TXuian
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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#include "libserial.h"
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#include "usyscall.h"
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static inline uintptr_t arch_curr_tick()
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{
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uint64_t x;
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__asm__ volatile("mrs %0, cntpct_el0" : "=r"(x));
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return x;
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}
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int main(int argc, char* argv[])
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{
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uintptr_t loop = 1000;
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uintptr_t tick_total = 0;
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for (uintptr_t i = 0; i < loop; i++) {
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uintptr_t tick_1 = sys_test();
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uintptr_t tick_2 = sys_test();
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// printf("TICK before: %lu\n", tick_1);
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// printf("TICK after: %lu\n", tick_2);
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// printf("TICK diff: %lu\n", tick_2 - tick_1);
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tick_total += tick_2 - tick_1;
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}
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printf("TICK DIFF: %lu\n", tick_total / loop);
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printf("TEST TICK: %lu\n", arch_curr_tick());
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exit(0);
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return 0;
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}
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