[PATCH] Add support for writing aggregate bandwidth log
This is the same that is shown while fio is running, it can be useful
for graphing purposes as well.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/eta.c b/eta.c
index 3ffb111..feda8d0 100644
--- a/eta.c
+++ b/eta.c
@@ -180,7 +180,7 @@
static struct timeval prev_time;
static unsigned int r_rate, w_rate;
unsigned long long io_bytes[2];
- unsigned long mtime;
+ unsigned long mtime, bw_avg_time;
if (temp_stall_ts || terse_output)
return;
@@ -193,7 +193,10 @@
io_bytes[0] = io_bytes[1] = 0;
nr_pending = nr_running = t_rate = m_rate = 0;
+ bw_avg_time = ULONG_MAX;
for_each_td(td, i) {
+ if (td->bw_avg_time < bw_avg_time)
+ bw_avg_time = td->bw_avg_time;
if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING||
td->runstate == TD_FSYNCING) {
nr_running++;
@@ -235,10 +238,12 @@
}
mtime = mtime_since_now(&prev_time);
- if (mtime > 1000) {
+ if (mtime > bw_avg_time) {
r_rate = (io_bytes[0] - prev_io_bytes[0]) / mtime;
w_rate = (io_bytes[1] - prev_io_bytes[1]) / mtime;
fio_gettime(&prev_time, NULL);
+ add_agg_sample(r_rate, DDIR_READ);
+ add_agg_sample(w_rate, DDIR_WRITE);
memcpy(prev_io_bytes, io_bytes, sizeof(io_bytes));
}