Linux kernel parameter FS related to VMS

File System Related

FS.AIO-NR = 0 Current AIO requests Fs.aio-MAX-NR = 1048576 Maximum allowable number of AIO requests fs.file-NR = 3456       0       94159  Number of allocated files handle /allocated but not used/ max file handlefs.file-max = 94159= 1048576nr_ Open is the maximum number of files a process can open fs.inode-nr = 13030     1629 lists the Inode-The first two item of state, which can be skipped without looking at Fs.inode- State = 13030  1629    0       0       0       0       0 The first 3 columns are listed as Nr_inodes/nr_free_inodes/preshrink, The first two respectively indicate the number of allocated inode/idle inode, and when Nr_inodes > Inode_max preshirnk = Nr_inodes–inode_max, the system needs to clear the Inode list;

VM-related

Vm.vfs_cache_pressure = the default value of 100, to control the recovery of the cache frequency, the lower the value of the more inclined to retain the cache,0 means that never recycle the cache easily leadout-of-=  == 0 defaults to 0, optional values include 1/2/31: Free page cache, buffer2: Inode and Dentries cache, or caches3  : Includes 1 and 2 note: Dueto buffer/= = 0 Current Pdfflush thread count, read-=  The lower the value is called the OS to use physical memory, the higher the value is called the OS to use swap as far as possible

Linux kernel parameter FS is associated with a VM