diff options
Diffstat (limited to 'framework/src/suricata/src/util-profiling-locks.c')
| -rw-r--r-- | framework/src/suricata/src/util-profiling-locks.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/framework/src/suricata/src/util-profiling-locks.c b/framework/src/suricata/src/util-profiling-locks.c deleted file mode 100644 index 7719e6d5..00000000 --- a/framework/src/suricata/src/util-profiling-locks.c +++ /dev/null @@ -1,241 +0,0 @@ -/* Copyright (C) 2007-2012 Open Information Security Foundation - * - * You can copy, redistribute or modify this Program under the terms of - * the GNU General Public License version 2 as published by the Free - * Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/** - * \file - * - * \author Victor Julien <victor@inliniac.net> - * - * An API for profiling locks. - * - */ - -#include "suricata-common.h" -#include "util-profiling-locks.h" -#include "util-hashlist.h" - -#ifdef PROFILING -#ifdef PROFILE_LOCKING - -__thread ProfilingLock locks[PROFILING_MAX_LOCKS]; -__thread int locks_idx = 0; -__thread int record_locks = 0; - -int profiling_locks_enabled = 0; -int profiling_locks_output_to_file = 0; -char *profiling_locks_file_name = NULL; -char *profiling_locks_file_mode = "a"; - -typedef struct LockRecord_ { - char *file; // hash - - char *func; // info - int type; // info - - int line; // hash - - uint32_t cont; - uint32_t ticks_cnt; - uint64_t ticks_total; - uint64_t ticks_max; -} LockRecord; - -HashListTable *lock_records; -pthread_mutex_t lock_records_mutex; - -static uint32_t LockRecordHash(HashListTable *ht, void *buf, uint16_t buflen) -{ - LockRecord *fn = (LockRecord *)buf; - uint32_t hash = strlen(fn->file) + fn->line; - uint16_t u; - - for (u = 0; u < strlen(fn->file); u++) { - hash += fn->file[u]; - } - - return hash % ht->array_size; -} - -static char LockRecordCompare(void *buf1, uint16_t len1, void *buf2, uint16_t len2) -{ - LockRecord *fn1 = (LockRecord *)buf1; - LockRecord *fn2 = (LockRecord *)buf2; - - if (fn1->line != fn2->line) - return 0; - - if (fn1->file == fn2->file) - return 1; - - return 0; -} - -static void LockRecordFree(void *data) -{ - LockRecord *fn = (LockRecord *)data; - - if (fn == NULL) - return; - SCFree(fn); -} - -int LockRecordInitHash() -{ - pthread_mutex_init(&lock_records_mutex, NULL); - pthread_mutex_lock(&lock_records_mutex); - - lock_records = HashListTableInit(512, LockRecordHash, LockRecordCompare, LockRecordFree); - BUG_ON(lock_records == NULL); - - pthread_mutex_unlock(&lock_records_mutex); - - return 0; -} - -void LockRecordAdd(ProfilingLock *l) -{ - LockRecord fn = { NULL, NULL, 0,0,0,0,0,0}, *ptr = &fn; - fn.file = l->file; - fn.line = l->line; - - LockRecord *lookup_fn = (LockRecord *)HashListTableLookup(lock_records, (void *)ptr, 0); - if (lookup_fn == NULL) { - LockRecord *new = SCMalloc(sizeof(LockRecord)); - BUG_ON(new == NULL); - - new->file = l->file; - new->line = l->line; - new->type = l->type; - new->cont = l->cont; - new->func = l->func; - new->ticks_max = l->ticks; - new->ticks_total = l->ticks; - new->ticks_cnt = 1; - - HashListTableAdd(lock_records, (void *)new, 0); - } else { - lookup_fn->ticks_total += l->ticks; - if (l->ticks > lookup_fn->ticks_max) - lookup_fn->ticks_max = l->ticks; - lookup_fn->ticks_cnt++; - lookup_fn->cont += l->cont; - } - - return; -} - -/** \param p void ptr to Packet struct */ -void SCProfilingAddPacketLocks(void *p) -{ - int i; - - if (profiling_locks_enabled == 0) - return; - - for (i = 0; i < locks_idx; i++) { - pthread_mutex_lock(&lock_records_mutex); - LockRecordAdd(&locks[i]); - pthread_mutex_unlock(&lock_records_mutex); - } -} - -void SCProfilingListLocks(void) -{ - FILE *fp = NULL; - - if (profiling_locks_output_to_file == 1) { - fp = fopen(profiling_locks_file_name, profiling_locks_file_mode); - - if (fp == NULL) { - SCLogError(SC_ERR_FOPEN, "failed to open %s: %s", - profiling_locks_file_name, strerror(errno)); - return; - } - } else { - fp = stdout; - } - - fprintf(fp, "\n\nLock Cnt Avg ticks Max ticks Total ticks Cont Func\n"); - fprintf(fp, "------------------ ---------- --------- ------------ ------------ ------- ---------\n"); - - uint64_t total = 0; - uint32_t cont = 0; - uint64_t cnt = 0; - - HashListTableBucket *b = HashListTableGetListHead(lock_records); - while (b) { - LockRecord *r = HashListTableGetListData(b); - - char *lock; - switch (r->type) { - case LOCK_MUTEX: - lock = "mtx"; - break; - case LOCK_SPIN: - lock = "spn"; - break; - case LOCK_RWW: - lock = "rww"; - break; - case LOCK_RWR: - lock = "rwr"; - break; - default: - lock = "bug"; - break; - } - - char str[128] = ""; - snprintf(str, sizeof(str), "(%s) %s:%d", lock,r->file, r->line); - - fprintf(fp, "%-50s %-10u %-9"PRIu64" %-12"PRIu64" %-12"PRIu64" %-7u %-s\n", - str, r->ticks_cnt, (uint64_t)((uint64_t)r->ticks_total/(uint64_t)r->ticks_cnt), r->ticks_max, r->ticks_total, r->cont, r->func); - - total += r->ticks_total; - cnt += r->ticks_cnt; - cont += r->cont; - - b = HashListTableGetListNext(b); - } - - fprintf(fp, "\nOverall: locks %"PRIu64", average cost %"PRIu64", contentions %"PRIu32", total ticks %"PRIu64"\n", - cnt, (uint64_t)((uint64_t)total/(uint64_t)cnt), cont, total); - - fclose(fp); -} - -void LockRecordFreeHash() -{ - if (profiling_locks_enabled == 0) - return; - - pthread_mutex_lock(&lock_records_mutex); - - SCProfilingListLocks(); - - if (lock_records != NULL) { - HashListTableFree(lock_records); - lock_records = NULL; - } - pthread_mutex_unlock(&lock_records_mutex); - - pthread_mutex_destroy(&lock_records_mutex); -} - -#endif -#endif - |