diff options
Diffstat (limited to 'qmp-commands.hx')
| -rw-r--r-- | qmp-commands.hx | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx index c5f16dd922..a85d8479e3 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2146,6 +2146,8 @@ Each json-object contain the following: - "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" + - "write_threshold": write offset threshold in bytes, a event will be + emitted if crossed. Zero if disabled (json-int) - "image": the detail of the image, it is a json-object containing the following: - "filename": image file name (json-string) @@ -2223,6 +2225,7 @@ Example: "iops_wr_max": 0, "iops_size": 0, "detect_zeroes": "on", + "write_threshold": 0, "image":{ "filename":"disks/test.qcow2", "format":"qcow2", @@ -2303,6 +2306,10 @@ Each json-object contain the following: - "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int) - "wr_highest_offset": Highest offset of a sector written since the BlockDriverState has been opened (json-int) + - "rd_merged": number of read requests that have been merged into + another request (json-int) + - "wr_merged": number of write requests that have been merged into + another request (json-int) - "parent": Contains recursively the statistics of the underlying protocol (e.g. the host file for a qcow2 image). If there is no underlying protocol, this field is omitted @@ -2326,6 +2333,8 @@ Example: "rd_total_times_ns":3465673657 "flush_total_times_ns":49653 "flush_operations":61, + "rd_merged":0, + "wr_merged":0 } }, "stats":{ @@ -2337,7 +2346,9 @@ Example: "flush_operations":51, "wr_total_times_ns":313253456 "rd_total_times_ns":3465673657 - "flush_total_times_ns":49653 + "flush_total_times_ns":49653, + "rd_merged":0, + "wr_merged":0 } }, { @@ -2351,7 +2362,9 @@ Example: "flush_operations":0, "wr_total_times_ns":0 "rd_total_times_ns":0 - "flush_total_times_ns":0 + "flush_total_times_ns":0, + "rd_merged":0, + "wr_merged":0 } }, { @@ -2365,7 +2378,9 @@ Example: "flush_operations":0, "wr_total_times_ns":0 "rd_total_times_ns":0 - "flush_total_times_ns":0 + "flush_total_times_ns":0, + "rd_merged":0, + "wr_merged":0 } }, { @@ -2379,7 +2394,9 @@ Example: "flush_operations":0, "wr_total_times_ns":0 "rd_total_times_ns":0 - "flush_total_times_ns":0 + "flush_total_times_ns":0, + "rd_merged":0, + "wr_merged":0 } } ] @@ -3671,6 +3688,7 @@ Example: "iops_rd_max": 0, "iops_wr_max": 0, "iops_size": 0, + "write_threshold": 0, "image":{ "filename":"disks/test.qcow2", "format":"qcow2", @@ -3907,3 +3925,31 @@ Move mouse pointer to absolute coordinates (20000, 400). <- { "return": {} } EQMP + + { + .name = "block-set-write-threshold", + .args_type = "node-name:s,write-threshold:l", + .mhandler.cmd_new = qmp_marshal_input_block_set_write_threshold, + }, + +SQMP +block-set-write-threshold +------------ + +Change the write threshold for a block drive. The threshold is an offset, +thus must be non-negative. Default is no write threshold. +Setting the threshold to zero disables it. + +Arguments: + +- "node-name": the node name in the block driver state graph (json-string) +- "write-threshold": the write threshold in bytes (json-int) + +Example: + +-> { "execute": "block-set-write-threshold", + "arguments": { "node-name": "mydev", + "write-threshold": 17179869184 } } +<- { "return": {} } + +EQMP |