X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=iolog.c;h=99f8bc18d8694cca0c141c51d116aced1b4130f2;hb=4eff3e579280ca5a5416ffb7fa106791aa23d6ef;hp=ef8b84145db0e14f808bdb53539184011b44975b;hpb=173375c210386387624779febf287ead301fda01;p=fio.git

diff --git a/iolog.c b/iolog.c
index ef8b8414..99f8bc18 100644
--- a/iolog.c
+++ b/iolog.c
@@ -28,7 +28,7 @@ void queue_io_piece(struct thread_data *td, struct io_piece *ipo)
 	td->total_io_size += ipo->len;
 }
 
-void log_io_u(struct thread_data *td, struct io_u *io_u)
+void log_io_u(const struct thread_data *td, const struct io_u *io_u)
 {
 	if (!td->o.write_iolog_file)
 		return;
@@ -60,14 +60,22 @@ 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;
+	uint64_t usec = utime_since_now(&td->last_issue);
+	uint64_t this_delay;
+	struct timeval tv;
 
+	if (delay < td->time_offset) {
+		td->time_offset = 0;
+		return;
+	}
+
+	delay -= td->time_offset;
 	if (delay < usec)
 		return;
 
 	delay -= usec;
 
+	fio_gettime(&tv, NULL);
 	while (delay && !td->terminate) {
 		this_delay = delay;
 		if (this_delay > 500000)
@@ -76,6 +84,12 @@ static void iolog_delay(struct thread_data *td, unsigned long delay)
 		usec_sleep(td, this_delay);
 		delay -= this_delay;
 	}
+
+	usec = utime_since_now(&tv);
+	if (usec > delay)
+		td->time_offset = usec - delay;
+	else
+		td->time_offset = 0;
 }
 
 static int ipo_special(struct thread_data *td, struct io_piece *ipo)
@@ -173,7 +187,7 @@ void prune_io_piece_log(struct thread_data *td)
 	}
 
 	while (!flist_empty(&td->io_hist_list)) {
-		ipo = flist_entry(&td->io_hist_list, struct io_piece, list);
+		ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
 		flist_del(&ipo->list);
 		remove_trim_entry(td, ipo);
 		td->io_hist_len--;
@@ -282,7 +296,7 @@ void unlog_io_piece(struct thread_data *td, struct io_u *io_u)
 	td->io_hist_len--;
 }
 
-void trim_io_piece(struct thread_data *td, struct io_u *io_u)
+void trim_io_piece(struct thread_data *td, const struct io_u *io_u)
 {
 	struct io_piece *ipo = io_u->ipo;
 
@@ -539,9 +553,9 @@ int init_iolog(struct thread_data *td)
 void setup_log(struct io_log **log, struct log_params *p,
 	       const char *filename)
 {
-	struct io_log *l = malloc(sizeof(*l));
+	struct io_log *l;
 
-	memset(l, 0, sizeof(*l));
+	l = calloc(1, sizeof(*l));
 	l->nr_samples = 0;
 	l->max_samples = 1024;
 	l->log_type = p->log_type;
@@ -871,18 +885,18 @@ int iolog_file_inflate(const char *file)
 	 */
 	total = ic.len;
 	do {
-		size_t ret;
+		size_t iret;
 
-		ret = inflate_chunk(&ic,  1, stdout, &stream, &iter);
-		total -= ret;
+		iret = inflate_chunk(&ic,  1, stdout, &stream, &iter);
+		total -= iret;
 		if (!total)
 			break;
 		if (iter.err)
 			break;
 
 		ic.seq++;
-		ic.len -= ret;
-		ic.buf += ret;
+		ic.len -= iret;
+		ic.buf += iret;
 	} while (1);
 
 	if (iter.seq) {