Re: ids11.5 enable AIO on AIX 6.1

joe 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. This is a bit confusing. You are using AIO, but for that you don't need to to anything. You may want to use KAIO, and for that, when using cooked files you'll need to set DIRECT_IO to 1 or 2. 1 will use direct i/o and 2 will also use concurrent I/O (latest version on AIX only if I recall correctly). Regards.

Fernando Nunes wrote: > joe 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. > > This is a bit confusing. You are using AIO, but for that you don't need > to to anything. You may want to use KAIO, and for that, when using > cooked files you'll need to set DIRECT_IO to 1 or 2. 1 will use direct > i/o and 2 will also use concurrent I/O (latest version on AIX only if I > recall correctly). > > Regards. Ups... I should have read this more carefully. I checked the release notes and the URL already provided. So everything is working, and the release notes don't take 6.1 in consideration. Now You may still want to use DIRECT_IO. Please check the manual. Regards.