c29d517558
unmodified. For others we'll need to add the missing probes and adjust. This is not attached to the build.
144 lines
2.9 KiB
D
Executable File
144 lines
2.9 KiB
D
Executable File
#!/usr/sbin/dtrace -s
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/*
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* wpm.d - Measure words per minute of typing.
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* Written in DTrace (Solaris 10 3/05).
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*
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* $Id: wpm.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
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*
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* USAGE: wpm.d commandname
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* eg,
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* wpm.d bash
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* wpm.d vim
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*
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* This script assumes that keystrokes arrive one at a time on STDIN. This
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* isn't the case for all processes that read keyboard input (eg, sh).
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*
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* COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 05-Aug-2007 Brendan Gregg Created this.
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*/
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#pragma D option quiet
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#pragma D option switchrate=10
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#pragma D option defaultargs
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inline int STDIN = 0;
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enum tracing_state {
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BEGIN,
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TRACING
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};
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dtrace:::BEGIN
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/$$1 == ""/
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{
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trace("USAGE: wpm.d commandname\n");
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trace(" eg,\n");
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trace(" wpm.d bash\n");
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trace(" wpm.d vim\n");
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exit(1);
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}
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dtrace:::BEGIN
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{
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state = BEGIN;
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keys = 0;
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words = 0;
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wordsize = 0;
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countdown = 5;
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last = 0;
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printf("Measuring will start in : %2d seconds", countdown);
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}
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profile:::tick-1sec
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/--countdown >= 0/
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{
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printf("\b\b\b\b\b\b\b\b\b\b%2d seconds", countdown);
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}
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profile:::tick-1sec
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/state == BEGIN && countdown == -1/
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{
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state = TRACING;
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countdown = 60;
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printf("\nMeasuring will stop in : %2d seconds", countdown);
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}
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syscall::read:entry
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/state == TRACING && execname == $$1 && arg0 == STDIN/
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{
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self->buf = arg1;
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}
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syscall::read:return
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/self->buf && last/
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{
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this->elapsed = (timestamp - last) / 1000000;
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@dist = quantize(this->elapsed);
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@avg = avg(this->elapsed);
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@min = min(this->elapsed);
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@max = max(this->elapsed);
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}
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syscall::read:return
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/self->buf/
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{
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keys++;
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wordsize++;
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this->key = stringof(copyin(self->buf, arg0));
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last = timestamp;
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}
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syscall::read:return
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/self->buf && (this->key == " " || this->key == "\n" || this->key == "\r") &&
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wordsize == 1/
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{
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/* recurring space */
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wordsize = 0;
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self->buf = 0;
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}
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syscall::read:return
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/self->buf && (this->key == " " || this->key == "\n" || this->key == "\r")/
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{
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words++;
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@sizes = lquantize(wordsize - 1, 0, 32, 1);
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wordsize = 0;
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}
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syscall::read:return
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/self->buf/
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{
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self->buf = 0;
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}
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profile:::tick-1sec
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/state == TRACING && countdown == -1/
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{
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printf("\n\nCharacters typed : %d\n", keys);
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printf("Words per minute : %d\n\n", words);
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printa("Minimum keystroke latency : %@d ms\n", @min);
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printa("Average keystroke latency : %@d ms\n", @avg);
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printa("Maximum keystroke latency : %@d ms\n\n", @max);
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printa("Word size distribution (letters),\n%@d\n", @sizes);
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printa("Keystroke latency distribution (ms),\n%@d\n", @dist);
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exit(0);
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}
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