MPS issue job003892

TitlePool statistics are not used
Statusclosed
Prioritynice
Assigned userGareth Rees
OrganizationRavenbrook
DescriptionEach pool contains four statistics:

    double fillMutatorSize; /* bytes filled, mutator buffers */
    double emptyMutatorSize; /* bytes emptied, mutator buffers */
    double fillInternalSize; /* bytes filled, internal buffers */
    double emptyInternalSize; /* bytes emptied, internal buffers */

These are carefully maintained but not used for decision-making, nor output in the telemetry. Someone who really needed this information could get it out of the telemetry using the BufferFill and BufferEmpty events.
AnalysisThey were added in change 19163 [1], before the telemetry system was in its current state.
How foundinspection
Evidence[1] https://info.ravenbrook.com/infosys/cgi/perfbrowse.cgi?%40describe+19163
Created byGareth Rees
Created on2014-10-14 22:33:30
Last modified byGareth Rees
Last modified on2014-10-14 22:37:55
History2014-10-14 GDR Created.

Fixes

Change Effect Date User Description
187270 closed 2014-10-14 22:37:55 Gareth Rees Remove unused pool {fill,empty}{Mutator,Internal}Size statistics.