From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
To: qemu-devel@nongnu.org, zhengchuan@huawei.com,
dovmurik@linux.vnet.ibm.com, hgcoin@gmail.com,
zhangjiachen.jaycee@bytedance.com, lvivier@redhat.com,
peterx@redhat.com, stefanha@redhat.com, vgoyal@redhat.com,
jinyan12@huawei.com, ann.zhuangyanying@huawei.com
Cc: quintela@redhat.com
Subject: [PULL 16/26] migration: increase max-bandwidth to 128 MiB/s (1 Gib/s)
Date: Fri, 25 Sep 2020 13:06:45 +0100 [thread overview]
Message-ID: <20200925120655.295142-17-dgilbert@redhat.com> (raw)
In-Reply-To: <20200925120655.295142-1-dgilbert@redhat.com>
From: Laurent Vivier <lvivier@redhat.com>
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>
---
migration/migration.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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. */
--
2.26.2
next prev parent reply other threads:[~2020-09-25 12:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 12:06 [PULL 00/26] migration and friends queue Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 01/26] migration: Properly destroy variables on incoming side Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 02/26] migration: Rework migrate_send_rp_req_pages() function Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 03/26] migration/dirtyrate: setup up query-dirtyrate framwork Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 04/26] migration/dirtyrate: add DirtyRateStatus to denote calculation status Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 05/26] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 06/26] migration/dirtyrate: Add dirtyrate statistics series functions Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 07/26] migration/dirtyrate: move RAMBLOCK_FOREACH_MIGRATABLE into ram.h Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 08/26] migration/dirtyrate: Record hash results for each sampled page Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 09/26] migration/dirtyrate: Compare page hash results for recorded " Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 10/26] migration/dirtyrate: skip sampling ramblock with size below MIN_RAMBLOCK_SIZE Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 11/26] migration/dirtyrate: Implement set_sample_page_period() and is_sample_period_valid() Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 12/26] migration/dirtyrate: Implement calculate_dirtyrate() function Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 13/26] migration/dirtyrate: Implement qmp_cal_dirty_rate()/qmp_get_dirty_rate() function Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 14/26] migration/dirtyrate: Add trace_calls to make it easier to debug Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 15/26] migration: Truncate state file in xen-save-devices-state Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` Dr. David Alan Gilbert (git) [this message]
2020-09-25 12:06 ` [PULL 17/26] migration/tls: save hostname into MigrationState Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 18/26] migration/tls: extract migration_tls_client_create for common-use Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 19/26] migration/tls: add tls_hostname into MultiFDSendParams Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 20/26] migration/tls: extract cleanup function for common-use Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 21/26] migration/tls: add support for multifd tls-handshake Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 22/26] migration/tls: add trace points for multifd-tls Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 23/26] monitor: Use LOCK_GUARD macros Dr. David Alan Gilbert (git)
2023-02-07 13:26 ` Marc-André Lureau
2023-02-07 13:41 ` Dr. David Alan Gilbert
2023-02-07 14:06 ` Marc-André Lureau
2020-09-25 12:06 ` [PULL 24/26] virtiofsd: document cache=auto default Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 25/26] virtiofsd: Used glib "shared" thread pool Dr. David Alan Gilbert (git)
2020-09-25 12:06 ` [PULL 26/26] virtiofsd: Add -o allow_direct_io|no_allow_direct_io options Dr. David Alan Gilbert (git)
2020-09-29 21:53 ` Vivek Goyal
2020-09-30 2:14 ` [External] " Jiachen Zhang
2020-09-25 12:35 ` [PULL 00/26] migration and friends queue no-reply
2020-09-25 14:31 ` Dr. David Alan Gilbert
2020-09-25 16:22 ` Peter Maydell
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