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- .\" $Id$
- .TH LAT_SIG 8 "$Date$" "(c)1994 Larry McVoy" "LMBENCH"
- .SH NAME
- lat_sig \- measure signal handling latencies
- .SH SYNOPSIS
- .B lat_sig
- .I "install|catch|prot"
- .I <file>
- .SH DESCRIPTION
- .B lat_sig
- measures the time to install or catch signals.
- It can also measure the time to handle a memory protection fault.
- .B lat_sig
- only requires the
- .I file
- argument when measuring protection fault latency.
- .SH OUTPUT
- Output formats are like so:
- .ft CB
- .br
- Signal handler installation: 9.564 microseconds
- .br
- Signal handler overhead: 33.484 microseconds
- .br
- Protection fault: 11.925 microseconds
- .ft
- .SH ACKNOWLEDGEMENT
- Funding for the development of
- this tool was provided by Sun Microsystems Computer Corporation.
- .SH "SEE ALSO"
- lmbench(8), sigaction(2), kill(2), mmap(2).
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