Tcl Source Code

.TP
\fI-calibrate\fR
.
To measure very fast scripts as exact as posible the calibration process
may be required.

The \fI-calibrate\fR option is used to calibrate timerate, calculating the
estimated overhead of the given script as the default overhead for future 
invocations of the \fBtimerate\fR command. If the \fItime\fR parameter is not 
specified, the calibrate procedure runs for up to 10 seconds.
.TP
\fI-overhead double\fR
.
The \fI-overhead\fR parameter supplies an estimate (in microseconds) of the
measurement overhead of each iteration of the tested script. This quantity
will be subtracted from the measured time prior to reporting results.

.TP
\fI-calibrate\fR
.
To measure very fast scripts as exact as posible the calibration process
may be required.

The \fI-calibrate\fR option is used to calibrate timerate, calculating the
estimated overhead of the given script as the default overhead for future
invocations of the \fBtimerate\fR command. If the \fItime\fR parameter is not
specified, the calibrate procedure runs for up to 10 seconds.
.TP
\fI-overhead double\fR
.
The \fI-overhead\fR parameter supplies an estimate (in microseconds) of the
measurement overhead of each iteration of the tested script. This quantity
will be subtracted from the measured time prior to reporting results.

    NOTE(REG_ULOCALE);

    /*
     * Search table.
     */

    Tcl_DStringInit(&ds);
    np = Tcl_UniCharToUtfDString(startp, (int)len, &ds);
    for (cn=cnames; cn->name!=NULL; cn++) {
	if (strlen(cn->name)==len && strncmp(cn->name, np, len)==0) {
	    break;			/* NOTE BREAK OUT */
	}
    }
    Tcl_DStringFree(&ds);
    if (cn->name != NULL) {

    NOTE(REG_ULOCALE);

    /*
     * Search table.
     */

    Tcl_DStringInit(&ds);
    np = Tcl_UniCharToUtfDString(startp, len, &ds);
    for (cn=cnames; cn->name!=NULL; cn++) {
	if (strlen(cn->name)==len && strncmp(cn->name, np, len)==0) {
	    break;			/* NOTE BREAK OUT */
	}
    }
    Tcl_DStringFree(&ds);
    if (cn->name != NULL) {

	 */

	if (TclIsPureByteArray(objv[1])) {
	    unsigned char uch = (unsigned char) ch;

	    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(&uch, 1));
	} else {
	    char buf[TCL_UTF_MAX] = "";

	    length = Tcl_UniCharToUtf(ch, buf);
	    if ((ch >= 0xD800) && (length < 3)) {
		length += Tcl_UniCharToUtf(-1, buf + length);
	    }
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, length));
	}

	 */

	if (TclIsPureByteArray(objv[1])) {
	    unsigned char uch = (unsigned char) ch;

	    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(&uch, 1));
	} else {
	    char buf[4] = "";

	    length = Tcl_UniCharToUtf(ch, buf);
	    if ((ch >= 0xD800) && (length < 3)) {
		length += Tcl_UniCharToUtf(-1, buf + length);
	    }
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, length));
	}

	} else if (TclIsPureByteArray(valuePtr)) {
	    objResultPtr = Tcl_NewByteArrayObj(
		    Tcl_GetByteArrayFromObj(valuePtr, NULL)+index, 1);
	} else if (valuePtr->bytes && length == valuePtr->length) {
	    objResultPtr = Tcl_NewStringObj((const char *)
		    valuePtr->bytes+index, 1);
	} else {
	    char buf[TCL_UTF_MAX] = "";
	    int ch = Tcl_GetUniChar(valuePtr, index);

	    /*
	     * This could be: Tcl_NewUnicodeObj((const Tcl_UniChar *)&ch, 1)
	     * but creating the object as a string seems to be faster in
	     * practical use.
	     */

	} else if (TclIsPureByteArray(valuePtr)) {
	    objResultPtr = Tcl_NewByteArrayObj(
		    Tcl_GetByteArrayFromObj(valuePtr, NULL)+index, 1);
	} else if (valuePtr->bytes && length == valuePtr->length) {
	    objResultPtr = Tcl_NewStringObj((const char *)
		    valuePtr->bytes+index, 1);
	} else {
	    char buf[4] = "";
	    int ch = Tcl_GetUniChar(valuePtr, index);

	    /*
	     * This could be: Tcl_NewUnicodeObj((const Tcl_UniChar *)&ch, 1)
	     * but creating the object as a string seems to be faster in
	     * practical use.
	     */

		{
		    /*
		     * There are chars leading the buffer before the eof char.
		     * Adjust the dstLimit so we go back and read only those
		     * and do not encounter the eof char this time.
		     */

		    dstLimit = dstRead - 1 + TCL_UTF_MAX;
		    statePtr->flags = savedFlags;
		    statePtr->inputEncodingFlags = savedIEFlags;
		    statePtr->inputEncodingState = savedState;
		    continue;
		}
	    }

................................................................................
		/*
		 * There are chars we can read before we hit the bare CR.  Go
		 * back with a smaller dstLimit so we get them in the next
		 * pass, compute a matching srcRead, and don't end up back
		 * here in this call.
		 */

		dstLimit = dstRead - 1 + TCL_UTF_MAX;
		statePtr->flags = savedFlags;
		statePtr->inputEncodingFlags = savedIEFlags;
		statePtr->inputEncodingState = savedState;
		continue;
	    }

	    assert(dstWrote == 0);
................................................................................
	     * TODO: This cannot happen anymore.
	     *
	     * We read more chars than allowed.  Reset limits to prevent that
	     * and try again.  Don't forget the extra padding of TCL_UTF_MAX
	     * bytes demanded by the Tcl_ExternalToUtf() call!
	     */

	    dstLimit = Tcl_UtfAtIndex(dst, charsToRead) - 1 + TCL_UTF_MAX - dst;
	    statePtr->flags = savedFlags;
	    statePtr->inputEncodingFlags = savedIEFlags;
	    statePtr->inputEncodingState = savedState;
	    continue;
	}

	if (dstWrote == 0) {

		{
		    /*
		     * There are chars leading the buffer before the eof char.
		     * Adjust the dstLimit so we go back and read only those
		     * and do not encounter the eof char this time.
		     */

		    dstLimit = dstRead + (TCL_UTF_MAX - 1);
		    statePtr->flags = savedFlags;
		    statePtr->inputEncodingFlags = savedIEFlags;
		    statePtr->inputEncodingState = savedState;
		    continue;
		}
	    }

................................................................................
		/*
		 * There are chars we can read before we hit the bare CR.  Go
		 * back with a smaller dstLimit so we get them in the next
		 * pass, compute a matching srcRead, and don't end up back
		 * here in this call.
		 */

		dstLimit = dstRead + (TCL_UTF_MAX - 1);
		statePtr->flags = savedFlags;
		statePtr->inputEncodingFlags = savedIEFlags;
		statePtr->inputEncodingState = savedState;
		continue;
	    }

	    assert(dstWrote == 0);
................................................................................
	     * TODO: This cannot happen anymore.
	     *
	     * We read more chars than allowed.  Reset limits to prevent that
	     * and try again.  Don't forget the extra padding of TCL_UTF_MAX
	     * bytes demanded by the Tcl_ExternalToUtf() call!
	     */

	    dstLimit = Tcl_UtfAtIndex(dst, charsToRead) - dst + (TCL_UTF_MAX - 1);
	    statePtr->flags = savedFlags;
	    statePtr->inputEncodingFlags = savedIEFlags;
	    statePtr->inputEncodingState = savedState;
	    continue;
	}

	if (dstWrote == 0) {

		    numChars = precision;
		    Tcl_IncrRefCount(segment);
		    allocSegment = 1;
		}
	    }
	    break;
	case 'c': {
	    char buf[TCL_UTF_MAX] = "";
	    int code, length;

	    if (TclGetIntFromObj(interp, segment, &code) != TCL_OK) {
		goto error;
	    }
	    length = Tcl_UniCharToUtf(code, buf);
	    if ((code >= 0xD800) && (length < 3)) {

		    numChars = precision;
		    Tcl_IncrRefCount(segment);
		    allocSegment = 1;
		}
	    }
	    break;
	case 'c': {
	    char buf[4] = "";
	    int code, length;

	    if (TclGetIntFromObj(interp, segment, &code) != TCL_OK) {
		goto error;
	    }
	    length = Tcl_UniCharToUtf(code, buf);
	    if ((code >= 0xD800) && (length < 3)) {

#!/usr/bin/tclsh
# ------------------------------------------------------------------------
#
# test-performance.tcl --
# 
#  This file provides common performance tests for comparison of tcl-speed
#  degradation by switching between branches.
#  (currently for clock ensemble only)
#
# ------------------------------------------------------------------------
# 
# Copyright (c) 2014 Serg G. Brester (aka sebres)
# 
# See the file "license.terms" for information on usage and redistribution
# of this file.
# 

array set in {-time 500}
if {[info exists ::argv0] && [file tail $::argv0] eq [file tail [info script]]} {
  array set in $argv
}

## common test performance framework:
................................................................................
    {clock scan "5 years 18 months 385 days next 1 January" -base 0 -gmt 1}
    # FreeScan : relative date with ordinal month and relative weekday
    {clock scan "5 years 18 months 385 days next January Fri" -base 0 -gmt 1}
    # FreeScan : ordinal month
    {clock scan "next January" -base 0 -gmt 1}
    # FreeScan : relative week
    {clock scan "next Fri" -base 0 -gmt 1}
    # FreeScan : relative weekday and week offset 
    {clock scan "next January + 2 week" -base 0 -gmt 1}
    # FreeScan : time only with base
    {clock scan "19:18:30" -base 148863600 -gmt 1}
    # FreeScan : time only without base, gmt
    {clock scan "19:18:30" -gmt 1}
    # FreeScan : time only without base, system
    {clock scan "19:18:30"}
................................................................................
    {clock format [clock scan "19:18:30" -base 148863600 -timezone EST] -timezone MST}
    {clock format [clock scan "19:18:30" -base 148863600 -timezone MST] -timezone EST}
    # Convert TZ: included in scan string & format
    {clock format [clock scan "19:18:30 EST" -base 148863600] -format "%H:%M:%S %z" -timezone MST}
    {clock format [clock scan "19:18:30 EST" -base 148863600] -format "%H:%M:%S %z" -timezone EST}

    # Format locale 1x: comparison values
    {clock format 0 -gmt 1 -locale en} 
    {clock format 0 -gmt 1 -locale de}
    {clock format 0 -gmt 1 -locale fr}
    # Format locale 2x: without switching locale (en, en)
    {clock format 0 -gmt 1 -locale en; clock format 0 -gmt 1 -locale en}
    # Format locale 2x: with switching locale (en, de)
    {clock format 0 -gmt 1 -locale en; clock format 0 -gmt 1 -locale de}
    # Format locale 3x: without switching locale (en, en, en)
................................................................................
    # FreeScan TZ 2x (+1 system-default): without switching TZ
    {clock scan "19:18:30 MST" -base 148863600; clock scan "19:18:30 MST" -base 148863600}
    {clock scan "19:18:30 EST" -base 148863600; clock scan "19:18:30 EST" -base 148863600}
    # FreeScan TZ 2x (+1 system-default): with switching TZ
    {clock scan "19:18:30 MST" -base 148863600; clock scan "19:18:30 EST" -base 148863600}
    # FreeScan TZ 2x (+1 gmt, +1 system-default)
    {clock scan "19:18:30 MST" -base 148863600 -gmt 1; clock scan "19:18:30 EST" -base 148863600}
    
    # Scan TZ: comparison included in scan string vs. given
    {clock scan "2009-06-30T18:30:00 CEST" -format "%Y-%m-%dT%H:%M:%S %z"}
    {clock scan "2009-06-30T18:30:00 CET" -format "%Y-%m-%dT%H:%M:%S %z"}
    {clock scan "2009-06-30T18:30:00" -timezone CET -format "%Y-%m-%dT%H:%M:%S"}
  }
}

#!/usr/bin/tclsh
# ------------------------------------------------------------------------
#
# test-performance.tcl --
#
#  This file provides common performance tests for comparison of tcl-speed
#  degradation by switching between branches.
#  (currently for clock ensemble only)
#
# ------------------------------------------------------------------------
#
# Copyright (c) 2014 Serg G. Brester (aka sebres)
#
# See the file "license.terms" for information on usage and redistribution
# of this file.
#

array set in {-time 500}
if {[info exists ::argv0] && [file tail $::argv0] eq [file tail [info script]]} {
  array set in $argv
}

## common test performance framework:
................................................................................
    {clock scan "5 years 18 months 385 days next 1 January" -base 0 -gmt 1}
    # FreeScan : relative date with ordinal month and relative weekday
    {clock scan "5 years 18 months 385 days next January Fri" -base 0 -gmt 1}
    # FreeScan : ordinal month
    {clock scan "next January" -base 0 -gmt 1}
    # FreeScan : relative week
    {clock scan "next Fri" -base 0 -gmt 1}
    # FreeScan : relative weekday and week offset
    {clock scan "next January + 2 week" -base 0 -gmt 1}
    # FreeScan : time only with base
    {clock scan "19:18:30" -base 148863600 -gmt 1}
    # FreeScan : time only without base, gmt
    {clock scan "19:18:30" -gmt 1}
    # FreeScan : time only without base, system
    {clock scan "19:18:30"}
................................................................................
    {clock format [clock scan "19:18:30" -base 148863600 -timezone EST] -timezone MST}
    {clock format [clock scan "19:18:30" -base 148863600 -timezone MST] -timezone EST}
    # Convert TZ: included in scan string & format
    {clock format [clock scan "19:18:30 EST" -base 148863600] -format "%H:%M:%S %z" -timezone MST}
    {clock format [clock scan "19:18:30 EST" -base 148863600] -format "%H:%M:%S %z" -timezone EST}

    # Format locale 1x: comparison values
    {clock format 0 -gmt 1 -locale en}
    {clock format 0 -gmt 1 -locale de}
    {clock format 0 -gmt 1 -locale fr}
    # Format locale 2x: without switching locale (en, en)
    {clock format 0 -gmt 1 -locale en; clock format 0 -gmt 1 -locale en}
    # Format locale 2x: with switching locale (en, de)
    {clock format 0 -gmt 1 -locale en; clock format 0 -gmt 1 -locale de}
    # Format locale 3x: without switching locale (en, en, en)
................................................................................
    # FreeScan TZ 2x (+1 system-default): without switching TZ
    {clock scan "19:18:30 MST" -base 148863600; clock scan "19:18:30 MST" -base 148863600}
    {clock scan "19:18:30 EST" -base 148863600; clock scan "19:18:30 EST" -base 148863600}
    # FreeScan TZ 2x (+1 system-default): with switching TZ
    {clock scan "19:18:30 MST" -base 148863600; clock scan "19:18:30 EST" -base 148863600}
    # FreeScan TZ 2x (+1 gmt, +1 system-default)
    {clock scan "19:18:30 MST" -base 148863600 -gmt 1; clock scan "19:18:30 EST" -base 148863600}

    # Scan TZ: comparison included in scan string vs. given
    {clock scan "2009-06-30T18:30:00 CEST" -format "%Y-%m-%dT%H:%M:%S %z"}
    {clock scan "2009-06-30T18:30:00 CET" -format "%Y-%m-%dT%H:%M:%S %z"}
    {clock scan "2009-06-30T18:30:00" -timezone CET -format "%Y-%m-%dT%H:%M:%S"}
  }
}

# ------------------------------------------------------------------------
#
# test-performance.tcl --
# 
#  This file provides common performance tests for comparison of tcl-speed
#  degradation or regression by switching between branches.
#
#  To execute test case evaluate direct corresponding file "tests-perf\*.perf.tcl".
#
# ------------------------------------------------------------------------
# 
# Copyright (c) 2014 Serg G. Brester (aka sebres)
# 
# See the file "license.terms" for information on usage and redistribution
# of this file.
# 

namespace eval ::tclTestPerf {
# warm-up interpeter compiler env, calibrate timerate measurement functionality:

# if no timerate here - import from unsupported:
if {[namespace which -command timerate] eq {}} {
  namespace inscope ::tcl::unsupported {namespace export timerate}
................................................................................
  puts -nonewline "Calibration ... "; flush stdout
  puts "done: [lrange \
    [timerate -calibrate {}] \
  0 1]"
}

proc {**STOP**} {args} {
  return -code error -level 4 "**STOP** in [info level [expr {[info level]-2}]] [join $args { }]" 
}

proc _test_get_commands {lst} {
  regsub -all {(?:^|\n)[ \t]*(\#[^\n]*|\msetup\M[^\n]*|\mcleanup\M[^\n]*)(?=\n\s*(?:[\{\#]|setup|cleanup|$))} $lst "\n{\\1}"
}

proc _test_out_total {} {

# ------------------------------------------------------------------------
#
# test-performance.tcl --
#
#  This file provides common performance tests for comparison of tcl-speed
#  degradation or regression by switching between branches.
#
#  To execute test case evaluate direct corresponding file "tests-perf\*.perf.tcl".
#
# ------------------------------------------------------------------------
#
# Copyright (c) 2014 Serg G. Brester (aka sebres)
#
# See the file "license.terms" for information on usage and redistribution
# of this file.
#

namespace eval ::tclTestPerf {
# warm-up interpeter compiler env, calibrate timerate measurement functionality:

# if no timerate here - import from unsupported:
if {[namespace which -command timerate] eq {}} {
  namespace inscope ::tcl::unsupported {namespace export timerate}
................................................................................
  puts -nonewline "Calibration ... "; flush stdout
  puts "done: [lrange \
    [timerate -calibrate {}] \
  0 1]"
}

proc {**STOP**} {args} {
  return -code error -level 4 "**STOP** in [info level [expr {[info level]-2}]] [join $args { }]"
}

proc _test_get_commands {lst} {
  regsub -all {(?:^|\n)[ \t]*(\#[^\n]*|\msetup\M[^\n]*|\mcleanup\M[^\n]*)(?=\n\s*(?:[\{\#]|setup|cleanup|$))} $lst "\n{\\1}"
}

proc _test_out_total {} {

#!/usr/bin/tclsh

# ------------------------------------------------------------------------
#
# timer-event.perf.tcl --
# 
#  This file provides performance tests for comparison of tcl-speed
#  of timer events (event-driven tcl-handling).
#
# ------------------------------------------------------------------------
# 
# Copyright (c) 2014 Serg G. Brester (aka sebres)
# 
# See the file "license.terms" for information on usage and redistribution
# of this file.
# 


if {![namespace exists ::tclTestPerf]} {
  source [file join [file dirname [info script]] test-performance.tcl]
}


................................................................................
  puts "*** up to $howmuch events ***"
  # single iteration by update, so using -no-result (measure only):
  _test_run -no-result $reptime [string map [list \{*\}\$reptime $reptime \$howmuch $howmuch \\# \#] {
    # generate up to $howmuch idle-events:
    {after idle {set foo bar}}
    # update / after idle:
    {update; if {![llength [after info]]} break}
    
    # generate up to $howmuch idle-events:
    {after idle {set foo bar}}
    # update idletasks / after idle:
    {update idletasks; if {![llength [after info]]} break}

    # generate up to $howmuch immediate events:
    {after 0 {set foo bar}}
    # update / after 0:
    {update; if {![llength [after info]]} break}
    
    # generate up to $howmuch 1-ms events:
    {after 1 {set foo bar}}
    setup {after 1}
    # update / after 1:
    {update; if {![llength [after info]]} break}

    # generate up to $howmuch immediate events (+ 1 event of the second generation):
................................................................................
    {after cancel $ev([incr i]); if {$i >= $le} break}
    cleanup {update; unset -nocomplain ev}
    # cancel backwards "after 0" / $howmuch timer-events in queue:
    setup {set i 0; timerate {set ev([incr i]) [after 0 {set foo bar}]} {*}$reptime}
    setup {set le $i; incr i; list $le .. 1; # cancel up to $howmuch events}
    {after cancel $ev([incr i -1]); if {$i <= 1} break}
    cleanup {update; unset -nocomplain ev}
    
    # end $howmuch events.
    cleanup {if [llength [after info]] {error "unexpected: [llength [after info]] events are still there."}}
  }]
}

proc test-access {{reptime {1000 5000}}} {
  set howmuch [lindex $reptime 1]
................................................................................

proc test-long {{reptime 1000}} {
  _test_run $reptime {
    # in-between important event by amount of idle events:
    {time {after idle {after 30}} 10; after 1 {set important 1}; vwait important;}
    cleanup {foreach i [after info] {after cancel $i}}
    # in-between important event (of new generation) by amount of idle events:
    {time {after idle {after 30}} 10; after 1 {after 0 {set important 1}}; vwait important;} 
    cleanup {foreach i [after info] {after cancel $i}}
  }
}

proc test {{reptime 1000}} {
  test-exec $reptime
  foreach howmuch {5000 50000} {

#!/usr/bin/tclsh

# ------------------------------------------------------------------------
#
# timer-event.perf.tcl --
#
#  This file provides performance tests for comparison of tcl-speed
#  of timer events (event-driven tcl-handling).
#
# ------------------------------------------------------------------------
#
# Copyright (c) 2014 Serg G. Brester (aka sebres)
#
# See the file "license.terms" for information on usage and redistribution
# of this file.
#


if {![namespace exists ::tclTestPerf]} {
  source [file join [file dirname [info script]] test-performance.tcl]
}


................................................................................
  puts "*** up to $howmuch events ***"
  # single iteration by update, so using -no-result (measure only):
  _test_run -no-result $reptime [string map [list \{*\}\$reptime $reptime \$howmuch $howmuch \\# \#] {
    # generate up to $howmuch idle-events:
    {after idle {set foo bar}}
    # update / after idle:
    {update; if {![llength [after info]]} break}

    # generate up to $howmuch idle-events:
    {after idle {set foo bar}}
    # update idletasks / after idle:
    {update idletasks; if {![llength [after info]]} break}

    # generate up to $howmuch immediate events:
    {after 0 {set foo bar}}
    # update / after 0:
    {update; if {![llength [after info]]} break}

    # generate up to $howmuch 1-ms events:
    {after 1 {set foo bar}}
    setup {after 1}
    # update / after 1:
    {update; if {![llength [after info]]} break}

    # generate up to $howmuch immediate events (+ 1 event of the second generation):
................................................................................
    {after cancel $ev([incr i]); if {$i >= $le} break}
    cleanup {update; unset -nocomplain ev}
    # cancel backwards "after 0" / $howmuch timer-events in queue:
    setup {set i 0; timerate {set ev([incr i]) [after 0 {set foo bar}]} {*}$reptime}
    setup {set le $i; incr i; list $le .. 1; # cancel up to $howmuch events}
    {after cancel $ev([incr i -1]); if {$i <= 1} break}
    cleanup {update; unset -nocomplain ev}

    # end $howmuch events.
    cleanup {if [llength [after info]] {error "unexpected: [llength [after info]] events are still there."}}
  }]
}

proc test-access {{reptime {1000 5000}}} {
  set howmuch [lindex $reptime 1]
................................................................................

proc test-long {{reptime 1000}} {
  _test_run $reptime {
    # in-between important event by amount of idle events:
    {time {after idle {after 30}} 10; after 1 {set important 1}; vwait important;}
    cleanup {foreach i [after info] {after cancel $i}}
    # in-between important event (of new generation) by amount of idle events:
    {time {after idle {after 30}} 10; after 1 {after 0 {set important 1}}; vwait important;}
    cleanup {foreach i [after info] {after cancel $i}}
  }
}

proc test {{reptime 1000}} {
  test-exec $reptime
  foreach howmuch {5000 50000} {

} {65536 65536}

test util-18.12 {Tcl_ObjPrintf} {testprint} {
    testprint "%I64d %Id" 65537
} {65537 65537}

if {[catch {set ::tcl_precision $saved_precision}]} {
    unset ::tcl_precision 
}

# cleanup
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End:

} {65536 65536}

test util-18.12 {Tcl_ObjPrintf} {testprint} {
    testprint "%I64d %Id" 65537
} {65537 65537}

if {[catch {set ::tcl_precision $saved_precision}]} {
    unset ::tcl_precision
}

# cleanup
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: