diff options
Diffstat (limited to 'abs/core-testing/tweaker/bin/twk_cpu.pl')
| -rwxr-xr-x | abs/core-testing/tweaker/bin/twk_cpu.pl | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/abs/core-testing/tweaker/bin/twk_cpu.pl b/abs/core-testing/tweaker/bin/twk_cpu.pl new file mode 100755 index 0000000..04a57cc --- /dev/null +++ b/abs/core-testing/tweaker/bin/twk_cpu.pl @@ -0,0 +1,132 @@ +#!/usr/bin/perl -w + +# Copyright 2007, 2008 Robert ("Bob") Igo of StormLogic, LLC and mythic.tv. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +use Switch; +use Tweaker::Script; +package Tweaker::Script; + +set_known_options( 'low', 'medium', 'high' ); + +# These values are in BOGOMIPS. They are arbitrary and will be refined, if possible, +# as more data is collected. Obviously, BOGOMIPS are not the best CPU benchmarking +# tool. +my $rrd_threshold = 1650; # bogomips at or below this mean rrdtool is too much of a strain +#my $rrd_threshold = 3365; + +my $low_threshold = 2500; +my $medium_threshold = 4050; +my $high_threshold = 7400; + +# Poll the system to find the CPU type. Currently, we use bogomips (the bogosity of which +# is in the name itself) to guess how powerful the CPU is. +sub get_CPU_strength { + my $bogomips=0; + my @results = split("\n", execute_shell_command("cat /proc/cpuinfo | grep bogomips")); + foreach my $result (@results) { # Count the bogomips for each core. Again, this is rough. + if ($result =~ /bogomips\s*:\s*(\d+.\d+)/) { + $bogomips+=$1; + } + } + return $bogomips; +} + +# ??? Need to test for storage groups and LVM +# Specific to KnoppMyth +sub get_HDD_size { + my @HDD_info = split(" +", execute_shell_command("df -h /myth | grep myth")); + + chop($HDD_info[1]); + return($HDD_info[1] || 0); +} + +#sub disable_rrdtool { +# +#} + +# Try to implement the given option. +sub implement_option { + my($option) = @_; + + # ??? This will need some work to properly integrate with MythTV 0.21's own CPU-based playback settings. + # For now, set profile to CPU++ no matter what CPU type, and just change what CPU++ provides. + + $dbconnectionstring = get_mythtv_connection_string(); + + if (connect_to_db("DBI:mysql:$dbconnectionstring")) { + switch ($option) { + case "low" { + change_or_make_setting('AutoCommflagWhileRecording', '0') || exit -1; + change_or_make_setting('Theme', 'Iulius') || exit -1; # Low eye candy, high performance + #change_or_make_setting('PreferredMPEG2Decoder', 'libmpeg2') || exit -1; # Least CPU usage, lowest quality + #change_or_make_entry("displayprofiles", [["pref_decoder", "libmpeg2"]], [["profilegroupid", "1"], ["profileid", "1"]]) || exit -1; # Least CPU usage, lowest quality + change_or_make_setting('DefaultVideoPlaybackProfile', 'CPU--') || exit -1; # best playback defaults for weak hardware + # Should libmpeg2/ffmpeg be triggered based on CPU type? libmpeg2 is usually + # recommended for AMD CPUs. + # ??? when to use xvmc? + + # Weak CPUs may actually be too weak to run rrdtool without causing problems. +# if (get_CPU_strength() <= $rrd_threshold) { +# disable_rrdtool(); +# } + } + case "medium" { + change_or_make_setting('AutoCommflagWhileRecording', '0') || exit -1; + change_or_make_setting('Theme', 'blootubelite-wide') || exit -1; # Moderate eye candy, moderate performance + #change_or_make_setting('PreferredMPEG2Decoder', 'libmpeg2') || exit -1; # Least CPU usage, lowest quality + #change_or_make_entry("displayprofiles", [["pref_decoder", "libmpeg2"]], [["profilegroupid", "1"], ["profileid", "1"]]) || exit -1; # Least CPU usage, lowest quality + change_or_make_setting('DefaultVideoPlaybackProfile', 'CPU+') || exit -1; # best playback defaults for average hardware + # ??? when to use xvmc? + } + case "high" { + change_or_make_setting('AutoCommflagWhileRecording', '1') || exit -1; + # ??? Interacts with screen aspect ratio + change_or_make_setting('Theme', 'blootube-wide') || exit -1; # High eye candy, potentially low performance + #change_or_make_entry("displayprofiles", [["pref_decoder", "ffmpeg"]], [["profilegroupid", "1"], ["profileid", "1"]]) || exit -1; # Most CPU usage, best quality + #change_or_make_setting('PreferredMPEG2Decoder', 'ffmpeg') || exit -1; # Most CPU usage, best quality + change_or_make_setting('DefaultVideoPlaybackProfile', 'CPU++') || exit -1; # best playback defaults for powerful hardware + # ??? when to use xvmc? + } + } + change_or_make_setting('UseXvMcVld', '0') || exit -1; + #change_or_make_entry("displayprofiles", [["pref_deint0", "onefield"]], [["profilegroupid", "1"], ["profileid", "1"]]) || exit -1; # Most CPU usage, best quality + change_or_make_setting('OSDTheme', 'blootube-osd') || exit -1; + change_or_make_setting('PlayBoxShading', '0') || exit -1; + change_or_make_setting('PlaybackExitPrompt', '2') || exit -1; + } else { + exit -1; + } + disconnect_from_db(); +} + +# Try to get a Recommendation Level for $option. +sub poll_options { + my($option) = @_; + + threshold_test($option, get_CPU_strength(), "CPU", $low_threshold, $medium_threshold, $high_threshold); +} + +# Unimplemented in 0.7 +sub check_option { + help; +} + +# Unimplemented in 0.7 +sub count_iterations { + help; +} + +process_parameters; |