[KDB-506] read load attribution spike #4649
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…ind it on the workitem instead (so that it can vary depending on the user) (not actually setting it in the workitem yet)
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…o store the tracker in the reader but it makes more sense to do this in the lease
…ll end up in the OS page cache and not the Disk
timothycoleman
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We capture metrics of #events and #bytes read - this spike breaks these metrics down by user and source (file / chunk cache) to make it easier to see which applications are causing load, and especially disk load.
We also now capture reads for replication