...possible to alter the frequency at which the kernel delivers profiling interrupts to each CPU. This option allows you to set the frequency, as a multiplier of the system clock f…...em on files with holes or on copy-on-write files on filesystems like Btrfs. Commands like cp (1) or truncate (1) create files with holes. These files will be rejected by swapon …...em on files with holes or on copy-on-write files on filesystems like Btrfs. Commands like cp (1) or truncate (1) create files with holes. These files will be rejected by swapon …