From: Olaf Hering <olaf@aepfle.de>
To: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH] tools/libxc: send page-in requests in batches in linux_privcmd_map_foreign_bulk
Date: Fri, 27 Jan 2012 13:35:53 +0100 [thread overview]
Message-ID: <20120127123553.GA28750@aepfle.de> (raw)
In-Reply-To: <55d685d4f7e551ab7c854c509a63f895.squirrel@webmail.lagarcavilla.org>
On Thu, Jan 26, Andres Lagar-Cavilla wrote:
> You could pass the whole arr sub-segment encompassing the first and last
> gfn that failed with ENOENT. Successful maps within that array will be
> re-done by the hypervisor, at no correctness cost. I would imagine that
> the extra work is offset by the gains, but that remains to be seen.
I just tried it once again, and as xenpaging is written now a live
migration of an idle 512MB guest with 90MB paging target was done in
less than a minute. Previously it took a very long time, 2MB/sec. were
sent over the wire.
Olaf
next prev parent reply other threads:[~2012-01-27 12:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.1648.1327589466.1471.xen-devel@lists.xensource.com>
2012-01-26 16:30 ` [PATCH] tools/libxc: send page-in requests in batches in linux_privcmd_map_foreign_bulk Andres Lagar-Cavilla
2012-01-26 16:38 ` Olaf Hering
2012-01-26 16:58 ` Andres Lagar-Cavilla
2012-01-26 17:02 ` Olaf Hering
2012-01-27 12:35 ` Olaf Hering [this message]
2012-03-26 13:22 Olaf Hering
2012-04-02 16:41 ` Ian Jackson
-- strict thread matches above, loose matches on Subject: below --
2012-01-26 14:51 Olaf Hering
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