RH-Author: Laurent Vivier <lvivier@redhat.com>
Message-id: <20200317170518.9303-1-lvivier@redhat.com>
Patchwork-id: 94374
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH] migration: Rate limit inside host pages
Bugzilla: 1814336
RH-Acked-by: Peter Xu <peterx@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
When using hugepages, rate limiting is necessary within each huge
page, since a 1G huge page can take a significant time to send, so
you end up with bursty behaviour.
Fixes: 4c011c37ecb3 ("postcopy: Send whole huge pages")
Reported-by: Lin Ma <LMa@suse.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit 97e1e06780e70f6e98a0d2df881e0c0927d3aeb6)
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1814336
BRANCH: rhel-av-8.2.0
UPSTREAM: Merged
BREW: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=27283241
TESTED: Tested that the migration abort doesn't trigger an error message in
the kernel logs on P9
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
