On 10/21/19, Jonathan Brandmeyer <jbrandme...@planetiq.com> wrote: > Or, how many times is each page written by SQLite for an insert-heavy > test? The answer appears to be "4", but I can only account for two of > those four.
Are you measuring writes at the OS-interface layer, or writes at the hardware layer? SQLite should issue no more than 2x writes in WAL mode, and less if the same page is modified more than once. But who knows how the OS might be multiplying this to accomplish its own filesystem consistency. Consider compiling the https://www.sqlite.org/src/file/ext/misc/vfslog.c extension into SQLite on a workstation and running your code there, to get more details about everything that SQLite is doing with storage. -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
