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#!/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]
}
namespace eval ::tclTestPerf-Timer-Event {
namespace path {::tclTestPerf}
proc test-queue {{reptime {1000 10000}}} {
set howmuch [lindex $reptime 1]
# because of extremely short measurement times by tests below, wait a little bit (warming-up),
# to minimize influence of the time-gradation (just for better dispersion resp. result-comparison)
timerate {after 0} 156
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 0 {after 0 {}}}
# update / after 0 (double generation):
{update; if {![llength [after info]]} break}
# cancel forwards "after idle" / $howmuch idle-events in queue:
setup {set i 0; timerate {set ev([incr i]) [after idle {set foo bar}]} {*}$reptime}
setup {set le $i; set i 0; list 1 .. $le; # cancel up to $howmuch events}
{after cancel $ev([incr i]); if {$i >= $le} break}
cleanup {update; unset -nocomplain ev}
# cancel backwards "after idle" / $howmuch idle-events in queue:
setup {set i 0; timerate {set ev([incr i]) [after idle {set foo bar}]} {*}$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}
# cancel forwards "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; set i 0; list 1 .. $le; # cancel up to $howmuch events}
{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]
_test_run $reptime [string map [list \{*\}\$reptime $reptime \$howmuch $howmuch] {
# event random access: after idle + after info (by $howmuch events)
setup {set i -1; timerate {set ev([incr i]) [after idle {}]} {*}$reptime}
{after info $ev([expr {int(rand()*$i)}])}
cleanup {update; unset -nocomplain ev}
# event random access: after 0 + after info (by $howmuch events)
setup {set i -1; timerate {set ev([incr i]) [after 0 {}]} {*}$reptime}
{after info $ev([expr {int(rand()*$i)}])}
cleanup {update; unset -nocomplain ev}
# end $howmuch events.
cleanup {if [llength [after info]] {error "unexpected: [llength [after info]] events are still there."}}
}]
}
proc test-exec {{reptime 1000}} {
_test_run $reptime {
# after idle + after cancel
{after cancel [after idle {set foo bar}]}
# after 0 + after cancel
{after cancel [after 0 {set foo bar}]}
# after idle + update idletasks
{after idle {set foo bar}; update idletasks}
# after idle + update
{after idle {set foo bar}; update}
# immediate: after 0 + update
{after 0 {set foo bar}; update}
# delayed: after 1 + update
{after 1 {set foo bar}; update}
# empty update:
{update}
# empty update idle tasks:
{update idletasks}
# simple shortest sleep:
{after 0}
}
}
proc test-nrt-capability {{reptime 1000}} {
_test_run $reptime {
# comparison values:
{after 0 {set a 5}; update}
{after 0 {set a 5}; vwait a}
# conditional vwait with very brief wait-time:
{after 1 {set a timeout}; vwait a; expr {$::a ne "timeout" ? 1 : "0[unset ::a]"}}
{after 0 {set a timeout}; vwait a; expr {$::a ne "timeout" ? 1 : "0[unset ::a]"}}
}
}
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} {
test-access [list $reptime $howmuch]
}
test-nrt-capability $reptime
test-long $reptime
puts ""
foreach howmuch { 10000 20000 40000 60000 } {
test-queue [list $reptime $howmuch]
}
puts \n**OK**
}
}; # end of ::tclTestPerf-Timer-Event
# ------------------------------------------------------------------------
# if calling direct:
if {[info exists ::argv0] && [file tail $::argv0] eq [file tail [info script]]} {
array set in {-time 500}
array set in $argv
::tclTestPerf-Timer-Event::test $in(-time)
}
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