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| author |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-11-05 16:58:13 +0000 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-11-06 16:43:57 +0000 |
| commit | 0cdd48261daeb17efc528b5de0ac81c8836e8565 (patch) | |
| tree | 806aadd95ab147edc3a7c5af1775d9171f6aa063 /lib/prserv | |
| parent | 72ac9f9227fbfb4dc8b933b357d21aa0e4060959 (diff) | |
| download | bitbake-0cdd48261daeb17efc528b5de0ac81c8836e8565.tar.gz | |
prserv: Use WAL mode
Ideally, we want the PR service to have minimal influence from
queued disk IO. sqlite tends to be paranoid about data loss and
locks/fsync calls. There is a "WAL mode" which changes the journalling
mechanism and would appear much better suited to our use case.
This patch therefore switches the database to use WAL mode. With this
change, write overhead appears significantly reduced.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'lib/prserv')
| -rw-r--r-- | lib/prserv/db.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/prserv/db.py b/lib/prserv/db.py index 3bdc04692..9d6d11526 100644 --- a/lib/prserv/db.py +++ b/lib/prserv/db.py @@ -235,6 +235,7 @@ class PRData(object): self.connection=sqlite3.connect(self.filename, isolation_level="EXCLUSIVE", check_same_thread = False) self.connection.row_factory=sqlite3.Row self.connection.execute("pragma synchronous = off;") + self.connection.execute("PRAGMA journal_mode = WAL;") self._tables={} def __del__(self): |