Mention cpuio never finishes without real I/O in documentation

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 0461d90e1f8ba6077fe38507021662f17c5f87ba..a9abe3fcec4e6a87cce2c425800d3e894d02ddb1 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -656,7 +656,8 @@ and send/receive. This ioengine defines engine specific options.
 .TP
 .B cpuio
 Doesn't transfer any data, but burns CPU cycles according to \fBcpuload\fR and
-\fBcpuchunks\fR parameters.
+\fBcpuchunks\fR parameters. A job never finishes unless there is at least one
+non-cpuio job.
 .TP
 .B guasi
 The GUASI I/O engine is the Generic Userspace Asynchronous Syscall Interface