X-Git-Url: http://git.samba.org/samba.git/?p=kai%2Fsamba.git;a=blobdiff_plain;f=docs-xml%2Fmanpages-3%2Fvfs_aio_pthread.8.xml;fp=docs-xml%2Fmanpages-3%2Fvfs_aio_pthread.8.xml;h=0000000000000000000000000000000000000000;hp=3e41ee9e1885554bd98cd73482dccef3d5b6b0c3;hb=75484f491140fb86eaee90dde1dc1c9d4ebe8a41;hpb=9c44e2e5392926773c9966e8bda924d1e6c9b591 diff --git a/docs-xml/manpages-3/vfs_aio_pthread.8.xml b/docs-xml/manpages-3/vfs_aio_pthread.8.xml deleted file mode 100644 index 3e41ee9e188..00000000000 --- a/docs-xml/manpages-3/vfs_aio_pthread.8.xml +++ /dev/null @@ -1,120 +0,0 @@ - - - - - - vfs_aio_pthread - 8 - Samba - System Administration tools - 3.6 - - - - - vfs_aio_pthread - implement async I/O in Samba vfs using a pthread pool - - - - - vfs objects = aio_pthread - - - - - DESCRIPTION - - This VFS module is part of the - samba - 7 suite. - - The aio_pthread VFS module enables asynchronous - I/O for Samba on platforms which have the pthreads API available, - without using the Posix AIO interface. Posix AIO can suffer from severe - limitations. For example, on some Linux versions the - real-time signals that it uses are broken under heavy load. - Other systems only allow AIO when special kernel modules are - loaded or only allow a certain system-wide amount of async - requests being scheduled. Systems based on glibc (most Linux - systems) only allow a single outstanding request per file - descriptor which essentially makes Posix AIO useless on systems - using the glibc implementation. - - To work around all these limitations, the aio_pthread module - was written. It uses a pthread pool instead of the - internal Posix AIO interface to allow read and write calls - to be process asynchronously. A pthread pool is created - which expands dynamically by creating new threads as work is - given to it to a maximum of 100 threads per smbd process. - To change this limit see the "aio num threads" parameter - below. New threads are not created if idle threads are - available when a new read or write request is received, - the new work is given to an existing idle thread. Threads - terminate themselves if idle for one second. - - - - Note that the smb.conf parameters aio read size - and aio write size must also be set appropriately - for this module to be active. - - - This module MUST be listed last in any module stack as - the Samba VFS pread/pwrite interface is not thread-safe. This - module makes direct pread and pwrite system calls and does - NOT call the Samba VFS pread and pwrite interfaces. - - - - - - EXAMPLES - - Straight forward use: - - - - /data/ice - 1024 - 1024 - aio_pthread - - - - - - OPTIONS - - - - - aio_pthread:aio num threads = INTEGER - - Limit the maximum number of threads per smbd that - will be created in the thread pool to service IO requests. - - By default this is set to 100. - - - - - - - VERSION - - This man page is correct for version 3.6.3 of the Samba suite. - - - - - AUTHOR - - The original Samba software and related utilities - were created by Andrew Tridgell. Samba is now developed - by the Samba Team as an Open Source project similar - to the way the Linux kernel is developed. - - - -