On 2020/07/15 15:41, Shin'ichiro Kawasaki wrote:
> From: Hans Holmberg <hans.holmberg@xxxxxxx>
>
> To test zone capacity handling by fio using regular block devices, add
> zonecapacity option for zonemode=zbd. It allows to specify zone capacity
> common to all zones.
Please better describe the option:
This new option allows specifying a zone capacity smaller than the zone size.
Similarly to the zonesize option, the zonecapacity defined value applies to all
emulated zones of the device.
>
> Signed-off-by: Hans Holmberg <hans.holmberg@xxxxxxx>
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
> ---
> HOWTO | 18 +++++++++++++++---
> cconv.c | 2 ++
> fio.1 | 13 +++++++++++--
> options.c | 11 +++++++++++
> thread_options.h | 2 ++
> zbd.c | 13 ++++++++++++-
> 6 files changed, 53 insertions(+), 6 deletions(-)
>
> diff --git a/HOWTO b/HOWTO
> index 8cf8d650..35ead0cb 100644
> --- a/HOWTO
> +++ b/HOWTO
> @@ -970,14 +970,15 @@ Target file/device
> Accepted values are:
>
> **none**
> - The :option:`zonerange`, :option:`zonesize` and
> - :option:`zoneskip` parameters are ignored.
> + The :option:`zonerange`, :option:`zonesize`,
> + :option `zonecapacity` and option:`zoneskip`
> + parameters are ignored.
> **strided**
> I/O happens in a single zone until
> :option:`zonesize` bytes have been transferred.
> After that number of bytes has been
> transferred processing of the next zone
> - starts.
> + starts. :option `zonecapacity` is ignored.
> **zbd**
> Zoned block device mode. I/O happens
> sequentially in each zone, even if random I/O
> @@ -1004,6 +1005,17 @@ Target file/device
> For :option:`zonemode` =zbd, this is the size of a single zone. The
> :option:`zonerange` parameter is ignored in this mode.
>
> +
> +.. option:: zonecapacity=int
> +
> + For :option:`zonemode` =zbd, this defines the capacity of a single zone,
> + which is the accessible area starting from the zone start address.
> + This parameter only applies when using :option:`zonemode` =zbd in
> + combination with regular block devices. If not specified it defaults to
> + the zone size. If the target device is a zoned block device, the zone
> + capacity is obtained from the device information and this option is
> + ignored.
> +
> .. option:: zoneskip=int
>
> For :option:`zonemode` =strided, the number of bytes to skip after
> diff --git a/cconv.c b/cconv.c
> index 449bcf7b..2469389b 100644
> --- a/cconv.c
> +++ b/cconv.c
> @@ -223,6 +223,7 @@ void convert_thread_options_to_cpu(struct thread_options *o,
> o->ss_limit.u.f = fio_uint64_to_double(le64_to_cpu(top->ss_limit.u.i));
> o->zone_range = le64_to_cpu(top->zone_range);
> o->zone_size = le64_to_cpu(top->zone_size);
> + o->zone_capacity = le64_to_cpu(top->zone_capacity);
> o->zone_skip = le64_to_cpu(top->zone_skip);
> o->zone_mode = le32_to_cpu(top->zone_mode);
> o->lockmem = le64_to_cpu(top->lockmem);
> @@ -563,6 +564,7 @@ void convert_thread_options_to_net(struct thread_options_pack *top,
> top->ss_limit.u.i = __cpu_to_le64(fio_double_to_uint64(o->ss_limit.u.f));
> top->zone_range = __cpu_to_le64(o->zone_range);
> top->zone_size = __cpu_to_le64(o->zone_size);
> + top->zone_capacity = __cpu_to_le64(o->zone_capacity);
> top->zone_skip = __cpu_to_le64(o->zone_skip);
> top->zone_mode = __cpu_to_le32(o->zone_mode);
> top->lockmem = __cpu_to_le64(o->lockmem);
> diff --git a/fio.1 b/fio.1
> index f134e0bf..68aeb21f 100644
> --- a/fio.1
> +++ b/fio.1
> @@ -738,12 +738,13 @@ Accepted values are:
> .RS
> .TP
> .B none
> -The \fBzonerange\fR, \fBzonesize\fR and \fBzoneskip\fR parameters are ignored.
> +The \fBzonerange\fR, \fBzonesize\fR \fBzonecapacity and \fBzoneskip\fR
Missing \fR after \fBzonecapacity.
> +parameters are ignored.
> .TP
> .B strided
> I/O happens in a single zone until \fBzonesize\fR bytes have been transferred.
> After that number of bytes has been transferred processing of the next zone
> -starts.
> +starts. The \fBzonecapacity parameter is ignored.
Same here too.
> .TP
> .B zbd
> Zoned block device mode. I/O happens sequentially in each zone, even if random
> @@ -771,6 +772,14 @@ zoned block device, the specified \fBzonesize\fR must be 0 or equal to the
> device zone size. For a regular block device or file, the specified
> \fBzonesize\fR must be at least 512B.
> .TP
> +.BI zonecapacity \fR=\fPint
> +For \fBzonemode\fR=zbd, this defines the capacity of a single zone, which is
> +the accessible area starting from the zone start address. This parameter only
> +applies when using \fBzonemode\fR=zbd in combination with regular block devices.
> +If not specified it defaults to the zone size. If the target device is a zoned
> +block device, the zone capacity is obtained from the device information and this
> +option is ignored.
> +.TP
> .BI zoneskip \fR=\fPint
> For \fBzonemode\fR=strided, the number of bytes to skip after \fBzonesize\fR
> bytes of data have been transferred.
> diff --git a/options.c b/options.c
> index 85a0f490..251ad2c1 100644
> --- a/options.c
> +++ b/options.c
> @@ -3327,6 +3327,17 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
> .category = FIO_OPT_C_IO,
> .group = FIO_OPT_G_ZONE,
> },
> + {
> + .name = "zonecapacity",
> + .lname = "Zone capacity",
> + .type = FIO_OPT_STR_VAL,
> + .off1 = offsetof(struct thread_options, zone_capacity),
> + .help = "Capacity per zone",
> + .def = "0",
> + .interval = 1024 * 1024,
> + .category = FIO_OPT_C_IO,
> + .group = FIO_OPT_G_ZONE,
> + },
> {
> .name = "zonerange",
> .lname = "Zone range",
> diff --git a/thread_options.h b/thread_options.h
> index 968ea0ab..3fe48ecc 100644
> --- a/thread_options.h
> +++ b/thread_options.h
> @@ -193,6 +193,7 @@ struct thread_options {
> unsigned int loops;
> unsigned long long zone_range;
> unsigned long long zone_size;
> + unsigned long long zone_capacity;
> unsigned long long zone_skip;
> enum fio_zone_mode zone_mode;
> unsigned long long lockmem;
> @@ -487,6 +488,7 @@ struct thread_options_pack {
> uint32_t loops;
> uint64_t zone_range;
> uint64_t zone_size;
> + uint64_t zone_capacity;
> uint64_t zone_skip;
> uint64_t lockmem;
> uint32_t mem_type;
> diff --git a/zbd.c b/zbd.c
> index c738a58b..85478aa5 100644
> --- a/zbd.c
> +++ b/zbd.c
> @@ -371,6 +371,7 @@ static int init_zone_info(struct thread_data *td, struct fio_file *f)
> uint32_t nr_zones;
> struct fio_zone_info *p;
> uint64_t zone_size = td->o.zone_size;
> + uint64_t zone_capacity = td->o.zone_capacity;
> struct zoned_block_device_info *zbd_info = NULL;
> int i;
>
> @@ -386,6 +387,16 @@ static int init_zone_info(struct thread_data *td, struct fio_file *f)
> return 1;
> }
>
> + if (zone_capacity == 0)
> + zone_capacity = zone_size;
> +
> + if (zone_capacity > zone_size) {
> + log_err("%s: job parameter zonecapacity %llu is larger than zone size %llu\n",
> + f->file_name, (unsigned long long) td->o.zone_capacity,
> + (unsigned long long) td->o.zone_size);
> + return 1;
> + }
> +
> nr_zones = (f->real_file_size + zone_size - 1) / zone_size;
> zbd_info = scalloc(1, sizeof(*zbd_info) +
> (nr_zones + 1) * sizeof(zbd_info->zone_info[0]));
> @@ -402,7 +413,7 @@ static int init_zone_info(struct thread_data *td, struct fio_file *f)
> p->wp = p->start;
> p->type = ZBD_ZONE_TYPE_SWR;
> p->cond = ZBD_ZONE_COND_EMPTY;
> - p->capacity = zone_size;
> + p->capacity = zone_capacity;
> }
> /* a sentinel */
> p->start = nr_zones * zone_size;
>
--
Damien Le Moal
Western Digital Research
