aioinfo(ADM)
aioinfo --
print out asynchronous I/O statistics
Syntax
aioinfo [ raw-device ]
Description
aioinfo prints out information and internal
statistics about AIO configuration 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.
Files
/usr/include/sys/async.h-
definitions for asynchronous I/O
/usr/lib/aiomemlock-
permissions file to control how much memory can be locked by whom
/etc/aiolkinit-
command to lock physical memory for AIO transfers
See also
aio(F),
aio(HW),
aiolkinit(ADM),
aiomemlock(F)
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003