Sumx Performance Issue

[HelpSumxWrong]

Hey all,

I'm having some performance issues with Sumx that are causing very slow measure performance as was wondering if you smart people would know of a better way to accomplish these



TestMeasure=

'Take the slicer selection date'
VAR CalculationDate= [SelectedDate]

'Calculate USD values, no need to lookup anything
VAR CalcResult=
CALCULATE (
SUM ( Data[Amount] ),
FILTER ( VALUES ( Data[Currency] ), [Currency] = "USD" ),
FILTER (
VALUES ( Date[Due] ),
&& [Due] <= CalculationDate
))

'Perform NonUSD
+ CALCULATE (
SUMX (
'Data',
(
Data[Amount]
*
'find numerator of exchange rate
LOOKUPVALUE (
FXMarketRates[Multiplier],
FXMarketRates[FromTo], Data[Currency],
FXMarketRates[Eff Date], CalculationDate,
FXMarketRates[Rate Type], "CRRNT"
)
)
/

'find denom of exchange rate
LOOKUPVALUE (
FXMarketRates[Divisor],
FXMarketRates[FromTo], Data[Currency],
FXMarketRates[Eff Date], CalculationDate,
FXMarketRates[Rate Type], "CRRNT"
)
),
FILTER ( VALUES ( Data[Currency] ), [Currency] <> "USD" ),
FILTER (

VALUES ( Data[Due] ), [Due] <= CalculationDate
))

RETURN
IF ( ROUND ( CalcResult, 2 ) <> 0, ROUND ( CalcResult, 2 ) ) + 0

[Greg_Deckler]

@HelpSumxWrong - Might be better if you gave us the sample source data and what you are trying to accomplish. Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.

[amitchandak]

@HelpSumxWrong , lookup inside the sumx.  Can be costly.

See if you can create a new column for that lookup and use that.

[HelpSumxWrong]

 you. Unfortunately the lookup is based off a slicer slection which is used as the date variable so I dont believe a calculated column would work, although correct me if I'm wrong

[v-lili6-msft]

HI @HelpSumxWrong 

Could you please share your sample pbix file for us have a test? that will be a great help.

Regards,

Lin