[pcp] [linux_pmda] Added extended disk partition stats for kernel 2.6.25

To:	performancecopilot/pcp <pcp@xxxxxxxxxxxxxxxxxx>
Subject:	[pcp] [linux_pmda] Added extended disk partition stats for kernel 2.6.25 and above (#28)
From:	marcliangma8 <notifications@xxxxxxxxxx>
Date:	Mon, 15 Jun 2015 13:43:13 -0700
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Linux pmda reports less disk IO stats for disk.partitions comparing to disk.dev and disk.dm. Added the following metrics which are currently missing for kernel 2.6.25 and above:

disk.partitions.read_merge
disk.partitions.write_merge
disk.partitions.avactive
disk.partitions.aveq
disk.partitions.read_rawactive
disk.partitions.write_rawactive

Reference:
https://www.kernel.org/doc/Documentation/iostats.txt (Disks vs Partitions)

You can view, comment on, or merge this pull request online at:

https://github.com/performancecopilot/pcp/pull/28

Commit Summary

[linux_pmda] Added extended disk partition stats for kernel 2.6.25 and above.

File Changes

M src/pmdas/linux/help (28)
M src/pmdas/linux/pmda.c (29)
M src/pmdas/linux/proc_partitions.c (48)
M src/pmdas/linux/root_linux (6)

Patch Links:

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[pcp] [linux_pmda] Added extended disk partition stats for kernel 2.6.25 and above (#28), marcliangma8 <= Re: [pcp] [linux_pmda] Added extended disk partition stats for kernel 2.6.25 and above (#28), goodwinos

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