# HG changeset patch
# User rschmelter
# Date 1553257398 25200
#      Fri Mar 22 05:23:18 2019 -0700
# Node ID c17dd6ddc90e9ff12f678bfc44d87a2f192be2e6
# Parent  96c45aa6105654bf5c06e983cbbfdc94de8a844f
8221325: Add information about swap space to print_memory_info() on MacOS
Summary: Added swap space information on MacOS
Reviewed-by:

diff --git a/src/hotspot/os/bsd/os_bsd.cpp b/src/hotspot/os/bsd/os_bsd.cpp
--- a/src/hotspot/os/bsd/os_bsd.cpp
+++ b/src/hotspot/os/bsd/os_bsd.cpp
@@ -1592,6 +1592,8 @@
 }
 
 void os::print_memory_info(outputStream* st) {
+  xsw_usage swap_usage;
+  size_t size = sizeof(swap_usage);
 
   st->print("Memory:");
   st->print(" %dk page", os::vm_page_size()>>10);
@@ -1600,6 +1602,16 @@
             os::physical_memory() >> 10);
   st->print("(" UINT64_FORMAT "k free)",
             os::available_memory() >> 10);
+
+  if(sysctlbyname("vm.swapusage", &swap_usage, &size, NULL, 0) == 0) {
+    if (size >= offsetof(xsw_usage, xsu_used)) {
+      st->print(", swap " UINT64_FORMAT "k",
+                ((julong) swap_usage.xsu_total) >> 10);
+      st->print("(" UINT64_FORMAT "k free)",
+                ((julong) swap_usage.xsu_avail) >> 10);
+    }
+  }
+
   st->cr();
 }