Re: ids11.5 enable AIO on AIX 6.1

If you use COOKED device or filesystem files for chunks you will only get KAIO enabled if you include the following ONCONFIG parameter: DIRECT_IO 1 Also, for best performance on AIX though you should set: DIRECT_IO 2 Instead so that IDS also enables the AIX CONCURRENT IO feature. Art Art S. Kagel Advanced DataTools (www.advancedatatools.com) IIUG Board of Directors (art@iiug.org) See you at the 2010 IIUG Informix Conference April 25-28, 2010 Overland Park (Kansas City), KS www.iiug.org/conf Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Advanced DataTools, the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Mon, Mar 1, 2010 at 4:21 AM, joe <joeclhua@gmail.com> wrote: > #onstat -g iov > > IBM Informix Dynamic Server Version 11.50.FC6 -- On-Line -- Up > 00:01:14 -- 501344 Kbytes > > AIO I/O vps:> class/vp/id s io/s totalops dskread dskwrite dskcopy wakeups io/ > wup errors tempops > fifo 7 0 i 0.0 0 0 0 0 1 > 0.0 0 0 > msc 6 0 i 0.0 1 0 0 0 2 > 0.5 0 1 > aio 5 0 i 2.9 214 19 145 0 214 > 1.0 0 0 > aio 8 1 i 0.0 3 0 3 0 3 > 1.0 0 0 > pio 4 0 i 0.0 2 0 2 0 3 > 0.7 0 2 > lio 3 0 i 0.0 2 0 2 0 3 > 0.7 0 2 > > I used cooked device. > _______________________________________________ > Informix-list mailing list > Informix-list@iiug.org > http://www.iiug.org/mailman/listinfo/informix-list >