aioinfo(ADM)                    19 June 1992                    aioinfo(ADM)


 Name

    aioinfo - print out AIO statistics

 Syntax

    aioinfo [ raw-device ]

 Description

    aioinfo prints out information and internal statistics about AIO configu-
    ration and use.  By default, it opens /dev/rroot to get a file descriptor
    for the AIO ioctl; if this is not accessible, or if support for AIO is
    not linked into the kernel, an alternate AIO disk partition name must be
    specified.

    The following is sample output:

       total aio_info slots            5
       active aio_info slots           2
       number of memory locks          1
       total locked memory             65536
       total ureq structures           120
       active ureq structures          23
       free ureq structures            97
       cumulative ureq usage           51843
       maximum ureq usage              73
       total aio buf structures        120
       free aio buf structures         97

    In this output, two processes are currently doing AIO. One has 65536
    bytes of memory locked, the other does not have a memory lock. 23 AIO
    requests are currently pending. 51843 AIO requests have been issued since
    the machine was booted, and the maximum number of simultaneous pending
    AIO requests since boot was 73.

 See also

    aio(M), aiolkinit(ADM), aiomemlock(F)