From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Subject: [PATCH 08 of 12] xenpaging: start paging in the middle of gfn range
Date: Tue, 07 Jun 2011 11:53:10 +0200 [thread overview]
Message-ID: <f5203dded3b13a33716a.1307440390@probook.site> (raw)
In-Reply-To: <patchbomb.1307440382@probook.site>
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1307437217 -7200
# Node ID f5203dded3b13a33716ae50ef12d766c394f81f5
# Parent 5aae4431bfc0970fd48f856fc4ede547ed4860f3
xenpaging: start paging in the middle of gfn range
Set the starting gfn to somewhere in the middle of the gfn range to
avoid paging during BIOS startup. This can speedup booting of a guest.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
diff -r 5aae4431bfc0 -r f5203dded3b1 tools/xenpaging/policy_default.c
--- a/tools/xenpaging/policy_default.c Tue Jun 07 11:00:16 2011 +0200
+++ b/tools/xenpaging/policy_default.c Tue Jun 07 11:00:17 2011 +0200
@@ -76,6 +76,10 @@ int policy_init(xenpaging_t *paging)
/* Don't page out page 0 */
set_bit(0, bitmap);
+ /* Start in the middle to avoid paging during BIOS startup */
+ current_gfn = max_pages / 2;
+ current_gfn -= paging->num_pages / 2;
+
out:
return rc;
}
next prev parent reply other threads:[~2011-06-07 9:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-07 9:53 [PATCH 00 of 12] xenpaging fixes for xen-unstable Olaf Hering
2011-06-07 9:53 ` [PATCH 01 of 12] xenpaging: correct dropping of pages to avoid full ring buffer Olaf Hering
2011-06-07 9:53 ` [PATCH 02 of 12] xenpaging: do not bounce p2mt to xenpaging Olaf Hering
2011-06-07 9:53 ` [PATCH 03 of 12] xenpaging: remove srand call Olaf Hering
2011-06-07 9:53 ` [PATCH 04 of 12] xenpaging: remove return values from functions that can not fail Olaf Hering
2011-06-07 9:53 ` [PATCH 05 of 12] xenpaging: catch xc_mem_paging_resume errors Olaf Hering
2011-06-07 9:53 ` [PATCH 06 of 12] xenpaging: remove local domain_id variable Olaf Hering
2011-06-07 9:53 ` [PATCH 07 of 12] xenpaging: move num_pages into xenpaging struct Olaf Hering
2011-06-07 9:53 ` Olaf Hering [this message]
2011-06-07 9:53 ` [PATCH 09 of 12] xenpaging: pass integer to xenpaging_populate_page Olaf Hering
2011-06-07 9:53 ` [PATCH 10 of 12] xenpaging: add helper function for unlinking pagefile Olaf Hering
2011-06-07 9:53 ` [PATCH 11 of 12] xenpaging: add watch thread to catch guest shutdown Olaf Hering
2011-06-07 10:23 ` Ian Campbell
2011-06-07 19:07 ` Olaf Hering
2011-06-07 9:53 ` [PATCH 12 of 12] xenpaging: implement stopping of pager by sending SIGTERM/SIGINT Olaf Hering
2011-06-07 12:27 ` [PATCH 00 of 12] xenpaging fixes for xen-unstable Keir Fraser
2011-06-07 13:38 ` Olaf Hering
2011-06-08 16:01 ` Keir Fraser
2011-06-10 7:28 ` Keir Fraser
2011-06-10 11:27 ` Olaf Hering
2011-06-10 12:52 ` Keir Fraser
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f5203dded3b13a33716a.1307440390@probook.site \
--to=olaf@aepfle.de \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).