Introduce print_mem_usage to print the result of analysis of /proc/kcore.
The page number of memory in different use are printed.
Signed-off-by: Baoquan He <bhe at redhat.com>
---
makedumpfile.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/makedumpfile.c b/makedumpfile.c
index a511179..c8d1299 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -7939,6 +7939,41 @@ print_report(void)
REPORT_MSG("\n");
}
+static void
+print_mem_usage(void)
+{
+ mdf_pfn_t pfn_original, pfn_excluded, shrinking;
+
+ /*
+ * /proc/vmcore doesn't contain the memory hole area.
+ */
+ pfn_original = info->max_mapnr - pfn_memhole;
+
+ pfn_excluded = pfn_zero + pfn_cache + pfn_cache_private
+ + pfn_user + pfn_free + pfn_hwpoison;
+ shrinking = (pfn_original - pfn_excluded) * 100;
+ shrinking = shrinking / pfn_original;
+
+ MSG("\n");
+ MSG("Page number of memory in different use\n");
+ MSG("--------------------------------------------------\n");
+ MSG("TYPE PAGES EXCLUDABLE DESCRIPTION\n");
+
+ MSG("ZERO %-16llu yes Pages filled with zero\n", pfn_zero);
+ MSG("CACHE %-16llu yes Cache pages\n", pfn_cache);
+ MSG("CACHE_PRIVATE %-16llu yes Cache pages + private\n",
+ pfn_cache_private);
+ MSG("USER %-16llu yes User process pages\n", pfn_user);
+ MSG("FREE %-16llu yes Free pages\n", pfn_free);
+ MSG("KERN_DATA %-16llu no Dumpable kernel data \n",
+ pfn_original - pfn_excluded);
+
+ MSG("\n");
+
+ MSG("Total pages on system: %-16llu\n", pfn_original);
+ MSG("\n");
+}
+
int
writeout_dumpfile(void)
{
--
1.8.5.3
