Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
42 lines
826 B
C
42 lines
826 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Artificial memory access program for testing DAMON.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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int main(int argc, char *argv[])
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{
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char **regions;
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clock_t start_clock;
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int nr_regions;
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int sz_region;
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int access_time_ms;
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int i;
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if (argc != 4) {
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printf("Usage: %s <number> <size (bytes)> <time (ms)>\n",
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argv[0]);
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return -1;
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}
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nr_regions = atoi(argv[1]);
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sz_region = atoi(argv[2]);
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access_time_ms = atoi(argv[3]);
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regions = malloc(sizeof(*regions) * nr_regions);
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for (i = 0; i < nr_regions; i++)
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regions[i] = malloc(sz_region);
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for (i = 0; i < nr_regions; i++) {
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start_clock = clock();
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while ((clock() - start_clock) * 1000 / CLOCKS_PER_SEC <
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access_time_ms)
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memset(regions[i], i, sz_region);
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}
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return 0;
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}
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