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ipmi-fancontrol
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fix logic, simplify, add lightness

main
"Riku" 2024-07-31 19:07:47 +03:00
parent 804d918cfa
commit 06533ceba4
1 changed files with 56 additions and 68 deletions
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fancontrol.pl
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@ -16,70 +16,43 @@ use List::Util qw[min max];
`ipmitool sensor thresh FAN4 lower 0 100 200`; `ipmitool sensor thresh FAN4 lower 0 100 200`;
`ipmitool sensor thresh FAN5 lower 0 100 200`; `ipmitool sensor thresh FAN5 lower 0 100 200`;
my $min_temp_change = 4; # *C minimum change to actually cause a fan speed update my $min_temp_change = 2; # °C minimum change to actually cause a fan speed update
my $seconds_to_sleep = 3; # Number of seconds to sleep between update loops my $seconds_to_sleep = 2; # Number of seconds to sleep between update loops
# 0x64 = 100, 0x00 = 0.
# CPU Temp -> Fan Speed Mappings # CPU Temp -> Fan Speed Mappings
my %cpu_temp_to_fan_speed; my %cpu_temp_to_fan_speed;
$cpu_temp_to_fan_speed{75} = 0x64; $cpu_temp_to_fan_speed{80} = 0x64;
$cpu_temp_to_fan_speed{70} = 0x60; $cpu_temp_to_fan_speed{75} = 0x62;
$cpu_temp_to_fan_speed{65} = 0x54; $cpu_temp_to_fan_speed{70} = 0x56;
$cpu_temp_to_fan_speed{60} = 0x52; $cpu_temp_to_fan_speed{65} = 0x52;
$cpu_temp_to_fan_speed{50} = 0x44; $cpu_temp_to_fan_speed{60} = 0x48;
$cpu_temp_to_fan_speed{40} = 0x40; $cpu_temp_to_fan_speed{55} = 0x46;
$cpu_temp_to_fan_speed{50} = 0x42;
$cpu_temp_to_fan_speed{45} = 0x40;
$cpu_temp_to_fan_speed{40} = 0x36;
$cpu_temp_to_fan_speed{35} = 0x34;
$cpu_temp_to_fan_speed{30} = 0x32;
# SYS Temp -> Fan Speed Mappings # SYS Temp -> Fan Speed Mappings
my %sys_temp_to_fan_speed; my %sys_temp_to_fan_speed;
$sys_temp_to_fan_speed{55} = 0x64; $sys_temp_to_fan_speed{66} = 0x64;
$sys_temp_to_fan_speed{50} = 0x50; $sys_temp_to_fan_speed{60} = 0x60;
$sys_temp_to_fan_speed{45} = 0x44; $sys_temp_to_fan_speed{57} = 0x42;
$sys_temp_to_fan_speed{40} = 0x40; $sys_temp_to_fan_speed{55} = 0x40;
$sys_temp_to_fan_speed{52} = 0x36;
$sys_temp_to_fan_speed{50} = 0x34;
$sys_temp_to_fan_speed{47} = 0x32;
$sys_temp_to_fan_speed{45} = 0x30;
$sys_temp_to_fan_speed{30} = 0x28;
# Below this line follows the actual implementation of the script my $g_current_sys_fan_duty_cycle = 0;
my $g_current_cpu_fan_duty_cycle = 0;
my $g_current_fan_duty_cycle = 0;
my $g_current_sys_temp = 0; my $g_current_sys_temp = 0;
my $g_current_cpu_temp = 0; my $g_current_cpu_temp = 0;
my $g_last_set_cpu_temp = 0; my $g_last_set_cpu_temp = 0;
my $g_last_set_sys_temp = 0; my $g_last_set_sys_temp = 0;
sub Internal_DoSetFanSpeedSys {
my ( $fan_speed ) = @_;
`ipmitool raw 0x30 0x70 0x66 0x01 0x01 $fan_speed`;
}
sub Internal_DoSetFanSpeedCpu {
my ( $fan_speed ) = @_;
`ipmitool raw 0x30 0x70 0x66 0x01 0x00 $fan_speed`;
}
sub SetFanSpeed {
my ( $fan_speed ) = @_;
my $cpu_temp_difference = $g_current_cpu_temp - $g_last_set_cpu_temp;
my $sys_temp_difference = $g_current_sys_temp - $g_last_set_sys_temp;
if( (abs $cpu_temp_difference) > $min_temp_change ) {
print "We last updated fan speed $cpu_temp_difference *C ago (CPU Temperature).\n";
print "Current CPU Temperature is $g_current_cpu_temp *C, setting CPU Fan Speed to $fan_speed\n";
$g_last_set_cpu_temp = $g_current_cpu_temp;
$g_current_fan_duty_cycle = $fan_speed;
Internal_DoSetFanSpeedCpu( $fan_speed );
}
if( (abs $sys_temp_difference) > $min_temp_change ) {
print "We last updated fan speed $sys_temp_difference *C ago (SYS Temperature).\n";
print "Current SYS Temperature is $g_current_sys_temp *C, setting SYS Fan Speed to $fan_speed\n";
$g_last_set_sys_temp = $g_current_sys_temp;
$g_current_fan_duty_cycle = $fan_speed;
Internal_DoSetFanSpeedSys( $fan_speed );
}
}
sub UpdateFanSpeed { sub UpdateFanSpeed {
# Gather statistics for fan speed and CPU Temp and stuch # Gather statistics for fan speed and CPU Temp and stuch
my $ipmi_output = `ipmitool sdr list full`; my $ipmi_output = `ipmitool sdr list full`;
@ -87,6 +60,8 @@ sub UpdateFanSpeed {
my $current_cpu_temp = 0; my $current_cpu_temp = 0;
my $current_sys_temp = 0; my $current_sys_temp = 0;
my $cpu_temp_difference = 0;
my $sys_temp_difference = 0;
foreach my $value (@vals) { foreach my $value (@vals) {
@ -105,50 +80,63 @@ sub UpdateFanSpeed {
$g_current_cpu_temp = $current_cpu_temp; $g_current_cpu_temp = $current_cpu_temp;
$g_current_sys_temp = $current_sys_temp; $g_current_sys_temp = $current_sys_temp;
my $desired_fan_speed_cpu = 0x0; my $desired_cpu_fan_speed = 0x0;
my $desired_fan_speed_sys = 0x0; my $desired_sys_fan_speed = 0x0;
my @cpu_temps = keys %cpu_temp_to_fan_speed; my @cpu_temps = keys %cpu_temp_to_fan_speed;
for my $cpu_temp (@cpu_temps) { for my $cpu_temp (@cpu_temps) {
if( $current_cpu_temp > $cpu_temp ) { if( $current_cpu_temp >= $cpu_temp ) {
# If the current CPU temperature is higher than the temperature enumerated by this hash lookup, # If the current CPU temperature is higher than the temperature enumerated by this hash lookup,
# Then set the desired fan speed (if our value is larger than the existing value) # Then set the desired fan speed (if our value is larger than the existing value)
$desired_fan_speed_cpu = max( $cpu_temp_to_fan_speed{ $cpu_temp }, $desired_fan_speed_cpu ); $desired_cpu_fan_speed = max( $cpu_temp_to_fan_speed{ $cpu_temp }, $desired_cpu_fan_speed );
# print "The fan speed setting for CPU Temp $cpu_temp *C is $cpu_temp_to_fan_speed{$cpu_temp} % duty cycle\n"; # print "The fan speed setting for CPU Temp $cpu_temp *C is $cpu_temp_to_fan_speed{$cpu_temp} % duty cycle\n";
} }
} }
my @sys_temps = keys %sys_temp_to_fan_speed; my @sys_temps = keys %sys_temp_to_fan_speed;
for my $sys_temp (@sys_temps) { for my $sys_temp (@sys_temps) {
if( $current_sys_temp > $sys_temp ) { if( $current_sys_temp >= $sys_temp ) {
# If the current gPU temperature is higher than the temperature enumerated by this hash lookup, # If the current gPU temperature is higher than the temperature enumerated by this hash lookup,
# Then set the desired fan speed (if our value is larger than the existing value) # Then set the desired fan speed (if our value is larger than the existing value)
$desired_fan_speed_sys = max( $sys_temp_to_fan_speed{ $sys_temp }, $desired_fan_speed_sys ); $desired_sys_fan_speed = max( $sys_temp_to_fan_speed{ $sys_temp }, $desired_sys_fan_speed );
# print "The fan speed setting for GPU Temp $sys_temp *C is $sys_temp_to_fan_speed{$sys_temp} % duty cycle\n"; # print "The fan speed setting for GPU Temp $sys_temp *C is $sys_temp_to_fan_speed{$sys_temp} % duty cycle\n";
} }
} }
if( $desired_fan_speed_cpu == 0x0 ) { if( $desired_cpu_fan_speed == 0x0 ) {
print "\n***** ERROR: Failed to determine a desired fan speed. Forcing CPU fans to 100% duty cycle as a safety fallback measure. *****\n"; print "\n***** ERROR: Failed to determine a desired fan speed. Forcing CPU fans to 100% duty cycle as a safety fallback measure. *****\n";
$desired_fan_speed_cpu = 0x64; $desired_cpu_fan_speed = 0x64;
} }
if( $desired_fan_speed_sys == 0x0 ) { if( $desired_sys_fan_speed == 0x0 ) {
print "\n***** ERROR: Failed to determine a desired fan speed. Forcing SYS fans to 100% duty cycle as a safety fallback measure. *****\n"; print "\n***** ERROR: Failed to determine a desired fan speed. Forcing SYS fans to 100% duty cycle as a safety fallback measure. *****\n";
$desired_fan_speed_sys = 0x64; $desired_sys_fan_speed = 0x64;
}
$cpu_temp_difference = $g_current_cpu_temp - $g_last_set_cpu_temp;
$sys_temp_difference = $g_current_sys_temp - $g_last_set_sys_temp;
if( (abs $sys_temp_difference) > $min_temp_change ) {
print "(SYS) Temp change of $sys_temp_difference °C, current $g_current_sys_temp °C, fan speed set to $desired_sys_fan_speed %\n";
$g_last_set_sys_temp = $g_current_sys_temp;
$g_current_sys_fan_duty_cycle = $desired_sys_fan_speed;
`ipmitool raw 0x30 0x70 0x66 0x01 0x01 $desired_sys_fan_speed`;
} }
#print "Current Fan Duty Cycle: $g_current_fan_duty_cycle%\n"; if( (abs $cpu_temp_difference) > $min_temp_change ) {
#print "Desired CPU Fan Duty Cycle: $desired_fan_speed_cpu%\n"; print "(CPU) Temp change of $cpu_temp_difference °C, current $g_current_cpu_temp °C, fan speed set to $desired_cpu_fan_speed %\n";
#print "Desired SYS Fan Duty Cycle: $desired_fan_speed_sys%\n";
SetFanSpeed( $desired_fan_speed_cpu ); $g_last_set_cpu_temp = $g_current_cpu_temp;
SetFanSpeed( $desired_fan_speed_sys ); $g_current_cpu_fan_duty_cycle = $desired_cpu_fan_speed;
`ipmitool raw 0x30 0x70 0x66 0x01 0x00 $desired_cpu_fan_speed`;
}
} }
print "Setting Fan mode to FULL SPEED.\n"; print "Setting Fan mode to FULL SPEED.\n";
# Ensure Fan Mode is set to Full Speed
`ipmitool raw 0x30 0x45 0x01 0x01`; `ipmitool raw 0x30 0x45 0x01 0x01`;
while( 1 ) { while( 1 ) {