Add --debug for enabling internal dumps on various actions

[fio.git] / memory.c

diff --git a/memory.c b/memory.c
index 5678350f79b2527e50f7f58bd0542fdab9e8e993..be1fd24c8037623864333680c268770785f0e10b 100644 (file)
--- a/memory.c
+++ b/memory.c
@@ -12,6 +12,7 @@ static void *pinned_mem;
 void fio_unpin_memory(void)
 {
        if (pinned_mem) {
+               dprint(FD_MEM, "unpinning %llu bytes\n", mlock_size);
                if (munlock(pinned_mem, mlock_size) < 0)
                        perror("munlock");
                munmap(pinned_mem, mlock_size);
@@ -26,6 +27,8 @@ int fio_pin_memory(void)
        if (!mlock_size)
                return 0;
 
+       dprint(FD_MEM, "pinning %llu bytes\n", mlock_size);
+
        /*
         * Don't allow mlock of more than real_mem-128MB
         */
@@ -61,6 +64,7 @@ static int alloc_mem_shm(struct thread_data *td)
                flags |= SHM_HUGETLB;
 
        td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, flags);
+       dprint(FD_MEM, "shmget %zu, %d\n", td->orig_buffer_size, td->shm_id);
        if (td->shm_id < 0) {
                td_verror(td, errno, "shmget");
                if (geteuid() != 0 && errno == ENOMEM)
@@ -78,6 +82,7 @@ static int alloc_mem_shm(struct thread_data *td)
        }
 
        td->orig_buffer = shmat(td->shm_id, NULL, 0);
+       dprint(FD_MEM, "shmat %d, %p\n", td->shm_id, td->orig_buffer);
        if (td->orig_buffer == (void *) -1) {
                td_verror(td, errno, "shmat");
                td->orig_buffer = NULL;
@@ -110,6 +115,8 @@ static int alloc_mem_mmap(struct thread_data *td)
                flags |= OS_MAP_ANON;
 
        td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, flags, td->mmapfd, 0);
+       dprint(FD_MEM, "mmap %zu/%d %p\n", td->orig_buffer_size, td->mmapfd,
+                                                       td->orig_buffer);
        if (td->orig_buffer == MAP_FAILED) {
                td_verror(td, errno, "mmap");
                td->orig_buffer = NULL;
@@ -132,6 +139,7 @@ static int alloc_mem_malloc(struct thread_data *td)
                bsize += page_mask;
                
        td->orig_buffer = malloc(bsize);
+       dprint(FD_MEM, "malloc %u %p\n", bsize, td->orig_buffer);
        if (td->orig_buffer)
                return 0;
 
@@ -167,15 +175,19 @@ int allocate_io_mem(struct thread_data *td)
 
 void free_io_mem(struct thread_data *td)
 {
-       if (td->o.mem_type == MEM_MALLOC)
+       if (td->o.mem_type == MEM_MALLOC) {
+               dprint(FD_MEM, "free mem %p\n", td->orig_buffer);
                free(td->orig_buffer);
-       else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE) {
+       } else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE) {
                struct shmid_ds sbuf;
 
+               dprint(FD_MEM, "shmdt/ctl %d %p\n", td->shm_id,td->orig_buffer);
                shmdt(td->orig_buffer);
                shmctl(td->shm_id, IPC_RMID, &sbuf);
        } else if (td->o.mem_type == MEM_MMAP ||
                   td->o.mem_type == MEM_MMAPHUGE) {
+               dprint(FD_MEM, "munmap %zu %p\n", td->orig_buffer_size,
+                                                       td->orig_buffer);
                munmap(td->orig_buffer, td->orig_buffer_size);
                if (td->mmapfile) {
                        close(td->mmapfd);