Originally posted by: johnkati

Hi,
With the change to ioo from aioo in AIX6(http://www.ibm.com/developerworks/aix/library/au-aix6tuning/index.html#N106A2), i am looking for way to get the aio_maxreqs using an API inside a program. On AIX5, i was able to get the same from ODM device using getattr.

I suppose sysconf(_SC_AIO_MAX); doesn't give me the info i am looking for.

o/p of C program with sysconf(_SC_AIO_MAX) = 4096.
o/p of running ioo -a | grep aio_maxreqs : 65536
Thanks for the help in advance.

--John
#AIX-Forum

Originally posted by: styerd

I don't know if it's any better than say, using popen() with ioo, but the values come from /proc/sys/aio/maxreqs, just open and read.
#AIX-Forum

Originally posted by: johnkati

Thanks for the reply.

Can i understand why there is difference in sysconf(_SC_AIO_MAX) and ioo -a values ?
#AIX-Forum