private boolean isHealthy(
            DoubleSupplier currentSystemCpuUsageSupplier, DoubleSupplier currentProcessCpuUsageSupplier) {
        final double currentSystemCpuUsage = currentSystemCpuUsageSupplier.getAsDouble();
        final double currentProcessCpuUsage = currentProcessCpuUsageSupplier.getAsDouble();
        return currentSystemCpuUsage <= targetSystemCpuUsage && currentProcessCpuUsage <= targetProcessCpuLoad;
    }
Returns true if and only if System CPU Usage and Processes cpu usage is below the target usage.
core/src/main/java/com/linecorp/armeria/server/healthcheck/CpuHealthChecker.java