X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=backend.c;h=b4a09acae5ab0e2ccc2515a5b1251342f1dc34d9;hp=5304ddc0ae1df0245405d2f6136c1b45755473d2;hb=9f75af77ea4b13cd44e5246426dbdbceff22f27c;hpb=1aa39b0ce447f228460e6d0af601fee88fd5f4b4

diff --git a/backend.c b/backend.c
index 5304ddc0..b4a09aca 100644
--- a/backend.c
+++ b/backend.c
@@ -898,8 +898,17 @@ static void handle_thinktime(struct thread_data *td, enum fio_ddir ddir)
 	 * start issuing immediately after the sleep.
 	 */
 	if (total && td->rate_bps[ddir] && td->o.rate_ign_think) {
-		td->rate_io_issue_bytes[ddir] += (td->rate_bps[ddir] * 1000000) / total;
-		td->rate_io_issue_bytes[ddir] -= td->o.min_bs[ddir];
+		uint64_t missed = (td->rate_bps[ddir] * total) / 1000000ULL;
+		uint64_t bs = td->o.min_bs[ddir];
+		uint64_t usperop = bs * 1000000ULL / td->rate_bps[ddir];
+		uint64_t over;
+
+		if (usperop <= total)
+			over = bs;
+		else
+			over = (usperop - total) / usperop * -bs;
+
+		td->rate_io_issue_bytes[ddir] += (missed - over);
 	}
 }