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Use LDR_CNTRL on AIX to use 64KB pages #739

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7 changes: 6 additions & 1 deletion jdk/src/solaris/bin/java_md_solinux.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@

/*
* ===========================================================================
* (c) Copyright IBM Corp. 2020, 2023 All Rights Reserved
* (c) Copyright IBM Corp. 2020, 2024 All Rights Reserved
* ===========================================================================
*/

Expand Down Expand Up @@ -393,6 +393,11 @@ 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
jboolean mustsetenv = JNI_FALSE;
Expand Down