devtool: Keep boost enabled on AMD

Our dashboards show AMD as being stable with boost enabled as it behaves
differently to what we see with Intel. Making the change to test the
long term stability.

Signed-off-by: Jack Thomson <[email protected]>

Author: JackThomson2

tools/devtool

@@ -738,7 +738,6 @@ apply_linux_61_tweaks() {
 
 # Modifies the processors CPU governor and P-state configuration (x86_64 only) for consistent performance. This means
 # - Disable turbo boost (Intel only) by writing 1 to /sys/devices/system/cpu/intel_pstate/no_turbo
-# - Disable turbo boost (AMD only) by writing 0 to /sys/devices/system/cpu/cpufreq/boost
 # - Lock the CPUs' P-state to the highest non-turbo one (Intel only) by writing 100 to /sys/devices/system/cpu/intel_pstate/{min,max}_perf_pct
 # - Set the cpu frequency governor to performance by writing "performance" to /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
 apply_performance_tweaks() {
@@ -757,8 +756,6 @@ apply_performance_tweaks() {
     # https://www.kernel.org/doc/html/v4.12/admin-guide/pm/intel_pstate.html
     echo 100 |sudo tee /sys/devices/system/cpu/intel_pstate/min_perf_pct &> /dev/null
     echo 100 |sudo tee /sys/devices/system/cpu/intel_pstate/max_perf_pct &> /dev/null
-  elif [[ -f /sys/devices/system/cpu/cpufreq/boost ]]; then
-    echo 0 |sudo tee /sys/devices/system/cpu/cpufreq/boost &> /dev/null
   fi
 
   # The governor is a linux component that can adjust CPU frequency. "performance" tells it to always run CPUs at
@@ -775,8 +772,6 @@ unapply_performance_tweaks() {
     # restore p-state limits
     echo $MIN_PERF_PCT |sudo tee /sys/devices/system/cpu/intel_pstate/min_perf_pct &> /dev/null
     echo $MAX_PERF_PCT |sudo tee /sys/devices/system/cpu/intel_pstate/max_perf_pct &> /dev/null
-  elif [[ -f /sys/devices/system/cpu/cpufreq/boost ]]; then
-    echo 1 | sudo tee /sys/devices/system/cpu/cpufreq/boost &> /dev/null
   fi
 
   # We do not reset the governor, as keeping track of each CPUs configured governor is not trivial here. On our CI