STAT161(1)

NAME
stat161 - System/161 status monitor

SYNOPSIS
stat161 [-i interval]

DESCRIPTION
The stat161 program prints hardware counters from a running System/161 process. If no such process is running in the current directory, stat161 waits until one starts, polling once per second. If the System/161 process exits, stat161 disconnects from it and waits for another to start.

The -i interval option sets the reporting interval in seconds of virtual time; valid values are between 0.00001 (10 microseconds) and 2. The default is 0.2.

The counters printed are as follows:
nsec
    Virtual time in nanoseconds.
kinsns
    Instructions retired in supervisor (kernel) mode.
uinsns
    Instructions retired in user mode.
udud
    Unproductive cycles spent in user mode. (These represent instructions that were interrupted and aborted.)
idle
    Cycles spent idle.
irqs
    Number of interrupts taken.
exns
    Nunmber of processor exceptions taken.
disk
    Number of disk I/Os.
con Number of console I/Os.
emu Number of emufs I/Os.
net Number of network I/Os.
The values printed are totals across all CPUs.

FILES
.sockets/meter
    The socket used to read information.

SEE ALSO
sys161(1)

BUGS
The set of counters printed and the print interval are fixed. The print interval depends on the internal timing of System/161 and may thus vary depending on workload.