3 ms·
> The z15 provides a hardware accelerated approach to sorting using a new CPU coprocessor that can be exploited by software using the new SORTL instruction. By
by twic 6y ago
> The z15 provides a hardware accelerated approach to sorting using a new CPU coprocessor that can be exploited by software using the new SORTL instruction. By providing one sort accelerator per core, frequently used functions can be accelerated to help speed up sorting, shorten batch windows, and improve select database functions such as reorganization.
Having a dedicated coprocessor for sorting is extremely business.
- pdw 6y agoIn case anybody wants a taste of mainframe, here's the manual for the DFSORT utility: https://www-01.ibm.com/servers/resourcelink/svc00100.nsf/pages/zOSV2R3sc236878/$file/icea100_v2r3.pdf https://www-01.ibm.com/servers/resourcelink/svc00100.nsf/pag...
- exikyut 6y ago[Holds down PgDn for ~20 continuous seconds while not blinking] "Reflective" and "surreal" come to mind...
- tyingq 6y agoMore detail on the SORTL instruction: https://www.share.org/blog/peeking-under-the-hood-of-sort-acceleration-on-z15 https://www.share.org/blog/peeking-under-the-hood-of-sort-ac...
- le-mark 6y agoSort in memory constrained environments is interesting from a historical perspective. Mainframes did have small memory compared to data at one time. The solution was “disk sort” a process to sort files in chunks into sub files and merge the sub files into the final sorted file. Sorting is a pretty big deal in batch systems even today.