cosmopolitan/libc/testlib/benchrunner.c

61 lines
3.1 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/kntprioritycombos.internal.h"
#include "libc/log/log.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/mlock.h"
#include "libc/testlib/testlib.h"
double g_avx2_juiceup_doubles_[4] aligned(32);
unsigned long long g_avx2_juiceup_quadwords_[4] aligned(32);
void testlib_benchwarmup(void) {
/* get mathematical parts of cpu juiced up */
if (X86_HAVE(AVX2) && X86_HAVE(FMA)) {
asm("vmovdqa\t%1,%%ymm0\n\t"
"vpmaddwd\t(%2),%%ymm0,%%ymm0\n\t"
"vmovdqa\t%%ymm0,%0\n\t"
"vzeroall"
: "=m"(g_avx2_juiceup_quadwords_)
: "m"(g_avx2_juiceup_quadwords_), "r"(&_base[0]));
asm("vmovapd\t%1,%%ymm1\n\t"
"vfmadd132pd\t(%2),%%ymm1,%%ymm1\n\t"
"vmovapd\t%%ymm1,%0\n\t"
"vzeroall"
: "=m"(g_avx2_juiceup_doubles_)
: "m"(g_avx2_juiceup_doubles_), "r"(&_base[32]));
}
}
/**
* Runs all benchmark functions in sorted order.
*
* @see BENCH()
*/
void testlib_runallbenchmarks(void) {
peekall();
mlockall(MCL_CURRENT);
nice(-1);
g_loglevel = kLogWarn;
testlib_runtestcases(__bench_start, __bench_end, testlib_benchwarmup);
}