HPCC-32933 Only count the first iteration time input processing for t…

…he purposes of lookahead Signed-off-by: Shamser Ahmed <[email protected]>
hpcc-systems · Nov 13, 2024 · 01ecf8a · 01ecf8a
1 parent 07fe69e
commit 01ecf8a
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/thorlcr/activities/loop/thloopslave.cpp b/thorlcr/activities/loop/thloopslave.cpp
@@ -306,8 +306,14 @@ class CLoopSlaveActivity : public CLoopSlaveActivityBase
                 {
                     OwnedConstThorRow ret;
                     {
-                        LookAheadTimer t(slaveTimerStats, timeActivities);
-                        ret.setown(curInput->nextRow());
+                        if (loopCounter==1)
+                        {
+                            // the time used in first iteration is lookahead time
+                            LookAheadTimer t(slaveTimerStats, timeActivities);
+                            ret.setown(curInput->nextRow());
+                        }
+                        else
+                            ret.setown(curInput->nextRow());
                         if (!ret)
                         {
                             ret.setown(curInput->nextRow()); // more cope with groups somehow....