X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=engines%2Fcpu.c;h=85598ef77fb9acd8d4868d6e15de1d9f64bee83f;hp=c798f1884e8dff8df9b079d87d61c8c4259ae10c;hb=046395d7ab181288d14737c1d0041e98328f473f;hpb=e65a950ab73d7d91f267ad7f7b084d94e266fcb0

diff --git a/engines/cpu.c b/engines/cpu.c
index c798f188..85598ef7 100644
--- a/engines/cpu.c
+++ b/engines/cpu.c
@@ -11,6 +11,7 @@ struct cpu_options {
 	struct thread_data *td;
 	unsigned int cpuload;
 	unsigned int cpucycle;
+	unsigned int exit_io_done;
 };
 
 static struct fio_option options[] = {
@@ -35,6 +36,16 @@ static struct fio_option options[] = {
 		.category = FIO_OPT_C_GENERAL,
 		.group	= FIO_OPT_G_INVALID,
 	},
+	{
+		.name	= "exit_on_io_done",
+		.lname	= "Exit when IO threads are done",
+		.type	= FIO_OPT_BOOL,
+		.off1	= offsetof(struct cpu_options, exit_io_done),
+		.help	= "Exit when IO threads finish",
+		.def	= "0",
+		.category = FIO_OPT_C_GENERAL,
+		.group	= FIO_OPT_G_INVALID,
+	},
 	{
 		.name	= NULL,
 	},
@@ -45,6 +56,11 @@ static int fio_cpuio_queue(struct thread_data *td, struct io_u fio_unused *io_u)
 {
 	struct cpu_options *co = td->eo;
 
+	if (co->exit_io_done && !fio_running_or_pending_io_threads()) {
+		td->done = 1;
+		return FIO_Q_BUSY;
+	}
+
 	usec_spin(co->cpucycle);
 	return FIO_Q_COMPLETED;
 }