From: Keir Fraser <keir@xen.org>
Date: Tue, 11 Jan 2011 10:32:59 +0000 (+0000)
Subject: xenpaging: print page-in/page-out progress
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~10944
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22Dat/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22Dat?a=commitdiff_plain;h=58097363efc2d53ff5e7379e18955a75679e27eb;p=xen.git

xenpaging: print page-in/page-out progress

Now that DPRINTF is triggered only when the environment variable
XENPAGING_DEBUG is found, make such a debug session actually useful by
printing the entire page-out/page-in process. The 'Got event from Xen'
message alone is not helpful.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
---

diff --git a/tools/xenpaging/xenpaging.c b/tools/xenpaging/xenpaging.c
index dc49dce2e4..01a67ae24e 100644
--- a/tools/xenpaging/xenpaging.c
+++ b/tools/xenpaging/xenpaging.c
@@ -387,6 +387,7 @@ int xenpaging_evict_page(xenpaging_t *paging,
         goto out;
     }
 
+    DPRINTF("evict_page > gfn %lx pageslot %d\n", victim->gfn, i);
     /* Notify policy of page being paged out */
     policy_notify_paged_out(victim->gfn);
 
@@ -427,6 +428,7 @@ static int xenpaging_populate_page(xenpaging_t *paging,
     unsigned char oom = 0;
 
     _gfn = *gfn;
+    DPRINTF("populate_page < gfn %lx pageslot %d\n", _gfn, i);
     do
     {
         /* Tell Xen to allocate a page for the domain */