system version is 12.0 U2
# sysctl -a -d vfs.zfs | grep dirty_data
vfs.zfs.dirty_data_sync_percent: Dirty data txg sync threshold as a percentage of zfs_dirty_data_max
vfs.zfs.dirty_data_max_max: zfs_dirty_data_max upper bound in bytes
vfs.zfs.dirty_data_max: Determines the dirty space limit
vfs.zfs.dirty_data_max_max_percent: zfs_dirty_data_max upper bound as % of RAM
vfs.zfs.dirty_data_max_percent: Max percent of RAM allowed to be dirty
vfs.zfs.dirty_data_sync is missing, or is it replaced by any other parameter?
# sysctl -a -d vfs.zfs | grep dirty_data
vfs.zfs.dirty_data_sync_percent: Dirty data txg sync threshold as a percentage of zfs_dirty_data_max
vfs.zfs.dirty_data_max_max: zfs_dirty_data_max upper bound in bytes
vfs.zfs.dirty_data_max: Determines the dirty space limit
vfs.zfs.dirty_data_max_max_percent: zfs_dirty_data_max upper bound as % of RAM
vfs.zfs.dirty_data_max_percent: Max percent of RAM allowed to be dirty
vfs.zfs.dirty_data_sync is missing, or is it replaced by any other parameter?