X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=blktrace.c;h=3c66c5afb971723518f95608f81bcb3083a70dcc;hp=2d4dc1b9fbca3724e47c7285e7fcdab277b82bc3;hb=38f68906332ef55f239418fc9e7af225e2f69063;hpb=26e616d054f238bf6b7ada351e17b72fdfbbb8e0

diff --git a/blktrace.c b/blktrace.c
index 2d4dc1b9..3c66c5af 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -3,15 +3,14 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
-#include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <linux/fs.h>
-#include <dirent.h>
 
 #include "flist.h"
 #include "fio.h"
+#include "blktrace.h"
 #include "blktrace_api.h"
-#include "lib/linux-dev-lookup.h"
+#include "oslib/linux-dev-lookup.h"
 
 #define TRACE_FIFO_SIZE	8192
 
@@ -208,6 +207,14 @@ out:
 	return last_fileno;
 }
 
+static void t_bytes_align(struct thread_options *o, struct blk_io_trace *t)
+{
+	if (!o->replay_align)
+		return;
+
+	t->bytes = (t->bytes + o->replay_align - 1) & ~(o->replay_align - 1);
+}
+
 /*
  * Store blk_io_trace data in an ipo for later retrieval.
  */
@@ -215,11 +222,15 @@ static void store_ipo(struct thread_data *td, unsigned long long offset,
 		      unsigned int bytes, int rw, unsigned long long ttime,
 		      int fileno, unsigned int bs)
 {
-	struct io_piece *ipo = malloc(sizeof(*ipo));
+	struct io_piece *ipo;
 
+	ipo = calloc(1, sizeof(*ipo));
 	init_ipo(ipo);
 
 	ipo->offset = offset * bs;
+	if (td->o.replay_scale)
+		ipo->offset = ipo->offset / td->o.replay_scale;
+	ipo_bytes_align(td->o.replay_align, ipo);
 	ipo->len = bytes;
 	ipo->delay = ttime / 1000;
 	if (rw)
@@ -258,10 +269,14 @@ static void handle_trace_discard(struct thread_data *td,
 				 unsigned long long ttime,
 				 unsigned long *ios, unsigned int *rw_bs)
 {
-	struct io_piece *ipo = malloc(sizeof(*ipo));
+	struct io_piece *ipo;
 	unsigned int bs;
 	int fileno;
 
+	if (td->o.replay_skip & (1u << DDIR_TRIM))
+		return;
+
+	ipo = calloc(1, sizeof(*ipo));
 	init_ipo(ipo);
 	fileno = trace_add_file(td, t->device, &bs);
 
@@ -271,10 +286,12 @@ static void handle_trace_discard(struct thread_data *td,
 
 	td->o.size += t->bytes;
 
-	memset(ipo, 0, sizeof(*ipo));
 	INIT_FLIST_HEAD(&ipo->list);
 
 	ipo->offset = t->sector * bs;
+	if (td->o.replay_scale)
+		ipo->offset = ipo->offset / td->o.replay_scale;
+	ipo_bytes_align(td->o.replay_align, ipo);
 	ipo->len = t->bytes;
 	ipo->delay = ttime / 1000;
 	ipo->ddir = DDIR_TRIM;
@@ -298,6 +315,16 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
 
 	rw = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0;
 
+	if (rw) {
+		if (td->o.replay_skip & (1u << DDIR_WRITE))
+			return;
+	} else {
+		if (td->o.replay_skip & (1u << DDIR_READ))
+			return;
+	}
+
+	assert(t->bytes);
+
 	if (t->bytes > rw_bs[rw])
 		rw_bs[rw] = t->bytes;
 
@@ -306,6 +333,28 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
 	store_ipo(td, t->sector, t->bytes, rw, ttime, fileno, bs);
 }
 
+static void handle_trace_flush(struct thread_data *td, struct blk_io_trace *t,
+			       unsigned long long ttime)
+{
+	struct io_piece *ipo;
+	unsigned int bs;
+	int fileno;
+
+	if (td->o.replay_skip & (1u << DDIR_SYNC))
+		return;
+
+	ipo = calloc(1, sizeof(*ipo));
+	init_ipo(ipo);
+	fileno = trace_add_file(td, t->device, &bs);
+
+	ipo->delay = ttime / 1000;
+	ipo->ddir = DDIR_SYNC;
+	ipo->fileno = fileno;
+
+	dprint(FD_BLKTRACE, "store flush delay=%lu\n", ipo->delay);
+	queue_io_piece(td, ipo);
+}
+
 /*
  * We only care for queue traces, most of the others are side effects
  * due to internal workings of the block layer.
@@ -314,25 +363,35 @@ static void handle_trace(struct thread_data *td, struct blk_io_trace *t,
 			 unsigned long *ios, unsigned int *bs)
 {
 	static unsigned long long last_ttime;
-	unsigned long long delay;
+	unsigned long long delay = 0;
 
 	if ((t->action & 0xffff) != __BLK_TA_QUEUE)
 		return;
 
 	if (!(t->action & BLK_TC_ACT(BLK_TC_NOTIFY))) {
-		if (!last_ttime || td->o.no_stall) {
-			last_ttime = t->time;
+		if (!last_ttime || td->o.no_stall)
 			delay = 0;
-		} else {
+		else if (td->o.replay_time_scale == 100)
 			delay = t->time - last_ttime;
-			last_ttime = t->time;
+		else {
+			double tmp = t->time - last_ttime;
+			double scale;
+
+			scale = (double) 100.0 / (double) td->o.replay_time_scale;
+			tmp *= scale;
+			delay = tmp;
 		}
+		last_ttime = t->time;
 	}
 
+	t_bytes_align(&td->o, t);
+
 	if (t->action & BLK_TC_ACT(BLK_TC_NOTIFY))
 		handle_trace_notify(t);
 	else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD))
 		handle_trace_discard(td, t, delay, ios, bs);
+	else if (t->action & BLK_TC_ACT(BLK_TC_FLUSH))
+		handle_trace_flush(td, t, delay);
 	else
 		handle_trace_fs(td, t, delay, ios, bs);
 }
@@ -483,10 +542,8 @@ int load_blktrace(struct thread_data *td, const char *filename, int need_swap)
 		handle_trace(td, &t, ios, rw_bs);
 	} while (1);
 
-	for (i = 0; i < td->files_index; i++) {
-		f = td->files[i];
+	for_each_file(td, f, i)
 		trace_add_open_close_event(td, f->fileno, FIO_LOG_CLOSE_FILE);
-	}
 
 	fifo_free(fifo);
 	close(fd);