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| author | Hyman Huang(黄勇) <yong.huang@smartx.com> | 2023-06-08 00:12:40 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2023-07-26 10:55:56 +0200 |
| commit | acac51ba246ad1046c69de9e0b1a7e8523e2de99 (patch) | |
| tree | 760261d865e26c97e1178e2d9aebecad9ca288e3 /migration/migration.c | |
| parent | 310ad5625e107568a0204ec1e1623e267fad3a9a (diff) | |
| download | qemu-acac51ba246ad1046c69de9e0b1a7e8523e2de99.zip qemu-acac51ba246ad1046c69de9e0b1a7e8523e2de99.tar.gz qemu-acac51ba246ad1046c69de9e0b1a7e8523e2de99.tar.bz2 | |
migration: Implement dirty-limit convergence algo
Implement dirty-limit convergence algo for live migration,
which is kind of like auto-converge algo but using dirty-limit
instead of cpu throttle to make migration convergent.
Enable dirty page limit if dirty_rate_high_cnt greater than 2
when dirty-limit capability enabled, Disable dirty-limit if
migration be canceled.
Note that "set_vcpu_dirty_limit", "cancel_vcpu_dirty_limit"
commands are not allowed during dirty-limit live migration.
Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <168733225273.5845.15871826788879741674-7@git.sr.ht>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/migration.c')
| -rw-r--r-- | migration/migration.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c index ae49d42..4933225 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -166,6 +166,9 @@ void migration_cancel(const Error *error) if (error) { migrate_set_error(current_migration, error); } + if (migrate_dirty_limit()) { + qmp_cancel_vcpu_dirty_limit(false, -1, NULL); + } migrate_fd_cancel(current_migration); } |