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.TH "mceliece-speed" "1" "" "" ""
.hy
.SS NAME
.PP
mceliece-speed - run some libmceliece speed tests
.SS SYNOPSIS
.IP
.nf
\f[C]
mceliece-speed
\f[R]
.fi
.SS DESCRIPTION
.PP
\f[V]mceliece-speed\f[R] runs some tests of the speed of the libmceliece
implementation of the Classic McEliece cryptosystem.
.PP
The \f[V]mceliece-speed\f[R] output format is subject to change.
Examples of output lines with the current format, from a
\f[V]mceliece-speed\f[R] run on an Intel Haswell CPU core, include the
following:
.IP
.nf
\f[C]
kem_6960119f selected implementation avx compiler clang -Wall -fPIC -fwrapv -Qunused-arguments -O2 -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mbmi -mbmi2 -mpopcnt -mavx2 -mtune=haswell; Ubuntu clang version 14.0.0-1ubuntu1.1; Target: x86_64-pc-linux-gnu; Thread model: posix; InstalledDir: /usr/bin
kem_6960119f_keypair selected 1047319 239336111 -45926+75149-74501+77935+25323-18662-14170+21804-50286+79063+119473+24254+32692-86692-11325+11853-1641+85401+79900-36121+31647-46848-82935-77649+50771-61354+25615-19507-213-113509-15330+22405
kem_6960119f_enc selected 194 133429 +8665+1198+718-1682-1798-1955+3726+6311+3449+8172+423+6202-1740+68-2005-2473-2441+137-2698+6077+680-1746+1015-1769+3059+223+609+291+1042-2685-2438+534
kem_6960119f_dec selected 32 282786 +26439+2205+1168+72-226+118-56+122-334+23+193+46+1698+694+168-350+79-209+2-479+15+31-222-273-108+106-205+191-254+70-104-248
\f[R]
.fi
.PP
These lines say that the automatically selected implementation for the
\f[V]6960119f\f[R] parameter set was the \f[V]avx\f[R] implementation
compiled with the \f[V]clang\f[R] options shown, taking an interquartile
mean (IQM) of 239336111 CPU cycles to generate a key pair, 133429 CPU
cycles to encapsulate a session key, and 282786 CPU cycles to
decapsulate a session key.
The numbers \f[V]282786 +26439+2205+...\f[R] show the timings for a
series of consecutive operations: the IQM was 282786 cycles, the first
run took 26439 cycles more than the IQM, the second run took 2205 cycles
more than the IQM, etc.
.SS SEE ALSO
.PP
\f[B]mceliece\f[R](1), \f[B]mceliece\f[R](3)