From cf721d23cc90e7848b0611180b9777d080a1faf6 Mon Sep 17 00:00:00 2001
From: Daniel Black <daniel.black@au.ibm.com>
Date: Thu, 10 Dec 2015 17:00:14 +1100
Subject: [PATCH] MDEV-9257: Increase limit on parallel workers in
 mysql-test-run

Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
---
 mysql-test/mysql-test-run.pl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index 26b31d34d3c..63b18c6bebd 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -1801,9 +1801,12 @@ sub set_build_thread_ports($) {
   if ( lc($opt_build_thread) eq 'auto' ) {
     my $found_free = 0;
     $build_thread = 300;	# Start attempts from here
+    my $build_thread_upper = $build_thread + ($opt_parallel > 1500
+                                              ? 3000
+                                              : 2 * $opt_parallel);
     while (! $found_free)
     {
-      $build_thread= mtr_get_unique_id($build_thread, 349);
+      $build_thread= mtr_get_unique_id($build_thread, $build_thread_upper);
       if ( !defined $build_thread ) {
         mtr_error("Could not get a unique build thread id");
       }