Content-type: text/html Manpage of IOTRACE_UTIL

IOTRACE_UTIL

Section: Misc. Reference Manual Pages (1)
Updated: Oct 2004
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NAME

iotrace_util - control iotrace logging

SYNOPSIS

iotrace_util [OPTIONS...] COMMAND [ARG]

DESCRIPTION

iotrace_util controls the disk I/O tracing activity. It accepts the following command-line options.

-f, --file=TRACEDEV

Set the iotrace device name. Default name is /dev/iotrace. iotrace_util automatically creates the device (via mknod(2)) if the specified iotrace device does not yet exist.

The list of commands supported by iotrace_util are the following.

start DEVICE

Start tracing of DEVICE. Any prior tracing stops (iotrace can trace only one block device at a time). DEVICE must be a block device name, e.g., /dev/sda2.

end

Stop tracing.

flush

Discard the log contents.

trace-size

Show the number of bytes in the trace log.

AUTHOR

Yasushi Saito