Lidong Chen 1cf6aa74b3 migration/block: Avoid invoking blk_drain too frequently ...

Increase bmds->cur_dirty after submit io, so reduce the frequency
involve into blk_drain, and improve the performance obviously
when block migration.

The performance test result of this patch:

During the block dirty save phase, this patch improve guest os IOPS
from 4.0K to 9.5K. and improve the migration speed from
505856 rsec/s to 855756 rsec/s.

Signed-off-by: Lidong Chen <jemmy858585@gmail.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

2017-03-16 08:58:27 +01:00

..

block.c

migration/block: Avoid invoking blk_drain too frequently

2017-03-16 08:58:27 +01:00

colo-comm.c

COLO: Add 'x-colo-lost-heartbeat' command to trigger failover

2016-10-30 15:17:39 +05:30

colo-failover.c

COLO: Implement the process of failover for primary VM

2016-10-30 15:17:39 +05:30

colo.c

Add a new qmp command to do checkpoint, query xen replication status

2017-02-28 11:02:12 -08:00

exec.c

migration: set name for all I/O channels created

2016-10-27 09:13:10 +02:00

fd.c

migration: set name for all I/O channels created

2016-10-27 09:13:10 +02:00

Makefile.objs

build: remove --enable-colo/--disable-colo

2017-01-16 17:52:35 +01:00

migration.c

migration: use "" as the default for tls-creds/hostname

2017-03-16 08:57:08 +01:00

postcopy-ram.c

postcopy: Add extra check for COPY function

2017-02-28 11:30:24 +00:00

qemu-file-channel.c

migration: introduce a new QEMUFile impl based on QIOChannel

2016-05-26 11:31:24 +05:30

qemu-file.c

add 'release-ram' migrate capability

2017-02-13 17:27:13 +00:00

qjson.c

qjson: free str

2016-08-08 00:00:24 +04:00

ram.c

Change the method to calculate dirty-pages-rate

2017-03-16 08:55:56 +01:00

rdma.c

migration/rdma: Don't flag an error when we've been told about one

2016-10-13 17:22:38 +02:00

savevm.c

postcopy: Transmit ram size summary word

2017-02-28 11:30:23 +00:00

socket.c

io: change the QIOTask callback signature

2017-01-23 15:32:18 +00:00

tls.c

migration: use "" as the default for tls-creds/hostname

2017-03-16 08:57:08 +01:00

trace-events

exec: ram_block_discard_range

2017-02-28 11:30:23 +00:00

vmstate.c

migration/vmstate: fix array of ptr with nullptrs

2017-02-28 11:29:00 +00:00

xbzrle.c

util: move declarations out of qemu-common.h

2016-03-22 22:20:17 +01:00