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� +cc @ s� d d l Z d d l m Z d d l Td d l Z d d l j Z d d l m Z d d l Z d d l Z e j j � Z d e j f d � � YZ d S( i����Ni ( t hotplug( t *( t commandst DiskPluginc B s9 e Z d Z d � Z d � Z d � Z d � Z e d � � Z d � Z d � Z d � Z d � Z d � Z e d � � Z e d � � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d � Z e d d e �d � � Z e d � e! d � � Z" e d d e �d � � Z# e d � e! d! � � Z$ e d" d e �d# � � Z% e d" � e! d$ � � Z& d% � Z' d& � Z( e d' d e �d( � � Z) e d' � e! d) � � Z* e+ d* d e �d+ � � Z, d, � Z- e d- d e �d. � � Z. e d- � e! d/ � � Z/ RS(0 s' Plugin for tuning options of disks. c O s� t t | � j | | � d d d d d d d d d d d d g | _ d d d d d d d d d d d d g | _ t | j � | _ d | _ d | _ t � | _ d S( Ni� i� i� i� i� i} ii iU iF i7 i i i i� i� i� i� i� i� i� in iZ i< i g{�G�z�?( t superR t __init__t _power_levelst _spindown_levelst lent _levelst _level_stepst _load_smallestR t _cmd( t selft argst kwargs( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR s -- c C s� t t | � j � t | _ t | _ t � | _ t � | _ xp | j j d � D]\ } | j | � rP | j j | j � | j r� | j | j � r� | j j | j � q� qP qP Wt � | _ d S( Nt block( R R t _init_devicest Truet _devices_supportedt _use_hdparmt sett _free_devicest _hdparm_apm_devicest _hardware_inventoryt get_devicest _device_is_supportedt addt sys_namet _is_hdparm_apm_supportedt _assigned_devices( R t device( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR s c C s& g | D] } | j j d | � ^ q S( NR ( R t get_device( R t devicest x( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_device_objects) s c C s� | j j d d d | g d t j g d t �\ } } } | t j k rd t j d � t | _ t S| r� t j d | � t j d | | f � t Sd | k r� t j d | � t St S( Nt hdparms -Cs /dev/%st no_errorst return_errs4 hdparm command not found, ignoring for other devicess# Device '%s' not supported by hdparms (rc: %s, msg: '%s')t unknowns3 Driver for device '%s' does not support apm command( R t executet errnot ENOENTR t logt warnt FalseR t infot debug( R R t rct outt err_msg( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR , s c C sI | j d k oH | j j d d � d k oH | j d k pH | j j d k S( Nt diskt removablet 0t scsit virtiot xent nvme( R6 R7 R8 R9 ( t device_typet attributest gett Nonet parentt subsystem( t clsR ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR < s c C s | j j | d | j � d S( NR ( R t subscribet _hardware_events_callback( R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _hardware_events_initC s c C s | j j | � d S( N( R t unsubscribe( R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _hardware_events_cleanupF s c C s; | j | � s | d k r7 t t | � j | | � n d S( Nt remove( R R R RB ( R t eventR ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRB I s c C s? | j d k r" | j j | � n t t | � j | | � d S( N( t _load_monitorR= t add_deviceR R t _added_device_apply_tuning( R t instancet device_name( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRJ M s c C s? | j d k r" | j j | � n t t | � j | | � d S( N( RH R= t remove_deviceR R t _removed_device_unapply_tuning( R RK RL ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRN R s c C s5 i t d 6d d 6d d 6d d 6d d 6d d 6d d 6S( Nt dynamict elevatort apmt spindownt readaheadt readahead_multiplyt scheduler_quantum( R R= ( R@ ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_config_optionsW s c C s d d g S( NRQ RR ( ( R@ ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt# _get_config_options_used_by_dynamicc s c C s� t | _ d | _ d | _ | j | j d � r| t | _ | j j d | j � | _ i | _ i | _ i | _ i | _ n t | _ d | _ d S( Ni RO R3 ( R t _has_static_tuningt _apm_errcntt _spindown_errcntt _option_boolt optionst _has_dynamic_tuningt _monitors_repositoryt createt assigned_devicesRH t _device_idlet _statst _idlet _spindown_change_delayedR- R= ( R RK ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _instance_initj s c C s2 | j d k r. | j j | j � d | _ n d S( N( RH R= R^ t delete( R RK ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _instance_cleanup} s c C s� | r d } | j } n d } | j } | t j k r: d S| d k rO d } ne | t j k r� t j d | _ | _ t j d � d S| d 7} | t j k r� t j d | � n | r� | | _ n | | _ d S( NRR RQ i i sI hdparm command not found, ignoring future set_apm / set_spindown commandss5 disabling set_%s command: too many consecutive errors( RZ RY t constst ERROR_THRESHOLDR) R* R+ R, R. ( R R0 RR t st cnt( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _update_errcnt� s& c C sg t j d | � | j j d d | d | g d t j g �\ } } | j | t � t | j | <d S( Ns changing spindown to %dR$ s -S%ds /dev/%sR% ( R+ R/ R R( R) R* Rl R R- Rd ( R RK R t new_spindown_levelR0 R1 ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _change_spindown� s 5c C sG | j j d d d | g d t j g �\ } } d | k oF d | k S( NR$ s -Cs /dev/%sR% t standbyt sleeping( R R( R) R* ( R R R0 R1 ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _drive_spinning� s 1c C s� | | j k r d S| j j | � } | d k r5 d S| | j k rW | j | | � n | j | | | � | j | | � | j | } | j | } | d d | j k r� | d | j k r� | d | j k r� d } n? | d d k r| d d k s | d d k rd } n d } | d k r?| d c | 7<| j | d } | j | d } t j d | d � | j t j k r�| j | � r�| d k r�t j d | � t | j | <q�| j | | | � n | j t j k r�t j d | � | j j d d | d | g d t j g �\ } } | j | t � q�nC | j | r�| j | � r�| j | d } | j | | | � n t j d | | d | d f � t j d | | d | d | d f � d S( Nt leveli t readt writei i����s tuning level changed to %ds; delaying spindown change to %d, drive has already spun downs changing APM_level to %dR$ s -B%ds /dev/%sR% s %s load: read %0.2f, write %0.2fs$ %s idle: read %d, write %d, level %d( R RH t get_device_loadR= Rb t _init_stats_and_idlet _update_statst _update_idleRc R R R R R+ R/ RZ Rh Ri Rq R Rd Rn RY R R( R) R* Rl R- ( R RK R t loadt statst idlet level_changet new_power_levelRm R0 R1 ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _instance_update_dynamic� sF = 0 5 "c C sj i d d g d 6d d g d 6d d g d 6| j | <i d d 6d d 6d d 6| j | <t | j | <d S( Ni i t newt oldi t maxRr Rs Rt ( Rb Rc R- Rd ( R RK R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRv � s 7"c C s | j | d | j | d <} | | j | d <g t | | � D] } | d | d ^ qA } | | j | d <| j | d } g t | | � D] } t | � ^ q� } | | j | d <t | d � t | d � | j | d <t | d � t | d � | j | d <d S( NR R� i i t diffR� Rs i Rt ( Rb t zipR� t float( R RK R t new_loadt old_loadt new_oldR� t old_max_loadt pairt max_load( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRw � s .()c C s` xY d d g D]K } | j | | | j k rG | j | | c d 7<q d | j | | <q Wd S( NRs Rt i i ( Rb R Rc ( R RK R t operation( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyRx � s c C s@ | | j k r# t j d | � n t t | � j t t � d S( Ns< There is no dynamic tuning available for device '%s' at time( R R+ R. R R t _instance_apply_dynamicR R ( R RK R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR� � s c C s d S( N( ( R RK R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _instance_unapply_dynamic� s s /sys/block/c C s_ d | k rI t j j | | j d d � | � } t j j | � rI | Sn t j j | | | � S( Nt /t !( t ost patht joint replacet exists( R R t suffixt prefixt dev( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _sysfs_path s $c C s | j | d � S( Ns queue/scheduler( R� ( R R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _elevator_file s RP t per_devicec C s/ | j | � } | s+ | j j | | � n | S( N( R� R t write_to_file( R t valueR t simt sys_file( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _set_elevator s c C s1 | j | � } | j j | j j | d | �� S( Nt no_error( R� R t get_active_optiont read_file( R R t ignore_missingR� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_elevator s RQ c C s� | | j k r7 | s* t j d | � d St | � Sn | j t j k r� | s� | j j d d t | � d | g d t j g �\ } } | j | t � n t | � Sd Sd S( Ns+ apm option is not supported for device '%s'R$ s -Bs /dev/R% ( R R+ R. R= t strRY Rh Ri R R( R) R* Rl R- ( R R� R R� R0 R1 ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _set_apm s : c C s | | j k r- | s) t j d | � n d Sd } t } | j j d d d | g d t j g �\ } } | t j k r~ d S| d k r� t } nT t j d | t j � } | r� y t | j d � � } Wq� t k r� t } q� Xn | rt j d | � n | S( Ns+ apm option is not supported for device '%s'R$ s -Bs /dev/R% i s .*=\s*(\d+).*i s2 could not get current APM settings for device '%s'( R R+ R. R= R- R R( R) R* R t ret matcht St intt groupt ValueErrort error( R R R� R� t errR0 R1 t m( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_apm( s( 1 RR c C s� | | j k r7 | s* t j d | � d St | � Sn | j t j k r� | s� | j j d d t | � d | g d t j g �\ } } | j | t � n t | � Sd Sd S( Ns0 spindown option is not supported for device '%s'R$ s -Ss /dev/R% ( R R+ R. R= R� RZ Rh Ri R R( R) R* Rl R ( R R� R R� R0 R1 ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _set_spindown@ s : c C s1 | | j k r- | s) t j d | � n d Sd S( Ns0 spindown option is not supported for device '%s'i� ( R R+ R. R= ( R R R� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_spindownP s c C s | j | d � S( Ns queue/read_ahead_kb( R� ( R R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _readahead_fileY s c C s_ t | � j d d � } t | d � } t | � d k r[ | d d d k r[ | d :} n | S( Ni i Rj i ( R� t splitR= R� R ( R R� t valt v( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _parse_ra\ s & RS c C sB | j | � } | j | � } | s> | j j | d | � n | S( Ns %d( R� R� R R� ( R R� R R� R� R� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _set_readaheadd s c C sM | j | � } | j j | d | �j � } t | � d k rC d St | � S( NR� i ( R� R R� t stripR R= R� ( R R R� R� R� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_readaheadl s RT c C s� | r d S| j d d d | � } | r� | j | � } | d k rG d St t | � | � } | j j | | � | j | | t � nE | j j | � } | d k r� d S| j | | t � | j j | � d S( Nt command_nameRT RL ( R= t _storage_keyR� R� R� t _storageR R� R- R< t unset( R t enablingt multiplierR t verifyR� t storage_keyt old_readaheadt new_readahead( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _multiply_readaheadt s" c C s | j | d � S( Ns queue/iosched/quantum( R� ( R R ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _scheduler_quantum_file� s RU c C s9 | j | � } | s5 | j j | d t | � � n | S( Ns %d( R� R R� R� ( R R� R R� R� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _set_scheduler_quantum� s c C sg | j | � } | j j | d | �j � } t | � d k r] | sY t j d | � n d St | � S( NR� i s> disk_scheduler_quantum option is not supported for device '%s'( R� R R� R� R R+ R. R= R� ( R R R� R� R� ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt _get_scheduler_quantum� s (0 t __name__t __module__t __doc__R R R# R t classmethodR RC RE RB RJ RN RV RW Re Rg Rl Rn Rq R~ Rv Rw Rx R� R� R� R� t command_setR R� t command_getR- R� R� R� R� R� R� R� R� R� t command_customR� R� R� R� ( ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyR sZ 2 ( R) t R t decoratorst tuned.logst tunedt tuned.constsRh t tuned.utils.commandsR R� R� t logsR< R+ t PluginR ( ( ( s= /usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyt <module> s
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