[PATCH] Include io depth distribution statistics

[fio.git] / io_u.c

diff --git a/io_u.c b/io_u.c
index 7698e84581c3399eb771d9ecf1f5df472d688311..5e53b81443cda688bdb42163dc2a5af4cc28fe04 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -63,7 +63,7 @@ static int get_next_free_block(struct thread_data *td, struct fio_file *f,
 
        *b = 0;
        i = 0;
-       while ((*b) * td->rw_min_bs < f->file_size) {
+       while ((*b) * td->rw_min_bs < f->real_file_size) {
                if (f->file_map[i] != -1UL) {
                        *b += ffz(f->file_map[i]);
                        return 0;
@@ -88,7 +88,7 @@ static int get_next_offset(struct thread_data *td, struct fio_file *f,
        long r;
 
        if (!td->sequential) {
-               unsigned long long max_blocks = td->io_size / td->min_bs[ddir];
+               unsigned long long max_blocks = f->file_size / td->min_bs[ddir];
                int loops = 50;
 
                do {
@@ -108,7 +108,7 @@ static int get_next_offset(struct thread_data *td, struct fio_file *f,
                b = f->last_pos / td->min_bs[ddir];
 
        *offset = (b * td->min_bs[ddir]) + f->file_offset;
-       if (*offset > f->file_size)
+       if (*offset > f->real_file_size)
                return 1;
 
        return 0;
@@ -123,7 +123,7 @@ static unsigned int get_next_buflen(struct thread_data *td, int ddir)
                buflen = td->min_bs[ddir];
        else {
                r = os_random_long(&td->bsrange_state);
-               buflen = (1 + (double) (td->max_bs[ddir] - 1) * r / (RAND_MAX + 1.0));
+               buflen = (unsigned int) (1 + (double) (td->max_bs[ddir] - 1) * r / (RAND_MAX + 1.0));
                if (!td->bs_unaligned)
                        buflen = (buflen + td->min_bs[ddir] - 1) & ~(td->min_bs[ddir] - 1);
        }
@@ -147,13 +147,13 @@ static unsigned int get_next_buflen(struct thread_data *td, int ddir)
  * mixed read/write workload, check the rwmix cycle and switch if
  * necessary.
  */
-static int get_rw_ddir(struct thread_data *td)
+static enum fio_ddir get_rw_ddir(struct thread_data *td)
 {
        if (td_rw(td)) {
                struct timeval now;
                unsigned long elapsed;
 
-               gettimeofday(&now, NULL);
+               fio_gettime(&now, NULL);
                elapsed = mtime_since_now(&td->rwmix_switch);
 
                /*
@@ -227,6 +227,31 @@ static int fill_io_u(struct thread_data *td, struct fio_file *f,
        return 1;
 }
 
+static void io_u_mark_depth(struct thread_data *td)
+{
+       int index = 0;
+
+       switch (td->cur_depth) {
+       default:
+               index++;
+       case 32 ... 63:
+               index++;
+       case 16 ... 31:
+               index++;
+       case 8 ... 15:
+               index++;
+       case 4 ... 7:
+               index++;
+       case 2 ... 3:
+               index++;
+       case 1:
+               break;
+       }
+
+       td->io_u_map[index]++;
+       td->total_io_u++;
+}
+
 struct io_u *__get_io_u(struct thread_data *td)
 {
        struct io_u *io_u = NULL;
@@ -240,6 +265,7 @@ struct io_u *__get_io_u(struct thread_data *td)
                list_del(&io_u->list);
                list_add(&io_u->list, &td->io_u_busylist);
                td->cur_depth++;
+               io_u_mark_depth(td);
        }
 
        return io_u;
@@ -267,13 +293,13 @@ struct io_u *get_io_u(struct thread_data *td, struct fio_file *f)
                return NULL;
        }
 
-       if (io_u->buflen + io_u->offset > f->file_size) {
+       if (io_u->buflen + io_u->offset > f->real_file_size) {
                if (td->io_ops->flags & FIO_RAWIO) {
                        put_io_u(td, io_u);
                        return NULL;
                }
 
-               io_u->buflen = f->file_size - io_u->offset;
+               io_u->buflen = f->real_file_size - io_u->offset;
        }
 
        if (io_u->ddir != DDIR_SYNC) {
@@ -296,14 +322,13 @@ struct io_u *get_io_u(struct thread_data *td, struct fio_file *f)
                return NULL;
        }
 
-       gettimeofday(&io_u->start_time, NULL);
+       fio_gettime(&io_u->start_time, NULL);
        return io_u;
 }
 
 void io_completed(struct thread_data *td, struct io_u *io_u,
                  struct io_completion_data *icd)
 {
-       struct timeval e;
        unsigned long msec;
 
        if (io_u->ddir == DDIR_SYNC) {
@@ -313,21 +338,21 @@ void io_completed(struct thread_data *td, struct io_u *io_u,
 
        td->last_was_sync = 0;
 
-       gettimeofday(&e, NULL);
-
        if (!io_u->error) {
                unsigned int bytes = io_u->buflen - io_u->resid;
-               const int idx = io_u->ddir;
+               const enum fio_ddir idx = io_u->ddir;
 
                td->io_blocks[idx]++;
                td->io_bytes[idx] += bytes;
                td->zone_bytes += bytes;
                td->this_io_bytes[idx] += bytes;
 
-               msec = mtime_since(&io_u->issue_time, &e);
+               io_u->file->last_completed_pos = io_u->offset + io_u->buflen;
+
+               msec = mtime_since(&io_u->issue_time, &icd->time);
 
                add_clat_sample(td, idx, msec);
-               add_bw_sample(td, idx);
+               add_bw_sample(td, idx, &icd->time);
 
                if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE)
                        log_io_piece(td, io_u);
@@ -342,6 +367,8 @@ void ios_completed(struct thread_data *td, struct io_completion_data *icd)
        struct io_u *io_u;
        int i;
 
+       fio_gettime(&icd->time, NULL);
+
        icd->error = 0;
        icd->bytes_done[0] = icd->bytes_done[1] = 0;