[email protected] (Shmuel Metz , Seymour J.) writes: > Is that anything like thin film replacing core? Or bubbles? > > Predicting that that a technology will be supplanted is easy. > Accurately predicting what will replace it and when is hard.
lot of DBMS are disk-centric and based on the home position for data is located on disk ... and real memory/storage is used to cache records. with increase in real memory sizes, lots of databases can completely fit in real storage. there has been work on "in memory" databases ... big motivation was the telco industry ... being able to handle call record volumes. there were some benchmarks of these "in memory" databases that might use disks for sequential writing involving logging/recovery ... against standard DBMS that had enough memory/storage to completely cache the full DBMS ... and the "in memory" database still got ten times the thruput ... than disk-centric DBMS (even with all data cached). In the middle/late 90s, there was prediction that the telcos would take over the payment industries ... because the telcos were the only operations (based on scaleup to handle call-record volumes) that were capable of handling the predicted volumes in micro-payments. Once firmly entrenched handling micro-payment volumes ... they would then move upstream to take over the rest of the payment industry. Well, the micro-payment volumes never materialized ... and the telco industry has yet to take over the payment industry. However since then, Oracle has acquired at least one of the "in-memory" DBMS implementations ... and some of the payment processors have deployed backend platforms originally developed to handle the telco call record volumes. -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
