# Typical Performance between Ignition and AB SLC 5/05

**URL:** <https://forum.inductiveautomation.com/t/typical-performance-between-ignition-and-ab-slc-5-05/17262>\
**Category:** Ignition\
**Created:** [March 7, 2018, 5:01pm UTC](https://forum.inductiveautomation.com/t/typical-performance-between-ignition-and-ab-slc-5-05/17262 "2018-03-07T17:01:58Z")\
**Posts on this page:** 1\
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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [March 7, 2018, 5:24pm UTC](https://forum.inductiveautomation.com/t/typical-performance-between-ignition-and-ab-slc-5-05/17262/3 "2018-03-07T17:24:10Z")

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Check “Comms Servicing Selection” and “MSG Servicing Selection” for channel 1 (S:2/15 & S:33/7). If either is set, it will crush your throughput, as only one request will be processed per scan (Comms) or per certain control flow instructions (MSG).

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