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We are continuing our journey as an evil KVM administrator who wants to mess with a tenants virtual machines. This time we will modify a binary execution code path by changing machine code opcodes in a running
Shit happens. We had recently another customer who can relate to that absolute truth – after a serious storage problem, they managed to restore only data files from one mount point. In theory they were lucky be
So we continue our journey to understand the nature of buffer cache and forcing DBWR process to write our changes to disk. If you want to follow this thread – you should get familiar with at least those blog po
Check out those charts: During my last performance tuning audit I found out that database is consuming big amounts of CPU on parsing. One of the queries that took significant amount of time was rather a small D