0% caching
Posted in 1992
Heres one that has me stumped. We are running Online, on an AST 486 with Interactive Unix. We have been tuning tbconfig to help some performance problems, and last experiment showed something odd. When we changed BUFFERS from 512 to 2048, % cached (disk writes), flopped to 0%. I've never seen such a thing. Can anyone offer a suggestion why buffered write would be smaller than disk writes? I can add a full tbstat -a listing, if more information is necessary. Naomi ------------------------------------------------------------------------- RSAM Version 4.10.UD2 -- On-Line -- Up 05:16:22 -- 5536 Kbytes Profile BIGreads dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached 57 12143 14763 692592 98.25 9076 18262 7884 0.00 isamtot open start read write rewrite delete commit rollbk 659834 39115 75693 225430 767 1805 138 101261 3 ovtbls ovlock ovuser ovbuff usercpu syscpu numckpts flushes 0 0 0 0 2.61 1.16 187 1189 bufwaits lokwaits lockreqs deadlks dltouts lchwaits ckpwaits compress 1 55 1059028 0 0 125 22 78 -- Naomi Walker (aka N7FSA) naomi%anasaz.UUCP@asuvax.eas.asu.edu Enthusiasm is caught, In tennis, not taught. love means nothing.