X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=io_u.c;h=580c414622db161fe78061413ac5bef6de7e0efb;hb=5630eccf1e7336095804ee635504dc333c4d519f;hp=1d6872edb2876794e9c4c07d5ea5e05a726f34dd;hpb=53bb5d9c037e842970b32bc828dbe809b42c144d;p=fio.git

diff --git a/io_u.c b/io_u.c
index 1d6872ed..580c4146 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1,12 +1,8 @@
 #include <unistd.h>
-#include <fcntl.h>
 #include <string.h>
-#include <signal.h>
-#include <time.h>
 #include <assert.h>
 
 #include "fio.h"
-#include "hash.h"
 #include "verify.h"
 #include "trim.h"
 #include "lib/rand.h"
@@ -81,11 +77,6 @@ static uint64_t last_block(struct thread_data *td, struct fio_file *f,
 	return max_blocks;
 }
 
-struct rand_off {
-	struct flist_head list;
-	uint64_t off;
-};
-
 static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
 				  enum fio_ddir ddir, uint64_t *b,
 				  uint64_t lastb)
@@ -163,7 +154,6 @@ static int __get_next_rand_offset_zoned_abs(struct thread_data *td,
 {
 	struct zone_split_index *zsi;
 	uint64_t lastb, send, stotal;
-	static int warned;
 	unsigned int v;
 
 	lastb = last_block(td, f, ddir);
@@ -178,7 +168,7 @@ bail:
 	/*
 	 * Generate a value, v, between 1 and 100, both inclusive
 	 */
-	v = rand32_between(&td->zone_state, 1, 100);
+	v = rand_between(&td->zone_state, 1, 100);
 
 	/*
 	 * Find our generated table. 'send' is the end block of this zone,
@@ -192,10 +182,8 @@ bail:
 	 * Should never happen
 	 */
 	if (send == -1U) {
-		if (!warned) {
+		if (!fio_did_warn(FIO_WARN_ZONED_BUG))
 			log_err("fio: bug in zoned generation\n");
-			warned = 1;
-		}
 		goto bail;
 	} else if (send > lastb) {
 		/*
@@ -223,7 +211,6 @@ static int __get_next_rand_offset_zoned(struct thread_data *td,
 {
 	unsigned int v, send, stotal;
 	uint64_t offset, lastb;
-	static int warned;
 	struct zone_split_index *zsi;
 
 	lastb = last_block(td, f, ddir);
@@ -238,7 +225,7 @@ bail:
 	/*
 	 * Generate a value, v, between 1 and 100, both inclusive
 	 */
-	v = rand32_between(&td->zone_state, 1, 100);
+	v = rand_between(&td->zone_state, 1, 100);
 
 	zsi = &td->zone_state_index[ddir][v - 1];
 	stotal = zsi->size_perc_prev;
@@ -248,10 +235,8 @@ bail:
 	 * Should never happen
 	 */
 	if (send == -1U) {
-		if (!warned) {
+		if (!fio_did_warn(FIO_WARN_ZONED_BUG))
 			log_err("fio: bug in zoned generation\n");
-			warned = 1;
-		}
 		goto bail;
 	}
 
@@ -282,16 +267,8 @@ bail:
 	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);
-	struct rand_off *r2 = flist_entry(b, struct rand_off, list);
-
-	return r1->off - r2->off;
-}
-
-static int get_off_from_method(struct thread_data *td, struct fio_file *f,
-			       enum fio_ddir ddir, uint64_t *b)
+static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
+				enum fio_ddir ddir, uint64_t *b)
 {
 	if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) {
 		uint64_t lastb;
@@ -316,25 +293,6 @@ static int get_off_from_method(struct thread_data *td, struct fio_file *f,
 	return 1;
 }
 
-/*
- * Sort the reads for a verify phase in batches of verifysort_nr, if
- * specified.
- */
-static inline bool should_sort_io(struct thread_data *td)
-{
-	if (!td->o.verifysort_nr || !td->o.do_verify)
-		return false;
-	if (!td_random(td))
-		return false;
-	if (td->runstate != TD_VERIFYING)
-		return false;
-	if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE ||
-	    td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
-		return false;
-
-	return true;
-}
-
 static bool should_do_random(struct thread_data *td, enum fio_ddir ddir)
 {
 	unsigned int v;
@@ -342,49 +300,11 @@ static bool should_do_random(struct thread_data *td, enum fio_ddir ddir)
 	if (td->o.perc_rand[ddir] == 100)
 		return true;
 
-	v = rand32_between(&td->seq_rand_state[ddir], 1, 100);
+	v = rand_between(&td->seq_rand_state[ddir], 1, 100);
 
 	return v <= td->o.perc_rand[ddir];
 }
 
-static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
-				enum fio_ddir ddir, uint64_t *b)
-{
-	struct rand_off *r;
-	int i, ret = 1;
-
-	if (!should_sort_io(td))
-		return get_off_from_method(td, f, ddir, b);
-
-	if (!flist_empty(&td->next_rand_list)) {
-fetch:
-		r = flist_first_entry(&td->next_rand_list, struct rand_off, list);
-		flist_del(&r->list);
-		*b = r->off;
-		free(r);
-		return 0;
-	}
-
-	for (i = 0; i < td->o.verifysort_nr; i++) {
-		r = malloc(sizeof(*r));
-
-		ret = get_off_from_method(td, f, ddir, &r->off);
-		if (ret) {
-			free(r);
-			break;
-		}
-
-		flist_add(&r->list, &td->next_rand_list);
-	}
-
-	if (ret && !i)
-		return ret;
-
-	assert(!flist_empty(&td->next_rand_list));
-	flist_sort(NULL, &td->next_rand_list, flist_cmp);
-	goto fetch;
-}
-
 static void loop_cache_invalidate(struct thread_data *td, struct fio_file *f)
 {
 	struct thread_options *o = &td->o;
@@ -405,9 +325,9 @@ static int get_next_rand_block(struct thread_data *td, struct fio_file *f,
 	if (td->o.time_based ||
 	    (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)) {
 		fio_file_reset(td, f);
+		loop_cache_invalidate(td, f);
 		if (!get_next_rand_offset(td, f, ddir, b))
 			return 0;
-		loop_cache_invalidate(td, f);
 	}
 
 	dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
@@ -436,7 +356,11 @@ static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
 	if (f->last_pos[ddir] < f->real_file_size) {
 		uint64_t pos;
 
-		if (f->last_pos[ddir] == f->file_offset && o->ddir_seq_add < 0) {
+		/*
+		 * Only rewind if we already hit the end
+		 */
+		if (f->last_pos[ddir] == f->file_offset &&
+		    f->file_offset && o->ddir_seq_add < 0) {
 			if (f->real_file_size > f->io_size)
 				f->last_pos[ddir] = f->io_size;
 			else
@@ -476,7 +400,7 @@ static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
 
 static int get_next_block(struct thread_data *td, struct io_u *io_u,
 			  enum fio_ddir ddir, int rw_seq,
-			  unsigned int *is_random)
+			  bool *is_random)
 {
 	struct fio_file *f = io_u->file;
 	uint64_t b, offset;
@@ -490,27 +414,27 @@ static int get_next_block(struct thread_data *td, struct io_u *io_u,
 		if (td_random(td)) {
 			if (should_do_random(td, ddir)) {
 				ret = get_next_rand_block(td, f, ddir, &b);
-				*is_random = 1;
+				*is_random = true;
 			} else {
-				*is_random = 0;
+				*is_random = false;
 				io_u_set(td, io_u, IO_U_F_BUSY_OK);
 				ret = get_next_seq_offset(td, f, ddir, &offset);
 				if (ret)
 					ret = get_next_rand_block(td, f, ddir, &b);
 			}
 		} else {
-			*is_random = 0;
+			*is_random = false;
 			ret = get_next_seq_offset(td, f, ddir, &offset);
 		}
 	} else {
 		io_u_set(td, io_u, IO_U_F_BUSY_OK);
-		*is_random = 0;
+		*is_random = false;
 
 		if (td->o.rw_seq == RW_SEQ_SEQ) {
 			ret = get_next_seq_offset(td, f, ddir, &offset);
 			if (ret) {
 				ret = get_next_rand_block(td, f, ddir, &b);
-				*is_random = 0;
+				*is_random = false;
 			}
 		} else if (td->o.rw_seq == RW_SEQ_IDENT) {
 			if (f->last_start[ddir] != -1ULL)
@@ -543,8 +467,8 @@ static int get_next_block(struct thread_data *td, struct io_u *io_u,
  * until we find a free one. For sequential io, just return the end of
  * the last io issued.
  */
-static int __get_next_offset(struct thread_data *td, struct io_u *io_u,
-			     unsigned int *is_random)
+static int get_next_offset(struct thread_data *td, struct io_u *io_u,
+			   bool *is_random)
 {
 	struct fio_file *f = io_u->file;
 	enum fio_ddir ddir = io_u->ddir;
@@ -578,19 +502,6 @@ static int __get_next_offset(struct thread_data *td, struct io_u *io_u,
 	return 0;
 }
 
-static int get_next_offset(struct thread_data *td, struct io_u *io_u,
-			   unsigned int *is_random)
-{
-	if (td->flags & TD_F_PROFILE_OPS) {
-		struct prof_io_ops *ops = &td->prof_io_ops;
-
-		if (ops->fill_io_u_off)
-			return ops->fill_io_u_off(td, io_u, is_random);
-	}
-
-	return __get_next_offset(td, io_u, is_random);
-}
-
 static inline bool io_u_fits(struct thread_data *td, struct io_u *io_u,
 			     unsigned int buflen)
 {
@@ -599,8 +510,8 @@ static inline bool io_u_fits(struct thread_data *td, struct io_u *io_u,
 	return io_u->offset + buflen <= f->io_size + get_start_offset(td, f);
 }
 
-static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u,
-				      unsigned int is_random)
+static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u,
+				    bool is_random)
 {
 	int ddir = io_u->ddir;
 	unsigned int buflen = 0;
@@ -611,7 +522,7 @@ static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u,
 	assert(ddir_rw(ddir));
 
 	if (td->o.bs_is_seq_rand)
-		ddir = is_random ? DDIR_WRITE: DDIR_READ;
+		ddir = is_random ? DDIR_WRITE : DDIR_READ;
 
 	minbs = td->o.min_bs[ddir];
 	maxbs = td->o.max_bs[ddir];
@@ -661,19 +572,6 @@ static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u,
 	return buflen;
 }
 
-static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u,
-				    unsigned int is_random)
-{
-	if (td->flags & TD_F_PROFILE_OPS) {
-		struct prof_io_ops *ops = &td->prof_io_ops;
-
-		if (ops->fill_io_u_size)
-			return ops->fill_io_u_size(td, io_u, is_random);
-	}
-
-	return __get_next_buflen(td, io_u, is_random);
-}
-
 static void set_rwmix_bytes(struct thread_data *td)
 {
 	unsigned int diff;
@@ -691,7 +589,7 @@ static inline enum fio_ddir get_rand_ddir(struct thread_data *td)
 {
 	unsigned int v;
 
-	v = rand32_between(&td->rwmix_state, 1, 100);
+	v = rand_between(&td->rwmix_state, 1, 100);
 
 	if (v <= td->o.rwmix[DDIR_READ])
 		return DDIR_READ;
@@ -712,11 +610,8 @@ int 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);
-	}
+	if (td->io_u_queued || td->cur_depth)
+		td_io_commit(td);
 
 	while (td->io_u_in_flight) {
 		int ret;
@@ -884,8 +779,8 @@ void put_io_u(struct thread_data *td, struct io_u *io_u)
 		assert(!(td->flags & TD_F_CHILD));
 	}
 	io_u_qpush(&td->io_u_freelist, io_u);
-	td_io_u_unlock(td);
 	td_io_u_free_notify(td);
+	td_io_u_unlock(td);
 }
 
 void clear_io_u(struct thread_data *td, struct io_u *io_u)
@@ -917,8 +812,8 @@ void requeue_io_u(struct thread_data *td, struct io_u **io_u)
 	}
 
 	io_u_rpush(&td->io_u_requeues, __io_u);
-	td_io_u_unlock(td);
 	td_io_u_free_notify(td);
+	td_io_u_unlock(td);
 	*io_u = NULL;
 }
 
@@ -963,7 +858,7 @@ static void __fill_io_u_zone(struct thread_data *td, struct io_u *io_u)
 
 static int fill_io_u(struct thread_data *td, struct io_u *io_u)
 {
-	unsigned int is_random;
+	bool is_random;
 
 	if (td_ioengine_flagged(td, FIO_NOIO))
 		goto out;
@@ -1018,7 +913,7 @@ out:
 	return 0;
 }
 
-static void __io_u_mark_map(unsigned int *map, unsigned int nr)
+static void __io_u_mark_map(uint64_t *map, unsigned int nr)
 {
 	int idx = 0;
 
@@ -1393,13 +1288,6 @@ out:
 
 static struct fio_file *get_next_file(struct thread_data *td)
 {
-	if (td->flags & TD_F_PROFILE_OPS) {
-		struct prof_io_ops *ops = &td->prof_io_ops;
-
-		if (ops->get_next_file)
-			return ops->get_next_file(td);
-	}
-
 	return __get_next_file(td);
 }
 
@@ -1593,6 +1481,7 @@ bool queue_full(const struct thread_data *td)
 struct io_u *__get_io_u(struct thread_data *td)
 {
 	struct io_u *io_u = NULL;
+	int ret;
 
 	if (td->stop_io)
 		return NULL;
@@ -1629,7 +1518,8 @@ again:
 		 * return one
 		 */
 		assert(!(td->flags & TD_F_CHILD));
-		assert(!pthread_cond_wait(&td->free_cond, &td->io_u_lock));
+		ret = pthread_cond_wait(&td->free_cond, &td->io_u_lock);
+		assert(ret == 0);
 		goto again;
 	}
 
@@ -1736,7 +1626,7 @@ static void small_content_scramble(struct io_u *io_u)
 
 /*
  * Return an io_u to be processed. Gets a buflen and offset, sets direction,
- * etc. The returned io_u is fully ready to be prepped and submitted.
+ * etc. The returned io_u is fully ready to be prepped, populated and submitted.
  */
 struct io_u *get_io_u(struct thread_data *td)
 {
@@ -1797,12 +1687,9 @@ struct io_u *get_io_u(struct thread_data *td)
 					td->o.min_bs[DDIR_WRITE],
 					io_u->buflen);
 			} else if ((td->flags & TD_F_SCRAMBLE_BUFFERS) &&
-				   !(td->flags & TD_F_COMPRESS))
+				   !(td->flags & TD_F_COMPRESS) &&
+				   !(td->flags & TD_F_DO_VERIFY))
 				do_scramble = 1;
-			if (td->flags & TD_F_VER_NONE) {
-				populate_verify_io_u(td, io_u);
-				do_scramble = 0;
-			}
 		} else if (io_u->ddir == DDIR_READ) {
 			/*
 			 * Reset the buf_filled parameters so next time if the
@@ -1921,7 +1808,8 @@ static void account_io_completion(struct thread_data *td, struct io_u *io_u,
 
 		if (no_reduce && per_unit_log(td->iops_log))
 			add_iops_sample(td, io_u, bytes);
-	}
+	} else if (ddir_sync(idx) && !td->o.disable_clat)
+		add_sync_clat_sample(&td->ts, llnsec);
 
 	if (td->ts.nr_block_infos && io_u->ddir == DDIR_TRIM) {
 		uint32_t *info = io_u_block_info(td, io_u);
@@ -1959,6 +1847,12 @@ static void file_log_write_comp(const struct thread_data *td, struct fio_file *f
 		f->last_write_idx = 0;
 }
 
+static bool should_account(struct thread_data *td)
+{
+	return ramp_time_over(td) && (td->runstate == TD_RUNNING ||
+					   td->runstate == TD_VERIFYING);
+}
+
 static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
 			 struct io_completion_data *icd)
 {
@@ -1987,15 +1881,17 @@ static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
 	}
 
 	if (ddir_sync(ddir)) {
-		td->last_was_sync = 1;
+		td->last_was_sync = true;
 		if (f) {
 			f->first_write = -1ULL;
 			f->last_write = -1ULL;
 		}
+		if (should_account(td))
+			account_io_completion(td, io_u, icd, ddir, io_u->buflen);
 		return;
 	}
 
-	td->last_was_sync = 0;
+	td->last_was_sync = false;
 	td->last_ddir = ddir;
 
 	if (!io_u->error && ddir_rw(ddir)) {
@@ -2013,8 +1909,7 @@ static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
 		if (ddir == DDIR_WRITE)
 			file_log_write_comp(td, f, io_u->offset, bytes);
 
-		if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
-					   td->runstate == TD_VERIFYING))
+		if (should_account(td))
 			account_io_completion(td, io_u, icd, ddir, bytes);
 
 		icd->bytes_done[ddir] += bytes;
@@ -2174,7 +2069,7 @@ static struct frand_state *get_buf_state(struct thread_data *td)
 		return &td->buf_state;
 	}
 
-	v = rand32_between(&td->dedupe_state, 1, 100);
+	v = rand_between(&td->dedupe_state, 1, 100);
 
 	if (v <= td->o.dedupe_percentage)
 		return &td->buf_state_prev;