57 lines
2.1 KiB
Diff
57 lines
2.1 KiB
Diff
From 60e1b84487fead757b5feaf0e55448338f2b2671 Mon Sep 17 00:00:00 2001
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From: Laurent Vivier <lvivier@redhat.com>
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Date: Mon, 28 Sep 2020 11:06:48 -0400
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Subject: [PATCH 1/2] migration: increase max-bandwidth to 128 MiB/s (1 Gib/s)
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RH-Author: Laurent Vivier <lvivier@redhat.com>
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Message-id: <20200928110648.342290-1-lvivier@redhat.com>
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Patchwork-id: 98494
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O-Subject: [RHEL-AV-8.3.0 qemu-kvm PATCH] migration: increase max-bandwidth to 128 MiB/s (1 Gib/s)
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Bugzilla: 1874004
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
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RH-Acked-by: Greg Kurz <gkurz@redhat.com>
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max-bandwidth is set by default to 32 MiB/s (256 Mib/s)
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since 2008 (5bb7910af031c).
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Most of the CPUs can dirty memory faster than that now,
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and this is clearly a problem with POWER where the page
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size is 64 kiB and not 4 KiB.
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Signed-off-by: Laurent Vivier <lvivier@redhat.com>
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Message-Id: <20200921144957.979989-1-lvivier@redhat.com>
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Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
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Reviewed-by: Greg Kurz <groug@kaod.org>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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(cherry picked from commit 7590a2ae091fde8bb72d5df93977ab9707e23242)
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Signed-off-by: Laurent Vivier <lvivier@redhat.com>
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BREW: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=31576368
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BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1874004
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Upstream: Merged
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Tested: checked a migration while an installation is running can end
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before the end of installation
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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migration/migration.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/migration/migration.c b/migration/migration.c
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index 7a89ce39a76..8193f33f768 100644
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--- a/migration/migration.c
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+++ b/migration/migration.c
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@@ -57,7 +57,7 @@
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#include "qemu/queue.h"
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#include "multifd.h"
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-#define MAX_THROTTLE (32 << 20) /* Migration transfer speed throttling */
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+#define MAX_THROTTLE (128 << 20) /* Migration transfer speed throttling */
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/* Amount of time to allocate to each "chunk" of bandwidth-throttled
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* data. */
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--
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2.27.0
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