Igor Canadi 4a855c0799 Add an option wal_bytes_per_sync to control sync_file_range for WAL files ... Summary: sync_file_range is not always asyncronous and thus can block writes if we do this for WAL in the foreground thread. See more here: http://yoshinorimatsunobu.blogspot.com/2014/03/how-syncfilerange-really-works.html Some users don't want us to call sync_file_range on WALs. Some other do. Thus, I'm adding a separate option wal_bytes_per_sync to control calling sync_file_range on WAL files. bytes_per_sync will apply only to table files now. Test Plan: no more sync_file_range for WAL as evidenced by strace Reviewers: yhchiang, rven, sdong Reviewed By: sdong Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D38253		2015-05-18 17:03:59 -07:00
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rocksdb	Add an option wal_bytes_per_sync to control sync_file_range for WAL files	2015-05-18 17:03:59 -07:00
utilities	Fix iOS compile with -Wshorten-64-to-32	2014-11-13 14:39:30 -05:00