Add cpus_allowed option

[fio.git] / options.c

diff --git a/options.c b/options.c
index 754eb81fccfe1a14f6949f30d07475ea09acc834..db3279e13a0dba66293e36610b3f54621efdf792 100644 (file)
--- a/options.c
+++ b/options.c
@@ -64,6 +64,13 @@ static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
 static int str_prioclass_cb(void *data, unsigned int *val)
 {
        struct thread_data *td = data;
+       unsigned short mask;
+
+       /*
+        * mask off old class bits, str_prio_cb() may have set a default class
+        */
+       mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
+       td->ioprio &= mask;
 
        td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
        return 0;
@@ -74,6 +81,13 @@ static int str_prio_cb(void *data, unsigned int *val)
        struct thread_data *td = data;
 
        td->ioprio |= *val;
+
+       /*
+        * If no class is set, assume BE
+        */
+       if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
+               td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
+
        return 0;
 }
 #endif
@@ -84,27 +98,46 @@ static int str_exitall_cb(void)
        return 0;
 }
 
-static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
-{
 #ifdef FIO_HAVE_CPU_AFFINITY
+static int str_cpumask_cb(void *data, unsigned int *val)
+{
+       struct thread_data *td = data;
        unsigned int i;
 
-       CPU_ZERO(&cpumask);
+       CPU_ZERO(&td->o.cpumask);
 
-       for (i = 0; i < sizeof(int) * 8; i++) {
-               if ((1 << i) & cpu)
-                       CPU_SET(i, &cpumask);
-       }
-#endif
+       for (i = 0; i < sizeof(int) * 8; i++)
+               if ((1 << i) & *val)
+                       CPU_SET(*val, &td->o.cpumask);
+
+       td->o.cpumask_set = 1;
+       return 0;
 }
 
-static int str_cpumask_cb(void *data, unsigned int *val)
+static int str_cpus_allowed_cb(void *data, const char *input)
 {
        struct thread_data *td = data;
+       char *cpu, *str, *p;
+
+       CPU_ZERO(&td->o.cpumask);
+
+       p = str = strdup(input);
+
+       strip_blank_front(&str);
+       strip_blank_end(str);
 
-       fill_cpu_mask(td->o.cpumask, *val);
+       while ((cpu = strsep(&str, ",")) != NULL) {
+               if (!strlen(cpu))
+                       break;
+               CPU_SET(atoi(cpu), &td->o.cpumask);
+       }
+
+       free(p);
+       td->o.cpumask_set = 1;
+       exit(0);
        return 0;
 }
+#endif
 
 static int str_fst_cb(void *data, const char *str)
 {
@@ -477,6 +510,12 @@ static struct fio_option options[] = {
                .help   = "Stop workload when this amount of time has passed",
                .def    = "0",
        },
+       {
+               .name   = "time_based",
+               .type   = FIO_OPT_STR_SET,
+               .off1   = td_var_offset(time_based),
+               .help   = "Keep running until runtime/timeout is met",
+       },
        {
                .name   = "mem",
                .alias  = "iomem",
@@ -755,6 +794,12 @@ static struct fio_option options[] = {
                .cb     = str_cpumask_cb,
                .help   = "CPU affinity mask",
        },
+       {
+               .name   = "cpus_allowed",
+               .type   = FIO_OPT_STR,
+               .cb     = str_cpus_allowed_cb,
+               .help   = "Set CPUs allowed",
+       },
 #endif
        {
                .name   = "end_fsync",
@@ -832,6 +877,15 @@ static struct fio_option options[] = {
                .off1   = td_var_offset(zero_buffers),
                .help   = "Init IO buffers to all zeroes",
        },
+#ifdef FIO_HAVE_DISK_UTIL
+       {
+               .name   = "disk_util",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(do_disk_util),
+               .help   = "Log disk utilization stats",
+               .def    = "1",
+       },
+#endif
        {
                .name = NULL,
        },