Implemented as a standalone DSO module written in C.
The following metrics are available:
Ganglia_metric_cb_define("io_readtot", io_readtot_func);
Ganglia_metric_cb_define("io_readkbtot", io_readkbtot_func);
Ganglia_metric_cb_define("io_writetot",...
This is a Ganglia module written in Python. It reaps performance data from /proc/diskstats and caculates various interesting values. It has been tested on Centos 5.x, but should work on any Linux system that supports /proc/diskstats.
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