OS Manuals

/usr/bin/kcapi-speed

libkcapi (commandline utilities)

From libkcapi-tools 1.5.1-r2 (os), captured 2026-11-05 by running kcapi-speed --help (exit 1). permalink

/usr/bin/kcapi-speed: unrecognized option '--help'

AF_ALG Kernel Crypto API Speed Test

Kernel Crypto API interface library version: libkcapi 1.5.1
Reported numeric version number 1050100

Usage:
	-a --all	Execute all ciphers
	-l --list	List available ciphers
	-c --cipher	Cipher/cipher type to test
	-t --time	Execution time in seconds
	-b --blocks	Number of blocks to process
	-r --raw	Print out raw numbers for postprocessing
	-v --vmsplice	Use vmsplice kernel interface
	-s --sendmsg	Use sendmsg kernel interface
	-o --aio	Use AIO interface with given number of IOVECs
Options (9)
OptionDescriptionSource
-a --allExecute all ciphershelp
-l --listList available ciphershelp
-c --cipherCipher/cipher type to testhelp
-t --timeExecution time in secondshelp
-b --blocksNumber of blocks to processhelp
-r --rawPrint out raw numbers for postprocessinghelp
-v --vmspliceUse vmsplice kernel interfacehelp
-s --sendmsgUse sendmsg kernel interfacehelp
-o --aioUse AIO interface with given number of IOVECshelp

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.