From: Baoquan He <bhe@redhat.com>
To: kexec@lists.infradead.org
Cc: kumagai-atsushi@mxc.nes.nec.co.jp, Baoquan He <bhe@redhat.com>,
vgoyal@redhat.com
Subject: [Patch v3 6/7] implement a function to print the memory usage
Date: Mon, 28 Jul 2014 16:20:05 +0800 [thread overview]
Message-ID: <1406535606-16303-7-git-send-email-bhe@redhat.com> (raw)
In-Reply-To: <1406535606-16303-1-git-send-email-bhe@redhat.com>
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@redhat.com>
---
makedumpfile.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/makedumpfile.c b/makedumpfile.c
index 84857e0..b5e920d 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -7837,6 +7837,41 @@ 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
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next prev parent reply other threads:[~2014-07-28 8:22 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-28 8:19 [Patch v3 0/7] add a new interface to show the memory usage of 1st kernel Baoquan He
2014-07-28 8:20 ` [Patch v3 1/7] initialize pfn_memhole in get_num_dumpable_cyclic Baoquan He
2014-07-28 8:20 ` [Patch v3 2/7] functions to get crashkernel memory range Baoquan He
2014-08-01 7:32 ` Atsushi Kumagai
2014-08-12 9:25 ` bhe
2014-07-28 8:20 ` [Patch v3 3/7] preparation functions for parsing vmcoreinfo Baoquan He
2014-08-01 7:12 ` Atsushi Kumagai
2014-08-12 9:46 ` bhe
2014-08-12 10:01 ` bhe
2014-08-14 7:37 ` Atsushi Kumagai
2014-08-14 8:15 ` bhe
2014-07-28 8:20 ` [Patch v3 4/7] set vmcoreinfo for kcore Baoquan He
2014-08-01 7:12 ` Atsushi Kumagai
2014-08-12 10:08 ` bhe
2014-07-28 8:20 ` [Patch v3 5/7] prepare the dump loads for kcore analysis Baoquan He
2014-08-01 7:12 ` Atsushi Kumagai
2014-08-12 10:10 ` bhe
2014-07-28 8:20 ` Baoquan He [this message]
2014-07-28 8:20 ` [Patch v3 7/7] add a new interface to show the memory usage of 1st kernel Baoquan He
2014-07-29 12:43 ` Vivek Goyal
2014-07-31 2:32 ` Baoquan He
2014-08-01 7:12 ` Atsushi Kumagai
2014-08-12 10:14 ` bhe
2014-08-21 10:31 ` bhe
2014-08-26 2:28 ` Atsushi Kumagai
2014-08-26 3:22 ` bhe
2014-08-26 6:25 ` Petr Tesarik
2014-08-26 14:12 ` bhe
2014-09-02 6:20 ` Atsushi Kumagai
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