Use LDR_CNTRL on AIX to use 64KB pages and modify removeAixExpectedVars

Signed-off-by: Abdulrahman Alattas <[email protected]>
ibmruntimes · Mar 4, 2024 · 90d2ca0 · 90d2ca0
1 parent e84e685
commit 90d2ca0
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/src/java.base/unix/native/libjli/java_md.c b/src/java.base/unix/native/libjli/java_md.c
@@ -25,7 +25,7 @@
 
 /*
  * ===========================================================================
- * (c) Copyright IBM Corp. 2020, 2023 All Rights Reserved
+ * (c) Copyright IBM Corp. 2020, 2024 All Rights Reserved
  * ===========================================================================
  */
 
@@ -312,6 +312,11 @@ CreateExecutionEnvironment(int *pargc, char ***pargv,
  if (setenv(mallocOptionsName, mallocOptionsValue, 0) != 0) {
  fprintf(stderr, "setenv('MALLOCOPTIONS=multiheap,considersize') failed: performance may be affected\n");
  }
+ const char * ldrCntrlName = "LDR_CNTRL";
+ const char *ldrCntrlValue = "TEXTPSIZE=64K@DATAPSIZE=64K@STACKPSIZE=64K@SHMPSIZE=64K";
+ if (setenv(ldrCntrlName, ldrCntrlValue, 0) != 0) {
+ fprintf(stderr, "setenv('LDR_CNTRL=TEXTPSIZE=64K@DATAPSIZE=64K@STACKPSIZE=64K@SHMPSIZE=64K') failed: performance may be affected\n");
+ }
 #endif
 
 #ifdef SETENV_REQUIRED

diff --git a/test/jdk/java/lang/ProcessBuilder/Basic.java b/test/jdk/java/lang/ProcessBuilder/Basic.java
@@ -23,7 +23,7 @@
 
 /*
  * ===========================================================================
- * (c) Copyright IBM Corp. 2020, 2022 All Rights Reserved
+ * (c) Copyright IBM Corp. 2020, 2024 All Rights Reserved
  * ===========================================================================
  */
 
@@ -810,8 +810,9 @@ private static String removeMacExpectedVars(String vars) {
  */
  private static String removeAixExpectedVars(String vars) {
  String cleanedVars = vars.replace("AIXTHREAD_GUARDPAGES=0,", "");
- // OpenJ9 adds MALLOCOPTIONS
+ // OpenJ9 adds MALLOCOPTIONS and LDR_CNTRL
  cleanedVars = cleanedVars.replace("MALLOCOPTIONS=multiheap,considersize,", "");
+ cleanedVars = cleanedVars.replace("LDR_CNTRL=TEXTPSIZE=64K@DATAPSIZE=64K@STACKPSIZE=64K@SHMPSIZE=64K,", "");
  return cleanedVars;
  }