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X-Received-From: 2a00:1450:400c:c09::244 Subject: [Qemu-devel] [PATCH v3 1/4] Throttle: Create IOThrottle structure X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani kokkonen , alberto garcia , Pradeep Jagadeesh , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patchset introduces a new io throttle structure. This will be used in both block and fsdev devices. Signed-off-by: Pradeep Jagadeesh Reviewed-by: Eric Blake Reviewed-by: Greg Kurz --- qapi/block-core.json | 76 ++-------------------------------------------- qapi/iothrottle.json | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 89 insertions(+), 73 deletions(-) create mode 100644 qapi/iothrottle.json diff --git a/qapi/block-core.json b/qapi/block-core.json index 87fb747..93d346b 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -6,6 +6,7 @@ # QAPI common definitions { 'include': 'common.json' } +{ 'include': 'iothrottle.json' } ## # @SnapshotInfo: @@ -1760,84 +1761,13 @@ # # @device: Block device name (deprecated, use @id instead) # -# @id: The name or QOM path of the guest device (since: 2.8) -# -# @bps: total throughput limit in bytes per second -# -# @bps_rd: read throughput limit in bytes per second -# -# @bps_wr: write throughput limit in bytes per second -# -# @iops: total I/O operations per second -# -# @iops_rd: read I/O operations per second -# -# @iops_wr: write I/O operations per second -# -# @bps_max: total throughput limit during bursts, -# in bytes (Since 1.7) -# -# @bps_rd_max: read throughput limit during bursts, -# in bytes (Since 1.7) -# -# @bps_wr_max: write throughput limit during bursts, -# in bytes (Since 1.7) -# -# @iops_max: total I/O operations per second during bursts, -# in bytes (Since 1.7) -# -# @iops_rd_max: read I/O operations per second during bursts, -# in bytes (Since 1.7) -# -# @iops_wr_max: write I/O operations per second during bursts, -# in bytes (Since 1.7) -# -# @bps_max_length: maximum length of the @bps_max burst -# period, in seconds. It must only -# be set if @bps_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @bps_rd_max_length: maximum length of the @bps_rd_max -# burst period, in seconds. It must only -# be set if @bps_rd_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @bps_wr_max_length: maximum length of the @bps_wr_max -# burst period, in seconds. It must only -# be set if @bps_wr_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @iops_max_length: maximum length of the @iops burst -# period, in seconds. It must only -# be set if @iops_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @iops_rd_max_length: maximum length of the @iops_rd_max -# burst period, in seconds. It must only -# be set if @iops_rd_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @iops_wr_max_length: maximum length of the @iops_wr_max -# burst period, in seconds. It must only -# be set if @iops_wr_max is set as well. -# Defaults to 1. (Since 2.6) -# -# @iops_size: an I/O size in bytes (Since 1.7) -# # @group: throttle group name (Since 2.4) # # Since: 1.1 ## { 'struct': 'BlockIOThrottle', - 'data': { '*device': 'str', '*id': 'str', 'bps': 'int', 'bps_rd': 'int', - 'bps_wr': 'int', 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int', - '*bps_max': 'int', '*bps_rd_max': 'int', - '*bps_wr_max': 'int', '*iops_max': 'int', - '*iops_rd_max': 'int', '*iops_wr_max': 'int', - '*bps_max_length': 'int', '*bps_rd_max_length': 'int', - '*bps_wr_max_length': 'int', '*iops_max_length': 'int', - '*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int', - '*iops_size': 'int', '*group': 'str' } } + 'base': 'IOThrottle', + 'data': { '*device': 'str', '*group': 'str' } } ## # @block-stream: diff --git a/qapi/iothrottle.json b/qapi/iothrottle.json new file mode 100644 index 0000000..124ab40 --- /dev/null +++ b/qapi/iothrottle.json @@ -0,0 +1,86 @@ +# -*- Mode: Python -*- + +## +# == QAPI IOThrottle definitions +## +# @IOThrottle: +# +# A set of parameters describing iothrottle +# +# @id: The name or QOM path of the guest device (since: 2.8) +# +# @bps: total throughput limit in bytes per second +# +# @bps_rd: read throughput limit in bytes per second +# +# @bps_wr: write throughput limit in bytes per second +# +# @iops: total I/O operations per second +# +# @iops_rd: read I/O operations per second +# +# @iops_wr: write I/O operations per second +# +# @bps_max: total throughput limit during bursts, +# in bytes (Since 1.7) +# +# @bps_rd_max: read throughput limit during bursts, +# in bytes (Since 1.7) +# +# @bps_wr_max: write throughput limit during bursts, +# in bytes (Since 1.7) +# +# @iops_max: total I/O operations per second during bursts, +# in bytes (Since 1.7) +# +# @iops_rd_max: read I/O operations per second during bursts, +# in bytes (Since 1.7) +# +# @iops_wr_max: write I/O operations per second during bursts, +# in bytes (Since 1.7) +# +# @bps_max_length: maximum length of the @bps_max burst +# period, in seconds. It must only +# be set if @bps_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @bps_rd_max_length: maximum length of the @bps_rd_max +# burst period, in seconds. It must only +# be set if @bps_rd_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @bps_wr_max_length: maximum length of the @bps_wr_max +# burst period, in seconds. It must only +# be set if @bps_wr_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @iops_max_length: maximum length of the @iops burst +# period, in seconds. It must only +# be set if @iops_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @iops_rd_max_length: maximum length of the @iops_rd_max +# burst period, in seconds. It must only +# be set if @iops_rd_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @iops_wr_max_length: maximum length of the @iops_wr_max +# burst period, in seconds. It must only +# be set if @iops_wr_max is set as well. +# Defaults to 1. (Since 2.6) +# +# @iops_size: an I/O size in bytes (Since 1.7) +# +# +# Since: 2.10 +## +{ 'struct': 'IOThrottle', + 'data': { '*id': 'str', 'bps': 'int', 'bps_rd': 'int', + 'bps_wr': 'int', 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int', + '*bps_max': 'int', '*bps_rd_max': 'int', + '*bps_wr_max': 'int', '*iops_max': 'int', + '*iops_rd_max': 'int', '*iops_wr_max': 'int', + '*bps_max_length': 'int', '*bps_rd_max_length': 'int', + '*bps_wr_max_length': 'int', '*iops_max_length': 'int', + '*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int', + '*iops_size': 'int' } }