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authorLaurent Vivier <lvivier@redhat.com>2020-09-21 16:49:57 +0200
committerDr. David Alan Gilbert <dgilbert@redhat.com>2020-09-25 12:45:58 +0100
commit7590a2ae091fde8bb72d5df93977ab9707e23242 (patch)
tree84ff6b54a463718dc57e9a7cdce5deefa0721264 /migration/migration.c
parentb4deb9bf8d97dbee07781e90e2089c6410ea9098 (diff)
migration: increase max-bandwidth to 128 MiB/s (1 Gib/s)
max-bandwidth is set by default to 32 MiB/s (256 Mib/s) since 2008 (5bb7910af031c). Most of the CPUs can dirty memory faster than that now, and this is clearly a problem with POWER where the page size is 64 kiB and not 4 KiB. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20200921144957.979989-1-lvivier@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/migration.c')
-rw-r--r--migration/migration.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/migration/migration.c b/migration/migration.c
index 827f8be07d..de34c995af 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -57,7 +57,7 @@
#include "qemu/queue.h"
#include "multifd.h"
-#define MAX_THROTTLE (32 << 20) /* Migration transfer speed throttling */
+#define MAX_THROTTLE (128 << 20) /* Migration transfer speed throttling */
/* Amount of time to allocate to each "chunk" of bandwidth-throttled
* data. */