X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=io_u.c;h=ebfa0d45a324111a3cda91a087909cf57e063cbe;hp=baf5d474dcee5b10f78a457f61571839f90b4c23;hb=311b84aeb3f8eba70191353b4b9fe0a2576f9d95;hpb=10ba535a5cbb95b5576e33a6f8af093a6ca3bfd7

diff --git a/io_u.c b/io_u.c
index baf5d474..ebfa0d45 100644
--- a/io_u.c
+++ b/io_u.c
@@ -21,6 +21,38 @@ static int random_map_free(struct thread_data *td, struct fio_file *f,
 	return (f->file_map[idx] & (1UL << bit)) == 0;
 }
 
+/*
+ * Mark a given offset as used in the map.
+ */
+static void mark_random_map(struct thread_data *td, struct fio_file *f,
+			    struct io_u *io_u)
+{
+	unsigned int min_bs = td->min_bs[io_u->ddir];
+	unsigned long long block;
+	unsigned int blocks;
+
+	block = io_u->offset / (unsigned long long) min_bs;
+	blocks = 0;
+	while (blocks < (io_u->buflen / min_bs)) {
+		unsigned int idx, bit;
+
+		if (!random_map_free(td, f, block))
+			break;
+
+		idx = RAND_MAP_IDX(td, f, block);
+		bit = RAND_MAP_BIT(td, f, block);
+
+		assert(idx < f->num_maps);
+
+		f->file_map[idx] |= (1UL << bit);
+		block++;
+		blocks++;
+	}
+
+	if ((blocks * min_bs) < io_u->buflen)
+		io_u->buflen = blocks * min_bs;
+}
+
 /*
  * Return the next free block in the map.
  */
@@ -31,7 +63,7 @@ static int get_next_free_block(struct thread_data *td, struct fio_file *f,
 
 	*b = 0;
 	i = 0;
-	while ((*b) * td->min_bs < f->file_size) {
+	while ((*b) * td->rw_min_bs < f->real_file_size) {
 		if (f->file_map[i] != -1UL) {
 			*b += ffz(f->file_map[i]);
 			return 0;
@@ -50,19 +82,21 @@ static int get_next_free_block(struct thread_data *td, struct fio_file *f,
  * the last io issued.
  */
 static int get_next_offset(struct thread_data *td, struct fio_file *f,
-			   unsigned long long *offset)
+			   unsigned long long *offset, int ddir)
 {
 	unsigned long long b, rb;
 	long r;
 
 	if (!td->sequential) {
-		unsigned long long max_blocks = td->io_size / td->min_bs;
+		unsigned long long max_blocks = f->file_size / td->min_bs[ddir];
 		int loops = 50;
 
 		do {
 			r = os_random_long(&td->random_state);
 			b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0));
-			rb = b + (f->file_offset / td->min_bs);
+			if (td->norandommap)
+				break;
+			rb = b + (f->file_offset / td->min_bs[ddir]);
 			loops--;
 		} while (!random_map_free(td, f, rb) && loops);
 
@@ -71,29 +105,30 @@ static int get_next_offset(struct thread_data *td, struct fio_file *f,
 				return 1;
 		}
 	} else
-		b = f->last_pos / td->min_bs;
+		b = f->last_pos / td->min_bs[ddir];
 
-	*offset = (b * td->min_bs) + f->file_offset;
-	if (*offset > f->file_size)
+	*offset = (b * td->min_bs[ddir]) + f->file_offset;
+	if (*offset > f->real_file_size)
 		return 1;
 
 	return 0;
 }
 
-static unsigned int get_next_buflen(struct thread_data *td)
+static unsigned int get_next_buflen(struct thread_data *td, int ddir)
 {
 	unsigned int buflen;
 	long r;
 
-	if (td->min_bs == td->max_bs)
-		buflen = td->min_bs;
+	if (td->min_bs[ddir] == td->max_bs[ddir])
+		buflen = td->min_bs[ddir];
 	else {
 		r = os_random_long(&td->bsrange_state);
-		buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0));
-		buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1);
+		buflen = (unsigned int) (1 + (double) (td->max_bs[ddir] - 1) * r / (RAND_MAX + 1.0));
+		if (!td->bs_unaligned)
+			buflen = (buflen + td->min_bs[ddir] - 1) & ~(td->min_bs[ddir] - 1);
 	}
 
-	if (buflen > td->io_size - td->this_io_bytes[td->ddir]) {
+	if (buflen > td->io_size - td->this_io_bytes[ddir]) {
 		/*
 		 * if using direct/raw io, we may not be able to
 		 * shrink the size. so just fail it.
@@ -101,7 +136,7 @@ static unsigned int get_next_buflen(struct thread_data *td)
 		if (td->io_ops->flags & FIO_RAWIO)
 			return 0;
 
-		buflen = td->io_size - td->this_io_bytes[td->ddir];
+		buflen = td->io_size - td->this_io_bytes[ddir];
 	}
 
 	return buflen;
@@ -112,13 +147,13 @@ static unsigned int get_next_buflen(struct thread_data *td)
  * mixed read/write workload, check the rwmix cycle and switch if
  * necessary.
  */
-static int get_rw_ddir(struct thread_data *td)
+static enum fio_ddir get_rw_ddir(struct thread_data *td)
 {
 	if (td_rw(td)) {
 		struct timeval now;
 		unsigned long elapsed;
 
-		gettimeofday(&now, NULL);
+		fio_gettime(&now, NULL);
 	 	elapsed = mtime_since_now(&td->rwmix_switch);
 
 		/*
@@ -143,35 +178,6 @@ static int get_rw_ddir(struct thread_data *td)
 		return DDIR_WRITE;
 }
 
-/*
- * Mark a given offset as used in the map.
- */
-static void mark_random_map(struct thread_data *td, struct fio_file *f,
-			    struct io_u *io_u)
-{
-	unsigned long long block = io_u->offset / (unsigned long long) td->min_bs;
-	unsigned int blocks = 0;
-
-	while (blocks < (io_u->buflen / td->min_bs)) {
-		unsigned int idx, bit;
-
-		if (!random_map_free(td, f, block))
-			break;
-
-		idx = RAND_MAP_IDX(td, f, block);
-		bit = RAND_MAP_BIT(td, f, block);
-
-		assert(idx < f->num_maps);
-
-		f->file_map[idx] |= (1UL << bit);
-		block++;
-		blocks++;
-	}
-
-	if ((blocks * td->min_bs) < io_u->buflen)
-		io_u->buflen = blocks * td->min_bs;
-}
-
 void put_io_u(struct thread_data *td, struct io_u *io_u)
 {
 	io_u->file = NULL;
@@ -190,18 +196,27 @@ static int fill_io_u(struct thread_data *td, struct fio_file *f,
 		return read_iolog_get(td, io_u);
 
 	/*
-	 * No log, let the seq/rand engine retrieve the next position.
+	 * see if it's time to sync
 	 */
-	if (!get_next_offset(td, f, &io_u->offset)) {
-		io_u->buflen = get_next_buflen(td);
+	if (td->fsync_blocks && !(td->io_blocks[DDIR_WRITE] % td->fsync_blocks)
+	    && should_fsync(td)) {
+		io_u->ddir = DDIR_SYNC;
+		io_u->file = f;
+		return 0;
+	}
 
-		if (io_u->buflen) {
-			io_u->ddir = get_rw_ddir(td);
+	io_u->ddir = get_rw_ddir(td);
 
+	/*
+	 * No log, let the seq/rand engine retrieve the next position.
+	 */
+	if (!get_next_offset(td, f, &io_u->offset, io_u->ddir)) {
+		io_u->buflen = get_next_buflen(td, io_u->ddir);
+		if (io_u->buflen) {
 			/*
 			 * If using a write iolog, store this entry.
 			 */
-			if (td->write_iolog)
+			if (td->write_iolog_file)
 				write_iolog_put(td, io_u);
 
 			io_u->file = f;
@@ -212,6 +227,31 @@ static int fill_io_u(struct thread_data *td, struct fio_file *f,
 	return 1;
 }
 
+static void io_u_mark_depth(struct thread_data *td)
+{
+	int index = 0;
+
+	switch (td->cur_depth) {
+	default:
+		index++;
+	case 32 ... 63:
+		index++;
+	case 16 ... 31:
+		index++;
+	case 8 ... 15:
+		index++;
+	case 4 ... 7:
+		index++;
+	case 2 ... 3:
+		index++;
+	case 1:
+		break;
+	}
+
+	td->io_u_map[index]++;
+	td->total_io_u++;
+}
+
 struct io_u *__get_io_u(struct thread_data *td)
 {
 	struct io_u *io_u = NULL;
@@ -219,11 +259,13 @@ struct io_u *__get_io_u(struct thread_data *td)
 	if (!queue_full(td)) {
 		io_u = list_entry(td->io_u_freelist.next, struct io_u, list);
 
+		io_u->buflen = 0;
 		io_u->error = 0;
 		io_u->resid = 0;
 		list_del(&io_u->list);
 		list_add(&io_u->list, &td->io_u_busylist);
 		td->cur_depth++;
+		io_u_mark_depth(td);
 	}
 
 	return io_u;
@@ -251,58 +293,72 @@ struct io_u *get_io_u(struct thread_data *td, struct fio_file *f)
 		return NULL;
 	}
 
-	if (io_u->buflen + io_u->offset > f->file_size) {
+	if (io_u->buflen + io_u->offset > f->real_file_size) {
 		if (td->io_ops->flags & FIO_RAWIO) {
 			put_io_u(td, io_u);
 			return NULL;
 		}
 
-		io_u->buflen = f->file_size - io_u->offset;
+		io_u->buflen = f->real_file_size - io_u->offset;
 	}
 
-	if (!io_u->buflen) {
-		put_io_u(td, io_u);
-		return NULL;
-	}
+	if (io_u->ddir != DDIR_SYNC) {
+		if (!io_u->buflen) {
+			put_io_u(td, io_u);
+			return NULL;
+		}
 
-	if (!td->read_iolog && !td->sequential)
-		mark_random_map(td, f, io_u);
+		if (!td->read_iolog && !td->sequential && !td->norandommap)
+			mark_random_map(td, f, io_u);
 
-	f->last_pos += io_u->buflen;
+		f->last_pos += io_u->buflen;
 
-	if (td->verify != VERIFY_NONE)
-		populate_verify_io_u(td, io_u);
+		if (td->verify != VERIFY_NONE)
+			populate_verify_io_u(td, io_u);
+	}
 
 	if (td_io_prep(td, io_u)) {
 		put_io_u(td, io_u);
 		return NULL;
 	}
 
-	gettimeofday(&io_u->start_time, NULL);
+	/*
+	 * Set io data pointers.
+	 */
+	io_u->xfer_buf = io_u->buf;
+	io_u->xfer_buflen = io_u->buflen;
+
+	fio_gettime(&io_u->start_time, NULL);
 	return io_u;
 }
 
 void io_completed(struct thread_data *td, struct io_u *io_u,
 		  struct io_completion_data *icd)
 {
-	struct timeval e;
 	unsigned long msec;
 
-	gettimeofday(&e, NULL);
+	if (io_u->ddir == DDIR_SYNC) {
+		td->last_was_sync = 1;
+		return;
+	}
+
+	td->last_was_sync = 0;
 
 	if (!io_u->error) {
 		unsigned int bytes = io_u->buflen - io_u->resid;
-		const int idx = io_u->ddir;
+		const enum fio_ddir idx = io_u->ddir;
 
 		td->io_blocks[idx]++;
 		td->io_bytes[idx] += bytes;
 		td->zone_bytes += bytes;
 		td->this_io_bytes[idx] += bytes;
 
-		msec = mtime_since(&io_u->issue_time, &e);
+		io_u->file->last_completed_pos = io_u->offset + io_u->buflen;
+
+		msec = mtime_since(&io_u->issue_time, &icd->time);
 
 		add_clat_sample(td, idx, msec);
-		add_bw_sample(td, idx);
+		add_bw_sample(td, idx, &icd->time);
 
 		if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE)
 			log_io_piece(td, io_u);
@@ -317,6 +373,8 @@ void ios_completed(struct thread_data *td, struct io_completion_data *icd)
 	struct io_u *io_u;
 	int i;
 
+	fio_gettime(&icd->time, NULL);
+
 	icd->error = 0;
 	icd->bytes_done[0] = icd->bytes_done[1] = 0;
 
@@ -327,5 +385,3 @@ void ios_completed(struct thread_data *td, struct io_completion_data *icd)
 		put_io_u(td, io_u);
 	}
 }
-
-