For non-file engines, set ->real_file_size if total size is known

[fio.git] / engines / cpu.c

diff --git a/engines/cpu.c b/engines/cpu.c
index b6f9075d365be76fe944a33101cf6eff3b195b88..dd69cedeaff7ee438fb284198dc2b91ad5f2b785 100644 (file)
--- a/engines/cpu.c
+++ b/engines/cpu.c
@@ -1,9 +1,15 @@
+/*
+ * CPU engine
+ *
+ * Doesn't transfer any data, merely burns CPU cycles according to
+ * the settings.
+ *
+ */
 #include "../fio.h"
-#include "../os.h"
 
 static int fio_cpuio_queue(struct thread_data *td, struct io_u fio_unused *io_u)
 {
-       __usec_sleep(td->cpucycle);
+       __usec_sleep(td->o.cpucycle);
        return FIO_Q_COMPLETED;
 }
 
@@ -12,13 +18,11 @@ static int fio_cpuio_setup(struct thread_data fio_unused *td)
        struct fio_file *f;
        unsigned int i;
 
-       td->total_file_size = -1;
-       td->io_size = td->total_file_size;
-       td->total_io_size = td->io_size;
-
        for_each_file(td, f, i) {
-               f->real_file_size = -1;
-               f->file_size = -1;
+               if (td->o.size)
+                       f->real_file_size = td->o.size / td->o.nr_files;
+               else
+                       f->real_file_size = -1ULL;
        }
 
        return 0;
@@ -26,28 +30,30 @@ static int fio_cpuio_setup(struct thread_data fio_unused *td)
 
 static int fio_cpuio_init(struct thread_data *td)
 {
-       if (!td->cpuload) {
+       struct thread_options *o = &td->o;
+
+       if (!o->cpuload) {
                td_vmsg(td, EINVAL, "cpu thread needs rate (cpuload=)","cpuio");
                return 1;
        }
 
-       if (td->cpuload > 100)
-               td->cpuload = 100;
+       if (o->cpuload > 100)
+               o->cpuload = 100;
 
        /*
         * set thinktime_sleep and thinktime_spin appropriately
         */
-       td->thinktime_blocks = 1;
-       td->thinktime_spin = 0;
-       td->thinktime = (td->cpucycle * (100 - td->cpuload)) / td->cpuload;
+       o->thinktime_blocks = 1;
+       o->thinktime_spin = 0;
+       o->thinktime = (o->cpucycle * (100 - o->cpuload)) / o->cpuload;
 
-       td->nr_files = td->open_files = 1;
+       o->nr_files = o->open_files = 1;
        return 0;
 }
 
-static int fio_cpuio_open(struct thread_data fio_unused *td, struct fio_file *f)
+static int fio_cpuio_open(struct thread_data fio_unused *td,
+                         struct fio_file fio_unused *f)
 {
-       f->fd = 0;
        return 0;
 }