X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=io_u.c;h=16065128c324e76e3cf9326ff1824fec42baad5b;hp=e8894d5dca62ff07a9e39174191ae877490793b5;hb=56d9fa4b8d4fa5166e3ec5dcdd37b5789b2cb01d;hpb=77b451cc30ab109050235e80b4988ab3abbe6d13

diff --git a/io_u.c b/io_u.c
index e8894d5d..16065128 100644
--- a/io_u.c
+++ b/io_u.c
@@ -68,6 +68,9 @@ static uint64_t last_block(struct thread_data *td, struct fio_file *f,
 	if (td->o.zone_range)
 		max_size = td->o.zone_range;
 
+	if (td->o.min_bs[ddir] > td->o.ba[ddir])
+		max_size -= td->o.min_bs[ddir] - td->o.ba[ddir];
+
 	max_blocks = max_size / (uint64_t) td->o.ba[ddir];
 	if (!max_blocks)
 		return 0;
@@ -83,13 +86,15 @@ struct rand_off {
 static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
 				  enum fio_ddir ddir, uint64_t *b)
 {
-	uint64_t r, lastb;
-
-	lastb = last_block(td, f, ddir);
-	if (!lastb)
-		return 1;
+	uint64_t r;
 
 	if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) {
+		uint64_t lastb;
+
+		lastb = last_block(td, f, ddir);
+		if (!lastb)
+			return 1;
+
 		r = __rand(&td->random_state);
 
 		dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
@@ -98,7 +103,9 @@ static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
 	} else {
 		uint64_t off = 0;
 
-		if (lfsr_next(&f->lfsr, &off, lastb))
+		assert(fio_file_lfsr(f));
+
+		if (lfsr_next(&f->lfsr, &off))
 			return 1;
 
 		*b = off;
@@ -142,6 +149,15 @@ static int __get_next_rand_offset_pareto(struct thread_data *td,
 	return 0;
 }
 
+static int __get_next_rand_offset_gauss(struct thread_data *td,
+					struct fio_file *f, enum fio_ddir ddir,
+					uint64_t *b)
+{
+	*b = gauss_next(&f->gauss);
+	return 0;
+}
+
+
 static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b)
 {
 	struct rand_off *r1 = flist_entry(a, struct rand_off, list);
@@ -159,6 +175,8 @@ static int get_off_from_method(struct thread_data *td, struct fio_file *f,
 		return __get_next_rand_offset_zipf(td, f, ddir, b);
 	else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
 		return __get_next_rand_offset_pareto(td, f, ddir, b);
+	else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
+		return __get_next_rand_offset_gauss(td, f, ddir, b);
 
 	log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
 	return 1;
@@ -247,7 +265,7 @@ static int get_next_rand_block(struct thread_data *td, struct fio_file *f,
 	}
 
 	dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
-			f->file_name, (unsigned long long) f->last_pos,
+			f->file_name, (unsigned long long) f->last_pos[ddir],
 			(unsigned long long) f->real_file_size);
 	return 1;
 }
@@ -259,17 +277,17 @@ static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
 
 	assert(ddir_rw(ddir));
 
-	if (f->last_pos >= f->io_size + get_start_offset(td, f) &&
+	if (f->last_pos[ddir] >= f->io_size + get_start_offset(td, f) &&
 	    o->time_based)
-		f->last_pos = f->last_pos - f->io_size;
+		f->last_pos[ddir] = f->last_pos[ddir] - f->io_size;
 
-	if (f->last_pos < f->real_file_size) {
+	if (f->last_pos[ddir] < f->real_file_size) {
 		uint64_t pos;
 
-		if (f->last_pos == f->file_offset && o->ddir_seq_add < 0)
-			f->last_pos = f->real_file_size;
+		if (f->last_pos[ddir] == f->file_offset && o->ddir_seq_add < 0)
+			f->last_pos[ddir] = f->real_file_size;
 
-		pos = f->last_pos - f->file_offset;
+		pos = f->last_pos[ddir] - f->file_offset;
 		if (pos && o->ddir_seq_add) {
 			pos += o->ddir_seq_add;
 
@@ -328,8 +346,8 @@ static int get_next_block(struct thread_data *td, struct io_u *io_u,
 				*is_random = 0;
 			}
 		} else if (td->o.rw_seq == RW_SEQ_IDENT) {
-			if (f->last_start != -1ULL)
-				offset = f->last_start - f->file_offset;
+			if (f->last_start[ddir] != -1ULL)
+				offset = f->last_start[ddir] - f->file_offset;
 			else
 				offset = 0;
 			ret = 0;
@@ -525,6 +543,12 @@ void io_u_quiesce(struct thread_data *td)
 	 * io's that have been actually submitted to an async engine,
 	 * and cur_depth is meaningless for sync engines.
 	 */
+	if (td->io_u_queued || td->cur_depth) {
+		int fio_unused ret;
+
+		ret = td_io_commit(td);
+	}
+
 	while (td->io_u_in_flight) {
 		int fio_unused ret;
 
@@ -535,7 +559,6 @@ void io_u_quiesce(struct thread_data *td)
 static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir)
 {
 	enum fio_ddir odir = ddir ^ 1;
-	struct timeval t;
 	long usec;
 
 	assert(ddir_rw(ddir));
@@ -570,9 +593,7 @@ static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir)
 
 	io_u_quiesce(td);
 
-	fio_gettime(&t, NULL);
-	usec_sleep(td, usec);
-	usec = utime_since_now(&t);
+	usec = usec_sleep(td, usec);
 
 	td->rate_pending_usleep[ddir] -= usec;
 
@@ -580,9 +601,6 @@ static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir)
 	if (td_rw(td) && __should_check_rate(td, odir))
 		td->rate_pending_usleep[odir] -= usec;
 
-	if (ddir == DDIR_TRIM)
-		return DDIR_TRIM;
-
 	return ddir;
 }
 
@@ -741,7 +759,7 @@ static int fill_io_u(struct thread_data *td, struct io_u *io_u)
 		 */
 		if (f->file_offset >= f->real_file_size)
 			f->file_offset = f->real_file_size - f->file_offset;
-		f->last_pos = f->file_offset;
+		f->last_pos[io_u->ddir] = f->file_offset;
 		td->io_skip_bytes += td->o.zone_skip;
 	}
 
@@ -1282,6 +1300,9 @@ struct io_u *__get_io_u(struct thread_data *td)
 {
 	struct io_u *io_u = NULL;
 
+	if (td->stop_io)
+		return NULL;
+
 	td_io_u_lock(td);
 
 again:
@@ -1466,8 +1487,8 @@ struct io_u *get_io_u(struct thread_data *td)
 			goto err_put;
 		}
 
-		f->last_start = io_u->offset;
-		f->last_pos = io_u->offset + io_u->buflen;
+		f->last_start[io_u->ddir] = io_u->offset;
+		f->last_pos[io_u->ddir] = io_u->offset + io_u->buflen;
 
 		if (io_u->ddir == DDIR_WRITE) {
 			if (td->flags & TD_F_REFILL_BUFFERS) {
@@ -1642,13 +1663,22 @@ static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
 		if (!(io_u->flags & IO_U_F_VER_LIST))
 			td->this_io_bytes[ddir] += bytes;
 
-		if (ddir == DDIR_WRITE && f) {
-			if (f->first_write == -1ULL ||
-			    io_u->offset < f->first_write)
-				f->first_write = io_u->offset;
-			if (f->last_write == -1ULL ||
-			    ((io_u->offset + bytes) > f->last_write))
-				f->last_write = io_u->offset + bytes;
+		if (ddir == DDIR_WRITE) {
+			if (f) {
+				if (f->first_write == -1ULL ||
+				    io_u->offset < f->first_write)
+					f->first_write = io_u->offset;
+				if (f->last_write == -1ULL ||
+				    ((io_u->offset + bytes) > f->last_write))
+					f->last_write = io_u->offset + bytes;
+			}
+			if (td->last_write_comp) {
+				int idx = td->last_write_idx++;
+
+				td->last_write_comp[idx] = io_u->offset;
+				if (td->last_write_idx == td->o.iodepth)
+					td->last_write_idx = 0;
+			}
 		}
 
 		if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
@@ -1845,9 +1875,9 @@ static void save_buf_state(struct thread_data *td, struct frand_state *rs)
 void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
 		    unsigned int max_bs)
 {
-	if (td->o.buffer_pattern_bytes)
-		fill_buffer_pattern(td, buf, max_bs);
-	else if (!td->o.zero_buffers) {
+	struct thread_options *o = &td->o;
+
+	if (o->compress_percentage || o->dedupe_percentage) {
 		unsigned int perc = td->o.compress_percentage;
 		struct frand_state *rs;
 		unsigned int left = max_bs;
@@ -1865,7 +1895,8 @@ void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
 					seg = min_write;
 
 				fill_random_buf_percentage(rs, buf, perc, seg,
-								min_write);
+					min_write, o->buffer_pattern,
+						   o->buffer_pattern_bytes);
 			} else
 				fill_random_buf(rs, buf, min_write);
 
@@ -1873,8 +1904,12 @@ void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
 			left -= min_write;
 			save_buf_state(td, rs);
 		} while (left);
-	} else
+	} else if (o->buffer_pattern_bytes)
+		fill_buffer_pattern(td, buf, max_bs);
+	else if (o->zero_buffers)
 		memset(buf, 0, max_bs);
+	else
+		fill_random_buf(get_buf_state(td), buf, max_bs);
 }
 
 /*