Performance fixes by enabling acpi and enabling idling

byondvm/kernel.config

@@ -1,5 +1,6 @@
 CONFIG_KERNEL_LZ4=y
 # CONFIG_USELIB is not set
+CONFIG_NO_HZ_IDLE=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT=y
 CONFIG_BLK_DEV_INITRD=y
@@ -41,9 +42,15 @@ CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="console=ttyS1"
 # CONFIG_MODIFY_LDT_SYSCALL is not set
 # CONFIG_SUSPEND is not set
-# CONFIG_ACPI is not set
-CONFIG_CPU_IDLE=y
-# CONFIG_FIRMWARE_MEMMAP is not set
+# CONFIG_ACPI_SPCR_TABLE is not set
+# CONFIG_ACPI_REV_OVERRIDE_POSSIBLE is not set
+# CONFIG_ACPI_AC is not set
+# CONFIG_ACPI_BATTERY is not set
+# CONFIG_ACPI_BUTTON is not set
+# CONFIG_ACPI_FAN is not set
+# CONFIG_ACPI_THERMAL is not set
+# CONFIG_ACPI_TABLE_UPGRADE is not set
+CONFIG_CPU_IDLE_GOV_LADDER=y
 # CONFIG_VIRTUALIZATION is not set
 # CONFIG_SECCOMP is not set
 # CONFIG_STACKPROTECTOR is not set
@@ -66,6 +73,7 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_FW_LOADER is not set
 # CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_FIRMWARE_MEMMAP is not set
 # CONFIG_INPUT_MOUSE is not set
 CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_LEGACY_PTYS is not set
@@ -92,7 +100,6 @@ CONFIG_9P_FS=y
 CONFIG_9P_FSCACHE=y
 CONFIG_9P_FS_POSIX_ACL=y
 CONFIG_XZ_DEC=y
-# CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_DEBUG_MISC is not set
 CONFIG_PANIC_ON_OOPS=y