reactos/rostests/kmtests/ntos_ke/KeProcessor.c

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/*
* PROJECT: ReactOS kernel-mode tests
* LICENSE: LGPLv2+ - See COPYING.LIB in the top level directory
* PURPOSE: Kernel-Mode Test Suite Executive Regressions KM-Test
* PROGRAMMER: Aleksey Bragin <aleksey@reactos.org>
*/
/* TODO: this test doesn't process any test results; it also takes very long */
#include <kmt_test.h>
#define NDEBUG
#include <debug.h>
static VOID KeStallExecutionProcessorTest(VOID)
{
ULONG i;
LARGE_INTEGER TimeStart, TimeFinish;
DPRINT1("Waiting for 30 secs with 50us stalls...\n");
KeQuerySystemTime(&TimeStart);
for (i = 0; i < (30*1000*20); i++)
{
KeStallExecutionProcessor(50);
}
KeQuerySystemTime(&TimeFinish);
DPRINT1("Time elapsed: %d secs\n", (TimeFinish.QuadPart - TimeStart.QuadPart) / 10000000); // 30
DPRINT1("Waiting for 30 secs with 1000us stalls...\n");
KeQuerySystemTime(&TimeStart);
for (i = 0; i < (30*1000); i++)
{
KeStallExecutionProcessor(1000);
}
KeQuerySystemTime(&TimeFinish);
DPRINT1("Time elapsed: %d secs\n", (TimeFinish.QuadPart - TimeStart.QuadPart) / 10000000); // 30
DPRINT1("Waiting for 30 secs with 1us stalls...\n");
KeQuerySystemTime(&TimeStart);
for (i = 0; i < (30*1000*1000); i++)
{
KeStallExecutionProcessor(1);
}
KeQuerySystemTime(&TimeFinish);
DPRINT1("Time elapsed: %d secs\n", (TimeFinish.QuadPart - TimeStart.QuadPart) / 10000000); // 43
DPRINT1("Waiting for 30 secs with one huge stall...\n");
KeQuerySystemTime(&TimeStart);
KeStallExecutionProcessor(30*1000000);
KeQuerySystemTime(&TimeFinish);
DPRINT1("Time elapsed: %d secs\n", (TimeFinish.QuadPart - TimeStart.QuadPart) / 10000000); // 30
}
START_TEST(KeProcessor)
{
KeStallExecutionProcessorTest();
}