On Wed, Oct 17, 2012 at 11:04 AM, Bob Price <rjp_em...@yahoo.com> wrote:
> It appears that regardless of a "pragma synchronous=off" that there are > still syncs to disk done at key points in WAL mode such as in a "pragma > wal_checkpoint(RESTART)". I think that this is true based on the > application cpu and disk I/O patterns I observe when logging shows the wal > checkpoint to be in progress, while running on a Linux host with tons of > free memory available for its file cache. > I ran test cases using "strace" and they show no fsyncs occurring when synchronous=off. Do you have a script that shows an fsync (or fdatasync) using strace? > > Is this true? Is there any way to configure a connection so that these > syncs do not happen in WAL mode? > > Thanks, > Bob > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
