Bug #5078: C#.Net: This "Evaluate()" statement take more time and memory consumption in 9.9.1.8 version. - Saxon - Saxonica Developer Community

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Bug #5078

closed

C#.Net: This "Evaluate()" statement take more time and memory consumption in 9.9.1.8 version.

Added by Dipak Shinde over 3 years ago. Updated over 3 years ago.

Status:

Duplicate

Priority:

High

Assignee:

Michael Kay

Category:

.NET API

Sprint/Milestone:

9.9.1.8

Start date:

2021-09-03

Due date:

% Done:

Estimated time:

Legacy ID:

Applies to branch:

9.9

Fix Committed on Branch:

Fixed in Maintenance Release:

Platforms:

Description

1. A per our business logic we have created rule(Xquery) and we are evaluating this with the help of evaluate method. 2 XQuery:

let $gReturnDataState := element{'ReturnDataState'} {''} let $gSchA...................

for $ReturnDataState at $currentReturnDataStatePos in if(....................

let $genSchA := false() let $genAllRealTangibleProperty...........

x:AllPropEndYrTotal x:ReturnState/x:ReturnDataState/x:SchA/x:AllRealTangibleProperty/x:AllPropEndYrTotal {$AllPropEndYrTotalData} ....................................

Code: XdmValue evaluations = evaluator.Evaluate();

For few rules XQuery execution takes greater than 30GB memory.

Files

Saxon API Query.txt (995 Bytes) Saxon API Query.txt

Dipak Shinde, 2021-09-03 11:50

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Updated by Dipak Shinde over 3 years ago

File Saxon API Query.txt Saxon API Query.txt added

Please find the attachment for XQuery.

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Updated by Michael Kay over 3 years ago

We can't investigate a problem unless we can reproduce it. A query with lots of ellipses (....) is no use for diagnostics. With performance problems, the devil is always in the detail, so we need all the detail.

Your question says "9.9.1.8 takes more time and memory" but you haven't said what you are comparing with or how you are measuring it.

The biggest factor affecting memory use is usually the size of the source document being queried. How big is the source document?

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