MPS issue job003505

TitleMPS incurs large overhead on barrier hits
Assigned userGareth Rees
DescriptionMeasuring the cost of a barrier hit on OS X [1] shows that the total time to handle a barrier hit and return control to the client averages 55 microseconds, but of this only about a third of the time is spent in the MPS. The overhead could thus potentially be reduced by choosing a larger quantum.
AnalysisSee [2] and [3] for some analysis.
How foundmanual_test
Evidence[1] <>
[2] <>
[3] <>
Observed in1.110.0
Created byGareth Rees
Created on2013-05-30 18:17:49
Last modified byGareth Rees
Last modified on2013-05-30 18:17:49
History2013-05-30 GDR Created.