Created
June 11, 2014 10:20
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dtrace keystrokes
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#!/usr/sbin/dtrace -s | |
syscall::read:entry | |
/execname == "sh" || execname == "ksh" || execname == "csh" || | |
execname == "tcsh" || execname == "zsh" || execname == "bash"/ | |
{ | |
self->start = timestamp; | |
self->buf = arg1; | |
self->len = arg2; | |
} | |
syscall::read:return | |
/self->start && self->len == 1/ | |
{ | |
this->elapsed = timestamp - self->start; | |
@edist = quantize(this->elapsed / 1000000); | |
this->text = (char *) copyin(self->buf, self->len); | |
@ldist[stringof(this->text)] = quantize(this->elapsed / 1000000); | |
printf("%d ms %s letter", this->elapsed / 1000000, stringof(this->text)); | |
self->start = 0; | |
self->buf = NULL; | |
self->len = 0; | |
} |
Author
palmerabollo
commented
Jun 11, 2014
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