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qemu-e2k/migration
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Keqian Zhu cbbf818224 migration/throttle: Add cpu-throttle-tailslow migration parameter 
At the tail stage of throttling, the Guest is very sensitive to
CPU percentage while the @cpu-throttle-increment is excessive
usually at tail stage.

If this parameter is true, we will compute the ideal CPU percentage
used by the Guest, which may exactly make the dirty rate match the
dirty rate threshold. Then we will choose a smaller throttle increment
between the one specified by @cpu-throttle-increment and the one
generated by ideal CPU percentage.

Therefore, it is compatible to traditional throttling, meanwhile
the throttle increment won't be excessive at tail stage. This may
make migration time longer, and is disabled by default.

Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Message-Id: <20200413101508.54793-1-zhukeqian1@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
 		2020-05-07 17:40:24 +01:00
..
Makefile.objs multifd: Add zstd compression multifd support 2020-02-28 09:25:49 +01:00
block-dirty-bitmap.c block/dirty-bitmap: refactor bdrv_dirty_bitmap_next 2019-10-17 17:02:32 -04:00
block.c migration/block: rename BLOCK_SIZE macro 2020-02-28 09:25:49 +01:00
block.h migration: disable auto-converge during bulk block migration 2017-09-27 11:27:14 +01:00
channel.c migration: fix the multifd code when receiving less channels 2019-01-23 15:02:07 +00:00
channel.h migration: Route errors down through migration_channel_connect 2018-02-06 10:55:12 +00:00
colo-failover.c migration/colo.c: Remove redundant input parameter 2019-05-14 17:33:35 +01:00
colo.c migration/colo: Add missing error-propagation code 2020-05-07 17:40:24 +01:00
exec.c migration: unify incoming processing 2018-07-10 12:48:53 +01:00
exec.h migration: Export exec.c functions in its own file 2017-06-01 18:49:22 +02:00
fd.c migration: Fix fd protocol for incoming defer 2019-06-05 12:43:55 +02:00
fd.h migration: Fix fd protocol for incoming defer 2019-06-05 12:43:55 +02:00
global_state.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
migration.c migration/throttle: Add cpu-throttle-tailslow migration parameter 2020-05-07 17:40:24 +01:00
migration.h multifd: Add multifd-zstd-level parameter 2020-02-28 09:25:28 +01:00
multifd-zlib.c multifd: Add zlib compression multifd support 2020-02-28 09:24:43 +01:00
multifd-zstd.c multifd: Add zstd compression multifd support 2020-02-28 09:25:49 +01:00
multifd.c lockable: replaced locks with lock guard macros where appropriate 2020-05-04 16:07:43 +01:00
multifd.h multifd: Add zstd compression multifd support 2020-02-28 09:25:49 +01:00
page_cache.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
page_cache.h migration: Make cache_init() take an error parameter 2017-10-23 18:03:25 +02:00
postcopy-ram.c core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
postcopy-ram.h migration/postcopy: rename postcopy_ram_enable_notify to postcopy_ram_incoming_setup 2019-10-11 14:59:58 +01:00
qemu-file-channel.c Header cleanup patches for 2019-08-13 2019-08-16 14:53:43 +01:00
qemu-file-channel.h migration: Export qemu-file-channel.c functions in its own file 2017-05-18 19:20:50 +02:00
qemu-file.c migration/compress: compress QEMUFile is not writable 2020-01-29 11:28:59 +01:00
qemu-file.h Header cleanup patches for 2019-08-13 2019-08-16 14:53:43 +01:00
qjson.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
qjson.h migration: fix vmdesc leak on vmstate_save() error 2019-09-25 15:51:19 +01:00
ram.c migration/throttle: Add cpu-throttle-tailslow migration parameter 2020-05-07 17:40:24 +01:00
ram.h COLO: Optimize memory back-up process 2020-03-13 09:36:30 +00:00
rdma.c migration/rdma: rdma_accept_incoming_migration fix error handling 2020-02-13 10:55:55 +01:00
rdma.h migration: Export rdma.c functions in its own file 2017-06-01 18:49:23 +02:00
savevm.c migration/savevm: release gslist after dump_vmstate_json 2020-02-28 09:25:49 +01:00
savevm.h migration: Optimization about wait-unplug migration state 2020-02-13 10:53:10 +01:00
socket.c multifd: Use number of channels as listen backlog 2019-09-03 23:24:42 +02:00
socket.h migration: Export functions to create send channels 2018-05-15 20:24:27 +02:00
tls.c migration: add support for a "tls-authz" migration parameter 2019-03-25 18:13:47 +01:00
tls.h migration: Export tls.c functions in its own file 2017-06-01 18:49:23 +02:00
trace-events migration: Support QLIST migration 2020-01-20 09:10:23 +01:00
vmstate-types.c migration: Simplify get_qlist 2020-01-29 11:28:59 +01:00
vmstate.c migration/vmstate: Remove redundant statement in vmstate_save_state_v() 2020-02-28 09:25:49 +01:00
xbzrle.c migration: Create migration/xbzrle.h 2017-05-18 18:04:54 +02:00
xbzrle.h migration: Create migration/xbzrle.h 2017-05-18 18:04:54 +02:00