Peeking into Linux kernel-land using /proc filesystem for quick’n’dirty troubleshooting | Tanel Poder Consulting

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Peeking into Linux kernel-land using /proc filesystem for quick’n’dirty troubleshooting | Tanel Poder Consulting

This blog entry is about modern Linuxes. In other words RHEL6 equivalents with 2.6.3x kernels and not the ancient RHEL5 with 2.6.18 kernel (wtf?!), which is the most common in enterprises unfortunately. And no, I’m not going to use kernel debuggers or SystemTap scripts here, just plain old “cat /proc/PID/xyz” commands against some useful /proc filesystem entries.
Troubleshooting a “slow” process Here’s one systematic troubleshooting example I reproduced in my laptop. A DBA was wondering why their find command had been running “much slower”, without returning any results for a while. Knowing the environment, we had a hunch, but I got asked about what would be the syste

https://tanelpoder.com/2013/02/21/peeking-into-linux-kernel-land-using-proc-filesystem-for-quickndirty-troubleshooting/

[vishalkanaujia]

great knowledge shared. Thanks so much.

[wubo0067]

Very good, thank you!

[pguggila]

Very helpful. Thanks for sharing this info.