, size = 256.0M InnoDB: HugeTLB: Warning: Failed to allocate 274726912 bytes. errno 12 InnoDB HugeTLB: Warning: Using conventional memory pool
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