cachestats(1)

print cache statistics for a file

Section 1 nocache bookworm source

Description

CACHESTATS

NAME

cachestats - print cache statistics for a file

SYNOPSIS

cachestats [-qv] file

DESCRIPTION

Print number of cached vs. not-cached pages.

OPTIONS

-v "Verbose mode"

Print verbose cache map, where each page that is present in the cache is marked with ‘x‘.

-q "Quiet mode"

The exit status is 0 (success) if the file is fully cached.

EXAMPLE

$ cachestats -v ˜/somefile.mp3
pages in cache: 85/114 (74.6%) [filesize=453.5K, pagesize=4K]

cache map:
0: |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|
32: |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|
64: |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x| | | | | | | | | | | | |
96: | | | | | | | | | | | | | | | | | |x|

SEE ALSO

Also, you can use ‘vmstat 1‘ to view cache statistics.