Determining typing latency Post: 302539422

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Top Forums UNIX for Advanced & Expert Users Determining typing latency Post 302539422 by mirni on Sunday 17th of July 2011 11:14:27 AM

07-17-2011

Registered User

Is there a particular reason you are after a relative metric? Why not look at absolute delay?
I mean, as you said before, the delay on a local box is super small, practically zero. If you'll try to calculate a quotient (remote delay)/(local delay), you'll get huge numbers, and very large inaccuracy.
An absolute measure of the delay would be a much more accurate one, in terms of numerical stability.
However, I believe the ping echoes are given lower priority than let's say, the data being transferred through ssh -X session, so ping need not be the same as your text editing delay, nevertheless, under normal network and processing load, it should come pretty close.

mirni

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pam_faildelay

PAM_FAILDELAY(8)						 Linux-PAM Manual						  PAM_FAILDELAY(8)

NAME

       pam_faildelay - Change the delay on failure per-application

SYNOPSIS

       pam_faildelay.so [debug] [delay=microseconds]

DESCRIPTION

       pam_faildelay is a PAM module that can be used to set the delay on failure per-application.

       If no delay is given, pam_faildelay will use the value of FAIL_DELAY from /etc/login.defs.

OPTIONS

       debug
	   Turns on debugging messages sent to syslog.

       delay=N
	   Set the delay on failure to N microseconds.

MODULE TYPES PROVIDED

       Only the auth module type is provided.

RETURN VALUES

       PAM_IGNORE
	   Delay was successful adjusted.

       PAM_SYSTEM_ERR
	   The specified delay was not valid.

EXAMPLES

       The following example will set the delay on failure to 10 seconds:

	   auth  optional  pam_faildelay.so  delay=10000000

SEE ALSO

       pam_fail_delay(3), pam.conf(5), pam.d(5), pam(8)

AUTHOR

       pam_faildelay was written by Darren Tucker <dtucker@zip.com.au>.

Linux-PAM Manual						    09/19/2013							  PAM_FAILDELAY(8)

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