reap_threads() terminates cpuio threads only when there is at least one real I/O thread that is exiting. > if (*nr_running == cputhreads && !pending && realthreads) > fio_terminate_threads(TERMINATE_ALL); Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@xxxxxxxxx> --- HOWTO | 3 ++- fio.1 | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/HOWTO b/HOWTO index 7f25bbc..cfcc81f 100644 --- a/HOWTO +++ b/HOWTO @@ -757,7 +757,8 @@ ioengine=str Defines how the job issues io to the file. The following 85% of the CPU. In case of SMP machines, use numjobs=<no_of_cpu> to get desired CPU usage, as the cpuload only loads a single - CPU at the desired rate. + CPU at the desired rate. A job never finishes + unless there is at least one non-cpuio job. guasi The GUASI IO engine is the Generic Userspace Asyncronous Syscall Interface approach diff --git a/fio.1 b/fio.1 index 739d950..cff95ee 100644 --- 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 -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
