We're getting very close to the completion of the max_concurrent fix.

Richard, Not sure what you guys are up to but I sure hope you take the WCG MIP project into consideration before you roll it out. https://www.worldcommunitygrid.org/forums/wcg/viewpostinthread?post=569786
They coded the use of the L3 Cache wrong and it uses 4-5 MB per MIP WU. If you exceed that I've seen BOINC performance cut in half. I have to use max_current in my WCG app_config or I cannot run MIP simulations.

<app_config>
    <app>
        <name>mip1</name>
              <!-- needs 5 MB L3 cache per mip1 WU, use 5-10 -->
              <!-- Xeon E5-2699v4,  L3 Cache = 55 MB -->
        <max_concurrent>10</max_concurrent>
        <fraction_done_exact>1</fraction_done_exact>
 </app>
</app_config>