Don't compute iops samples for gtod_reduce=1

Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/io_u.c b/io_u.c
index acc1a7b1dcb9f4ab6ac2c56a1552247c905ab41e..5f39987ab4e9e781ad9ae8acd7d9ae98bfca680c 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -1521,13 +1521,19 @@ void io_u_log_error(struct thread_data *td, struct io_u *io_u)
                td_verror(td, io_u->error, "io_u error");
 }
 
+static inline int gtod_reduce(struct thread_data *td)
+{
+       return !td->o.disable_clat || !td->o.disable_lat ||
+               !td->o.disable_slat || !td->o.disable_bw;
+}
+
 static void account_io_completion(struct thread_data *td, struct io_u *io_u,
                                  struct io_completion_data *icd,
                                  const enum fio_ddir idx, unsigned int bytes)
 {
        unsigned long lusec = 0;
 
-       if (!td->o.disable_clat || !td->o.disable_bw)
+       if (!gtod_reduce(td))
                lusec = utime_since(&io_u->issue_time, &icd->time);
 
        if (!td->o.disable_lat) {
@@ -1559,7 +1565,8 @@ static void account_io_completion(struct thread_data *td, struct io_u *io_u,
        if (!td->o.disable_bw)
                add_bw_sample(td, idx, bytes, &icd->time);
 
-       add_iops_sample(td, idx, bytes, &icd->time);
+       if (!gtod_reduce(td))
+               add_iops_sample(td, idx, bytes, &icd->time);
 
        if (td->o.number_ios && !--td->o.number_ios)
                td->done = 1;
@@ -1680,7 +1687,8 @@ static void init_icd(struct thread_data *td, struct io_completion_data *icd,
                     int nr)
 {
        int ddir;
-       if (!td->o.disable_clat || !td->o.disable_bw)
+
+       if (!gtod_reduce(td))
                fio_gettime(&icd->time, NULL);
 
        icd->nr = nr;