8322098: os::Linux::print_system_memory_info enhance the THP output with /sys/kernel/mm/transparent_hugepage/hpage_pmd_size

MBaesken · MBaesken · commit 419e01685b36 · 2024-01-18T08:36:12.000Z
8323331: fix typo hpage_pdm_size

Reviewed-by: lucy
Backport-of: b31454e36234091c3827c3b4d07f62345cb0cee4
diff --git a/src/hotspot/os/linux/os_linux.cpp b/src/hotspot/os/linux/os_linux.cpp
@@ -2157,6 +2157,8 @@ void os::Linux::print_system_memory_info(outputStream* st) {
   // https://www.kernel.org/doc/Documentation/vm/transhuge.txt
   _print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/enabled",
                       "/sys/kernel/mm/transparent_hugepage/enabled", st);
+  _print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size",
+                      "/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", st);
   _print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter)",
                       "/sys/kernel/mm/transparent_hugepage/defrag", st);
 }

Original file line number	Diff line number	Diff line change
`@@ -2157,6 +2157,8 @@ void os::Linux::print_system_memory_info(outputStream* st) {`
`2157`	`2157`	`// https://www.kernel.org/doc/Documentation/vm/transhuge.txt`
`2158`	`2158`	`_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/enabled",`
`2159`	`2159`	`"/sys/kernel/mm/transparent_hugepage/enabled", st);`
	`2160`	`+ _print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size",`
	`2161`	`+ "/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", st);`
`2160`	`2162`	`_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter)",`
`2161`	`2163`	`"/sys/kernel/mm/transparent_hugepage/defrag", st);`
`2162`	`2164`	`}`