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dpdk-devbind.cpython-310.pyc
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2025-12-31 20:40
dpdk-hugepages.cpython-310.pyc
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dpdk-pmdinfo.cpython-310.pyc
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Valid page sizes: {}z-Unable to set pages ({} instead of {} in {}).) r0 �writer �PermissionErrorr r �FileNotFoundErrorr. r3 )r �reqpages�filenamer2 �gotpagesr r r � set_hugepages< s& �� �� ��r; c C s� t d� t�d�D ]?} | dd� }| d }tj�|�s q t�|�D ]&}t|d | �}|dkrGt|dd � �}t d �||t |�t || ��� q!q dS ) z*Show huge page reservations on Numa systemzNode Pages Size Totalz /sys/devices/system/node/node*� Nz /hugepages�/r r ���z{:<4} {:<5} {:<6} {}) �print�globr r r! r* r3 r r r )� numa_path�noder �hdir�pagesr r r r �show_numa_pagesM s" ����rE c C sf t d� d} t�| �D ]%}t| d | �}|dkr0t|dd� �}t d�|t|�t|| ��� q dS ) z.Show huge page reservations on non Numa systemzPages Size Totalz/sys/kernel/mm/hugepagesr= r r r> z{:<5} {:<6} {}N)r? r r* r3 r r r )r rC rD r r r r �show_non_numa_pages^ s ���rF c C s t � rt� dS t� dS )z Show existing huge page settingsN)r" rE rF r r r r � show_pagesj s rG c C s4 t � r t�d�} nt�d�} | D ]}t|d� qdS )z%Clear all existing huge page mappingsz4/sys/devices/system/node/node*/hugepages/hugepages-*z$/sys/kernel/mm/hugepages/hugepages-*r N)r" r@ r; )�dirsr r r r � clear_pagesr s � �rI c C sd t d��$} | D ]}|�d�r t|�� d � W d � S qW d � dS 1 s+w Y dS )z-Get default huge page size from /proc/meminfoz /proc/meminfoz Hugepagesize:r N)r0 � startswithr r$ )�meminfo�liner r r �default_pagesize~ s �� ��rM c C s@ |r d� |�g}nt�d�}|D ] }d� ||�}t|| � qdS )z(Set huge page reservation on Numa systemz)/sys/devices/system/node/node{}/hugepagesz(/sys/devices/system/node/node*/hugepagesz{}/hugepages-{}kBN)r r@ r; )rD �hugepgszrB �nodes� node_path� huge_pathr r r �set_numa_pages� s �rR c C s d� |�}t|| � dS )z,Set huge page reservation on non Numa systemz'/sys/kernel/mm/hugepages/hugepages-{}kBN)r r; )rD rN r r r r �set_non_numa_pages� s rS c C s* |st � rt| ||d� dS t| |� dS )z+Set the number of huge pages to be reserved�rB N)r" rR rS )rD rN rB r r r � reserve_pages� s rU c C s` g } t d�� }|D ]}|�� }|d dkrq | �|d � q W d � | S 1 s)w Y | S )z0Get list of where hugepage filesystem is mountedz /proc/mountsr � hugetlbfsr N)r0 r$ �append)�mounted�mountsrL �fieldsr r r �get_mountpoints� s � ��r[ c C sL |t � v r t|d� dS d}| r|d�| d �7 }|d| 7 }t�|� dS )z Mount the huge TLB file systemzalready mountedNzmount -t hugetlbfsz -o pagesize={}r z nodev )r[ r? r r �system)�pagesize� mountpoint�cmdr r r � mount_huge� s r` c C s | t � v rt�d| � dS dS )z-Unmount the huge TLB file system (if mounted)zumount N)r[ r r\ )r^ r r r � umount_huge� s �ra c C s* t � } | rtdg| �R � dS td� dS )z*Show where huge page filesystem is mountedzHugepages mounted onzHugepages not mountedN)r[ r? )rX r r r � show_mount� s rb c C s� t jt jddd�} | jddddd� | jd d dd d� | jd d ddd� | jddddd� | jdddd� | jddddd� | jdd dd d� | jd dd d� | �� }|jrcd |_d |_|j|_d |_ |j rlt |j �}nt � }|syt �d!�|�� |jrt� |jr�tt� |jr�t |j�}|| d"kr�t �d#�||�� tt|| �||jd$� |j r�t|t� |jr�t� t� t� d%S d%S )&z7Process the command line arguments and setup huge pageszSetup huge pagesz� Examples: To display current huge page settings: %(prog)s -s To a complete setup of with 2 Gigabyte of 1G huge pages: %(prog)s -p 1G --setup 2G )�formatter_class� description�epilogz--showz-s� store_truez)print the current huge page configuration)�action�helpz--clearz-czclear existing huge pagesz--mountz-mz mount the huge page filesystemz --unmountz-uz&unmount the system huge page directoryz--nodez-nz$select numa node to reserve pages on)rh z --pagesizez-p�SIZEz choose huge page size to use)�metavarrh z --reservez-rz;reserve huge pages. Size is in bytes with K, M, or G suffixz--setupz;setup huge pages by doing clear, unmount, reserve and mountTzInvalid page size: {}kBr z9Huge reservation {}kB is not a multiple of page size {}kBrT N)�argparse�ArgumentParser�RawDescriptionHelpFormatter� add_argument� parse_args�setup�clear�unmount�reserve�mountr] r rM r r r rI ra � HUGE_MOUNTrU r rB r` �showrG r? rb )�parser�args� pagesize_kb� reserve_kbr r r �main� s� � �������� �� �r{ �__main__)N) �__doc__rk r@ r r r �mathr r ru r r r" r. r3 r; rE rF rG rI rM rR rS rU r[ r` ra rb r{ �__name__r r r r �<module> s> S �