May 25, 2012

Post: Aligning IO on a hard disk RAID – the Theory

… a certain level) so when writing a file, file system decides how to distribute writes properly so they make the… here’s how we would create the file system: xfs – mkfs.xfs -b 4k -d su=64k,sw=5 /… RAID5 – N-1 (single parity), with RAID6 – N-2 (double parity). You want to know that when setting …

Post: Innodb Performance Optimization Basics

…in particular roadblocks with it try XFS. You can use noatime and …it would not swap out MySQL out of memory. MySQL Innodb Settings The most … especially on a lot of short write transactions. innodb_thread_concurrency=8 Even…innodb_flush_method=O_DIRECT Avoid double buffering and reduce swap pressure, …