From 6aa140d2e9c0a810e057a140a3fdc252acf658d1 Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Wed, 22 May 2013 21:00:39 +0200 Subject: erts: Implement test case for carrier pool --- erts/emulator/beam/erl_alloc.c | 5 + erts/emulator/beam/erl_alloc_util.c | 39 ++++- erts/emulator/test/alloc_SUITE.erl | 9 +- erts/emulator/test/alloc_SUITE_data/Makefile.src | 3 +- .../test/alloc_SUITE_data/allocator_test.h | 7 + erts/emulator/test/alloc_SUITE_data/cpool.c | 157 +++++++++++++++++++++ 6 files changed, 216 insertions(+), 4 deletions(-) create mode 100644 erts/emulator/test/alloc_SUITE_data/cpool.c (limited to 'erts/emulator') diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 4bb7bae870..e85d770daa 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -3311,6 +3311,11 @@ UWord erts_alc_test(UWord op, UWord a1, UWord a2, UWord a3) ERTS_ALC_TEST_ABORT; break; #endif /* #ifdef USE_THREADS */ +#ifdef ERTS_SMP + case 0xf13: return (UWord) 1; +#else + case 0xf13: return (UWord) 0; +#endif default: break; } diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index d549d58e7e..142fcab981 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -293,7 +293,7 @@ MBC after deallocating first block: /* Carriers ... */ -/* #define ERTS_ALC_CPOOL_DEBUG */ +#define ERTS_ALC_CPOOL_DEBUG #if defined(DEBUG) && !defined(ERTS_ALC_CPOOL_DEBUG) # define ERTS_ALC_CPOOL_DEBUG @@ -1921,6 +1921,13 @@ typedef union { # error "Carrier pool implementation assumes ERTS_ALC_A_MIN > ERTS_ALC_A_INVALID" #endif +/* + * The pool is only allowed to be manipulated by managed + * threads except in the alloc_SUITE:cpool case. In this + * test case carrier_pool[ERTS_ALC_A_INVALID] will be + * used. + */ + static ErtsAlcCrrPool_t carrier_pool[ERTS_ALC_A_MAX+1] erts_align_attribute(ERTS_CACHE_LINE_SIZE); #define ERTS_ALC_CPOOL_MAX_BACKOFF (1 << 8) @@ -2051,6 +2058,8 @@ cpool_insert(Allctr_t *allctr, Carrier_t *crr) erts_aint_t val; ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); ERTS_ALC_CPOOL_ASSERT(erts_smp_atomic_read_nob(&crr->allctr) == (erts_aint_t) allctr); @@ -2135,6 +2144,8 @@ cpool_delete(Allctr_t *allctr, Allctr_t *prev_allctr, Carrier_t *crr) ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; #endif + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); ERTS_ALC_CPOOL_ASSERT(sentinel != &crr->cpool); /* Set mod marker on next ptr of our predecessor */ @@ -2227,6 +2238,9 @@ cpool_fetch(Allctr_t *allctr, UWord size) ErtsAlcCPoolData_t *cpdp; ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); + i = 0; /* First; check our own pending dealloc carrier list... */ @@ -4646,6 +4660,29 @@ erts_alcu_test(UWord op, UWord a1, UWord a2) case 0x01c: return (unsigned long) BLK_TO_MBC((Block_t*) a1); case 0x01d: ((Allctr_t*) a1)->add_mbc((Allctr_t*)a1, (Carrier_t*)a2); break; case 0x01e: ((Allctr_t*) a1)->remove_mbc((Allctr_t*)a1, (Carrier_t*)a2); break; +#ifdef ERTS_SMP + case 0x01f: return (UWord) sizeof(ErtsAlcCrrPool_t); + case 0x020: + SET_CARRIER_HDR((Carrier_t *) a2, 0, SCH_SYS_ALLOC|SCH_MBC, (Allctr_t *) a1); + cpool_init_carrier_data((Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x021: + cpool_insert((Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x022: + cpool_delete((Allctr_t *) a1, (Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x023: return (UWord) cpool_is_empty((Allctr_t *) a1); + case 0x024: return (UWord) cpool_dbg_is_in_pool((Allctr_t *) a1, (Carrier_t *) a2); +#else + case 0x01f: return (UWord) 0; + case 0x020: return (UWord) 0; + case 0x021: return (UWord) 0; + case 0x022: return (UWord) 0; + case 0x023: return (UWord) 0; + case 0x024: return (UWord) 0; +#endif + default: ASSERT(0); return ~((UWord) 0); } return 0; diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl index 22b5d93983..33abd45982 100644 --- a/erts/emulator/test/alloc_SUITE.erl +++ b/erts/emulator/test/alloc_SUITE.erl @@ -28,7 +28,8 @@ bucket_index/1, bucket_mask/1, rbtree/1, - mseg_clear_cache/1]). + mseg_clear_cache/1, + cpool/1]). -export([init_per_testcase/2, end_per_testcase/2]). @@ -40,7 +41,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [basic, coalesce, threads, realloc_copy, bucket_index, - bucket_mask, rbtree, mseg_clear_cache]. + bucket_mask, rbtree, mseg_clear_cache, cpool]. groups() -> []. @@ -105,6 +106,10 @@ mseg_clear_cache(suite) -> []; mseg_clear_cache(doc) -> []; mseg_clear_cache(Cfg) -> ?line drv_case(Cfg). +cpool(suite) -> []; +cpool(doc) -> []; +cpool(Cfg) -> ?line drv_case(Cfg). + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% %% %% Internal functions %% diff --git a/erts/emulator/test/alloc_SUITE_data/Makefile.src b/erts/emulator/test/alloc_SUITE_data/Makefile.src index 035415d73e..1d4286e671 100644 --- a/erts/emulator/test/alloc_SUITE_data/Makefile.src +++ b/erts/emulator/test/alloc_SUITE_data/Makefile.src @@ -23,7 +23,8 @@ TEST_DRVS = basic@dll@ \ bucket_index@dll@ \ bucket_mask@dll@ \ rbtree@dll@ \ - mseg_clear_cache@dll@ + mseg_clear_cache@dll@ \ + cpool@dll@ CC = @CC@ LD = @LD@ diff --git a/erts/emulator/test/alloc_SUITE_data/allocator_test.h b/erts/emulator/test/alloc_SUITE_data/allocator_test.h index f1d6d59211..c37b074f93 100644 --- a/erts/emulator/test/alloc_SUITE_data/allocator_test.h +++ b/erts/emulator/test/alloc_SUITE_data/allocator_test.h @@ -78,6 +78,12 @@ typedef void* erts_cond; #define BLK_TO_MBC(B) ((Carrier_t *) ALC_TEST1(0x01c, (B))) #define ADD_MBC(A, C) ((void) ALC_TEST2(0x01d, (A), (C))) #define REMOVE_MBC(A, C) ((void) ALC_TEST2(0x01e, (A), (C))) +#define ZERO_CRR_SIZE ((Ulong) ALC_TEST0(0x01f)) +#define ZERO_CRR_INIT(A,B) ((Carrier_t *) ALC_TEST2(0x020, (A), (B))) +#define CPOOL_INSERT(A,B) ((Carrier_t *) ALC_TEST2(0x021, (A), (B))) +#define CPOOL_DELETE(A,B) ((Carrier_t *) ALC_TEST2(0x022, (A), (B))) +#define CPOOL_IS_EMPTY(A) ((int) ALC_TEST1(0x023, (A))) +#define CPOOL_IS_IN_POOL(A,B) ((int) ALC_TEST2(0x024, (A), (B))) /* From erl_goodfit_alloc.c */ #define BKT_IX(A, S) ((Ulong) ALC_TEST2(0x100, (A), (S))) @@ -133,5 +139,6 @@ typedef void* erts_cond; #define THR_CREATE(F, A) ((erts_thread) ALC_TEST2(0xf10, (F), (A))) #define THR_JOIN(T) ((void) ALC_TEST1(0xf11, (T))) #define THR_EXIT(R) ((void) ALC_TEST1(0xf12, (R))) +#define IS_SMP_ENABLED ((int) ALC_TEST0(0xf13)) #endif diff --git a/erts/emulator/test/alloc_SUITE_data/cpool.c b/erts/emulator/test/alloc_SUITE_data/cpool.c new file mode 100644 index 0000000000..276ed7be04 --- /dev/null +++ b/erts/emulator/test/alloc_SUITE_data/cpool.c @@ -0,0 +1,157 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + + +#ifndef __WIN32__ +#include +#include +#include +#endif +#include +#include +#include +#include "testcase_driver.h" +#include "allocator_test.h" + +#define FATAL_ASSERT(A) \ + ((void) ((A) \ + ? 1 \ + : (fatal_assert_failed(#A, \ + (char *) __FILE__, \ + __LINE__), \ + 0))) + +static void +fatal_assert_failed(char* expr, char* file, int line) +{ + fflush(stdout); + fprintf(stderr, "%s:%d: Assertion failed: %s\n", + file, line, expr); + fflush(stderr); + abort(); +} + +#define TEST_NO_THREADS 10 +#define TEST_NO_CARRIERS_PER_THREAD 100000 +#define TEST_CARRIERS_OFFSET 5 + +static Allctr_t *alloc = NULL; + +static void stop_allocator(void) +{ + if (alloc) { + STOP_ALC(alloc); + alloc = NULL; + } +} + + +void *thread_func(void *arg); + +char * +testcase_name(void) +{ + return "cpool"; +} + +void +testcase_cleanup(TestCaseState_t *tcs) +{ + stop_allocator(); +} + +void * +thread_func(void *arg) +{ + Carrier_t *crr = (Carrier_t *) arg; + int i; + + for (i = 0; i < (TEST_NO_CARRIERS_PER_THREAD+TEST_CARRIERS_OFFSET); i++) { + int d; + if (i < TEST_NO_CARRIERS_PER_THREAD) { + CPOOL_INSERT(alloc, crr[i]); + if ((i & 0x7) == 0) + FATAL_ASSERT(CPOOL_IS_IN_POOL(alloc, crr[i])); + } + d = i-TEST_CARRIERS_OFFSET; + if (d >= 0) { + CPOOL_DELETE(alloc, crr[d]); + if ((d & 0x7) == 0) + FATAL_ASSERT(!CPOOL_IS_IN_POOL(alloc, crr[d])); + } + } + for (i = 0; i < TEST_NO_CARRIERS_PER_THREAD; i++) + FATAL_ASSERT(!CPOOL_IS_IN_POOL(alloc, crr[i])); + return NULL; +} + +static struct { + erts_thread tid; + Carrier_t *crr[TEST_NO_CARRIERS_PER_THREAD]; +} threads[TEST_NO_THREADS] = {{0}}; + +void +testcase_run(TestCaseState_t *tcs) +{ + int no_threads, t, c; + char *block, *p; + Ulong zcrr_sz; + + if (!IS_SMP_ENABLED) + testcase_skipped(tcs, "No SMP support"); + + alloc = START_ALC("Zero carrier allocator", 1, NULL); + + zcrr_sz = ZERO_CRR_SIZE; + + block = p = ALLOC(alloc, zcrr_sz*TEST_NO_THREADS*TEST_NO_CARRIERS_PER_THREAD); + + ASSERT(tcs, block != NULL); + + for (t = 0; t < TEST_NO_THREADS; t++) { + for (c = 0; c < TEST_NO_CARRIERS_PER_THREAD; c++) { + Carrier_t *crr = (Carrier_t *) p; + p += zcrr_sz; + ZERO_CRR_INIT(alloc, crr); + threads[t].crr[c] = crr; + } + } + + no_threads = 0; + for (t = 0; t < TEST_NO_THREADS; t++) { + threads[t].tid = THR_CREATE(thread_func, (void *) threads[t].crr); + if (threads[t].tid) { + testcase_printf(tcs, "Successfully created thread %d\n", t); + no_threads++; + } + else { + testcase_printf(tcs, "Failed to create thread %d\n", t); + break; + } + } + + for (t = 0; t < no_threads; t++) + THR_JOIN(threads[t].tid); + + FATAL_ASSERT(CPOOL_IS_EMPTY(alloc)); + + FREE(alloc, block); + + ASSERT(tcs, no_threads == TEST_NO_THREADS); +} -- cgit v1.2.3