X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=iolog.c;h=cac1aba21e8bb5b2b53a4e957ebebfd0a13eaf1a;hp=8589df69176411616a62d82fd5ff2a121e89c720;hb=370c2c87bcb4dbcff279fe7235752ed97a04dcab;hpb=243bfe190245a10e9d0981bf2a7c722edc4c43d4

diff --git a/iolog.c b/iolog.c
index 8589df69..cac1aba2 100644
--- a/iolog.c
+++ b/iolog.c
@@ -58,6 +58,7 @@ void log_file(struct thread_data *td, struct fio_file *f,
 static void iolog_delay(struct thread_data *td, unsigned long delay)
 {
 	unsigned long usec = utime_since_now(&td->last_issue);
+	unsigned long this_delay;
 
 	if (delay < usec)
 		return;
@@ -70,7 +71,14 @@ static void iolog_delay(struct thread_data *td, unsigned long delay)
 	if (delay < 100)
 		return;
 
-	usec_sleep(td, delay);
+	while (delay && !td->terminate) {
+		this_delay = delay;
+		if (this_delay > 500000)
+			this_delay = 500000;
+
+		usec_sleep(td, this_delay);
+		delay -= this_delay;
+	}
 }
 
 static int ipo_special(struct thread_data *td, struct io_piece *ipo)
@@ -260,6 +268,33 @@ restart:
 	td->io_hist_len++;
 }
 
+void unlog_io_piece(struct thread_data *td, struct io_u *io_u)
+{
+	struct io_piece *ipo = io_u->ipo;
+
+	if (!ipo)
+		return;
+
+	if (ipo->flags & IP_F_ONRB)
+		rb_erase(&ipo->rb_node, &td->io_hist_tree);
+	else if (ipo->flags & IP_F_ONLIST)
+		flist_del(&ipo->list);
+
+	free(ipo);
+	io_u->ipo = NULL;
+	td->io_hist_len--;
+}
+
+void trim_io_piece(struct thread_data *td, struct io_u *io_u)
+{
+	struct io_piece *ipo = io_u->ipo;
+
+	if (!ipo)
+		return;
+
+	ipo->len = io_u->xfer_buflen - io_u->resid;
+}
+
 void write_iolog_close(struct thread_data *td)
 {
 	fflush(td->iolog_f);
@@ -371,7 +406,7 @@ static int read_iolog2(struct thread_data *td, FILE *f)
 		} else {
 			ipo->offset = offset;
 			ipo->len = bytes;
-			if (bytes > td->o.max_bs[rw])
+			if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw])
 				td->o.max_bs[rw] = bytes;
 			ipo->fileno = fileno;
 			ipo->file_action = file_action;
@@ -516,9 +551,36 @@ void setup_log(struct io_log **log, unsigned long avg_msec, int log_type)
 	*log = l;
 }
 
+#ifdef CONFIG_SETVBUF
+static void *set_file_buffer(FILE *f)
+{
+	size_t size = 1048576;
+	void *buf;
+
+	buf = malloc(size);
+	setvbuf(f, buf, _IOFBF, size);
+	return buf;
+}
+
+static void clear_file_buffer(void *buf)
+{
+	free(buf);
+}
+#else
+static void *set_file_buffer(FILE *f)
+{
+	return NULL;
+}
+
+static void clear_file_buffer(void *buf)
+{
+}
+#endif
+
 void __finish_log(struct io_log *log, const char *name)
 {
 	unsigned int i;
+	void *buf;
 	FILE *f;
 
 	f = fopen(name, "a");
@@ -527,6 +589,8 @@ void __finish_log(struct io_log *log, const char *name)
 		return;
 	}
 
+	buf = set_file_buffer(f);
+
 	for (i = 0; i < log->nr_samples; i++) {
 		fprintf(f, "%lu, %lu, %u, %u\n",
 				(unsigned long) log->log[i].time,
@@ -535,12 +599,14 @@ void __finish_log(struct io_log *log, const char *name)
 	}
 
 	fclose(f);
+	clear_file_buffer(buf);
 	free(log->log);
 	free(log);
 }
 
-int finish_log_named(struct thread_data *td, struct io_log *log,
-		     const char *prefix, const char *postfix, int trylock)
+static int finish_log_named(struct thread_data *td, struct io_log *log,
+			    const char *prefix, const char *postfix,
+			    int trylock)
 {
 	char file_name[256];
 
@@ -563,8 +629,130 @@ int finish_log_named(struct thread_data *td, struct io_log *log,
 	return 0;
 }
 
-int finish_log(struct thread_data *td, struct io_log *log, const char *name,
-	       int trylock)
+static int finish_log(struct thread_data *td, struct io_log *log,
+		      const char *name, int trylock)
 {
 	return finish_log_named(td, log, td->o.name, name, trylock);
 }
+
+static int write_this_log(struct thread_data *td, struct io_log *log,
+			  const char *log_file, const char *name, int try)
+{
+	int ret;
+
+	if (!log)
+		return 0;
+
+	if (log_file)
+		ret = finish_log_named(td, log, log_file, name, try);
+	else
+		ret = finish_log(td, log, name, try);
+
+	return ret;
+}
+
+static int write_iops_log(struct thread_data *td, int try)
+{
+	struct thread_options *o = &td->o;
+
+	return write_this_log(td, td->iops_log, o->iops_log_file, "iops", try);
+}
+
+static int write_slat_log(struct thread_data *td, int try)
+{
+	struct thread_options *o = &td->o;
+
+	return write_this_log(td, td->slat_log, o->lat_log_file, "slat", try);
+}
+
+static int write_clat_log(struct thread_data *td, int try)
+{
+	struct thread_options *o = &td->o;
+
+	return write_this_log(td, td->clat_log, o->lat_log_file, "clat" , try);
+}
+
+static int write_lat_log(struct thread_data *td, int try)
+{
+	struct thread_options *o = &td->o;
+
+	return write_this_log(td, td->lat_log, o->lat_log_file, "lat", try);
+}
+
+static int write_bandw_log(struct thread_data *td, int try)
+{
+	struct thread_options *o = &td->o;
+
+	return write_this_log(td, td->bw_log, o->bw_log_file, "bw", try);
+}
+
+enum {
+	BW_LOG_MASK	= 1,
+	LAT_LOG_MASK	= 2,
+	SLAT_LOG_MASK	= 4,
+	CLAT_LOG_MASK	= 8,
+	IOPS_LOG_MASK	= 16,
+
+	ALL_LOG_NR	= 5,
+};
+
+struct log_type {
+	unsigned int mask;
+	int (*fn)(struct thread_data *, int);
+};
+
+static struct log_type log_types[] = {
+	{
+		.mask	= BW_LOG_MASK,
+		.fn	= write_bandw_log,
+	},
+	{
+		.mask	= LAT_LOG_MASK,
+		.fn	= write_lat_log,
+	},
+	{
+		.mask	= SLAT_LOG_MASK,
+		.fn	= write_slat_log,
+	},
+	{
+		.mask	= CLAT_LOG_MASK,
+		.fn	= write_clat_log,
+	},
+	{
+		.mask	= IOPS_LOG_MASK,
+		.fn	= write_iops_log,
+	},
+};
+
+void fio_writeout_logs(struct thread_data *td)
+{
+	unsigned int log_mask = 0;
+	unsigned int log_left = ALL_LOG_NR;
+	int old_state, i;
+
+	old_state = td_bump_runstate(td, TD_FINISHING);
+
+	finalize_logs(td);
+
+	while (log_left) {
+		int prev_log_left = log_left;
+
+		for (i = 0; i < ALL_LOG_NR && log_left; i++) {
+			struct log_type *lt = &log_types[i];
+			int ret;
+
+			if (!(log_mask & lt->mask)) {
+				ret = lt->fn(td, log_left != 1);
+				if (!ret) {
+					log_left--;
+					log_mask |= lt->mask;
+				}
+			}
+		}
+
+		if (prev_log_left == log_left)
+			usleep(5000);
+	}
+
+	td_restore_runstate(td, old_state);
+}