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ceaca84a7f
Use mps_root_create_thread in preference to mps_root_create_reg. New test harness run_test passes pointer to cold end of stack, since this is needed by many tests. Copied from Perforce Change: 195917
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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TEST_HEADER
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id = $Id$
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summary = simple spare commit limit test
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language = c
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link = testlib.o rankfmt.o
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harness = 2.0
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parameters = EXTEND=65536 AVGSIZE=32 BIGSIZE=5000000;
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OUTPUT_SPEC
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spare_committed0 = 0
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spare0 = 0.000000
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reduce1 > 4000000
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spare_committed1 = 0
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spare1 = 0.000000
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reduce2 <= 0
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spare_committed2 > 4000000
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spare2 = 1.000000
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reduce3 > 3000000
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spare_committed3 < 50000
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spare3 = 0.010000
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completed = yes
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END_HEADER
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*/
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#include "testlib.h"
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#include "mpscmvff.h"
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#include "mpsavm.h"
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mps_arena_t arena;
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#define MAXOBJS (10000)
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mps_addr_t objs[MAXOBJS];
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mps_addr_t sizes[MAXOBJS];
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static void test(void *stack_pointer)
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{
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mps_pool_t pool;
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mps_thr_t thread;
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size_t com0, com1, com2;
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/* create a VM arena of 40MB with commit limit of 100MB, i.e. let the
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arena do the limiting. */
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MPS_ARGS_BEGIN(args) {
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MPS_ARGS_ADD(args, MPS_KEY_ARENA_SIZE, 1024*1024*40);
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MPS_ARGS_ADD(args, MPS_KEY_COMMIT_LIMIT, 1024ul*1024ul*100ul);
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MPS_ARGS_ADD(args, MPS_KEY_SPARE, 0.0);
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cdie(mps_arena_create_k(&arena, mps_arena_class_vm(), args),
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"create arena");
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} MPS_ARGS_END(args);
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report("spare_committed0", "%lu", (unsigned long)mps_arena_spare_committed(arena));
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report("spare0", "%f", mps_arena_spare(arena));
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cdie(mps_thread_reg(&thread, arena), "register thread");
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MPS_ARGS_BEGIN(args) {
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MPS_ARGS_ADD(args, MPS_KEY_EXTEND_BY, EXTEND);
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MPS_ARGS_ADD(args, MPS_KEY_MEAN_SIZE, AVGSIZE);
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MPS_ARGS_ADD(args, MPS_KEY_MVFF_ARENA_HIGH, 0);
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MPS_ARGS_ADD(args, MPS_KEY_MVFF_SLOT_HIGH, 0);
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MPS_ARGS_ADD(args, MPS_KEY_MVFF_FIRST_FIT, 1);
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/* Set SPARE to 0 as we are testing arena hysteresis here and we
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don't want MVFF hysteresis to get in the way. */
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MPS_ARGS_ADD(args, MPS_KEY_SPARE, 0.0);
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cdie(mps_pool_create_k(&pool, arena, mps_class_mvff(), args),
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"create low pool");
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} MPS_ARGS_END(args);
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die(mps_alloc(&objs[0], pool, BIGSIZE), "alloc");
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com0 = mps_arena_committed(arena);
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mps_free(pool, objs[0], BIGSIZE);
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com1 = mps_arena_committed(arena);
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/* the free should have reduced the total amount committed */
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report("reduce1", "%ld", com0-com1);
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report("spare_committed1", "%lu", (unsigned long)mps_arena_spare_committed(arena));
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report("spare1", "%f", mps_arena_spare(arena));
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/* Try again but with arena hysteresis */
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mps_arena_spare_set(arena, 1.0);
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asserts(mps_arena_spare(arena) <= 1.0, "spare");
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die(mps_alloc(&objs[0], pool, BIGSIZE), "alloc");
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com0 = mps_arena_committed(arena);
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mps_free(pool, objs[0], BIGSIZE);
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com1 = mps_arena_committed(arena);
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/* This time the free shouldn't make any difference */
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report("reduce2", "%ld", com0-com1);
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report("spare_committed2", "%lu", (unsigned long)mps_arena_spare_committed(arena));
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report("spare2", "%f", mps_arena_spare(arena));
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/* Reducing the spare committed limit should return most of the spare */
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mps_arena_spare_set(arena, 0.01);
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com2 = mps_arena_committed(arena);
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report("reduce3", "%ld", com0-com2);
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report("spare_committed3", "%lu", (unsigned long)mps_arena_spare_committed(arena));
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report("spare3", "%f", mps_arena_spare(arena));
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mps_pool_destroy(pool);
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mps_thread_dereg(thread);
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mps_arena_destroy(arena);
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}
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int main(void)
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{
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run_test(test);
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pass();
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return 0;
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}
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