block: optimize zero writes with bdrv_write_zeroes
this patch tries to optimize zero write requests by automatically using bdrv_write_zeroes if it is supported by the format. This significantly speeds up file system initialization and should speed zero write test used to test backend storage performance. I ran the following 2 tests on my internal SSD with a 50G QCOW2 container and on an attached iSCSI storage. a) mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/vdX QCOW2 [off] [on] [unmap] ----- runtime: 14secs 1.1secs 1.1secs filesize: 937M 18M 18M iSCSI [off] [on] [unmap] ---- runtime: 9.3s 0.9s 0.9s b) dd if=/dev/zero of=/dev/vdX bs=1M oflag=direct QCOW2 [off] [on] [unmap] ----- runtime: 246secs 18secs 18secs filesize: 51G 192K 192K throughput: 203M/s 2.3G/s 2.3G/s iSCSI* [off] [on] [unmap] ---- runtime: 8mins 45secs 33secs throughput: 106M/s 1.2G/s 1.6G/s allocated: 100% 100% 0% * The storage was connected via an 1Gbit interface. It seems to internally handle writing zeroes via WRITESAME16 very fast. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Peter Lieven
Kevin Wolf
parent
82a402e99f
commit
465bee1da8
9
block.c
9
block.c
@ -3289,6 +3289,15 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs,
|
||||
|
||||
ret = notifier_with_return_list_notify(&bs->before_write_notifiers, req);
|
||||
|
||||
if (!ret && bs->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF &&
|
||||
!(flags & BDRV_REQ_ZERO_WRITE) && drv->bdrv_co_write_zeroes &&
|
||||
qemu_iovec_is_zero(qiov)) {
|
||||
flags |= BDRV_REQ_ZERO_WRITE;
|
||||
if (bs->detect_zeroes == BLOCKDEV_DETECT_ZEROES_OPTIONS_UNMAP) {
|
||||
flags |= BDRV_REQ_MAY_UNMAP;
|
||||
}
|
||||
}
|
||||
|
||||
if (ret < 0) {
|
||||
/* Do nothing, write notifier decided to fail this request */
|
||||
} else if (flags & BDRV_REQ_ZERO_WRITE) {
|
||||
|
||||
@ -50,6 +50,7 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs)
|
||||
}
|
||||
|
||||
info->backing_file_depth = bdrv_get_backing_file_depth(bs);
|
||||
info->detect_zeroes = bs->detect_zeroes;
|
||||
|
||||
if (bs->io_limits_enabled) {
|
||||
ThrottleConfig cfg;
|
||||
|
||||
24
blockdev.c
24
blockdev.c
@ -343,6 +343,7 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
|
||||
QemuOpts *opts;
|
||||
const char *id;
|
||||
bool has_driver_specific_opts;
|
||||
BlockdevDetectZeroesOptions detect_zeroes;
|
||||
BlockDriver *drv = NULL;
|
||||
|
||||
/* Check common options by copying from bs_opts to opts, all other options
|
||||
@ -471,6 +472,24 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
|
||||
}
|
||||
}
|
||||
|
||||
detect_zeroes =
|
||||
parse_enum_option(BlockdevDetectZeroesOptions_lookup,
|
||||
qemu_opt_get(opts, "detect-zeroes"),
|
||||
BLOCKDEV_DETECT_ZEROES_OPTIONS_MAX,
|
||||
BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF,
|
||||
&error);
|
||||
if (error) {
|
||||
error_propagate(errp, error);
|
||||
goto early_err;
|
||||
}
|
||||
|
||||
if (detect_zeroes == BLOCKDEV_DETECT_ZEROES_OPTIONS_UNMAP &&
|
||||
!(bdrv_flags & BDRV_O_UNMAP)) {
|
||||
error_setg(errp, "setting detect-zeroes to unmap is not allowed "
|
||||
"without setting discard operation to unmap");
|
||||
goto early_err;
|
||||
}
|
||||
|
||||
/* init */
|
||||
dinfo = g_malloc0(sizeof(*dinfo));
|
||||
dinfo->id = g_strdup(qemu_opts_id(opts));
|
||||
@ -481,6 +500,7 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
|
||||
}
|
||||
dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
|
||||
dinfo->bdrv->read_only = ro;
|
||||
dinfo->bdrv->detect_zeroes = detect_zeroes;
|
||||
dinfo->refcount = 1;
|
||||
if (serial != NULL) {
|
||||
dinfo->serial = g_strdup(serial);
|
||||
@ -2474,6 +2494,10 @@ QemuOptsList qemu_common_drive_opts = {
|
||||
.name = "copy-on-read",
|
||||
.type = QEMU_OPT_BOOL,
|
||||
.help = "copy read data from backing file into image file",
|
||||
},{
|
||||
.name = "detect-zeroes",
|
||||
.type = QEMU_OPT_STRING,
|
||||
.help = "try to optimize zero writes (off, on, unmap)",
|
||||
},
|
||||
{ /* end of list */ }
|
||||
},
|
||||
|
||||
5
hmp.c
5
hmp.c
@ -341,6 +341,11 @@ void hmp_info_block(Monitor *mon, const QDict *qdict)
|
||||
info->value->inserted->backing_file_depth);
|
||||
}
|
||||
|
||||
if (info->value->inserted->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF) {
|
||||
monitor_printf(mon, " Detect zeroes: %s\n",
|
||||
BlockdevDetectZeroesOptions_lookup[info->value->inserted->detect_zeroes]);
|
||||
}
|
||||
|
||||
if (info->value->inserted->bps
|
||||
|| info->value->inserted->bps_rd
|
||||
|| info->value->inserted->bps_wr
|
||||
|
||||
@ -364,6 +364,7 @@ struct BlockDriverState {
|
||||
BlockJob *job;
|
||||
|
||||
QDict *options;
|
||||
BlockdevDetectZeroesOptions detect_zeroes;
|
||||
};
|
||||
|
||||
int get_tmp_filename(char *filename, int size);
|
||||
|
||||
@ -942,6 +942,8 @@
|
||||
# @encryption_key_missing: true if the backing device is encrypted but an
|
||||
# valid encryption key is missing
|
||||
#
|
||||
# @detect_zeroes: detect and optimize zero writes (Since 2.1)
|
||||
#
|
||||
# @bps: total throughput limit in bytes per second is specified
|
||||
#
|
||||
# @bps_rd: read throughput limit in bytes per second is specified
|
||||
@ -977,6 +979,7 @@
|
||||
'data': { 'file': 'str', '*node-name': 'str', 'ro': 'bool', 'drv': 'str',
|
||||
'*backing_file': 'str', 'backing_file_depth': 'int',
|
||||
'encrypted': 'bool', 'encryption_key_missing': 'bool',
|
||||
'detect_zeroes': 'BlockdevDetectZeroesOptions',
|
||||
'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
|
||||
'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
|
||||
'image': 'ImageInfo',
|
||||
@ -4254,6 +4257,22 @@
|
||||
{ 'enum': 'BlockdevDiscardOptions',
|
||||
'data': [ 'ignore', 'unmap' ] }
|
||||
|
||||
##
|
||||
# @BlockdevDetectZeroesOptions
|
||||
#
|
||||
# Describes the operation mode for the automatic conversion of plain
|
||||
# zero writes by the OS to driver specific optimized zero write commands.
|
||||
#
|
||||
# @off: Disabled (default)
|
||||
# @on: Enabled
|
||||
# @unmap: Enabled and even try to unmap blocks if possible. This requires
|
||||
# also that @BlockdevDiscardOptions is set to unmap for this device.
|
||||
#
|
||||
# Since: 2.1
|
||||
##
|
||||
{ 'enum': 'BlockdevDetectZeroesOptions',
|
||||
'data': [ 'off', 'on', 'unmap' ] }
|
||||
|
||||
##
|
||||
# @BlockdevAioOptions
|
||||
#
|
||||
@ -4306,20 +4325,22 @@
|
||||
# Options that are available for all block devices, independent of the block
|
||||
# driver.
|
||||
#
|
||||
# @driver: block driver name
|
||||
# @id: #optional id by which the new block device can be referred to.
|
||||
# This is a required option on the top level of blockdev-add, and
|
||||
# currently not allowed on any other level.
|
||||
# @node-name: #optional the name of a block driver state node (Since 2.0)
|
||||
# @discard: #optional discard-related options (default: ignore)
|
||||
# @cache: #optional cache-related options
|
||||
# @aio: #optional AIO backend (default: threads)
|
||||
# @rerror: #optional how to handle read errors on the device
|
||||
# (default: report)
|
||||
# @werror: #optional how to handle write errors on the device
|
||||
# (default: enospc)
|
||||
# @read-only: #optional whether the block device should be read-only
|
||||
# (default: false)
|
||||
# @driver: block driver name
|
||||
# @id: #optional id by which the new block device can be referred to.
|
||||
# This is a required option on the top level of blockdev-add, and
|
||||
# currently not allowed on any other level.
|
||||
# @node-name: #optional the name of a block driver state node (Since 2.0)
|
||||
# @discard: #optional discard-related options (default: ignore)
|
||||
# @cache: #optional cache-related options
|
||||
# @aio: #optional AIO backend (default: threads)
|
||||
# @rerror: #optional how to handle read errors on the device
|
||||
# (default: report)
|
||||
# @werror: #optional how to handle write errors on the device
|
||||
# (default: enospc)
|
||||
# @read-only: #optional whether the block device should be read-only
|
||||
# (default: false)
|
||||
# @detect-zeroes: #optional detect and optimize zero writes (Since 2.1)
|
||||
# (default: off)
|
||||
#
|
||||
# Since: 1.7
|
||||
##
|
||||
@ -4332,7 +4353,8 @@
|
||||
'*aio': 'BlockdevAioOptions',
|
||||
'*rerror': 'BlockdevOnError',
|
||||
'*werror': 'BlockdevOnError',
|
||||
'*read-only': 'bool' } }
|
||||
'*read-only': 'bool',
|
||||
'*detect-zeroes': 'BlockdevDetectZeroesOptions' } }
|
||||
|
||||
##
|
||||
# @BlockdevOptionsFile
|
||||
|
||||
@ -414,6 +414,7 @@ DEF("drive", HAS_ARG, QEMU_OPTION_drive,
|
||||
" [,serial=s][,addr=A][,rerror=ignore|stop|report]\n"
|
||||
" [,werror=ignore|stop|report|enospc][,id=name][,aio=threads|native]\n"
|
||||
" [,readonly=on|off][,copy-on-read=on|off]\n"
|
||||
" [,detect-zeroes=on|off|unmap]\n"
|
||||
" [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]]\n"
|
||||
" [[,iops=i]|[[,iops_rd=r][,iops_wr=w]]]\n"
|
||||
" [[,bps_max=bm]|[[,bps_rd_max=rm][,bps_wr_max=wm]]]\n"
|
||||
@ -475,6 +476,11 @@ Open drive @option{file} as read-only. Guest write attempts will fail.
|
||||
@item copy-on-read=@var{copy-on-read}
|
||||
@var{copy-on-read} is "on" or "off" and enables whether to copy read backing
|
||||
file sectors into the image file.
|
||||
@item detect-zeroes=@var{detect-zeroes}
|
||||
@var{detect-zeroes} is "off", "on" or "unmap" and enables the automatic
|
||||
conversion of plain zero writes by the OS to driver specific optimized
|
||||
zero write commands. You may even choose "unmap" if @var{discard} is set
|
||||
to "unmap" to allow a zero write to be converted to an UNMAP operation.
|
||||
@end table
|
||||
|
||||
By default, the @option{cache=writeback} mode is used. It will report data
|
||||
|
||||
@ -2032,6 +2032,8 @@ Each json-object contain the following:
|
||||
- "iops_rd_max": read I/O operations max (json-int)
|
||||
- "iops_wr_max": write I/O operations max (json-int)
|
||||
- "iops_size": I/O size when limiting by iops (json-int)
|
||||
- "detect_zeroes": detect and optimize zero writing (json-string)
|
||||
- Possible values: "off", "on", "unmap"
|
||||
- "image": the detail of the image, it is a json-object containing
|
||||
the following:
|
||||
- "filename": image file name (json-string)
|
||||
@ -2108,6 +2110,7 @@ Example:
|
||||
"iops_rd_max": 0,
|
||||
"iops_wr_max": 0,
|
||||
"iops_size": 0,
|
||||
"detect_zeroes": "on",
|
||||
"image":{
|
||||
"filename":"disks/test.qcow2",
|
||||
"format":"qcow2",
|
||||
|
||||
@ -6,7 +6,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virtio-blk-pci,drive=disk,id=virtio0
|
||||
QMP_VERSION
|
||||
{"return": {}}
|
||||
{"return": [{"io-status": "ok", "device": "disk", "locked": false, "removable": false, "inserted": {"iops_rd": 0, "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "type": "unknown"}, {"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": [{"io-status": "ok", "device": "disk", "locked": false, "removable": false, "inserted": {"iops_rd": 0, "detect_zeroes": "off", "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "type": "unknown"}, {"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "DEVICE_DELETED", "data": {"path": "/machine/peripheral/virtio0/virtio-backend"}}
|
||||
@ -24,7 +24,7 @@ QMP_VERSION
|
||||
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
|
||||
QMP_VERSION
|
||||
{"return": {}}
|
||||
{"return": [{"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}, {"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": [{"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "detect_zeroes": "off", "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}, {"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
@ -44,7 +44,7 @@ Testing:
|
||||
QMP_VERSION
|
||||
{"return": {}}
|
||||
{"return": "OK\r\n"}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "detect_zeroes": "off", "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
@ -64,14 +64,14 @@ Testing:
|
||||
QMP_VERSION
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "detect_zeroes": "off", "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "DEVICE_DELETED", "data": {"path": "/machine/peripheral/virtio0/virtio-backend"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "DEVICE_DELETED", "data": {"device": "virtio0", "path": "/machine/peripheral/virtio0"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "RESET"}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"io-status": "ok", "device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": [{"io-status": "ok", "device": "ide1-cd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "floppy0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"device": "sd0", "locked": false, "removable": true, "tray_open": false, "type": "unknown"}, {"io-status": "ok", "device": "disk", "locked": false, "removable": true, "inserted": {"iops_rd": 0, "detect_zeroes": "off", "image": {"virtual-size": 134217728, "filename": "TEST_DIR/t.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": SIZE, "format-specific": {"type": "qcow2", "data": {"compat": "1.1", "lazy-refcounts": false}}, "dirty-flag": false}, "iops_wr": 0, "ro": false, "backing_file_depth": 0, "drv": "qcow2", "iops": 0, "bps_wr": 0, "encrypted": false, "bps": 0, "bps_rd": 0, "file": "TEST_DIR/t.qcow2", "encryption_key_missing": false}, "tray_open": false, "type": "unknown"}]}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN"}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user