> Capacity: 120.9 GB > Speed: 7200 rpm > Average Read Time:8.5 ms > ... > From this data nothing justifies the 120ms update of the record!
Look at 7200 rpm and here http://www.sqlite.org/faq.html#q19. Pavel On Wed, Feb 3, 2010 at 1:18 PM, a1rex <a1rex2...@yahoo.com> wrote: > > Thank you kindly for all your suggestions! > >>If you want SQLite to support all ACID properties you cannot change >>anything to speed up updates. > > Making sure that I do not loose a character was my primary objective. > >> If you are doing bulk updates, and are in a position to re-run the >> data in case of an error, wrap batches of 100 or more in a transaction. >> Just be sure to handle any error case that trips an automatic rollback. > >>Make all your updates within a single transaction. > > I will try to do something to that extent using timer and character counter. > I hoped that I could update the text stored in the database character by > character as fast as they > come from the keyboard driver. Unfortunately updates noticeably slow down the > display of typed characters. > >>As a test, have you tried wrapping your updates in a transaction? >> That would isolate if the slow down is the actual writing of the data to >>disk. > > It appears that single transaction is slow and I have to > make less transaction with more data. > >>Where is the file sitting: A local drive, or something across a network >>connection? > > File is sitting on a local drive. It is IDE Seagate 120MB drive – ST3120026A > > Capacity: 120.9 GB > Speed: 7200 rpm > Average Read Time:8.5 ms > Cylinders:1023 > Heads:256 > Sectors: 63 > > · I/O data transfer rate - up to 100 Mbps > · Sustained data transfer rate - Up to 58 Mbps > · Average seek time - 8.5ms > · Average latency - 4.16ms > > From this data nothing justifies the 120ms update of the record! > > Thank you again. > > Regards, > Samuel > > > __________________________________________________________________ > The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo! > Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/ > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
