t/io_uring: fix bandwidth calculation

Fixes: 22fd35012cea ("t/io_uring: Reporting bandwidth")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/t/io_uring.c b/t/io_uring.c
index cf59fe37dee770285e0975d0949cc63e45d62ba5..1adb8789d199e7bc00511bff51cde18efa650e27 100644 (file)
--- a/t/io_uring.c
+++ b/t/io_uring.c
@@ -727,7 +727,7 @@ int main(int argc, char *argv[])
                unsigned long this_reap = 0;
                unsigned long this_call = 0;
                unsigned long rpc = 0, ipc = 0;
-               unsigned long iops;
+               unsigned long iops, bw;
 
                sleep(1);
                for (j = 0; j < nthreads; j++) {
@@ -742,8 +742,12 @@ int main(int argc, char *argv[])
                        rpc = ipc = -1;
                file_depths(fdepths);
                iops = this_done - done;
+               if (bs > 1048576)
+                       bw = iops * (bs / 1048576);
+               else
+                       bw = iops / (1048576 / bs);
                printf("IOPS=%lu, BW=%luMiB/s, IOS/call=%ld/%ld, inflight=(%s)\n",
-                               iops, iops * (1048576 / bs), rpc, ipc, fdepths);
+                               iops, bw, rpc, ipc, fdepths);
                done = this_done;
                calls = this_call;
                reap = this_reap;