call mtr.add_suppression("InnoDB: Failed to set .*DIRECT");
select @@innodb_flush_method;
@@innodb_flush_method
O_DIRECT
create table t(a serial) engine=innodb;
FLUSH TABLES;
# restart: --innodb-flush-method=5
select @@innodb_flush_method;
@@innodb_flush_method
O_DIRECT_NO_FSYNC
insert into t values(0);
FLUSH TABLES;
# restart: --innodb-flush-method=0
select @@innodb_flush_method;
@@innodb_flush_method
fsync
drop table t;