Displaying 3 results from an estimated 3 matches for "page_out".
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cpage_out
2011 Sep 28
2
event channel in xenpaging
...;xc_evtchn_notify()
doesn''t make any difference.So why don''t use vIRQ between dom0 and xen
instead of IDC between dom0 and domU?
2)In your latest patch,[PATCH 9 of 9] xenpaging: watch the domains
/xenpaging/num_pages xenstore value.I found some problems.
a、In main(),you put the page_out process into while(1) and make the
following change.
if ( interrupted )
victims[i].gfn = INVALID_MFN;
- else
- evict_victim(paging, &victims[i], fd, i);
I think the" if ( interrupted )" should remove here.Because once
handling page_in requests,the related victims slot...
2012 Jan 05
3
[PATCH 0 of 2] xenpaging:speed up page-in
The following two patches are about how to speed up in xenpaging when page in pages.
On suse11-64 with 4G memory,if we page out 2G pages,it will cost about 15.5 seconds,
but take 2088 seconds to finish paging in.If page-in costs too much time,it will cause
unmesurable problems when vm or dom0 access the paged_out page,such as BSOD,crash.
What鈥檚 more,the dom0 is always in high I/O pressure.
2012 Jan 05
13
[PATCH] xenpaging:add a new array to speed up page-in in xenpaging
# HG changeset patch
# User hongkaixing<hongkaixing@huawei.com>
# Date 1325149704 -28800
# Node ID 052727b8165ce6e05002184ae894096214c8b537
# Parent 54a5e994a241a506900ee0e197bb42e5f1d8e759
xenpaging:add a new array to speed up page-in in xenpaging
This patch adds a new array named page_out_index to reserve the victim''s index.
When page in a page,it has to go through a for loop from 0 to num_pages to find
the right page to read,and it costs much time in this loop.After adding the
page_out_index array,it just reads the arrry to get the right page,and saves much time.
The foll...