Linux

Linux

Linux BPF/bcc for Oracle Tracing

Topic: In this post you will find a short discussion and pointers to the code of a few sample scripts that I have written using Linux BPF/bcc and uprobes for Orac

canali Thu, 05/26/2016 - 17:25
Linux Perf Probes for Oracle Tracing

 Topic: this post is about Linux perf and uprobes for tracing and profiling Oracle workloads for advanced troubleshooting.

 

Context

canali Thu, 01/21/2016 - 11:06
Linux Kernel Stack Profiling and Flame Graphs Applied to Oracle Investigations

Topic: This blog post is about kernel stack profiling and visualization with flame graphs.

canali Fri, 10/23/2015 - 15:50
XFS on RHEL6 for Oracle - solving issue with direct I/O

Recently we were refreshing our recovery system infrastructure, by moving automatic recoveries to new servers, with big bunch of disks directly connected to each of them. Everything went fine until we started to run recoveries - they were much slower than before, even though they were running on more powerful hardware. We started investigation and found some misconfigurations, but after correcting them, performance gain was still too small.

sskorupi Tue, 09/15/2015 - 14:55

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