Hi, I’m sharing my experience with 64 bit 4D 15.5 on Mac OS X during a real life “test” from last Saturday to Monday morning.
We have a database of about 120gb with about 160 simultaneous users. It runs on a bi-processor xServe with SSDs and 64gb of RAM. After testing for a few days, we installed 4D Server 64 bit and went live on Saturday, when only about 30 users are connected. Cache was set to 12 gb, leaving lots of free memory for the OS. Everything seemed to go pretty smoothly and the database was very fast for queries, thanks to the added cache (12 gb instead of 1 gb on 32 bit). The database ran well over the weekend. On Monday morning the users began logging on. When 57 out of 160 users had connected, the database crawled to a near halt. No other users were able to connect and operations which would normally take fractions of a second were taking a minute or more… CPU and network usage seemed normal on the server. Sadly decided to abandon the upgrade and go back to the 32 bit server. I’m guessing the failure of our upgrade is due to the new network layer. We’re considering moving the DB to Windows in hopes that network performance will be better. Cheers, Paul ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
